LM2904 Dual Operational Amplifier
JANUARY 2020 – REV. A. 1 SG Micro Corp
www.sg-micro.com
GENERAL DESCRIPTION The LM2904 consists of two independent, high-gain frequency-compensated operational amplifiers designed to operate from a single supply or dual supplies over a wide range of voltages.
The LM2904 is available in Green SOIC-8, MSOP-8 and TSSOP-8 packages. It is specified over the -40℃ to +125℃ temperature range.
APPLICATIONS Blu-ray Players and Home Theaters Chemical and Gas Sensors DVD Recorders and Players Digital Multimeter: Bench and Systems Digital Multimeter: Handhelds Field Transmitter: Temperature Sensors Motor Control: AC Induction, Brushed DC, Brushless DC, High-Voltage, Low-Voltage, Permanent Magnet, and Stepper Motors Oscilloscopes TV: LCD and Digital Temperature Sensors or Controllers Using Modbus Weigh Scales
FEATURES • Wide Supply Ranges
Single Supply: 3V to 32V Dual Supplies: ±1.5V to ±16V
• Low Quiescent Current: 440μA (TYP) • Gain-Bandwidth Product: 1.1MHz • Input Common Mode Voltage Range Includes
Ground, Allowing Direct Sensing Near Ground • Low Input Offset Voltage: 5.8mV (MAX) • Low Input Offset Current: 10pA (TYP) • Low Input Bias Current: 10pA (TYP) • Differential Input Voltage Range Equal to Maximum-
Rated Supply Voltage: 32V • Open-Loop Differential Voltage Gain: 111dB (TYP) • Internal Frequency Compensation • -40℃ to +125℃ Operating Temperature Range • Available in Green SOIC-8, MSOP-8 and TSSOP-8
Packages
LM2904 Dual Operational Amplifier
2 JANUARY 2020 SG Micro Corp
www.sg-micro.com
PACKAGE/ORDERING INFORMATION
MODEL PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE
RANGE ORDERING NUMBER
PACKAGE MARKING
PACKING OPTION
LM2904
SOIC-8 -40℃ to +125℃ LM2904XS8G/TR LM
2904XS8 XXXXX
Tape and Reel, 4000
MSOP-8 -40℃ to +125℃ LM2904XMS8G/TR LM2904 XMS8
XXXXX Tape and Reel, 4000
TSSOP-8 -40℃ to +125℃ LM2904XTS8G/TR LM2904
XTS8 XXXXX
Tape and Reel, 4000
MARKING INFORMATION NOTE: XXXXX = Date Code, Trace Code and Vendor Code.
Trace Code Vendor Code
Date Code - Year
X XXX X
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS Supply Voltage, VS
(1) ......................................... -0.3V to 34V Differential Input Voltage, VID
(2) .......................... -32V to 32V Input Voltage (Either Input) ................................ -0.3V to 32V Junction Temperature.................................................. +150℃ Storage Temperature Range ........................ -65℃ to +150℃ Lead Temperature (Soldering, 10s) ............................. +260℃ ESD Susceptibility HBM ............................................................................. 6000V CDM ............................................................................ 1000V RECOMMENDED OPERATING CONDITIONS Input Common Mode Voltage Range ......... -0.1V to VS - 1.5V Operating Temperature Range ..................... -40℃ to +125℃ NOTES: 1. All voltage values (except differential voltages and VS specified for the measurement of ISC) are with respect to the network GND. 2. Differential voltages are at +IN, with respect to -IN. OVERSTRESS CAUTION Stresses beyond those listed in Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Functional operation of the device at any conditions beyond those indicated in the Recommended Operating Conditions section is not implied.
ESD SENSITIVITY CAUTION This integrated circuit can be damaged if ESD protections are not considered carefully. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because even small parametric changes could cause the device not to meet the published specifications. DISCLAIMER SG Micro Corp reserves the right to make any change in circuit design, or specifications without prior notice.
PIN CONFIGURATIONS (TOP VIEW)
OUTA
OUTB
+INB
+VS
5
6
7
81
2
3
4
-INA
+INA
-VS
-INB+
+
_
_
SOIC-8/MSOP-8/TSSOP-8
LM2904 Dual Operational Amplifier
3
JANUARY 2020 SG Micro Corp www.sg-micro.com
ELECTRICAL CHARACTERISTICS (At TA = +25℃, VS = 3V to 32V, RL = 10kΩ connected to VS/2, -0.1V < VCM < VS - 1.5V, Full = -40℃ to +125℃, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS TEMP MIN TYP MAX UNITS
Input Characteristics
Input Offset Voltage VOS +25℃ 1.2 5.8
mV Full 6.8
Input Bias Current IB VS = 32V, VCM = VS/2 +25℃ 10 160 pA
Input Offset Current IOS VS = 32V, VCM = VS/2 +25℃ 10 100 pA
Maximum Differential Input Voltage IVIDI Full VS V
Input Common Mode Voltage Range VCM Full -0.1 VS - 1.5 V
Common Mode Rejection Ratio CMRR -0.1V < VCM < VS - 1.5V +25℃ 82 118
dB Full 72
Open-Loop Voltage Gain AOL RL = 10kΩ to VS/2 +25℃ 92 111
dB Full 83
Output Characteristics
High-Level Output Voltage VOH RL = 10kΩ +25℃ 42 60
mV Full 80
Low-Level Output Voltage VOL RL = 10kΩ +25℃ 110 190
mV Full 240
Output Short-Circuit Current ISC +25℃ 12 18 mA
Power Supply
Operating Voltage Range VS Full 3 32 V
Quiescent Current IQ IOUT = 0 +25℃ 440 680
μA Full 950
Power Supply Rejection Ratio PSRR +25℃ 102 122
dB Full 98
Turn-On Time G = +1 +25℃ 42 μs
Dynamic Performance (CLOAD = 100pF)
Gain-Bandwidth Product GBP +25℃ 1.1 MHz
Phase Margin +25℃ 60 ° Slew Rate SR G = +1 +25℃ 0.35 V/μs
Overload Recovery Time ORT VIN × G > VS +25℃ 2.3 μs
Noise
Input Voltage Noise f = 0.1Hz to 10Hz +25℃ 8.7 μVP-P
Input Voltage Noise Density en f = 1kHz +25℃ 36 nV/ Hz
LM2904 Dual Operational Amplifier
4
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, unless otherwise noted.
Positive Output Voltage Swing vs. Load Current Negative Output Voltage Swing vs. Load Current
Positive Output Swing vs. Load Current Negative Output Swing vs. Load Current
Input Bias Current vs. Input Common Mode Voltage Input Offset Voltage vs. Input Common Mode Voltage
0
0.5
1
1.5
2
2.5
3
3.5
0 10 20 30 40 50 60
Posi
tive
Out
put V
olta
ge S
win
g (V
)
ISOURCE (mA)
TA = -40℃
TA = +125℃
VS = 3V
TA = +25℃
0
0.5
1
1.5
2
2.5
3
3.5
0 10 20 30 40 50 60
Neg
ativ
e O
utpu
t Vol
tage
Sw
ing
(V)
ISINK (mA)
VS = 3V
TA = -40℃
TA = +25℃
TA = +125℃
0
1
2
3
4
5
6
0 10 20 30 40 50 60
Posi
tive
Out
put V
olta
ge S
win
g (V
)
ISOURCE (mA)
TA = -40℃
TA = +125℃
VS = 32V
TA = +25℃
0
1
2
3
4
5
6
0 10 20 30 40 50 60
Neg
ativ
e O
utpu
t Vol
tage
Sw
ing
(V)
ISINK (mA)
TA = -40℃
TA = +125℃
VS = 32V
TA = +25℃
0
2
4
6
8
10
-5 0 5 10 15 20 25 30 35
Inpu
t Bia
s C
urre
nt (p
A)
Input Common Mode Voltage (V)
VS = 32V
-0.45
-0.4
-0.35
-0.3
-0.25
-0.2
-5 0 5 10 15 20 25 30 35
Inpu
t Offs
et V
olta
ge (m
V)
Input Common Mode Voltage (V)
VS = 32V
LM2904 Dual Operational Amplifier
5
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Quiescent Current vs. Supply Voltage Quiescent Current vs. Temperature
Input Offset Current vs. Temperature Input Bias Current vs. Temperature
CMRR vs. Temperature PSRR vs. Temperature
200
210
220
230
240
250
3 8 13 18 23 28 33
Qui
esce
nt C
urre
nt/A
mpl
ifier
(μA)
Supply Voltage (V)
0
50
100
150
200
250
300
350
-50 -25 0 25 50 75 100 125
Qui
esce
nt C
urre
nt/A
mpl
ifier
(μA)
Temperature (℃)
VS = 5V
VS = 32V
VS = 3V
-400
-300
-200
-100
0
100
-50 -25 0 25 50 75 100 125
Inpu
t Offs
et C
urre
nt (p
A)
Temperature (℃)
VS = 32V
VS = 5V
VS = 3V
-800
-600
-400
-200
0
200
-50 -25 0 25 50 75 100 125
Inpu
t Bia
s C
urre
nt (p
A)
Temperature (℃)
VS = 32V
VS = 5V
VS = 3V
0
30
60
90
120
150
-50 -25 0 25 50 75 100 125
CM
RR
(dB)
Temperature (℃)
VS = 32V VS = 5V VS = 3V
0
30
60
90
120
150
180
-50 -25 0 25 50 75 100 125
PSR
R (d
B)
Temperature (℃)
LM2904 Dual Operational Amplifier
6
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Output Short-Circuit Current (ISOURCE) vs. Temperature Output Short-Circuit Current (ISINK) vs. Temperature
Gain-Bandwidth Product vs. Temperature Gain-Bandwidth Product vs. Temperature
CMRR vs. Frequency PSRR vs. Frequency
0
10
20
30
40
50
60
-50 -25 0 25 50 75 100 125
I SO
UR
CE
(mA)
Temperature (℃)
VS = 5V
VS = 32V
VS = 3V
-60
-50
-40
-30
-20
-10
0
-50 -25 0 25 50 75 100 125
I SIN
K (m
A)
Temperature (℃)
VS = 32V
VS = 3V VS = 5V
0.8
0.9
1
1.1
1.2
1.3
1.4
-50 -25 0 25 50 75 100 125
Gai
n-Ba
ndw
idth
Pro
duct
(MH
z)
Temperature (℃)
VS = 3V
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-50 -25 0 25 50 75 100 125
Gai
n-Ba
ndw
idth
Pro
duct
(MH
z)
Temperature (℃)
VS = 32V
-150
-120
-90
-60
-30
0
0.1 1 10 100 1000 10000 100000
CM
RR
(dB)
Frequency (kHz)
VS = 3V
VS = 32V
VS = 5V
-150
-120
-90
-60
-30
0
0.01 0.1 1 10 100 1000 10000100000
PSR
R (d
B)
Frequency (kHz)
— VS = 3V, +PSRR — VS = 3V, -PSRR — VS = 5V, +PSRR — VS = 5V, -PSRR — VS = 32V, +PSRR — VS = 32V, -PSRR
LM2904 Dual Operational Amplifier
7
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Channel Separation vs. Frequency Channel Separation vs. Frequency
THD+N vs. Frequency THD+N vs. Frequency
+IN EMIRR vs. Frequency +IN EMIRR vs. Frequency
-120
-110
-100
-90
-80
-70
-60
0.1 1 10 100 1000 10000
Cha
nnel
Sep
arat
ion
(dB)
Frequency (kHz)
Channel B to A
Channel A to B
VS = 3V
-120
-110
-100
-90
-80
-70
-60
0.1 1 10 100 1000 10000
Cha
nnel
Sep
arat
ion
(dB)
Frequency (kHz)
VS = 32V
Channel A to B
Channel B to A
0
0.002
0.004
0.006
0.008
0.01
10 100 1000 10000 100000
THD
+N (%
)
Frequency (Hz)
VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ
0.0004
0.0008
0.0012
0.0016
0.002
0.0024
10 100 1000 10000 100000
THD
+N (%
)
Frequency (Hz)
VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ VS = 32V, G = +1, VOUT = 1VP-P, RL = 2kΩ
0
20
40
60
80
100
10 100 1000 10000
+IN
EM
IRR
(dB)
Frequency (MHz)
VS = 3V, PRF = -10dBm
0
20
40
60
80
100
120
10 100 1000 10000
+IN
EM
IRR
(dB)
Frequency (MHz)
VS = 32V, PRF = -10dBm
LM2904 Dual Operational Amplifier
8
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Input Voltage Noise Density vs. Frequency Input Voltage Noise Density vs. Frequency
Input Voltage Noise Density vs. Frequency Open-Loop Gain and Phase vs. Frequency
Slew Rate (up) Slew Rate (down)
1
10
100
1000
10 100 1000 10000
Inpu
t Vol
tage
Noi
se D
ensi
ty (n
V/√H
z)
Frequency (Hz)
VS = 3V
1
10
100
1000
10 100 1000 10000
Inpu
t Vol
tage
Noi
se D
ensi
ty (n
V/√H
z)
Frequency (Hz)
VS = 5V
1
10
100
1000
10 100 1000 10000
Inpu
t Vol
tage
Noi
se D
ensi
ty (n
V/√H
z)
Frequency (Hz)
VS = 32V
-180
-150
-120
-90
-60
-30
0
-20
0
20
40
60
80
100
0.01 0.1 1 10 100 1000 10000100000
Phas
e (d
egre
e)
Ope
n-Lo
op G
ain
(dB)
Frequency (kHz)
Open-Loop Gain
Phase
VS = 32V
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
Volta
ge (V
)
Time (2µs/div)
VS = 3V, VOUT = 1VP-P, f = 1kHz, G = +1
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
Volta
ge (V
)
Time (2µs/div)
VS = 3V, VOUT = 1VP-P, f = 1kHz, G = +1
LM2904 Dual Operational Amplifier
9
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Slew Rate (up) Slew Rate (down)
Slew Rate (up) Slew Rate (down)
Positive Overload Recovery Time Negative Overload Recovery Time
1
1.5
2
2.5
3
3.5
4
Volta
ge (V
)
Time (5µs/div)
VS = 5V, VOUT = 2VP-P, f = 1kHz, G = +1
1
1.5
2
2.5
3
3.5
4
Volta
ge (V
)
Time (5µs/div)
VS = 5V, VOUT = 2VP-P, f = 1kHz, G = +1
14.5
15
15.5
16
16.5
17
17.5
Volta
ge (V
)
Time (5µs/div)
VS = 32V, VOUT = 2VP-P, f = 1kHz, G = +1
14.5
15
15.5
16
16.5
17
17.5
Volta
ge (V
)
Time (5µs/div)
VS = 32V, VOUT = 2VP-P, f = 1kHz, G = +1
Time (5μs/div)
VS= 3V, G = -10, f = 1kHz
0V
1.5V
VIN
VOUT
200mV/div
500mV/div
Time (5μs/div)
VS = 3V, G = -10, f = 1kHz
0V
0V
VIN
VOUT
200mV/div
500mV/div
LM2904 Dual Operational Amplifier
10
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Positive Overload Recovery Time Negative Overload Recovery Time
Positive Overload Recovery Time Negative Overload Recovery Time
Large-Signal Step Response Small-Signal Step Response
Time (5μs/div)
VS = 5V, G = -10, f = 1kHz
0V
2.5V
VIN
VOUT
200mV/div
1V/div Time (5μs/div)
VS = 5V, G = -10, f = 1kHz
0V
0V
VIN
VOUT
200mV/div
1V/div
Time (10μs/div)
VS = 32V, G = -10, f = 1kHz
0V
16V
VIN
VOUT
2V/div 5V/div
Time (10μs/div)
VS = 32V, G = -10, f = 1kHz
0V
0V
VIN
VOUT
2V/div 5V/div
Out
put V
olta
ge (2
50m
V/di
v)
Time (5μs/div)
VS = 3V, G = +1, f = 20kHz, VOUT = 1VP-P, RL = 10kΩ, CL = 100pF
Out
put V
olta
ge (5
0mV/
div)
Time (5μs/div)
VS = 3V, G = +1, f = 20kHz, VOUT = 0.1VP-P, RL = 10kΩ, CL = 100pF
LM2904 Dual Operational Amplifier
11
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Large-Signal Step Response Small-Signal Step Response
Large-Signal Step Response Small-Signal Step Response
Turn-On Time Turn-On Time
Out
put V
olta
ge (5
00m
V/di
v)
Time (5μs/div)
VS = 5V, G = +1, f = 20kHz, VOUT = 2VP-P, RL = 10kΩ, CL = 100pF
Out
put V
olta
ge (5
0mV/
div)
Time (5μs/div)
VS = 5V, G = +1, f = 20kHz, VOUT = 0.1VP-P, RL = 10kΩ, CL = 100pF
Out
put V
olta
ge (5
00m
V/di
v)
Time (5μs/div)
VS = 32V, G = +1, f = 20kHz, VOUT = 2VP-P, RL = 10kΩ, CL = 100pF
Out
put V
olta
ge (5
0mV/
div)
Time (5μs/div)
VS = 32V, G = +1, f = 20kHz, VOUT = 0.1VP-P, RL = 10kΩ, CL = 100pF
Time (20μs/div)
VS = 3V, VIN = 0.1V, G = +1, RL =10kΩ, CL = 100pF
0V
0V
VS
VOUT
1V/div 200m
V/div
Time (20μs/div)
VS = 5V, VIN = 0.1V, G = +1, RL =10kΩ, CL = 100pF
0V
0V
VS
VOUT
2V/div 500m
V/div
LM2904 Dual Operational Amplifier
12
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Turn-On Time 0.1Hz to 10Hz Input Voltage Noise
0.1Hz to 10Hz Input Voltage Noise 0.1Hz to 10Hz Input Voltage Noise
Offset Voltage Production Distribution Offset Voltage Production Distribution
Time (20μs/div)
VS = 32V, VIN = 0.1V, G = +1, RL =10kΩ, CL = 100pF
0V
0V
VS
VOUT
10V/div 1V/div
Noi
se (2
μV/d
iv)
Time (2s/div)
VS = 3V
Noi
se (2
μV/d
iv)
Time (2s/div)
VS = 5V
Noi
se (2
μV/d
iv)
Time (2s/div)
VS = 32V
0
5
10
15
20
-3-2
.7-2
.4-2
.1-1
.8-1
.5-1
.2-0
.9-0
.6-0
.3 00.
30.
60.
91.
21.
51.
82.
12.
42.
7 3
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage (mV)
34200 Samples 1 Production Lot
VS = 3V
0
5
10
15
20
-3-2
.7-2
.4-2
.1-1
.8-1
.5-1
.2-0
.9-0
.6-0
.3 00.
30.
60.
91.
21.
51.
82.
12.
42.
7 3
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage (mV)
34200 Samples 1 Production Lot
VS = 5V
LM2904 Dual Operational Amplifier
13
JANUARY 2020 SG Micro Corp www.sg-micro.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.
Offset Voltage Production Distribution Offset Voltage Drift Distribution
Offset Voltage Drift Distribution Offset Voltage Drift Distribution
0
5
10
15
20
-3-2
.7-2
.4-2
.1-1
.8-1
.5-1
.2-0
.9-0
.6-0
.3 00.
30.
60.
91.
21.
51.
82.
12.
42.
7 3
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage (mV)
34200 Samples 1 Production Lot
VS = 32V
0
10
20
30
40
0 1 2 3 4 5 6 7 8 9 10 11 12
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage Drift (μV/℃)
VS = 3V, -40℃ ≤ TA ≤ +125℃
0
10
20
30
40
0 1 2 3 4 5 6 7 8 9 10 11 12
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage Drift (μV/℃)
VS = 5V, -40℃ ≤ TA ≤ +125℃
0
10
20
30
40
0 1 2 3 4 5 6 7 8 9 10 11 12
Perc
enta
ge o
f Am
plifi
ers
(%)
Offset Voltage Drift (μV/℃)
VS = 32V, -40℃ ≤ TA ≤ +125℃
LM2904 Dual Operational Amplifier
14
JANUARY 2020 SG Micro Corp www.sg-micro.com
DETAILED DESCRIPTION The LM2904 consists of two independent, high-gain frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. Operation from dual supplies is also possible if the difference between the two supplies is 3V to 32V, and VS is at least 1.5V more positive than the input common mode voltage.
Applications include transducer amplifiers, DC amplification blocks, and all the conventional operational amplifier circuits that now can be implemented more easily in single-supply-voltage systems. For example, the device can be operated directly from the standard 5V supply used in digital systems and can easily provide the required interface electronics without additional ±5V supplies.
Unity-Gain Bandwidth The unity-gain bandwidth is the frequency up to which an amplifier with a unity gain may be operated without greatly distorting the signal. The device has a 1.1MHz unity-gain bandwidth.
Slew Rate The slew rate is the rate at which an operational amplifier can change its output when there is a change on the input. The device has a 0.35V/μs slew rate.
Input Common Mode Range The valid common mode voltage range is from device ground to VS - 1.5V. Inputs may exceed VS up to the maximum VS without device damage. At least one input must be in the valid input common mode voltage range for output to be correct phase. If both inputs exceed valid range then output phase is undefined. If either input is less than -0.3V then input current should be limited to 1mA and output phase is undefined.
Device Functional Modes The device is powered on when the supply is connected. This device can be operated as a single-supply operational amplifier or dual-supply amplifier depending on the application.
APPLICATION INFORMATION The LM2904 operational amplifier is useful in a wide range of signal conditioning applications. Inputs can be powered before VS for flexibility in multiple supply circuits.
Typical Application A typical application for an operational amplifier is an inverting amplifier. This amplifier takes a positive voltage on the input and makes it a negative voltage of the same magnitude. In the same manner, it also makes negative voltages positive.
RF
RI
VIN
VOUT
VSUP+
VSUP-
+
_
Figure 1. Application Schematic
The supply voltage must be chosen such that it is larger than the input voltage range and output range. For instance, this application will scale a signal of ±0.5V to ±1.8V. Setting the supply at ±12V is sufficient to accommodate this application.
Determine the gain required by the inverting amplifier using Equation 1 and Equation 2:
OUTV
IN
VA = V
(1)
V1.8A = = -3.6-0.5
(2)
Once the desired gain is determined, choose a value for RI or RF. Choosing a value in the kΩ range is desirable because the amplifier circuit will use currents in the milliamp range. This ensures the part will not draw too much current. This example will choose 10kΩ for RI which means 36kΩ will be used for RF. This was determined by Equation 3.
FV
I
RA = -R
(3)
LM2904 Dual Operational Amplifier
15
JANUARY 2020 SG Micro Corp www.sg-micro.com
REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. JANUARY 2020 ‒ REV.A to REV.A.1 Page
Updated Absolute Maximum Ratings section ....................................................................................................................................................... 2 Updated Electrical Characteristics section ........................................................................................................................................................... 3
Changes from Original (JUNE 2019) to REV.A Page
Changed from product preview to production data ............................................................................................................................................. All
PACKAGE INFORMATION
TX00010.000 SG Micro Corp www.sg-micro.com
PACKAGE OUTLINE DIMENSIONS SOIC-8
Symbol Dimensions
In Millimeters Dimensions
In Inches MIN MAX MIN MAX
A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 D 4.700 5.100 0.185 0.200 E 3.800 4.000 0.150 0.157
E1 5.800 6.200 0.228 0.244 e 1.27 BSC 0.050 BSC L 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8°
D
EE1
e
b
A
A2
A1 c
L
θ
1.27
0.6
2.2
5.2
RECOMMENDED LAND PATTERN (Unit: mm)
PACKAGE INFORMATION
TX00014.000 SG Micro Corp www.sg-micro.com
PACKAGE OUTLINE DIMENSIONS MSOP-8
Symbol Dimensions
In Millimeters Dimensions
In Inches MIN MAX MIN MAX
A 0.820 1.100 0.032 0.043 A1 0.020 0.150 0.001 0.006 A2 0.750 0.950 0.030 0.037 b 0.250 0.380 0.010 0.015 c 0.090 0.230 0.004 0.009 D 2.900 3.100 0.114 0.122 E 2.900 3.100 0.114 0.122
E1 4.750 5.050 0.187 0.199 e 0.650 BSC 0.026 BSC L 0.400 0.800 0.016 0.031 θ 0° 6° 0° 6°
E1 E
e
D
A1
L
c
A
A2 θ
b
RECOMMENDED LAND PATTERN (Unit: mm)
1.02
0.41 0.65
4.8
PACKAGE INFORMATION
TX00018.000 SG Micro Corp www.sg-micro.com
PACKAGE OUTLINE DIMENSIONS TSSOP-8
Symbol Dimensions
In Millimeters Dimensions
In Inches MIN MAX MIN MAX
A 1.100 0.043 A1 0.050 0.150 0.002 0.006 A2 0.800 1.000 0.031 0.039 b 0.190 0.300 0.007 0.012 c 0.090 0.200 0.004 0.008 D 2.900 3.100 0.114 0.122 E 4.300 4.500 0.169 0.177
E1 6.250 6.550 0.246 0.258 e 0.650 BSC 0.026 BSC L 0.500 0.700 0.02 0.028 H 0.25 TYP 0.01 TYP θ 1° 7° 1° 7°
EE1
De
b
A
θ
L
cHA1A2
0.65
1.78
0.42
5.94
RECOMMENDED LAND PATTERN (Unit: mm)
PACKAGE INFORMATION
TX10000.000 SG Micro Corp
www.sg-micro.com
TAPE AND REEL INFORMATION NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Package Type Reel Diameter
Reel Width W1
(mm) A0
(mm) B0
(mm) K0
(mm) P0
(mm) P1
(mm) P2
(mm) W
(mm) Pin1
Quadrant
DD0001
SOIC-8 13″ 12.4 6.40 5.40 2.10 4.0 8.0 2.0 12.0 Q1
MSOP-8 13″ 12.4 5.20 3.30 1.50 4.0 8.0 2.0 12.0 Q1
TSSOP-8 13″ 12.4 6.76 3.30 1.80 4.0 8.0 2.0 12.0 Q1
Reel Width (W1)
Reel Diameter
REEL DIMENSIONS
TAPE DIMENSIONS
DIRECTION OF FEED
P2 P0
W
P1 A0 K0
B0Q1 Q2
Q4Q3 Q3 Q4
Q2Q1
Q3 Q4
Q2Q1
PACKAGE INFORMATION
TX20000.000 SG Micro Corp
www.sg-micro.com
CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Reel Type Length (mm)
Width (mm)
Height (mm) Pizza/Carton
DD0002 13″ 386 280 370 5