sgm8140 low power, vibration sensor and pir sensor analog

SGM8140

Low Power, Vibration Sensor and PIR Sensor Analog Front End (AFE)

SG Micro Corp www.sg-micro.com

NOVEMBER2015– REV.A

GENERAL DESCRIPTION The SGM8140 is a PIR sensor and vibration sensor analog front end which consists of 2 independent building block circuits. One is a dual rail-to-rail input and output operational amplifier, and the other is an ultra-low power comparator. Both the operational amplifier and the comparator have been specifically designed to operate over a wide range of voltages from 1.4V to 5.5V. The SGM8140 only has 1.1μA working current, so it is ideal for use in a variety of battery- powered applications.

The operational amplifier circuit is guaranteed to operate with a single supply voltage as low as 1.4V. It has a gain-bandwidth product of 5kHz (TYP) and is unity-gain stable. These specifications make this operational amplifier appropriate for low frequency applications, such as battery current monitoring and sensor conditioning.

Featuring a push-pull output stage, the SGM8140’s comparator allows for operation with absolute minimum power consumption when driving any capacitive or resistive load.

The SGM8140 is specified for the -40℃ to +85℃industrial temperature range. The SGM8140 is available in a Green TQFN-4×4-16L package.

FEATURES ● Ultra Low Power: 1.1μA (TYP) at VS = 5V ● Wide Supply Voltage Range: 1.4V to 5.5V ● Rail-to-Rail Input and Output Amplifier ● Amplifier Gain-Bandwidth Product:

5kHz (TYP) at VS = 5V ● Amplifier is Unity-Gain Stable ● Comparator Propagation Delay: 6μs (TYP) ● Comparator Push-Pull Output Current Drive:

19mA (TYP) at VS = 5V ● -40℃ to +85℃ Operating Temperature Range ● Available in a Green TQFN-4×4-16L Package APPLICATIONS Toll Booth Tags Wearable Products Temperature Measurements Battery Powered Systems Vibration Detectors Alarm and Monitoring Circuits

Low Power, Vibration Sensor and SGM8140 PIR Sensor Analog Front End (AFE)

2 NOVEMBER 2015 SG Micro Corp

www.sg-micro.com

PACKAGE/ORDERING INFORMATION

MODEL PACKAGE DESCRIPTION

SPECIFIED TEMPERATURE

RANGE ORDERING NUMBER

PACKAGE MARKING

PACKING OPTION

SGM8140 TQFN-4×4-16L -40℃ to +85℃ SGM8140YTQE16G/TR SGM8140 YTQE16 XXXXX

Tape and Reel, 3000

MARKING INFORMATION NOTE: XXXXX = Date Code and Vendor Code.

Date Code - WeekVendor 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, VCC ........................................................... 6V Input Common Mode Voltage Range .................................................... (-VS) - 0.1V to (+VS) + 0.1V Differential Input Voltage ................................... |(-VS) - (+VS)| Junction Temperature ................................................. +150℃ Storage Temperature Range ........................ -65℃ to +150℃ Lead Temperature (Soldering, 10s) ............................ +260℃ ESD Susceptibility HBM ............................................................................. 4000V CDM ............................................................................ 1000V RECOMMENDED OPERATING CONDITIONS Operating Temperature Range ....................... -40℃ to +85℃ 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.



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PIN CONFIGURATION

(TOP VIEW)

-VS

1

2

3

4

5 7 8

9

10

NC

INB+

NCVOUTB

-VS

INB-

INA+

CIN+

6

11

12

131416

CIN- NC COUT

+VS

VOUTA

INA-

15

-VS

-VS

TQFN-4×4-16L

FUNCTIONAL BLOCK DIAGRAM

Amplifier A

Amplifier B

Comparator

CIN+

CIN-COUT

INA+

INA-VOUTA

INB+

INB-VOUTB

+VS

-VS

PIN DESCRIPTION

PIN NAME FUNCTION

1 INB- Negative Input of Amplifier B.

2 INB+ Positive Input of Amplifier B.

3 VOUTB Output of Amplifier B.

4 -VS Negative Supply. Always connect this pin to ground for single power supply application.

5 CIN+ Positive Input of Comparator.

6 CIN- Negative Input of Comparator.

7 NC No Connection.

8 COUT Output of Comparator.

9 -VS Negative Supply. Always connect this pin to ground for single power supply application.

10 NC No Connection.

11 +VS Positive Power Supply.

12 VOUTA Output of Amplifier A.

13 INA- Negative Input of Amplifier A.

14 INA+ Positive Input of Amplifier A.

15 NC No Connection.

16 -VS Negative Supply. Always connect this pin to ground for single power supply pplication.



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ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS

Quiescent Current VS = 5V, VCM = 2.5V, TA = +25℃ 1.1 2.2

µA VS = 1.4V, VCM = 0.7V, TA = +25℃ 0.9

Operational Amplifier Only (VS = 1.4V to 5V, -VS = GND, TA = +25℃, VCM = VS/2, VOUT ≈ VS/2 and RL = 1MΩ to VS/2, unless otherwise noted.)

PARAMETER CONDITIONS MIN TYP MAX UNITS

DC Electrical Characteristics

Input Offset Voltage (VOS) VCM = VS/2 0.4 2.5 mV

Input Offset Voltage Drift (ΔVOS /ΔT) VCM = VS/2 2 µV/°C

Power Supply Rejection Ratio (PSRR) VS = 1.4V to 5.5V 69 80 dB

Input Common Mode Voltage Range (VCMR) (-VS) - 0.1 (+VS) + 0.1 V

Common Mode Rejection Ratio (CMRR)

VS = 5V, VCM = -0.1V to 5.1V 68 83

dB VS = 5V, VCM = 2.5V to 5.1V 67 82

VS = 5V, VCM = -0.1V to 2.5V 62 77

Large-Signal Voltage Gain (AVO) VS = 1.4V, RL = 50kΩ, VOUT = (+VS) - 0.1V 75 80

dB VS = 5V, RL = 50kΩ, VOUT = (+VS) - 0.1V 87 93

Input Bias Current (IB) 1 pA

Input Offset Current (IOS) 1 pA

Maximum Output Voltage Swing

VOH VS = 1.4V, RL = 50kΩ 5 12

mV VS = 5V, RL = 50kΩ 4 12

VOL VS = 1.4V, RL = 50kΩ 4.6 12

VS = 5V, RL = 50kΩ 3.6 12

Short-Circuit Current (ISC) VS = 5V, source 20 24

mA VS = 5V, sink 20 24

Supply Voltage 1.4 5.5 V

AC Electrical Characteristics (CL = 60pF)

Gain-Bandwidth Product (GBP) VS = 1.4V 4.3

kHz VS = 5V 5

Slew Rate (SR) VS = 1.4V, VOUT = 1V step 1.3

V/ms VS = 5V, VOUT = 2V step 1.6

Phase Margin (PM) VS = 1.4V to 5.5V 60 °

Input Voltage Noise (en p-p) VS = 1.4V, f = 0.1Hz to 10Hz 4.4

µVP-P VS = 5V, f = 0.1Hz to 10Hz 4.0

Input Voltage Noise Density (en) VS = 1.4V, f = 1kHz 135

nV/ HZ VS = 5V, f = 1kHz 130



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ELECTRICAL CHARACTERISTICS (continued) Comparator Only (TA = +25℃, VS = 1.4V, -VS = 0V, VCM = VS/2 and VOUT = -VS, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage VOS VCM = 0V 0.5 3.3

mV VCM = 1.4V 0.5 3.2

Input Offset Average Drift 2 µV/℃

Common Mode Rejection Ratio CMRR

VCM stepped from 0V to 0.3V 65

dB VCM stepped from 0.8V to 1.4V 75


Power Supply Rejection Ratio PSRR VS = 1.8V to 5.5V, VCM = 0V 65 95 dB

Large-Signal Voltage Gain AVO 100 dB

Output Swing High VOH

VS = 1.8V, IOUT = 500μA 131 202

mV -40℃ ≤ TA ≤ +85℃ 219

VS = 1.8V, IOUT = 1mA 292 476

-40℃ ≤ TA ≤ +85℃ 512

Output Swing Low VOL

VS = 1.8V, IOUT = -500μA 82 112

mV -40℃ ≤ TA ≤ +85℃ 127

VS = 1.8V, IOUT = -1mA 167 225

-40℃ ≤ TA ≤ +85℃ 253

Output Current IOUT Source 0.7

mA Sink 2.0

Propagation Delay (High to Low) Overdrive = 10mV 12

μs Overdrive = 100mV 6

Propagation Delay (Low to High) Overdrive = 10mV 26


Rise Time tRise Overdrive = 10mV, CL = 30pF, RL = 1MΩ 220

ns Overdrive = 100mV, CL = 30pF, RL = 1MΩ 220

Fall Time tFall Overdrive = 10mV, CL = 30pF, RL = 1MΩ 155




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ELECTRICAL CHARACTERISTICS (continued) Comparator Only (continued) (TA = +25℃, VS = 5V, -VS = 0V, VCM = VS/2 and VOUT = -VS, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage VOS VCM = 0V 0.5 3.3

mV VCM = 5V 0.5 3.2

Input Offset Average Drift 2 µV/℃

Common Mode Rejection Ratio CMRR


dB VCM stepped from 4.4V to 5V 85

VCM stepped from 0V to 5V 85

Power Supply Rejection Ratio PSRR VS = 1.8V to 5.5V, VCM = 0V 65 95 dB

Large-Signal Voltage Gain AVO 105 dB

Output Swing High VOH

IOUT = 500μA 48 77

mV -40℃ ≤ TA ≤ +85℃ 84

IOUT = 1mA 96 136

-40℃ ≤ TA ≤ +85℃ 152

Output Swing Low VOL

IOUT = -500μA 52 80

mV -40℃ ≤ TA ≤ +85℃ 90

IOUT = -1mA 104 130

-40℃ ≤ TA ≤ +85℃ 143

Output Current IOUT

Source 13.5 18

mA -40℃ ≤ TA ≤ +85℃ 11.5

Sink 15 19

-40℃ ≤ TA ≤ +85℃ 12.9

Propagation Delay (High to Low) Overdrive = 10mV 13


Propagation Delay (Low to High) Overdrive = 10mV 42


Rise Time tRise Overdrive = 10mV, CL = 30pF, RL = 1MΩ 85


Fall Time tFall Overdrive = 10mV, CL = 30pF, RL = 1MΩ 70




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TYPICAL PERFORMANCE CHARACTERISTICS Operational Amplifier Only TA = +25℃, VS = 1.4V to 5V, -VS = GND, VCM = VS/2, VOUT ≈ VS/2 and RL = 1MΩ to VS/2, CL = 60pF, unless otherwise noted.

Large Signal Inverting Pulse Response Large Signal Non-Inverting Pulse Response

Time (5ms/div)

VO

UT (1

V/di

v) VS = 5.0VRL = 50kΩCL = 60pFAV = -1

Time (5ms/div)V O

UT

(1V/

div)

VS = 5.0VRL = 50kΩCL = 60pFAV = +1

Small Signal Inverting Pulse Response Small Signal Non-Inverting Pulse Response

Time (5ms/div)

V OU

T (10

mV/

div)

CL = 60pFRL = 50kΩAV = -1

Time (5ms/div)

V OU

T (1

0mV/

div)

CL = 60pFRL = 50kΩAV = +1

No Phase Reversal Slew Rate vs. Temperature

-4

-3

-2

-1

0

1

2

3

4

Time (5ms/div)

Inpu

t, O

utpu

t Vol

tage

(V)

VOUT

VIN

0

1

2

3

4

5

-50 -25 0 25 50 75 100Temperature (℃)

Slew

Rat

e (V

/ms)

VS = 5.5VVS = 1.4V

High to Low

Low to High



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TYPICAL PERFORMANCE CHARACTERISTICS (continued) Operational Amplifier Only (continued) TA = +25℃, VS = 1.4V to 5V, -VS = GND, VCM = VS/2, VOUT ≈ VS/2 and RL = 1MΩ to VS/2, CL = 60pF, unless otherwise noted.

Offset Voltage Production Distribution at +1.4V Offset Voltage Production Distribution at +5V

0

5

10

15

20

25

30

35

40

-3 -2 -1 0 1 2 3

Offset Voltage (mV)

Perc

enta

ge o

f Am

plifi

ers

(%)

9600 SamplesVCM = +VS/2

0

5

10

15

20

25

30

35

40

-3 -2 -1 0 1 2 3

Offset Voltage (mV)

Perc

enta

ge o

f Am

plifi

ers

(%)

9600 SamplesVCM = +VS/2

Comparator Only

Output Voltage Low vs. Sink Current Output Voltage Low vs. Sink Current

0

0.1

0.2

0.3

0.4

0.5

0.6

0 1 2 3 4 5 6Sink Current (mA)

Out

put V

olta

ge R

efer

ence

d to

GN

D (V

)

VS = 5V

VS = 2.5V

VS = 1.4V

0

0.1

0.2

0.3

0.4

0.5

0.6

0 1 2 3 4 5 6Sink Current (mA)

Out

put V

olta

ge R

efer

ence

d to

GN

D (V

)

-40℃

+25℃

+85℃



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TYPICAL PERFORMANCE CHARACTERISTICS (continued) Comparator Only (continued)

Output Voltage High vs. Source Current Output Voltage High vs. Source Current

0

0.1

0.2

0.3

0.4

0.5

0.6

0 1 2 3 4 5 6Source Current (mA)

Out

put V

olta

ge R

efer

ence

d to

VS

(V)

VS = 5V

VS = 2.5VVS = 1.4V

0

0.1

0.2

0.3

0.4

0.5

0.6

0 1 2 3 4 5 6Source Current (mA)

Out

put V

olta

ge R

efer

ence

d to

VS

(V)

-40℃

+25℃

+85℃

Propagation Delay vs. Supply Voltage Propagation Delay vs. Supply Voltage

0

15

30

45

60

75

90

1 2 3 4 5 6Supply Voltage (V)

Prop

agat

ion

Del

ay L

–H (µ

s)

VCM = VS /2VOD = 20mV

+85℃

+25℃

-40℃

0

4

8

12

16

20

1 2 3 4 5 6Supply Voltage (V)

Prop

agat

ion

Del

ay H

–L (µ

s)

VCM = VS /2VOD = 20mV

-40℃

+25℃

+85℃

Propagation Delay vs. Overdrive Propagation Delay vs. Overdrive

0

10

20

30

40

50

60

0 100 200 300 400 500Overdrive (mV)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 1.4VVCM = 0.5V

+25℃-40℃

+85℃

0

5

10

15

20

25

30

0 100 200 300 400 500Overdrive (mV)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 1.4VVCM = 0.9V

+25℃

-40℃

+85℃



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0

10

20

30

40

50

60

70

0 100 200 300 400 500Overdrive (mV)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 2.5VVCM = 0.5V

+25℃

-40℃

+85℃

0

10

20

30

40

50

60

0 100 200 300 400 500Overdrive (mV)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 5VVCM = 4.5V

+25℃

-40℃

+85℃

Propagation Delay vs. Overdrive Offset Voltage vs. Input Common Mode Voltage

0

20

40

60

80

100

0 100 200 300 400 500Overdrive (mV)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 5VVCM = 0.5V

+25℃

-40℃

+85℃

0

200

400

600

800

1000

0 1 2 3 4 5Input Common Mode Voltage (V)

Offs

et V

olta

ge (μ

V)

-40℃

+25℃ +85℃

VS = 5V

Propagation Delay vs. Input Common Mode Voltage Propagation Delay vs. Input Common Mode Voltage

0

10

20

30

40

50

0 0.3 0.6 0.9 1.2 1.5 Input Common Mode Voltage (V)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 1.4VVOD = 20mV

+25℃ -40℃

+85℃

0

10

20

30

40

50

60

0 0.5 1 1.5 2 2.5 Input Common Mode Voltage (V)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 2.5VVOD = 20mV

+25℃

-40℃

+85℃



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Propagation Delay vs. Input Common Mode Voltage Propagation Delay vs. Input Common Mode Voltage

0

20

40

60

80

100

0 1 2 3 4 5 Input Common Mode Voltage (V)

Prop

agat

ion

Del

ay L

-H (μ

s)

VS = 5VVOD = 20mV

+25℃

-40℃+85℃

0

5

10

15

20

25

0 1 2 3 4 5 Input Common Mode Voltage (V)

Prop

agat

ion

Del

ay H

-L (μ

s)

VS = 5VVOD = 20mV

+25℃

-40℃

+85℃


0

5

10

15

20

25

30

35

1 10 100 1000Overdrive (mV)

Prop

agat

ion

Del

ay (µ

s)

VS = 1.4VVCM = VS/2

L-H

H-L

0

10

20

30

40

50

60

1 10 100 1000Overdrive (mV)

Prop

agat

ion

Del

ay (µ

s)

VS = 5VVCM = VS/2

L-H

H-L

Propagation Delay vs. Resistive Load Propagation Delay vs. Resistive Load

0

2

4

6

8

10

12

14

16

18

1 10 100 1000 10000Resistive Load (kΩ)

Prop

agat

ion

Del

ay (µ

s)

VS = 1.4V

H-L

L-H

0

5

10

15

20

25

30

35

40

1 10 100 1000 10000Resistive Load (kΩ)

Prop

agat

ion

Del

ay (µ

s)

VS = 5V

H-L

L-H



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APPLICATION CIRCUIT

INB- VOUTB

INB+

INA- VOUTA

CIN+

CIN-

COUT

-VS

+VS

10kΩ

1MΩ1nF

PIR Signal Input

2.2MΩ

15nF

10μF

47kΩ

10μF

47kΩ

750kΩ

2.2MΩ

15nF

1MΩ VCC = 3.3V

1MΩ0.1μF

INA+

Output1kΩ

VCC = 3.3V

VCC = 3.3V750kΩ 750kΩ

0.1μF

SGM8140

1

2

11

3 13 12

14

5

8

64, 9, 16

Figure 1. Application Circuit for PIR Sensor

REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (NOVEMBER 2015) to REV.A Page

Changed from product preview to production data ............................................................................................................................................. All

PACKAGE INFORMATION

TX00084.000 SG Micro Corp www.sg-micro.com

PACKAGE OUTLINE DIMENSIONS TQFN-4×4-16L

Symbol Dimensions

In Millimeters Dimensions

In Inches MIN MAX MIN MAX

A 0.700 0.800 0.028 0.031 A1 0.000 0.050 0.000 0.002 A2 0.203 REF 0.008 REF D 3.900 4.100 0.154 0.161

D1 2.000 2.200 0.079 0.087 E 3.900 4.100 0.154 0.161

E1 2.000 2.200 0.079 0.087 k 0.200 MIN 0.008 MIN b 0.250 0.350 0.010 0.014 e 0.650 TYP 0.026 TYP L 0.450 0.650 0.018 0.026

RECOMMENDED LAND PATTERN (Unit: mm)

N9

k

E1

e

E

N16N5

N1

D

D1L

b

A1A2

A

SIDE VIEW

BOTTOM VIEWTOP VIEW

0.3 0.65

2.1 2.9 4.6

0.85

2.1

PACKAGE INFORMATION

TX10000.000 SG Micro Corp

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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 TQFN-4×4-16L 13″ 12.4 4.30 4.30 1.10 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

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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

sgm8140 low power, vibration sensor and pir sensor analog

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