The World Leader in High-Performance Signal Processing Solutions

ADC

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Worldwide Data Convertersmarket share

Source: Databeans Mar 2003

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Precision Data ConvertersRECENT TECHNOLOGY LEADERSHIPYear Product Description

1997 AD7730 Worlds first integrated load cell converter

1998 AD5320 Worlds first DAC in SOT-23 package

1998 AD7723 Worlds first 1Msps

1999 ADuC812Worlds first MicroConverter ®

1999 AD7472 Worlds first 1Msps SAR ADC

2000 AD7476 Worlds first SOT-23 ADC

2000 AD5532 Worlds first 32-channel DAC

2001 ADuC824 Worlds first sensor signal conditioning chip

2001 AD7671 Worlds first 1Msps 16-bit SAR ADC

2002 AD7677 Worlds first 16-bit SAR ADC with ±1LSB accuracy

2002 AD5379 Worlds first 40-channel DAC

2002 AD7476A Worlds first ADC in SC-70 package

2003 AD7725 Worlds first with post processing engine

2003 AD7674 Worlds fastest 18-bit ADC

2003 AD7680 Worlds smallest 16-bit ADC – SOT23 package

2003 AD7790 Worlds lowest power/noise 24-bit

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Multi-Channel Parallel

Multi-Channel Serial

High Accuracy

High-Speed

Differential & Pseudo

Differential

1.8 V PowerSupply

Bipolar Inputs

Multi-Channel

I2C Interface

Single Channel Low Power

Simultaneous Sampling

Analog Devices Analog Devices World Leader in ADCsWorld Leader in ADCs Fastest Data Rates Smallest Packages

Lowest Power

Analog Devices Analog Devices World Leader in ADCsWorld Leader in ADCs Fastest Data Rates Smallest Packages

Lowest Power

PPrecision Converters: recision Converters: 8-Bit to 18-Bit to 188-Bit ADCs -Bit ADCs Data Rates up to 3 MSPSData Rates up to 3 MSPS

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Developing Cores for Key Markets

High AccuracyHigh Accuracy Low Voltage Single Supply Cores

Low Voltage Single Supply CoresBi Polar CoresBi Polar CoresFast Throughput

No pipeline delay

Fast ThroughputNo pipeline delay

PRECISION ADCPRECISION ADC

IndustrialIndustrial PortablePortable System Monitoring

System MonitoringCommsCommsInstruInstru MedicalMedical

Key Target Market Segments

AD7674AD7685AD7725

AD7484AD7266

AD7890AD7894

AD7476AAD7680AD7466

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AD7674 – 800ksps 18-bit

Fastest 18-bit ADC available 18-bit NMC (±1 DNL) specified at 800ksps ±2.5 LSB INL specified at 800ksps

AC performance – best in class -115dB THD 100dB SNR

On-chip reference buffer Allows greater flexibility in reference selection

On-chip signal conditioning Fully Differential i/p’s, ±5V, with +5V VDD

Flexible Parallel and Serial interface 18-,16-, 8- Parallel

48-pin LQFP or CSP package

As per AD7674 except 570ksps throughput

AD7679 As per AD7674 except

100ksps throughput

AD7678

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AD7725 16-Bit, - ADC with Post Processor On-chip post processor

130 million accumulates (MAC) per second Design FIR, IIR or linearisation Programmable filtering configurable up to 108 tap Complete control over filter response, filter coefficients

and decimation rate

5th order - Modulator Sample at frequencies up to 14.4MHz Programmable decimation and output word rate

On-chip 2.5V reference User programmable signal conditioning

Bipolar or Unipolar i/p’s Differential or single ended

Full Filter Simulation kit available “Filter Wizard” allows design of different types of

filters and generates configuration file for download to part.

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AD7725 Tools

AD7725 Evaluation Board – Rev E Accompanied by Evaluation Software – Version 2.2

This software enables the analysis of the conversion data by displaying FFTs or histogram of codes

Eval-Control Board Used to interface the Evaluation Board to a PC

FilterWizard Used to design filters

The configuration files generated can be loaded to the AD7725 directly, using the AD7725 Evaluation Software

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AD7685/86 Features

16-Bits Resolution 16-Bits No Missing Codes 2.7V to 5V Operation INL= +/-3LSB AD7685= 250kSPS, AD7686= 550kSPS Power Dissipation

Peak Sampling Rate AD7685= 25mW AD7686= 42mW

0 to VREF Input Range 92dB SINAD @20kHz SPI/QSPI/uWIRE/DSP Compatible 10-Lead MSOP Release Date: December 2003 1k Price: AD7685= $8.00, AD7686= $12.00

SamplesAvailable Now

SamplesAvailable Now

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16-bit ADC PortfolioPart # T’put Input Vin INL Power Ref I/F Package Comment

  Ksps     max LSB typ mW        

AD7660 100 Uni 0 to 2.5V 3 21 Ext Ser/Par QFP,CSP 48  

AD7661 100 Uni 0 to 2.5V 3 17 Int / Ext Ser/Par QFP,CSP 48 27mW with ref

AD7680 100 Uni 0 to VDD 4 4.5 Ext Ser 6-SOT23  

AD7651 100 Uni 0 to 2.5V 6 17 Int / Ext Ser/Par QFP,CSP 48 27mW with ref

AD7666 500 Uni 0 to 2.5V 2.5 76 Int / Ext Ser/Par QFP,CSP 48 86mW with ref

AD7652 500 Uni 0 to 2.5V 6 76 Int / Ext Ser/Par QFP,CSP 48 86mW with ref

AD7664 570 Uni 0 to 2.5V 2.5 97 Ext Ser/Par QFP,CSP 48  

AD7650 570 Uni 0 to 2.5V 6 97 Ext Ser/Par QFP,CSP 48  

AD7667 1000 Uni 0 to 2.5V 2.5 112 Int / Ext Ser/Par QFP,CSP 48 122mW with ref

AD7653 1000 Uni 0 to 2.5V 6 112 Int / Ext Ser/Par QFP,CSP 48 122mW with ref

AD7663 250 Uni/Bip ±10,±5,±2.5V, 0 to 10,5,2.5V

3 35 Ext Ser/Par QFP,CSP 48  

AD7665 570 Uni/Bip ±10,±5,±2.5V, 0 to 10,5,2.5V

2.5 93 Ext Ser/Par QFP,CSP 48 64mW@444ksps

AD7671 1000 Uni/Bip ±10,±5,±2.5V, 0 to 10,5,2.5V

2.5 112 Ext Ser/Par QFP,CSP 48 84mW@666ksps

AD7675 100 Diff ±2.5V 1.5 17 Ext Ser/Par QFP 48  

AD7676 500 Diff ±2.5V 1 76 Ext Ser/Par QFP 48  

AD7677 1000 Diff ±2.5V 1 115 Ext Ser/Par QFP 48 87mW@666ksps

AD7668 500 2by2 simul 0 to 5V 2.5 110 Int / Ext Ser/Par QFP,CSP 48 120mW with ref

AD7662 500 2by2 simul 0 to 5V 6 110 Int / Ext Ser/Par QFP,CSP 48 120mW with ref

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AD7484 14-bit 3Msps ADC

Fastest 14-bit SAR ADC available SAR architecutre means no pipeline delays ±0.3 LSB INL, ±0.3 LSB DNL @ 14-bits

Overrange Mode ±8% full scale overrange mode (15th bit)

On-chip 2.5V reference Offset shift capability

0V to 2.5V i/p range which can be shifted by ±200mV

VDRIVE pin Allows interfacing to low voltage processors

Power Down Options 5mW nap mode, 2.5uW standby mode, 60mW full

operation Wide input bandwidth

Low noise T/H accepts frequencies >40MHz

As per AD7484 except Serial interface Specified at 2Msps throughput

AD7485 As per AD7484 except

12-bit resolution

AD7482

INL Plot

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Bipolar ADC Portfolio Product Selector

Generic Resolution Throughput Power

AD7893 12-Bits 117 ksps 25 mW

AD7895 12-Bits 200 ksps 16 mW

AD7894 14-Bits 200 ksps 20 mW

Generic Res’nThroughput Power

AD7898 12-Bits 220 ksps22.5 mW

Generic Resolution Throughput Power

AD7890 12-Bits 100 ksps 30 mW

SerialParallel

Parallel

Serial

Single Channel

Sin

gle

C

han

nel

3 V

Inte

rfac

e

Eight Channel

SingleChannel

Eight Channel

Single Channel

Generic Resolution Thru’put Power

AD7892 12-Bits 600 ksps 60 mW

Generic Res’n Thru’put Power

AD7891 12-Bits 500 ksps 82 mW

Generic Resolution Throughput Power

AD7899 14-Bits 400 ksps 80 mW

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ADCs with Bipolar InputsAD789x SeriesNo Need to Offset the Input Voltage for Bipolar Signals

AD789x series have true bipolar inputs ranges from 2.5 V to 10 V Better offset and gain system specs without ext offsetting resistors

More Robust Input Circuitry Input series resistors 17 V Absolute maximum ratings

Higher Chip Integration – Ease of Use Choice of serial, parallel, single-channel or multi-channel ADCs On-chip resistors gives more flexible input range selection 2.5 V on-chip reference, ext reference is optional

Pin Compatible Upgrade to 14-Bits AD7895 – 12-Bits AD7894 – 14-Bits

ReleasedReleased

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ADC 8-bit to 12-bit

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AD7476A – 1Msps SC70

Smallest ADC available SC70 package is 50% smaller than closest competitor TI&LTC smallest package is MSOP, Maxim is SOT23

Flexible Throughput/Power Management System

Power down capability without pin re-configuration (patent protection)

0.9mW at 100ksps, 3.6mW at 1Msps 20MHz serial interface

SPI, QSPI, MICROWIRE, DSP Compatible On-chip reference

Derived from the power supply Unipolar analog i/p

Ain 0V to VDD

As per AD7476A except 10-bit resolution

AD7477A

As per AD7476A except 8-bit resolution

AD7478A

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AD7450A – Differential 1Msps

Fastest Fully Differential 12-bit ADC available Both analog i/ps extend to the rails Full scale i/p is 2 * Vref

Fully differential or Pseudo Differential options

SOT-23 package Uses 40% less board area than closest competitor

Variable voltage Vref i/p Fully functional with reference of 100mV

Wide bandwidth differential track and hold 3dB point of 20MHz

Flexible Throughput/Power Management System

0.9mW at 100ksps, 3.6mW at 1Msps Power down capability without pin re-

configuration (patent protection)

As per AD7450A except 10-bit resolution

AD7440

As per AD7450A except Pseudo differential

inputs

AD7451 As per AD7440 except

Pseudo differential inputs

AD7441

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AD7680 – World’s Smallest 16-bit ADC

Small Package but still offers high performance

15-Bits No Missing Codes INL of ±4 LSB 100kSPS Sampling Rate

Reduce board area and power, Ideal for Handheld Equipment

3mW typ at 100kSPS 2.7V Supply Powerdown Mode: 0.5uA

Specified for AC performance 85dB SINAD @10kHz

Choice of serial interface SPI/QSPI/uWIRE/DSP Compatible

Samples available now Full production release Aug’03 1k Price: $6.00

Availability & Price As per AD7680 except

14-bits resolution

AD7940

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World’s Lowest Power ADCs AD7466: 12-Bits, AD7467: 10-Bits, AD7468: 8-Bits

Lowest Power: 1 mW max @ 100kSPS with 3 V Supplies 0.6 mW max @ 100kSPS with 1.8 V Supplies

Low Voltage Supply: 1.8 V to 3.3 V

Small Package: 6-Pin SOT-23 Package

SPI/QSPI/DSP Compatible Interface Throughput Rate:

200kSPS(B) Standby Mode:

1µA max Wide Input Bandwidth:

500 kHz typ No Pipeline Delays

1.8 V Low Power1.8 V Low Power

AD74AD7466x ADC x ADC FamilyFamily

6-Lead SOT-23 Package6-Lead SOT-23 Package

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AD7928: 1Msps Serial Mu’xed ADC

Mutiplex more signals faster 8-channel single-ended multiplexer 1Msps throughput

Multiplex and convert high frequency signals With the 1Msps throughput and fullpower input

bandwidth of 8MHz Full AC specification

Predetermine the sampling of the signals On-chip sequences allows a sequence of channels to

be selected Serial Interface reduced board routing

SPI/QSPI/DSP compatible Increase throughput while reducing power

consumption 6 mW max at 1 Msps, 3 V Supply Flexible Power Management over the Serial Interface

As per AD7928 except AD7918: 10-bit resolutionAD7908: 8-bit resolution

AD7918/AD7908 4-channel Multiplexer AD7924: 12-bit resolution AD7914: 10-bit resolution AD7904: 8-bit resolution

AD7904, AD7914, AD7924

AC Performance

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AD793x – Worlds Fastest, Multiplexed, SAR Converters Throughput rate up to 1.5Msps Multi-Channel Inputs Parallel Interface Accurate On-Chip 2.5V

Reference 4/8 Analog Inputs with a

Channel Sequencer Low Power

• 8mW Max at 1.5Msps 3V or 5V Power Supply

12 & 10 Bit, Parallel ADCs with a Sequencer AD793x

Multi- Channel Inputs

Reference

Control Logic

Sequencer

T/

H 10-, 12-Bit1.5 Msps ADC

Data

Parallel Interface

AD793x Block Diagram