AD7657-1
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AD7657-1

250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar 14-Bit ADC

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $12.48
Features
  • Pin and software compatible with AD7656/AD7657/AD7658 featuring reduced decoupling requirements
  • 6 independent ADCs
  • True bipolar analog inputs
  • Pin-/software-selectable ranges: ±10 V, ±5 V
  • Fast throughput rate: 250 kSPS
  • iCMOS process technology
  • Low power
    140 mW at 250 kSPS with 5 V supplies
  • See Data Sheet for Additional Information


Additional Details
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The AD7656-1/AD7657-1/AD7658-1 are reduced decoupling pin- and software-compatible versions of AD7656/AD7657/AD7658. The AD7656-1/AD7657-1/AD7658-1 devices contain six 16-/14-/12-bit, fast, low power successive approximation ADCs in a package designed on the iCMOS® process (industrial CMOS). iCMOS is a process combining high voltage silicon with submicron CMOS  and complementary bipolar technologies. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, which dramatically reduces power consumption and package size.

The AD7656-1/AD7657-1/AD7658-1 feature throughput rates of up to 250 kSPS. The parts contain low noise, wide bandwidth track-and-hold amplifiers that can handle input frequencies up to 4.5 MHz.

The conversion process and data acquisition are controlled using the CONVST signals and an internal oscillator. Three CONVST pins (CONVST A, CONVST B, and CONVST C) allow independent, simultaneous sampling of the three ADC pairs. The AD7656-1/AD7657-1/AD7658-1 have a high speed parallel and serial interface, allowing the devices to interface with microprocessors or DSPs. When the serial interface is selected, each part has a daisy-chain feature that allows multiple ADCs to connect to a single serial interface. The AD7656-1/AD7657-1/AD7658-1 can accommodate true bipolar input signals in the ±4 × VREF and ±2 × VREF ranges. Each AD7656-1/AD7657-1/AD7658-1 also contains an on-chip 2.5 V reference.

Product Highlights

  1. Six 16-/14-/12-bit, 250 kSPS ADCs on board.
  2. Six true bipolar, high impedance analog inputs.
  3. High speed parallel and serial interfaces.
  4. Reduced decoupling requirements and reduced bill of materials cost compared with the AD7656/AD7657/ AD7658 devices.

Applications

  • Power line monitoring and measuring systems
  • Instrumentation and control systems
  • Multiaxis positioning systems
Part Models 4
1ku List Price Starting From $12.48

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7657BSTZ-1
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AD7657BSTZ-1-RL
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AD7657YSTZ-1
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AD7657YSTZ-1-RL
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Product Lifecycle

PCN

Oct 18, 2016

- 16_0034

Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin

AD7657BSTZ-1

PRODUCTION

AD7657BSTZ-1-RL

PRODUCTION

AD7657YSTZ-1

PRODUCTION

AD7657YSTZ-1-RL

PRODUCTION

Jun 9, 2010

- 10_0147

AD7656, AD7656-1, AD7657-1, AD7658-1 Datasheet FSR definition clarification

AD7657BSTZ-1

PRODUCTION

AD7657BSTZ-1-RL

PRODUCTION

AD7657YSTZ-1

PRODUCTION

AD7657YSTZ-1-RL

PRODUCTION

Jan 5, 2009

- 07_0077

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 18, 2016

- 16_0034

arrow down

Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin

AD7657BSTZ-1

PRODUCTION

AD7657BSTZ-1-RL

PRODUCTION

AD7657YSTZ-1

PRODUCTION

AD7657YSTZ-1-RL

PRODUCTION

Jun 9, 2010

- 10_0147

arrow down

AD7656, AD7656-1, AD7657-1, AD7658-1 Datasheet FSR definition clarification

AD7657BSTZ-1

PRODUCTION

AD7657BSTZ-1-RL

PRODUCTION

AD7657YSTZ-1

PRODUCTION

AD7657YSTZ-1-RL

PRODUCTION

Jan 5, 2009

- 07_0077

arrow down

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

EVAL-AD7657-1

AD7657-1 Evaluation Kit

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EVAL-AD7657-1

AD7657-1 Evaluation Kit

AD7657-1 Evaluation Kit

Product Detail

The EVAL-AD7657-1SDZ is a fully featured evaluation kit for the AD7657-1. This board operates in standalone mode or in conjunction with the System Development Platform, EVAL-SDP-CB1Z . When operated with the System Development Platform software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the System Development Platform . When operated in standalone mode the ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins.

The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CB1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.

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