AD7321
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AD7321

500 kSPS, 2-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 3
1ku List Price Starting From $3.68
Features
  • 12-bit plus sign SAR ADC
  • True bipolar input ranges
  • Software-selectable input ranges:
    ±10 V, ±5 V, ±2.5 V, 0 V to +10 V
  • 2 analog input channels with channel sequencer
  • Single-ended, true differential, and pseudo differential analog input capability
  • 500 kSPS throughput rate
  • High analog input impedance
  • Low power: 18 mW
  • Full power signal bandwidth: 22 MHz
  • Internal 2.5 V reference
  • High speed serial interface
  • See data sheet for additional features
Additional Details
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The AD7321 is a 2-channel, 12-bit plus sign successive approximation ADC designed on the iCMOS (industrial CMOS) process. 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, dramatically reduced power consumption, and reduced package size.

The AD7321 can accept true bipolar analog input signals. The AD7321 has four software-selectable input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. Each analog input channel is independently programmed to one of the four input ranges. The analog input channels on the AD7321 are programmed to be single-ended, true differential, or pseudo differential.

The ADC contains a 2.5 V internal reference. The AD7321 also allows for external reference operation. If a 3 V reference is applied to the REFIN/OUT pin, the AD7321 can accept a true bipolar ±12 V analog input. A minimum of ±12 V VDD and VSS supplies are required for the ±12 V input range. The ADC has a high speed serial interface that can operate at throughput rates up to 500 kSPS.

PRODUCT HIGHLIGHTS

  1. The AD7321 can accept true bipolar analog input signals, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V unipolar signals.
  2. The two analog inputs are configured as two single-ended inputs, one true differential input pair, or one pseudo differential input.
  3. A 500 kSPS serial interface. SPI®-/QSPI-/DSP-/MICROWIRE-compatible interface.
  4. Low power, 18 mW, at a maximum throughput rate of 500 kSPS.
  5. Channel sequencer.
Part Models 3
1ku List Price Starting From $3.68

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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AD7321BRUZ-REEL
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Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

Amkor Philippines as an Alternate Site for TSSOP_4.4

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Sep 16, 2014

- 14_0174

AD7321, AD7322, AD7323, AD7324, AD7327, AD7328, AD7329 Die Revision

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Jan 13, 2014

- 13_0168

Update of AD7321/2/3/4/7/8/9 Datasheets for Clarification of Available Register Map

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Jan 20, 2012

- 11_0218

Halogen Free Material Change for Certain TSSOP Products at Carsem

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Oct 13, 2009

- 09_0215

AD7329,AD7328,AD7327,AD7324,AD7323,AD7322,AD7321 Data sheet specification change

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Oct 13, 2008

- 06_0084

Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland.

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

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Amkor Philippines as an Alternate Site for TSSOP_4.4

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Sep 16, 2014

- 14_0174

arrow down

AD7321, AD7322, AD7323, AD7324, AD7327, AD7328, AD7329 Die Revision

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Jan 13, 2014

- 13_0168

arrow down

Update of AD7321/2/3/4/7/8/9 Datasheets for Clarification of Available Register Map

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Jan 20, 2012

- 11_0218

arrow down

Halogen Free Material Change for Certain TSSOP Products at Carsem

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Oct 13, 2009

- 09_0215

arrow down

AD7329,AD7328,AD7327,AD7324,AD7323,AD7322,AD7321 Data sheet specification change

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Oct 13, 2008

- 06_0084

arrow down

Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland.

AD7321BRUZ

PRODUCTION

AD7321BRUZ-REEL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 2

EVAL-AD7321

AD7321 Evaluation Board

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EVAL-AD7321

AD7321 Evaluation Board

AD7321 Evaluation Board

Product Detail

Not recommended for new designs.  For new designs, please see the EVAL-AD7327.


The EVAL-AD7321CBZ is a fully featured evaluation kit for the AD7321. This board operates in stand alone mode or in conjunction with the Evaluation Controller board . When operated with the Evaluation Controller board, 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 Evaluation Controller board.

EVAL-AD7327

AD7327 Evaluation Board

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EVAL-AD7327

AD7327 Evaluation Board

AD7327 Evaluation Board

Product Detail

The EVAL-AD7327SDZ is a fully featured evaluation kit for the AD7327. 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.

Tools & Simulations

Tools & Simulations 1

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