AD7322
Software Selectable True Bipolar Input, 2-Channel, 12-Bit Plus Sign ADC
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- 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 - 1 MSPS throughput rate
- Two analog input channels with channel sequencer
- Single-ended, true differential, and pseudo differential analog input capability
- High analog input impedance
- Low power: 21 mW
- Full power signal bandwidth: 22 MHz
- Internal 2.5 V reference
- High speed serial interface
- Power-down modes
- 14-lead TSSOP package
- iCMOS process technology
The AD7322 is a 2-channel, 12-bit plus sign, successive approximation analog-to-digital converter (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 AD7322 can accept true bipolar analog input signals. The AD7322 has four software-selectable input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. Each analog input channel can be independently programmed to one of the four input ranges. The analog input channels on the AD7322 can be programmed to be single-ended, true differential, or pseudo differential.
The ADC contains a 2.5 V internal reference. The AD7322 also allows for external reference operation. If a 3 V reference is applied to the REFIN/OUT pin, the AD7322 can accept a true bipolar ±12 V analog input. Minimum ±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 1 MSPS.
PRODUCT HIGHLIGHTS
- The AD7322 can accept true bipolar analog input signals, ±10 V, ±5 V, and ±2.5 V, and 0 V to +10 V unipolar signals.
- The two analog inputs can be configured as two single-ended inputs, one true differential input, or one pseudo differential input.
- 1 MSPS serial interface. SPI-/QSPI™-/DSP-/MICROWIRE™-compatible interface.
- Low power, 31 mW maximum, at 1 MSPS throughput rate.
- Channel sequencer.
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AD7322
Documentation
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Evaluation Design File 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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AD7322BRUZ | 14-Lead TSSOP |
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AD7322BRUZ-REEL7 | 14-Lead TSSOP |
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- AD7322BRUZ
- Pin/Package Drawing
- 14-Lead TSSOP
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
- AD7322BRUZ-REEL7
- Pin/Package Drawing
- 14-Lead TSSOP
- Documentation
- HTML Material Declaration
- HTML Reliablity Data
- CAD Symbols, Footprints, and 3D Models
- Ultra Librarian
- SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Apr 5, 2021
- 21_0035
Amkor Philippines as an Alternate Site for TSSOP_4.4
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Sep 16, 2014
- 14_0174
AD7321, AD7322, AD7323, AD7324, AD7327, AD7328, AD7329 Die Revision
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Jan 13, 2014
- 13_0168
Update of AD7321/2/3/4/7/8/9 Datasheets for Clarification of Available Register Map
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Jan 20, 2012
- 11_0218
Halogen Free Material Change for Certain TSSOP Products at Carsem
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Oct 13, 2009
- 09_0215
AD7329,AD7328,AD7327,AD7324,AD7323,AD7322,AD7321 Data sheet specification change
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Oct 13, 2008
- 06_0084
Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland.
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Apr 5, 2021
- 21_0035
Amkor Philippines as an Alternate Site for TSSOP_4.4
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Sep 16, 2014
- 14_0174
AD7321, AD7322, AD7323, AD7324, AD7327, AD7328, AD7329 Die Revision
Jan 13, 2014
- 13_0168
Update of AD7321/2/3/4/7/8/9 Datasheets for Clarification of Available Register Map
Jan 20, 2012
- 11_0218
Halogen Free Material Change for Certain TSSOP Products at Carsem
AD7322BRUZ
PRODUCTION
AD7322BRUZ-REEL7
PRODUCTION
Oct 13, 2009
- 09_0215
AD7329,AD7328,AD7327,AD7324,AD7323,AD7322,AD7321 Data sheet specification change
Oct 13, 2008
- 06_0084
Qualification of the 8" H Wafer Fab process at Analog Devices, Limerick, Ireland.
Software & Part Ecosystem
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Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp |
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Low Input Bias Current Op Amps (≤100 pA)3 |
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36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
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Precision, Low Input Bias Current, Wide BW JFET Single Op Amp |
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Low Input Bias Current, Wide BW JFET Precision Dual Op Amp |
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Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)5 |
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PRODUCTION |
Ultralow Distortion, Ultralow Noise Op Amp (single) |
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PRODUCTION |
Ultralow Distortion, Ultralow Noise Op Amp (Dual) |
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PRODUCTION |
Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
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PRODUCTION |
Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
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PRODUCTION |
Low Noise, High Speed Amplifier for 16-Bit Systems |
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Series Voltage References4 |
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PRODUCTION |
3.0V Precision Micropower, Low Dropout, Low Voltage Reference |
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PRODUCTION |
2.5V Micropower, Precisions Series Mode Voltage References |
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PRODUCTION |
Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
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PRODUCTION |
2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown |
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Shunt Voltage References1 |
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PRODUCTION |
2.5 V/3.0 V High Precision Reference |
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Single-Ended to Differential Amplifiers2 |
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RECOMMENDED FOR NEW DESIGNS |
Low Power Differential ADC Driver |
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PRODUCTION |
Low Cost, Low Power Differential ADC Driver |
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EVAL-AD7328
AD7328 Evaluation Board
Product Detail
The EVAL-AD7328SDZ is a fully featured evaluation kit for the AD7328. 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.
Resources
EVAL-AD7322
AD7322 Evaluation Board
Product Detail
Not recommended for new designs. For new designs, please see the EVAL-AD7328.
The EVAL-AD7322CBZ is a fully featured evaluation kit for the AD7322. 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.
Resources