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AD7327:  500 kSPS, 8-Channel, Software Selectable True bipolar Input, 12-Bit Plus Sign A/D Converter

Product Details


The AD73271 is an 8-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 AD7327 can accept true bipolar Analog Input signals. The AD7327 has four software selectable inputs Ranges, ±10 V, ±5 V, ±2.5 V and 0 to 10 V. Each analog input channel can be independently programmed to one of the four input ranges. The Analog input channels on the AD7327 can be programmed to be Single-Ended, true Differential or Pseudo Differential.

The ADC contains a 2.5 V Internal reference. The AD7327 also allows for external Reference operation. If a 3 V reference is applied the REFIN/OUT pin the AD7327 can accept a true Bipolar ±12V Analog Input. VDD and VSS supplies of ±12V 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 AD7327 can accept True Bipolar Analog Input signals, ±10 V, ±5 V, ±2.5 V and 0 to 10 V unipolar signals.
  2. The Eight Analog Inputs can be configured as 8 Single-Ended inputs, 4 True Differential, 4 Pseudo Differential or 7 Pseudo Differential Inputs.
  3. The ADC has a high speed serial interface that can operate at throughput rates up to 500 kSPS.
  4. Low power, 18 mW, at a maximum throughput rate of 500 kSPS.
  5. Channel Sequencer.

FEATURES and BENEFITS

  • 12-Bit plus Sign SAR ADC
  • True Bipolar Input Ranges
  • Software Selectable Input Ranges:
    ± 10 V, ± 5 V, ± 2.5 V, 0 to 10 V
  • Eight 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
  • Internal 2.5 V Reference
  • High Speed Serial Interface – SPI/QSPI/DSP/MICROWIRE Compatible
  • 20-Lead TSSOP package
  • iCMOS™ Process Technology

Functional Block Diagram for AD7327

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Design Tools,Models,Drivers & Software

Title Content Type File Type
BeMicro FPGA Project for AD7327 with Nios driver FPGA HDL HTML
AD7327 FMC-SDP Interposer & Evaluation Board / Xilinx KC705 Reference Design Device Drivers HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products


Recommended Input Buffer Amplifiers for the AD7327

  • For low noise and low frequency at high supply voltages( up to +-18V), we suggest the AD8597, ADA4627-1 or the dual AD8599.
  • For low noise and low frequency applications at medium supply voltages( up to +-13V), we suggest the AD8610 or the dual AD8620.

Recommended External References for the AD7327

  • For a precision 3.0V reference, we recommend AD780 or the REF193.
Recommended Voltage Regulators for the AD7327
  • For low dropout regulators with inputs up to 5V, we recommend the low noise ADP151 or the low power ADP160.
  • For high current switching regulators with inputs up to 5V, we recommend the low noise ADP2114.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD7327 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7327BRUZ Status: Production 20 ld TSSOP 20 Ind Tube, 75 $4.70 $3.99 Y  Material Info PCN Purchase Sample
AD7327BRUZ-REEL Status: Production 20 ld TSSOP 20 Ind Reel, 2500 - $3.99 Y  Material Info PCN Purchase
AD7327BRUZ-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $3.99 Y  Material Info PCN Purchase
AD7327TRU-EP Status: Production TSSOP 4.4 MM 20 Ind Tube, 75 $9.75 $7.99 N  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD7327 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7327SDZ Status: Production Evaluation Board $59.00 Yes -
EVAL-SDP-CB1Z Status: Production Evaluation Controller Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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