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AD7357:  Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC

Product Details


The AD7357 is a dual, 14-bit, high speed, low power, successive approximation ADC that operates from a single 2.5 V power supply and features throughput rates up to 4.25 MSPS. The part contains two ADCs, each preceded by a low noise, wide bandwidth track-and-hold circuit that can handle input frequencies in excess of 110 MHz.

The conversion process and data acquisition use standard control inputs allowing for easy interfacing to microprocessors or DSPs. The input signal is sampled on the falling edge of CS; conversion is also initiated at this point. The conversion time is determined by the SCLK frequency.

The AD7357 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 2.5 V supply and a 4.25 MSPS throughput rate, the part consumes 14 mA typically. The part also offers flexible power/throughput rate management when operating in normal mode as the quiescent current consumption is so low.

The analog input range for the part is the differential common mode +/- Vref/2. The AD7357 has an on-chip 2.048 V reference that can be overdriven when an external reference is preferred.

The AD7357 is available in a 16-lead thin shrink small outline package (TSSOP).

Product Highlights

  1. Two Complete ADC Functions
    These functions allow Simultaneous Sampling and Conversion of Two Channels. The conversion result of both channels is simultaneously available on separate data lines or in succession on one data line if only one serial port is available.
  2. High Throughput with Low Power Consumption. The AD7357 offers a 4.25 MSPS throughput rate with 36 mW power consumption.
  3. Simultaneous Sampling
    The part features two standard successive approximation ADCs with accurate control of the sampling instant via a CS input and once off conversion control.

Applications

  • Automotive radar
  • Data acquisition systems
  • Motion control
  • I and Q demodulation
  • RFID readers

FEATURES and BENEFITS

  • Dual 14-bit SAR ADC
  • Simultaneous Sampling
  • Throughput rate: 4.2 MSPS Per Channel
  • Specified for VDD of 2.5 V
  • Power dissipation: 36 mW at 4.25 MSPS
  • On-chip reference: 2.048 V ± 0.25%, 6 ppm/°C
  • Dual conversion with read
  • High speed serial interface:SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible
  • −40°C to +125°C operation
  • 16-lead TSSOP package
  • Qualified for automotive applications

Functional Block Diagram for AD7357

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.

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Price, packaging, availability

AD7357 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7357BRUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $12.72 $10.81 Y  Material Info PCN Purchase Sample
AD7357BRUZ-500RL7 Status: Production 16 ld TSSOP 16 Ind Reel, 500 $12.72 $10.81 Y  Material Info PCN Purchase
AD7357BRUZ-RL Status: Production 16 ld TSSOP 16 Ind Reel, 2500 - $10.81 Y  Material Info PCN Purchase
AD7357WYRUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $16.24 $13.31 Y  Material Info PCN Purchase
AD7357WYRUZ-RL Status: Production 16 ld TSSOP 16 Ind Reel, 2500 - $13.31 Y  Material Info PCN Purchase
AD7357YRUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $14.62 $12.43 Y  Material Info PCN Purchase
AD7357YRUZ-500RL7 Status: Production 16 ld TSSOP 16 Ind Reel, 500 $14.62 $12.43 Y  Material Info PCN Purchase
AD7357YRUZ-RL Status: Production 16 ld TSSOP 16 Ind Reel, 2500 - $12.43 Y  Material Info PCN 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.

AD7357 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7357EDZ Status: Production Evaluation Board $59.00 Yes -
EVAL-CED1Z Status: Production Evaluation Board $249.00 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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