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AD7262:  1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators

Product Details


The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.

The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Compara-tor C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred.

The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.

Product Highlights

  1. Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals.
  2. Each PGA is followed by a dual simultaneous sampling ADC, featuring throughput rates of 1 MSPS per ADC for the AD7262. The conversion results of both ADCs are simultaneously available on separate data lines or in succes-sion on one data line if only one serial port is available.
  3. Four integrated comparators that can be used to count signals from pole sensors in motor control applications.
  4. Internal 2.5 V reference.

FEATURES and BENEFITS

  • Dual simultaneous sampling 12-bit, 2-channel ADC
  • True differential analog inputs
  • Programmable gain stage:
    ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128
  • Throughput rate per ADC
    1 MSPS for AD7262
    500 kSPS for AD7262-5
  • Analog input impedance: >1 GΩ
  • Wide input bandwidth
    −3 dB bandwidth: 1.7 MHz at gain = 2
  • 4 on-chip comparators
  • Please see data sheet for additional features

Functional Block Diagram for AD7262

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Design Tools,Models,Drivers & Software

Title Content Type File Type
CED1Z FPGA Project for AD7262 with Nios driver (Wiki Site) 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.

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Price, packaging, availability

AD7262 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7262BCPZ Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Tray, 260 $6.47 $5.50 Y  Material Info Notify Me Purchase Sample
AD7262BCPZ-5 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Tray, 260 $4.82 $4.10 Y  Material Info Notify Me Purchase
AD7262BCPZ-5-RL7 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Reel, 750 $4.82 $4.10 Y  Material Info Notify Me Purchase
AD7262BCPZ-RL7 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Reel, 750 $6.47 $5.50 Y  Material Info Notify Me Purchase
AD7262BSTZ Status: Production 48 ld LQFP 48 Ind Tray, 250 $6.47 $5.50 Y  Material Info PCN Purchase Sample
AD7262BSTZ-5 Status: Production 48 ld LQFP 48 Ind Tray, 250 $4.82 $4.10 Y  Material Info PCN Purchase
AD7262BSTZ-5-RL7 Status: Production 48 ld LQFP 48 Ind Reel, 500 $4.82 $4.10 Y  Material Info PCN Purchase
AD7262BSTZ-RL7 Status: Production 48 ld LQFP 48 Ind Reel, 500 $6.47 $5.50 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.

AD7262 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7262EDZ 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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