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AD7264:  True Differential, Dual, 1 MSPS, 14-Bit, 2-Channel SAR ADC With PGA

Product Details


The AD7264 is a dual, 14-bit, high speed, low power, successive approximation ADC that operates from a single 5 V power supply and features throughput rates of up to 1 MSPS per on-chip ADC (500 kSPS for the AD7264-5). Two complete ADC func-tions 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 AD7264 contains four comparators. Comparator A and Comparator B are optimized for low power, whereas Comparator C and Comparator D have fast propagation delays. The AD7264 features 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 AD7264 has an on-chip 2.5 V reference that can be disabled if an external reference is preferred. The AD7264 is available in 48-lead LFCSP and LQFP packages.

The AD7264 is ideally suited for monitoring small amplitude signals from a variety of sensors. The parts 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 (500 kSPS for the AD7264-5). The conversion result of both ADCs is simultaneously available on separate data lines or in succession 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, 14-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 AD7264
    500 kSPS for AD7264-5
  • Analog input impedance: >1 GΩ
  • Wide input bandwidth
    −3 dB bandwidth: 1.7 MHz at gain = 2
  • 4 on-chip comparators
  • See Data Sheet for Additional Information

Functional Block Diagram for AD7264

Evaluation Kits & Symbols & Footprints

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

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Price, packaging, availability

AD7264 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7264BCPZ Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Tray, 260 $7.74 $6.58 Y  Material Info Notify Me Purchase Sample
AD7264BCPZ-5 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Tray, 260 $6.00 $5.10 Y  Material Info Notify Me Purchase
AD7264BCPZ-5-RL7 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Reel, 750 $6.00 $5.10 Y  Material Info Notify Me Purchase
AD7264BCPZ-RL7 Status: Production 48 ld LFCSP 7x7mm (5.25EP) 48 Ind Reel, 750 $7.74 $6.58 Y  Material Info Notify Me Purchase
AD7264BSTZ Status: Production 48 ld LQFP 48 Ind Tray, 250 $7.65 $6.50 Y  Material Info PCN Purchase Sample
AD7264BSTZ-5 Status: Production 48 ld LQFP 48 Ind Tray, 250 $6.00 $5.10 Y  Material Info PCN Purchase Sample
AD7264BSTZ-5-RL7 Status: Production 48 ld LQFP 48 Ind Reel, 500 $6.00 $5.10 Y  Material Info PCN Purchase
AD7264BSTZ-RL7 Status: Production 48 ld LQFP 48 Ind Reel, 500 $7.65 $6.50 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.

AD7264 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7264EDZ 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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