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AD8476:  Low Power, Unity Gain Fully Differential Amplifier & ADC Driver

Product Details

Product Status:Recommended for New Designs

The AD8476 is a very low power, fully differential precision amplifier with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift, and rail-to-rail outputs for maximum dynamic range.

The AD8476 also provides overvoltage protection from large industrial input voltages up to ±23 V while operating on a dual 5 V supply. Power dissipation on a single 5 V supply is only 1.5 mW.

The AD8476 works well with SAR, Σ-Δ, and pipeline converters. The high current output stage of the part allows it to drive the switched capacitor front-end circuits of many ADCs with minimal error.

Unlike many differential drivers on the market, the AD8476 is a high precision amplifier. With 200 μV maximum output offset, 39 nV/√Hz noise, and −102 dB THD + N at 10 kHz, the AD8476 pairs well with low power, high accuracy converters.

Considering its low power consumption and high precision, the slew-enhanced AD8476 has excellent speed, settling to 16-bit precision for 250 kSPS acquisition times.

The AD8476 is available in a space-saving 8-lead MSOP package. It is fully specified over the −40°C to +125°C temperature range.

APPLICATIONS

  • ADC driver
  • Differential instrumentation amplifier building block
  • Single-ended-to-differential converter
  • Battery powered instruments

FEATURES and BENEFITS

  • Very low power
    - 330 μA supply current
  • Fully differential or single-ended inputs/outputs
  • Differential output designed to drive precision ADCs
    - Drives switched capacitor and
    Σ-Δ ADCs
    - Rail-to-rail output
  • VOCM pin adjusts output common mode
  • Robust overvoltage up to 18 V beyond supplies
  • High performance
    - Suitable for driving 16-bit converter up to 250 kSPS
    - 39 nV/√Hz output noise
    - 1 ppm/°C gain drift
    - 200 μV maximum output offset
    - 10 V/μs slew rate
    - 5 MHz bandwidth
  • Single supply: 3 V to 18 V
  • Dual supplies: ±1.5 V to ±9 V

Functional Block Diagram for AD8476

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8476 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

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

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Price, packaging, availability

AD8476 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8476ACPZ-R7 Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Reel, 1500 $2.39 $1.99 Y  Material Info PCN Purchase Sample
AD8476ACPZ-RL Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Reel, 5000 $2.39 $1.99 Y  Material Info PCN Purchase
AD8476ACPZ-WP Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Tray, 50 $2.39 $1.99 Y  Material Info Notify Me Purchase
AD8476ARMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.39 $1.99 Y  Material Info Notify Me Purchase Sample
AD8476ARMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 $2.39 $1.99 Y  Material Info Notify Me Purchase
AD8476ARMZ-RL Status: Production 8 ld MSOP 8 Ind Reel, 3000 $2.39 $1.99 Y  Material Info Notify Me Purchase
AD8476BCPZ-R7 Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Reel, 1500 $2.97 $2.75 Y  Material Info PCN Purchase Sample
AD8476BCPZ-RL Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Reel, 5000 $2.97 $2.75 Y  Material Info PCN Purchase
AD8476BCPZ-WP Status: Production 16 ld LFCSP (3x3mm, 1.6mm exposed pad) 16 Ind Tray, 50 $2.97 $2.75 Y  Material Info Notify Me Purchase
AD8476BRMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $2.97 $2.75 Y  Material Info Notify Me Purchase Sample
AD8476BRMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 $2.97 $2.75 Y  Material Info Notify Me Purchase
AD8476BRMZ-RL Status: Production 8 ld MSOP 8 Ind Reel, 3000 $2.97 $2.75 Y  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.

AD8476 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8476-EVALZ Status: Production Evaluation Board for 8 Lead MSOP $20.98 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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