Add to Signal Chain Designer

AD8277:  Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

Product Details

Product Status:Recommended for New Designs

The AD8276/AD8277 are general-purpose, unity-gain difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. They provide exceptional common-mode rejection ratio (86 dB) and high bandwidth while amplifying signals well beyond the supply rails. The on-chip resistors are laser-trimmed for excellent gain accuracy and high CMRR. They also have extremely low gain drift vs. temperature.

The common-mode range of the amplifiers extends to almost double the supply voltage, making these amplifiers ideal for single-supply applications that require a high common-mode voltage range. The internal resistors and ESD circuitry at the inputs also provide overvoltage protection to the op amps.

The AD8276/AD8277 are unity-gain stable. While they are optimized for use as difference amplifiers, they can also be connected in high precision, single-ended configurations with G = −1, +1, +2. The AD8276/AD8277 provide an integrated precision solution that has smaller size, lower cost, and better performance than a discrete alternative.

The AD8276/AD8277 operate on single supplies (2.0 V to 36 V) or dual supplies (±2 V to ±18 V). The maximum quiescent supply current is 200 μA per channel, which is ideal for battery-operated and portable systems.

The AD8276 is available in the space-saving 8-lead MSOP and SOIC packages, and the AD8277 is offered in a 14-lead SOIC package. Both are specified for performance over the industrial temperature range of −40°C to +85°C and are fully RoHS compliant.

Applications

  • Voltage measurement and monitoring
  • Current measurement and monitoring
  • Differential output instrumentation amplifier
  • Portable, battery-powered equipment
  • Test and measurement

FEATURES and BENEFITS

  • Wide input range beyond supplies
  • Rugged input overvoltage protection
  • Low supply current: 200 μA maximum per channel
  • Low power dissipation: 0.5 mW at VS = 2.5 V
  • Bandwidth: 550 kHz
  • CMRR: 86 dB minimum, dc to 10 kHz
  • Low offset voltage drift: ±2 μV/°C maximum (B Grade)
  • Please see data sheet for additional features.

Functional Block Diagram for AD8277

Documentation

Title Content Type File Type
AD8276/AD8277: Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers Data Sheet (Rev C, 11/2011) (pdf, 535 kB) Data Sheets PDF
CN-0341: Magnetoresistive Linear Position Measurement  (pdf, 481 kB) Circuit Note PDF
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
Low Power Amplifiers Overview HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8277 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

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.

SampleSample & Buy

Price, packaging, availability

AD8277 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8277ARZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $1.92 $1.60 Y  Material Info PCN Purchase Sample
AD8277ARZ-R7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $1.60 Y  Material Info PCN Purchase
AD8277ARZ-RL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $1.60 Y  Material Info PCN Purchase
AD8277BRZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $2.82 $2.35 Y  Material Info PCN Purchase Sample
AD8277BRZ-R7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $2.35 Y  Material Info PCN Purchase
AD8277BRZ-RL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $2.35 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.


沪ICP备09046653号
content here.
content here.

Review this Product

Close