AD8277 Datasheet

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

Part No.:
AD8277
Manufacturer:
Analog Devices, Inc.
Page:
22 Pages
Size:
417 KB
Views:
0
Update Time:
2025-11-14 15:18:38

AD8277 DataSheet Applicable Part

Part No. In Stock Price Packaging SPQ Marking MSL Pins Temp Range Package Description
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

AD8277 DataSheet PDF

AD8277 Features

  • Wide input range beyond supplies
  • Rugged input overvoltage protection
  • Low supply current: 200 μA maximum per channel
  • Low power dissipation: 0.54 mW at VS = 2.7 V
  • Bandwidth: 550 kHz
  • CMRR: 86 dB minimum, dc to 10 kHz
  • System offset voltage: ±2 μV/°C maximum (B Grade)
  • Low gain drift: 1 ppm/°C maximum (B Grade)
  • Enhanced slew rate: 1.1 V/μs
  • Wide power supply range
    • Single supply: 2.0 V to 36 V
    • Dual supplies: ±2 V to ±18 V

AD8277 Applications

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

AD8277 Description

The 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 86 dB common-mode rejection ratio (CMRR) and high bandwidth while amplifying signals well beyond the supply rails. The on-chip resistors are laser trimmed for gain drift of 1 ppm/°C and high CMRR. The AD8277 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 electrostatic discharge (ESD) circuitry at the inputs also provide overvoltage protection to the op amps.

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

The 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 AD8277 is offered in a 14-lead SOIC package. The AD8277 is specified for performance over the industrial temperature range of −40°C to +85°C and are fully RoHS compliant.

AD8277 Datasheet FAQs