Date: 24/08/2009

New high-speed/ low-power difference amplifiers from Analog Devices

Analog Devices has introduced three new high-speed/low-power difference amplifiers AD8276, AD8277 and AD8278 of 4.9 mm x 3 mm targeted for high-performance, power-critical applications.

ADI claims, the AD8276, AD8277 and AD8278 difference amplifiers are half the size of competing devices and much smaller than discrete alternatives consisting of resistor arrays and operational amplifiers. The amplifiers also eliminate the added expense and design overhead associated with complex peripheral protection circuitry.

The AD827x low-power difference amplifiers features a slew rate of 1.1 V/µs, the input range of two times the power supply and 220-µA maximum quiescent current with an 86-dB CMRR (common-mode rejection ratio), and reject external interferences in low-power systems without increasing system power dissipation. Also offer Short settling time of 15-µS for achieving short propagation delays in control loops. Have laser-trimmed on-chip resistors for accuracy.

AD827x is suitable for sensing voltage and current in process-control, motor-control, and power-management applications.

Availability, Pricing details Product Sampling Availability Temperature Range Price Each Per 1,000 Packaging
AD8276 Single Channel Gain=1 Now -40°C to +125°C $0.95 8-lead SOIC and MSOP packages
AD8277 Dual Channel Gain=1 Now -40°C to +125°C $1.60 14-lead SOIC package
AD8278 Single Channel Gain=0.5/2 Now -40°C to +125°C $0.95 8-lead SOIC and MSOP packages




For more details visit www.analog.com/