AD8290 Datasheet PDF – CMOS Sensor Amplifier

Part Number: AD8290

Function: G = 50, CMOS Sensor Amplifier with Current Excitation

Package: 16-Lead LFCSP_UQ

Manufacturer: Analog Devices


AD8290 datasheet



The AD8290 contains both an adjustable current source to drive a sensor and a difference amplifier to amplify the signal voltage. The amplifier is set for a fixed gain of 50. The IC is an excellent solution for both the drive and the sensing aspects required for pressure, temperature, and strain gage bridges. In addition, because the AD8290 operates with low power, works with a range of low supply voltages, and is available in a low profile package, it is suitable for drive/sense circuits in portable electronics as well. The device is available in a lead free 3.0 mm × 3.0 mm ×0.55 mm package and is operational over the industrial temperature range of −40°C to +85°C.

Block Diagram

AD8290 CMOS Sensor Amplifier


1. Supply voltage range : 2.6 V to 5.5 V
2. Low power
(1) 1.2 mA + 2× excitation current
(2) 0.5 μA shutdown current
3. Low input bias current: ±100 pA
4. High CMRR: 120 dB
5. Space savings: 16-lead, 3.0 mm × 3.0 mm × 0.55 mm LFCSP
6. Excitation current
(1) 300 μA to 1300 μA range
(2) Set with external resistor


1. Bridge and sensor drives
2. Portable electronics

VCC= 2.6 V to 5.0 V, TA= 25°C, CFILTER= 6.8 nF, output antialiasing capacitor = 68 nF, RSET= 3 kΩ, common-mode input = 0.6 V, unless otherwise noted.

Other data sheets are available within the file: AD8290ACPZ-R2 ,AD8290ACPZ-R7 ,AD8290ACPZ-RL

AD8290 Datasheet PDF Download

AD8290 pdf