AD8426 Datasheet – Instrumentation Amplifier ( PDF )

Part Number: AD8426

Function: Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

Package: 16-Lead Lead Frame Chip Scale Type

Manufacturer: Analog Devices

Image and Pinouts:

AD8426 datasheet



The AD8426 is a dual-channel, low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain from 1 to 1000. The AD8426 is designed to work with a variety of signal voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Because the input range can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8426 operates on supplies ranging from ±1.35 V to ±18 V for dual supplies and 2.2 V to 36 V for a single supply.
The robust AD8426 inputs are designed to connect to real world sensors. In addition to its wide operating range, the AD8426 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage. Minimum and maximum input bias currents are specified to facilitate open-wire detection.


1. 2 channels in a small, 4 mm × 4 mm LFCSP
2. LFCSP package has no metal pad
3. More routing room
4. No current leakage to pad
5. Gain set with 1 external resistor
6. Gain range: 1 to 1000
7. Input voltage goes below ground
8. Inputs protected beyond supplies
9. Very wide power supply range
10. Single supply: 2.2 V to 36 V
11. Dual supply: ±1.35 V to ±18 V
12. Bandwidth (G = 1): 1 MHz
13. CMRR (G = 1): 80 dB minimum
14. Input noise: 24 nV/√Hz
15. Typical supply current (per amplifier): 350 μA
16. Specified temperature range: −40°C to +125°C


1. Industrial process controls
2. Bridge amplifiers
3. Medical instrumentation
4. Portable data acquisition
5. Multichannel systems

Other data sheets are available within the file:

AD8426 Datasheet PDF Download

AD8426 pdf