1 Features

1• Input Common-Mode Range: Includes V–

• Common-Mode Rejection:

– 104 dB (Min, G = 10)

– 100 dB (Min at 5 kHz, G = 10)

• Power-Supply Rejection: 100 dB (Min, G = 1)

• Low Offset Voltage: 150 μV, max

• Gain Drift: 1 ppm/°C (G = 1), 35 ppm/°C (G > 1)

• Noise: 18 nV/√Hz, G ≥ 100

• Bandwidth: 1 MHz (G = 1), 60 kHz (G = 100)

• Inputs Protected up to ±40 V

• Rail-to-Rail Output

• Supply Current: 200 μA

– Shutdown Current: 2 μA

• Supply Range:

– Single Supply: 3 V to 36 V

– Dual Supply: ±1.5 V to ±18 V

• Specified Temperature Range:

–40°C to +125°C

• Packages: 3-mm × 3-mm VSON

2 Applications

• Industrial Process Controls

• Circuit Breakers

• Battery Testers

• ECG Amplifiers

• Power Automation

• Medical Instrumentation

• Portable Instrumentation

3 Description

The INA826S device is a low-cost instrumentation

amplifier that offers extremely low power consumption

along with shutdown and operates over a very wide

single- or dual-supply range. A single external resistor

sets any gain from 1 to 1000. The device offers

excellent stability over temperature, even at G > 1, as

a result of the low gain drift of only 35 ppm/°C (max).

The INA826S is optimized to provide excellent

common-mode rejection ratio of over 100 dB (G = 10)

over frequencies up to 5 kHz. At G = 1, the commonmode

rejection ratio exceeds 84 dB across the full

input common-mode range from the negative supply

all the way up to 1 V of the positive supply. Using a

rail-to-rail output, the INA826S is well-suited for low

voltage operation from a 3-V single supply as well as

dual supplies up to ±18 V.

Shutdown pins are provided to reduce supply current

below 2 μA. Additional circuitry protects the inputs

against overvoltage of up to ±40 V beyond the power

supplies by limiting the input currents to less than

8 mA.

The INA826S is available in a 10-pin, 3-mm ×

3-mm VSON surface-mount package. The INA826S

is specified over the –40°C to +125°C temperature

range.