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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

INA826S

SBOS770A – MAY 2017 – REVISED JUNE 2017

INA826S Precision, 200-µA Supply Current, 3-V to 36-V Supply

Instrumentation Amplifier With Rail-to-Rail Output and Shutdown

1

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 common-

mode 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA826S

VSON (10)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

INA826S Simplified Internal Schematic