R

G

R

G

+IN

+V

S

V

OUT

REF

1

2

3

4

8

7

6

5

-

IN

-

V

S

MSOP-8,SO-8

INA826

www.ti.com

SBOS562B

– AUGUST 2011 – REVISED DECEMBER 2011

Precision, 200-

µA Supply Current, 2.7-V to 36-V Supply

Instrumentation Amplifier with Rail-to-Rail Output

Check for Samples: INA826

1

FEATURES

DESCRIPTION

The INA826 is a low-cost instrumentation amplifier

234

•

Input Common-Mode Range: Includes V

–

that offers extremely low power consumption and

•

Common-Mode Rejection:

operates over a very wide single or dual supply

– 104 dB, min (G = 10)

range. A single external resistor sets any gain from 1

to 1000. It offers excellent stability over temperature,

– 100 dB, min at 5 kHz (G = 10)

even at G

> 1, as a result of the low gain drift of only

•

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

35 ppm/

°C (max).

•

Low Offset Voltage: 150

µV, max

The

INA826

is

optimized

to

provide

excellent

•

Gain Drift: 1 ppm/

°C (G = 1), 35 ppm/°C (G > 1)

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

•

Noise: 18 nV/

√Hz, G ≥ 100

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

common-mode rejection ratio exceeds 84 dB across

•

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

the full input common-mode range from the negative

•

Inputs Protected up to

±40 V

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

•

Rail-to-Rail Output

Using a rail-to-rail output, the INA826 is well-suited

for low voltage operation from a 2.7 V single supply

•

Supply Current: 200

µA

as well as dual supplies up to

±18 V.

•

Supply Range:

Additional

circuitry

protects

the

inputs

against

– Single Supply: +2.7 V to +36 V

overvoltage of up to

±40 V beyond the power

– Dual Supply: ±1.35 V to ±18 V

supplies by limiting the input currents to less than

•

Specified Temperature Range:

8 mA.

–40°C to +125°C

The INA826 is available in SO-8, MSOP-8, and tiny

•

Packages: MSOP-8, SO-8 and DFN-8

3-mm

× 3-mm DFN-8 surface-mount packages. All

versions are specified for the

–40°C to +125°C

APPLICATIONS

temperature range.

•

Industrial Process Controls

RELATED PRODUCTS

•

Circuit Breakers

DEVICE

DESCRIPTION

•

Battery Testers

25-

INA333

50-

•

ECG Amplifiers

20-mV to

±10-V programmable gain IA with 3-V or

•

Power Automation

PGA280

5-V differential output; analog supply up to

±18 V

•

Medical Instrumentation

G = 0.2 V differential amplifier for

±10-V to 3-V and

INA159

•

Portable Instrumentation

5-V conversion

Precision programmable gain op amp with SPI

™

PGA112

interface

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

SPI is a trademark of Motorola.

3

PhotoMOS is a registered trademark of Panasonic Electric Works Europe AG.

4

All other trademarks are the property of their respective owners.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright

© 2011, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.