INA826_13 Datasheet, PDF (1/43 Pages) Texas Instruments – Supply Instrumentation Amplifier

INA826
www.ti.com
SBOS562E – AUGUST 2011 – REVISED APRIL 2013
Precision, 200-µA Supply Current, 2.7-V to 36-V Supply
Instrumentation Amplifier with Rail-to-Rail Output
Check for Samples: INA826
FEATURES
1
•234 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
• Supply Range:
– Single Supply: +2.7 V to +36 V
– Dual Supply: ±1.35 V to ±18 V
• Specified Temperature Range:
–40°C to +125°C
• Packages: MSOP-8, SO-8 and DFN-8
APPLICATIONS
• Industrial Process Controls
• Circuit Breakers
• Battery Testers
• ECG Amplifiers
• Power Automation
• Medical Instrumentation
• Portable Instrumentation
DESCRIPTION
The INA826 is a low-cost instrumentation amplifier
that offers extremely low power consumption and
operates over a very wide single or dual supply
range. A single external resistor sets any gain from 1
to 1000. It offers excellent stability over temperature,
even at G > 1, as a result of the low gain drift of only
35 ppm/°C (max).
The INA826 is optimized to provide excellent
common-mode rejection ratio of over 100 dB (G = 10)
over frequencies up to 5 kHz. In 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 INA826 is well-suited for low
voltage operation from a 2.7 V single supply as well
as dual supplies up to ±18 V.
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 INA826 is available in SO-8, MSOP-8, and tiny
3-mm × 3-mm DFN-8 surface-mount packages. All
versions are specified for the –40°C to +125°C
temperature range.
DEVICE
INA333
PGA280
INA159
PGA112
RELATED PRODUCTS
DESCRIPTION
25-µV V_OS, 0.1 µV/°C V_OS drift, 1.8-V to 5-V, RRO,
50-µA I_Q, chopper-stabilized INA
20-mV to ±10-V programmable gain IA with 3-V or
5-V differential output; analog supply up to ±18 V
G = 0.2 V differential amplifier for ±10-V to 3-V and
5-V conversion
Precision programmable gain op amp with SPI™
interface
-IN 1
R_G 2
R_G 3
+IN 4
8 +V_S
7 V_OUT
6 REF
5 -V_S
MSOP-8, SO-8
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.
SPI is a trademark of Motorola.
2
PhotoMOS is a registered trademark of Panasonic Electric Works Europe AG.
3
All other trademarks are the property of their respective owners.
4
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2013, Texas Instruments Incorporated