INA826S Datasheet, PDF (1/40 Pages) Texas Instruments – Precision, 200-uA Supply Current, 3-V to 36-V Supply Instrumentation Amplifier With Rail-to-Rail Output and Shutdown

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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 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
V+
0.1 mF
R_S(1)
1
-IN
2
R_G
3
R_S(1)
4
+IN
RFI Filter
RFI Filter
8
A₁
24.7 kW
24.7 kW
A₂
50 kW
50 kW
50 kW
V_O = G ´ (V_IN+ - V_IN-)
G = 1 + ^{49.4 kW}
R_G
7
A₃
+
Load ^VO
50 kW
6
-
REF
TI Device
5 _{0.1 mF}
Copyright © 2017, Texas Instruments Incorporated
V-
1
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.