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See Technical Specifications

INA118UB/2K5

Precision, Low Power Instrumentation Amplifier

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

INA118UB/2K5
Datasheet:

INA118UB/2K5 Datasheet (PDF)
Number of channels:

1
Vs (max) (V):

36
Vs (min) (V):

2.7
Input offset (±) (max) (µV):

50
EDA/CAD Models:

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INA118UB/2K5 General Description

The INA118 is a low-power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile, three op amp design and small size make this device an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth, even at high gain (70 kHz at G = 100).

A single external resistor sets any gain from 1 to 10000. Internal input protection can withstand up to ±40 V without damage.

The INA118 is laser-trimmed for low offset voltage (50 µV), drift (0.5 µV/°C), and high common-mode rejection (110 dB at G = 1000). The INA118 operates with power supplies as low as ±2.25 V, and quiescent current is only 350 µA, making this device an excellent choice for battery-operated systems.

The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, and specified for the –40°C to +85°C temperature range.

The upgraded INA818 offers a lower input stage offset voltage (35 µV, maximum), lower input bias current (0.5 nA maximum) and lower noise (8 nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.

Key Features

A newer version of this device is now available: INA818
Low offset voltage: 50 µV, maximum
Low drift: 0.5 µV/°C, maximum
Low input bias current: 5 nA, maximum
High CMR: 110 dB, minimum
Inputs protected to ±40 V
Wide supply range: ±2.25 to ±18 V
Low quiescent current: 350 µA
Packages: 8-Pin plastic DIP, SO-8

Specifications

Number of channels	1	Vs (max) (V)	36
Vs (min) (V)	2.7	Input offset (±) (max) (µV)	50
Voltage gain (min) (V/V)	1	Voltage gain (max) (V/V)	10000
Noise at 1 kHz (typ) (nV√Hz)	10	Features	Overvoltage protection
CMRR (min) (dB)	110	Input offset drift (±) (max) (V/°C)	0.0000005
Input bias current (±) (max) (nA)	5	Iq (typ) (mA)	0.35
Bandwidth at min gain (typ) (MHz)	0.8	Gain error (±) (max) (%)	0.5
Operating temperature range (°C)	-40 to 85	Rating	Catalog
Type	Resistor	Gain nonlinearity (±) (max) (%)	0.002
Output swing headroom (to negative supply) (typ) (V)	0.2	Output swing headroom (to positive supply) (typ) (V)	-0.8
Input common mode headroom (to negative supply) (typ) (V)	0.95	Input common mode headroom (to positive supply) (typ) (V)	-0.65
Noise at 0.1 Hz to 10 Hz (typ) (µVPP)	0.28	feature-number-of-channels-per-chip	1
feature-rail-to-rail		feature-typical-gain-bandwidth-product-mhz
feature-maximum-input-offset-voltage-mv		feature-maximum-operating-supply-voltage-v	±18
feature-maximum-input-bias-current-ua	0.005@±15V	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-cecc-qualified	No	feature-esd-protection
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-auto-motive	No
feature-p-pap	No	feature-eccn-code	EAR99
feature-svhc	Yes	feature-svhc-exceeds-threshold	No