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See Technical Specifications

INA114AU/1K

1-MHz, 50-μV, 11-nV/√Hz, 3mA-power, precision instrumentation amplifier

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

INA114AU/1K
Datasheet:

INA114AU/1K Datasheet (PDF)
Number of channels:

1
Vs (max) (V):

36
Vs (min) (V):

4.5
Input offset (±) (max) (µV):

50
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INA114AU/1K General Description

The INA114 is a low cost, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications.

A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.

The INA114 is laser trimmed for very low offset voltage (50µV), drift (0.25µV/°C) and high common-mode rejection (115dB at G = 1000). It operates with power supplies as low as ±2.25V, allowing use in battery operated and single 5V supply systems. Quiescent current is 3mA maximum.

The INA114 is available in 8-pin plastic and ceramic DIPs, and SOL-16 surface-mount packages, specified for the -40°C to +85°C temperature range.

Key Features

LOW OFFSET VOLTAGE: 50µV max
LOW DRIFT: 0.25µV/°C max
LOW INPUT BIAS CURRENT: 2nA max
HIGH COMMON-MODE REJECTION: 115dB min
INPUT OVER-VOLTAGE PROTECTION: ±40V
WIDE SUPPLY RANGE: ±2.25 to ±18V
LOW QUIESCENT CURRENT: 3mA max
8-PIN PLASTIC AND CERAMIC DIP, SOL-16

Specifications

Number of channels	1	Vs (max) (V)	36
Vs (min) (V)	4.5	Input offset (±) (max) (µV)	50
Voltage gain (min) (V/V)	1	Voltage gain (max) (V/V)	10000
Noise at 1 kHz (typ) (nV√Hz)	11	Features	Overvoltage protection
CMRR (min) (dB)	115	Input offset drift (±) (max) (V/°C)	0.00000025
Input bias current (±) (max) (nA)	2	Iq (typ) (mA)	2.2
Bandwidth at min gain (typ) (MHz)	1	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)	1.3	Output swing headroom (to positive supply) (typ) (V)	-1.3
Input common mode headroom (to negative supply) (typ) (V)	1.5	Input common mode headroom (to positive supply) (typ) (V)	-1.5
Noise at 0.1 Hz to 10 Hz (typ) (µVPP)	0.4	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	16
feature-cecc-qualified	No	feature-esd-protection	Yes
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