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INA128PA +BOM

Precision, 130-dB CMRR, 700-µA, Low-Power, Instrumentation Amplifier

Hersteller:

TI
Herstellerteil #:

INA128PA
Datenblatt:

INA128PA Datenblatt (PDF)
Number Of Channels:

1
Vs (max) (V):

36
Vs (min) (V):

4.5
Input Offset (±) (max) (µV):

50
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an INA128PA

INA128PA Allgemeine Beschreibung

The INA128 and INA129 (INA12x) are low-power, general-purpose instrumentation amplifiers that offer excellent accuracy. The versatile three op amp design and small size make these amplifiers an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200 kHz at G = 100).

A single external resistor sets any gain from 1 to 10,000. The INA128 provides an industry-standard gain equation with a 50-kΩ resistor. The INA129 gain equation uses a 49.4-kΩ resistor to allow for drop-in replacements of comparable devices.

The INA12x are available in plastic DIP and surface-mount packages, specified for the –40°C to +85°C temperature range. The INA128 is also available in a dual configuration, the INA2128.

The upgraded INA828 offers a lower input bias current (0.6 nA, max) and lower noise (7 nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.

Hauptmerkmale

Low offset voltage: 50 µV, maximum
Low drift: 0.5 µV/°C, maximum
Low input bias current: 5 nA, maximum
Low noise: 8 nV/√Hz, 0.2 µVpp
High CMR: 120 dB, minimum
Bandwidth: 1.3 MHz (G = 1)
Inputs protected to ±40 V
Wide supply range: ±2.25 V to ±18 V
Low quiescent current: 700 µA
Packages: 8-pin plastic DIP, SO-8

Spezifikationen

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)	8	Features	Current Feedback, Overvoltage protection
CMRR (min) (dB)	120	Input offset drift (±) (max) (V/°C)	0.0000005
Input bias current (±) (max) (nA)	5	Iq (typ) (mA)	0.7
Bandwidth at min gain (typ) (MHz)	1.3	Gain error (±) (max) (%)	0.5
Operating temperature range (°C)	-40 to 125	Rating	Catalog
Type	Resistor	Gain nonlinearity (±) (max) (%)	0.004
Output swing headroom (to negative supply) (typ) (V)	0.8	Output swing headroom (to positive supply) (typ) (V)	-0.9
Input common mode headroom (to negative supply) (typ) (V)	1.7	Input common mode headroom (to positive supply) (typ) (V)	-1.4
Noise at 0.1 Hz to 10 Hz (typ) (µVPP)	0.2

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