Low Noise, Low Distortion Instrumentation Amplifier - INA103

INA103 (ACTIVE)

Low Noise, Low Distortion Instrumentation Amplifier

 

Description

The INA103 is a very low noise, low distortion monolithic instrumentation amplifier. Its current-feedback circuitry achieves very wide bandwidth and excellent dynamic response. It is ideal for low-level audio signals such as balanced low-impedance microphones. The INA103 provides near-theoretical limit noise performance for 200(ohm) source impedances. Many industrial applications also benefit from its low noise and wide bandwidth.

Unique distortion cancellation circuitry reduces distortion to extremely low levels, even in high gain. Its balanced input, low noise and low distortion provide superior performance compared to transformer-coupled microphone amplifiers used in professional audio equipment.

The INA103’s wide supply voltage (±9 to ±25V) and high output current drive allow its use in high-level audio stages as well. A copper lead frame in the plastic DIP assures excellent thermal performance.

The INA103 is available in 16-pin plastic DIP, 16-pin ceramic DIP and SOL-16 surface-mount packages. Commercial and industrial temperature range models are available.

Features

  • LOW NOISE: 1nV/sqrt(Hz)
  • LOW THD+N: 0.0009% at 1kHz, G = 100
  • HIGH GBW: 100MHz at G = 1000
  • WIDE SUPPLY RANGE: ±9V to ±25V
  • HIGH CMRR: >110dB
  • BUILT-IN GAIN SETTING RESISTORS: G = 1, 100
  • UPGRADES AD625

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Parametrics Compare all products in Instrumentation Amplifiers

 
Number of Channels (#)
Vs (Min) (V)
Vs (Max) (V)
CMRR (Min) (dB)
Input Offset (+/-) (Max) (uV)
Input Offset Drift (+/-) (Max) (uV/C)
Input Bias Current (+/-) (Max) (nA)
Noise at 1kHz (Typ) (nV/rt(Hz))
Iq (Typ) (mA)
Bandwidth at Min Gain (Typ) (MHz)
Gain (Min) (V/V)
Gain (Max) (V/V)
Gain Error (+/-) (Max) (%)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Gain Non-Linearity (+/-) (Max) (%)
INA103
1   
9   
25   
100   
30   
100   
8000   
1   
9   
6   
1   
1000   
0.25   
Catalog   
-40 to 85   
PDIP
SOIC   
See datasheet (PDIP)
16SOIC: 77 mm2: 7.5 x 10.3(SOIC)   
0.004   

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