INA2332:Low-Power, Single-Supply, CMOS Instrumentation Amplifiers

The INA332 and INA2332 are rail-to-rail output, low-power CMOS instrumentation amplifiers that offer wide range, single-supply, and bipolar-supply operation. Using a special manufacturing flow, the INA332 family provides the lowest cost available, while still achieving low-noise amplification of differential signals with low quiescent current of 415?A (dropping to 0.01?A when shutdown). Returning to normal operation within microseconds, this INA can be used for battery or multichannel applications.

Configured internally in a gain of 5V/V, the INA332 offers flexibility in higher gains by choosing external resistors.

The INA332 rejects line noise and its harmonics because common-mode error remains low even at higher frequencies.

High bandwidth and slew rate make the INA332 ideal for directly driving sampling Analog-to-Digital (A/D) converters as well as general-purpose applications.

With high precision, low cost, and small packages, the INA332 outperforms discrete designs.

Additionally, because they are specified for wide temperature range of –55°C to +125°C and operating range of –65°C to +150°C, the INA331 family can be used in demanding environments.

Features
  • DESIGNED FOR LOW COST
  • HIGH GAIN ACCURACY: G = 5, 0.07%, 2ppm/°C
  • GAIN SET WITH EXT. RESISTORS FOR >5V/V
  • HIGH CMRR: 73dB DC, 50dB at 45kHz
  • LOW BIAS CURRENT: 0.5pA
  • BANDWIDTH,SLEW RATE: 2.0MHz, 5V/?s
  • RAIL-TO-RAIL OUTPUT SWING: (V+)– 0.02V
  • WIDE TEMPERATURE RANGE: –55°C to +125°C
  • LOW QUIESCENT CURRENT: 490 ?A max/chan
  • SHUT DOWN: 0.01 ?A
  • MSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGES
  • APPLICATIONS
    • INDUSTRIAL SENSOR AMPLIFIERS:
        Bridge, RTD, Thermocouple, Position
    • PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
    • A/D CONVERTER SIGNAL CONDITIONING
    • DIFFERENTIAL LINE RECEIVERS WITH GAIN
    • FIELD UTILITY METERS
    • PCMCIA CARDS
    • AUDIO AMPLIFIERS
    • COMMUNICATION SYSTEMS
    • TEST EQUIPMENT
    • AUTOMOTIVE INSTRUMENTATION
  • INDUSTRIAL SENSOR AMPLIFIERS:
      Bridge, RTD, Thermocouple, Position
  • PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
  • A/D CONVERTER SIGNAL CONDITIONING
  • DIFFERENTIAL LINE RECEIVERS WITH GAIN
  • FIELD UTILITY METERS
  • PCMCIA CARDS
  • AUDIO AMPLIFIERS
  • COMMUNICATION SYSTEMS
  • TEST EQUIPMENT
  • AUTOMOTIVE INSTRUMENTATION
Parametrics
keyINA2332INA332
Number of Channels (#)21
Vs (Min) (V)2.52.5
Vs (Max) (V)5.55.5
CMRR (Min) (dB)6060
Input Offset (+/-) (Max) (uV)80008000
Input Offset Drift (+/-) (Max) (uV/C)55
Input Bias Current (+/-) (Max) (nA)0.010.01
Noise at 1kHz (Typ) (nV/rt(Hz))4646
Iq (Typ) (mA)0.4150.415
Bandwidth at Min Gain (Typ) (MHz)22
Gain (Min) (V/V)55
Gain (Max) (V/V)10001000
Gain Error (+/-) (Max) (%)0.40.4
RatingCatalogCatalog
Operating Temperature Range (C)-55 to 125-55 to 125
Package GroupTSSOPVSSOP
Approx. Price (US$)0.95 | 1ku0.54 | 1ku
Package Size: mm2:W x L (PKG)14TSSOP: 32 mm2: 6.4 x 5(TSSOP)8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)77
Gain Non-Linearity (+/-) (Max) (%)0.40.4
Datasheet?(1)
TitleTypeSize (KB)Date
INA332, INA2332 Low-Power, Single-Supply, CMOS Instrumentation Amplifiers (Rev. B)PDF98912 Oct 2006
Selection & solution guides?(1)
TitleTypeSize (KB)Date
Analog Signal Chain Guide (Rev. B)PDF600011 Jul 2013
Development tools?(2)
NamePart#Type
Calculate Input Common-Mode Range of Instrumentation AmplifiersINA-CMV-CALCCalculation Tools
SPICE-Based Analog Simulation ProgramTINA-TICircuit Design & Simulation
Ordering Information
Part #Preproduction / Production MaterialStatusTemp(oC)Price | QTYPackage | PinsDevice MarkingPackage QTY | Carrier
INA2332AIPWRProductionACTIVE-55 to 1250.95 | 1kuTSSOP?(PW)INA 2332A2500 | LARGE T&R
INA2332AIPWTProductionACTIVE-55 to 1251.10 | 1kuTSSOP?(PW)INA 2332A250 | SMALL T&R
INA2332AIPWTG4ProductionACTIVE-55 to 1251.10 | 1kuTSSOP?(PW)INA 2332A250 | SMALL T&R
INA332, INA2332 Low-Power, Single-Supply, CMOS Instrumentation Amplifiers INA2332
所选封装材料的热学和电学性质 DCP010505B
模拟信号链路产品指南 (Rev. B) BQ24392
INA2332
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