型号INA2332
品牌
分类仪表放大器
描述低功耗、单电源 CMOS 仪表放大器
相关操作
产品概述

参数

Number of channels 2
Vs (max) (V) 5.5
Vs (min) (V) 2.5
Input offset (±) (max) (µV) 8000
Voltage gain (min) (V/V) 5
Voltage gain (max) (V/V) 1000
Noise at 1 kHz (typ) (nV√Hz) 46
Features Cost Optimized, Shutdown
CMRR (min) (dB) 60
Input bias current (±) (max) (nA) 0.01
Iq (typ) (mA) 0.415
Bandwidth at min gain (typ) (MHz) 2
Gain error (±) (max) (%) 0.4
Operating temperature range (°C) -55 to 125
Rating Catalog
Type Resistor
Gain nonlinearity (±) (max) (%) 0.01
Output swing headroom (to negative supply) (typ) (V) 0.025
Output swing headroom (to positive supply) (typ) (V) -0.025
Input common mode headroom (to negative supply) (typ) (V) 0.55
Input common mode headroom (to positive supply) (typ) (V) -1.7
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 7

封装 | 引脚 | 尺寸

TSSOP (PW) 14 32 mm² 5 x 6.4

特性

  • 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/µs
  • RAIL-TO-RAIL OUTPUT SWING: (V+)– 0.02V
  • WIDE TEMPERATURE RANGE: –55°C to +125°C
  • LOW QUIESCENT CURRENT: 490 µA max/chan
  • SHUT DOWN: 0.01 µA
  • 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

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说明

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 415µA (dropping to 0.01µA 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.