ina2332低功耗单电源CMOS仪表放大器.docVIP

INA332 INA2332 SBOS216B – SEPTEMBER 2001 - REVISED OCTOBER 2006 Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIFIERS 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 ● SHUTDOWN: 0.01?A ● MSOP-8 SINGLE AND TSSOP-14 DUAL PACKAGES DESCRIPTION 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 manu- facturing flow, the INA332 family provides the lowest cost available, while still achieving low-noise amplification of dif- ferential signals with low quiescent current of 415?A (drop- ping to 0.01?A when shut down). Returning to normal opera- tion 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. 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 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, beca