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INA326 Datasheet(PDF) 1 Page - Texas Instruments |
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INA326 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page INA326 INA327 SBOS222D – NOVEMBER 2001 – REVISED NOVEMBER 2004 www.ti.com DESCRIPTION The INA326 and INA327 (with shutdown) are high-perfor- mance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for appli- cations ranging from general-purpose to high-accuracy. Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product. The INA326 (without shutdown) comes in the MSOP-8 pack- age. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40 °C to +85°C, with operation from –40°C to +125°C. FEATURES q PRECISION LOW OFFSET: 100 µV (max) LOW OFFSET DRIFT: 0.4 µV/°C (max) EXCELLENT LONG-TERM STABILITY VERY-LOW 1/f NOISE q TRUE RAIL-TO-RAIL I/O INPUT COMMON-MODE RANGE: 20mV Below Negative Rail to 100mV Above Positive Rail WIDE OUTPUT SWING: Within 10mV of Rails SUPPLY RANGE: Single +2.7V to +5.5V q SMALL SIZE microPACKAGE: MSOP-8, MSOP-10 q LOW COST PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2001-2004, Texas Instruments Incorporated Precision, Rail-to-Rail I/O INSTRUMENTATION AMPLIFIER Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. APPLICATIONS q LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES q WIDE DYNAMIC RANGE SENSOR MEASUREMENTS q HIGH-RESOLUTION TEST SYSTEMS q WEIGH SCALES q MULTI-CHANNEL DATA ACQUISITION SYSTEMS q MEDICAL INSTRUMENTATION q GENERAL-PURPOSE INA326 AND INA327 RELATED PRODUCTS PRODUCT FEATURES INA337 Precision, 0.4 µV/°C Drift, Specified –40°C to +125°C INA114 50 µV V OS, 0.5nA IB, 115dB CMR, 3mA IQ, 0.25µV/°C Drift INA118 50 µV V OS, 1nA IB, 120dB CMR, 385µA IQ, 0.5µV/°C Drift INA122 250 µV V OS, –10nA IB, 85µA IQ, Rail-to-Rail Output, 3µV/°C Drift INA128 50 µV V OS, 2nA IB, 125dB CMR, 750µA IQ, 0.5µV/°C Drift INA321 500 µV V OS, 0.5pA IB, 94dB CMRR, 60µA IQ, Rail-to-Rail Output INA326 R 1 R 2 C 2 V IN − V IN+ 7 V+ 4 V − V O 5 6 2 1 8 3 G = 2(R 2/R1) INA32 7 INA3 26 |
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