INA326

INA326 INA327 INA326 INA327 SBOS222D – NOVEMBER 2001 – REVISED NOVEMBER 2004 Precision, Rail-to-Rail I/O INSTRUMENTATION AMPLIFIER FEATURES q PRECISION LOW OFFSET: 100µV (max) LOW OFFSET DRIFT: 0.4µV/°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 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 DESCRIPTION The INA326 and INA327 (with shutdown) are high-performance, 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 applications 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 package. 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 –4...