The LT1991 combines a precision operational amplifier with eight precision resistors to form a one-chip solution for accurately amplifying voltages. Gains from -13 to 14 with a gain accuracy of 0.04% can be achieved using no external components. The device is particularly well suited for use as a difference amplifier, where the excellent resistor matching results in a common mode rejection ratio of greater than 75dB. The amplifier features a 50µV maximum input offset voltage and a gain bandwidth product of 560kHz. The device operates from any supply voltage from 2.7V to 36V and draws only 100µA supply current on a 5V supply. The output swings to within 40mV of either supply rail. The resistors have excellent matching, 0.04% over temperature for the 450k resistors. The matching temperature coefficent is guaranteed less than 3ppm/°C. The resistors are extremely linear with voltage, resulting in a gain nonlinearity of less than 10ppm. The LT1991 is fully specified at 5V and ±15V supplies and from -40°C to 85°C. The device is available in space saving 10-lead MSOP and low profile (0.8mm) 3mm × 3mm DFN packages. Applications * Handheld Instrumentation * Medical Instrumentation * Strain Gauge Amplifiers * Differential to Single-Ended Conversion * Pin Configurable as a Difference Amplifier, Inverting and Noninverting Amplifier * Difference Amplifier * Gain Range 1 to 13 * CMRR >75dB * Noninverting Amplifier * Gain Range 0.07 to 14 * Inverting Amplifier * Gain Range -0.08 to -13 * Gain Error <0.04% * Gain Drift < 3ppm/°C * Wide Supply Range: Single 2.7V to Split ±18V * Micropower: 100µA Supply Current * Precision: 50µV Maximum Input Offset Voltage * 560kHz Gain Bandwidth Product * Rail-to-Rail Output * Space Saving 10-Lead MSOP and DFN Packages https://elecena.pl/product/246168/precision-100-a-gain-selectable-amplifier 2007-03-01 https://elecena.pl/product/246168/precision-100-a-gain-selectable-amplifier 2017-10-10 https://elecena.pl/product/246168/precision-100-a-gain-selectable-amplifier 2025-01-20