LT1991 Datasheet | Linear Technology

LT1991 Precision, 100µA Gain Selectable Amplifier .. Features n n DESCRIPTION The LT®1991 bines 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 ponents. The device is particularly well suited for use as a difference amplifier, where the excellent resistor matching results in a mon mode rejection ratio of greater than 75d B. The amplifier Features a 50μV maximum input offset voltage and a gain bandwidth product of 560k Hz. 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 40m V 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 125°C. The device is available in space saving 10-lead MSOP and low profile (0.8mm) 3mm × 3mm DFN packages. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n n n n n n n n n n Pin Configurable as a Difference Amplifier, Inverting and Noninverting Amplifier Difference Amplifier Gain Range 1 to 13 CMRR >75d B 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 560k Hz Gain Bandwidth Product Rail-to-Rail Output Space Saving 10-Lead MSOP and DFN Packages APPLICATIONS n n n n Handheld Instrumentation Medical Instrumentation Strain Gauge Amplifiers Differential to Single-Ended Conversion TYPICAL...