DESCRIPTION
The LT ®1920 is a low power, precision instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. The low voltage noise of 7.5nV/√Hz (at 1kHz) is not compromised by low power dissipation (0.9mA typical for ±2.3V to ±15V supplies).

FEATURES
■ Single Gain Set Resistor: G = 1 to 10,000
■ Gain Error: G = 10, 0.3% Max
■ Gain Nonlinearity: G = 10, 30ppm Max
■ Input Offset Voltage: G = 10, 225µV Max
■ Input Offset Voltage Drift: 1µV/°C Max
■ Input Bias Current: 2nA Max
■ PSRR at G = 1: 80dB Min
■ CMRR at G = 1: 75dB Min
■ Supply Current: 1.3mA Max
■ Wide Supply Range: ±2.3V to ±18V
■ 1kHz Voltage Noise: 7.5nV/√Hz
■ 0.1Hz to 10Hz Noise: 0.28µVP-P
■ Available in 8-Pin PDIP and SO Packages
■ Meets IEC 1000-4-2 Level 4 ESD Tests with Two External 5k Resistors

APPLICATIONS
■ Bridge Amplifiers
■ Strain Gauge Amplifiers
■ Thermocouple Amplifiers
■ Differential to Single-Ended Converters
■ Medical Instrumentation