DESCRIPTION
The LTC®6915 is a precision programmable gain instrumentation amplifier. The gain can be programmed to 0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 through a parallel or serial interface. The CMRR is typically 125dB with a dual 5V supply with any programmed gain. The offset is below 10µV with a temperature drift of less than 50nV/°C.

FEATURES
■ 14 Levels of Programmable Gain
■ 125dB CMRR Independent of Gain
■ Gain Accuracy 0.1% (Typ)
■ Maximum Offset Voltage of 10µV
■ Maximum Offset Voltage Drift: 50nV/°C
■ Rail-to-Rail Input and Output
■ Parallel or Serial (SPI) Interface for Gain Setting
■ Supply Operation: 2.7V to ±5.5V
■ Typical Noise: 2.5µVP-P (0.01Hz to 10Hz)
■ 16-Lead SSOP and 12-Lead DFN Packages

APPLICATIONS
■ Thermocouple Amplifiers
■ Electronic Scales
■ Medical Instrumentation
■ Strain Gauge Amplifier
■ High Resolution Data Acquisition