PGA116 & PGA117 Programmable Gain Amplifiers Texas Instruments PGA116 and PGA117 Programmable Gain Amplifiers provide integrated front-end programmable gain amplification for microprocessor-based systems, such as MSP430s. The TI devices feature a 10-channel input multiplexer that allows inputs from multiple sources. The PGA116 and PGA117 allow matching of sensor output to an ADC input voltage range and also provide internal calibration channels for system-level calibration.