Inverting Programmable Gain Amplifier (PGA_Inv)

A User-Programmable Inverting Amplifier with Adjustable Gain and High Performance

About

The Inverting Programmable Gain Amplifier (PGA_Inv) component implements an opamp-based inverting amplifier with user-programmable gain. It is derived from the switched capacitor/continuous time (SC/CT) block.

The inverting gain can be between -1.0 (0 dB) and -49.0 (+33.8 dB). The gain can be selected using the configuration window or changed at run time using the provided API. The maximum bandwidth is limited by the gain-bandwidth of the opamp and is reduced as the gain is increased. The input of the PGA_Inv operates from rail to rail, but the maximum input swing (difference between Vin and Vref) is limited to VDDA/Gain. The output of the PGA_Inv is class A, and is rail to rail for sufficiently high load resistance.

This versatile component boasts gain steps spanning from -1 to -49, ensuring high input impedance, and it also comes with adjustable power settings.

The Inverting Programmable Gain Amplifier (PGA_Inv) component implements an opamp-based inverting amplifier with user-programmable gain. It is derived from the switched capacitor/continuous time (SC/CT) block.

The inverting gain can be between -1.0 (0 dB) and -49.0 (+33.8 dB). The gain can be selected using the configuration window or changed at run time using the provided API. The maximum bandwidth is limited by the gain-bandwidth of the opamp and is reduced as the gain is increased. The input of the PGA_Inv operates from rail to rail, but the maximum input swing (difference between Vin and Vref) is limited to VDDA/Gain. The output of the PGA_Inv is class A, and is rail to rail for sufficiently high load resistance.

This versatile component boasts gain steps spanning from -1 to -49, ensuring high input impedance, and it also comes with adjustable power settings.

comp_PGA_Inv
comp_PGA_Inv
comp_PGA_Inv

Design resources