PGA855 Evaluation Module
Abstract
This user's guide contains information and support documentation for the PGA855 evaluation module (EVM). Included are the circuit description, jumper settings, required connections, printed circuit board (PCB) layout, schematic, and bill of materials of the PGA855EVM. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the PGA855EVM.
Trademarks
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1 Overview
The PGA855 is a precision, high-bandwidth programmable gain instrumentation amplifier with fully differential outputs optimized to drive high-performance analog-to-digital converters (ADCs) and fully differential inputs. The PGA855 is equipped with eight binary gain settings, from an attenuating gain of 0.125 V/V to a maximum of 16 V/V, using three digital gain-selection pins. The output common-mode voltage can be independently set using the VOCM pin. The device features super-beta input transistors from Texas Instruments, which provide ultra-low input offset voltage, offset drift, input bias current, input voltage noise, and current noise. For a full list of the electrical characteristics for the PGA855, see the PGA855 Low-Noise, High-Bandwidth, Fully Differential Output Programmable-Gain Instrumentation Amplifier data sheet.
