Curtiss-Wright / Pentland Systems MPV901 Analog Input Module

The Curtiss-Wright / Pentland Systems MPV901 is a single-slot VMEbus analog input module for data acquisition and signal conditioning in industrial automation, aerospace, and defense systems. The module converts analog sensor signals to digital format with 12-bit resolution and routes them into VMEbus architectures. Three variants address different measurement requirements: the MPV901 provides analog input only, the MPV901A adds dual 12-bit D/A converters for closed-loop control, and the MPV901P integrates a software-programmable gain amplifier for dynamic signal scaling without hardware reconfiguration.

Technical Specifications Analog Input Architecture

32-channel single-ended or 16-channel differential multiplexer

12-bit analog-to-digital converter

Sample/hold amplifier

Instrumentation amplifier (resistor-programmed on MPV901/MPV901A; software-programmable on MPV901P) Analog Output (MPV901A, MPV901P only)

Two 12-bit digital-to-analog converters with associated control logic Programmable Gain Amplifier (MPV901P)

Dynamic gain and channel selection monitoring

Optimized settling time for maximum data throughput Power Supply

+5V from VMEbus P1 connector

Key Features

Direct VMEbus electrical and mechanical compatibility

Single-slot form factor minimizes backplane footprint

Flexible input configuration supports mixed single-ended and differential topologies

Software-selectable gain on MPV901P eliminates manual jumper changes between measurement ranges

Instrumentation amplifier topology provides high input impedance and common-mode rejection

Typical Applications Data acquisition in vibration monitoring, temperature sensing, pressure transducer interfacing, and analog control loops. Aerospace test stands, defense instrumentation, and industrial process control systems benefit from the module's direct VMEbus integration and configurable channel architecture.

Compatibility & Integration The MPV901 series integrates into VMEbus systems without additional interface electronics. Gain settings and channel selection are monitored in real time on the MPV901P, enabling adaptive measurement without processor intervention between acquisitions.