Abaco Systems / VMIC VMIVME-3413-000 32-Channel Signal Conditioning Board

The Abaco Systems / VMIC VMIVME-3413-000 is a 32-channel signal conditioning board for VMEbus systems that interfaces with low-level analog signals from transducers and other instrumentation sources. Optimized for use with Abaco's 64-channel scanning A/D boards and compatible with high-level analog multiplexers, this 6U double-height VME module provides precise signal conditioning and isolation in demanding industrial and test environments.

Technical Specifications

• Channels: 32 differential or single-ended analog inputs


• Form Factor: VME 6U double-height board


• Input Range: Selectable full-scale ranges from 5 mV to 10 V. Ordering options include ±10 mV, ±100 mV, ±1 V, ±10 V (for ±10 V full-scale output) and ±5 mV, ±50 mV, ±500 mV, ±5 V (for ±5 V full-scale output)


• Isolation: 500 VDC from VMEbus


• Low-Pass Filters: Three-pole passive filters available at 10 Hz, 100 Hz, or 1 kHz


• Current Loop Termination: Optional 250 Ω (0.01%) resistor available; maximum input ±40 mA


• Common-Mode Rejection (CMRR): 125 dB when referred to VME power supply common across all gains; DC–60 Hz performance ranges from 78 dB to 120 dB when referred to 4-channel group common, depending on gain setting and filter option


• Input Configuration: Differential, single-ended, or half-bridge; jumper configurable

Key Features

• Buffered high-level analog outputs


• Optional analog current loop inputs


• No switching noise from passive filter design


• VME electrical connectivity via 5 VDC power bus only


• P3/P4 connectors support Applied Wire and IDC connector options from standard manufacturers


• P5 connector available

Typical Applications Temperature and pressure sensor signal conditioning, transducer interface for data acquisition systems, low-level analog multiplexing in VMEbus environments.

Compatibility & Integration This board integrates with standard VMEbus systems and can precondition signals for high-resolution analog-to-digital conversion. It does not support VME control functions.