VXI Technology VM2616 + VM1548

16-Channel 16-Bit Digitizer & 48-Channel TTL I/O Module Set

Detailed Description

The VXI Technology VM2616 paired with the VM1548 provides a powerful mixed-signal instrumentation solution for VXI-based automated test systems. This configuration combines high-resolution analog waveform acquisition with high-density digital I/O control, making it well-suited for aerospace, defense, industrial electronics, and production ATE environments.

The VM2616 is a 16-channel, 16-bit digitizer designed for accurate multi-channel analog signal acquisition. It supports synchronous sampling across channels and integrates tightly into VXI trigger architectures, allowing deterministic measurement coordination across complex test racks.

The VM1548 complements the digitizer with 48 channels of TTL-compatible digital I/O, enabling high-channel-count digital stimulus and response monitoring. This makes the module ideal for UUT interface control, logic verification, state monitoring, relay drive control (with external drivers), and programmable digital test sequencing.

Together, this module set provides a scalable mixed-signal platform capable of simultaneous analog measurement and digital system interaction within a standardized VXI instrumentation framework.

VM2616 – 16-Channel 16-Bit Digitizer

Key Features

• 16 simultaneous analog input channels

• 16-bit ADC resolution

• Programmable input voltage ranges

• Synchronous multi-channel sampling

• VXI TTL trigger compatibility

• Buffered waveform acquisition

• Designed for integration into automated test systems

Typical Technical Specifications

• Number of Channels: 16 analog input channels

• Resolution: 16-bit

• Input Coupling: DC

• Programmable Input Ranges: ±10 V, ±5 V (model dependent)

• Input Impedance: 1 MΩ typical

• Sampling Rate: Up to 200 kS/s per channel (aggregate dependent on configuration)

• Acquisition Memory: Onboard waveform buffer

• Triggering: Internal, external, and VXIbus TTL trigger lines

• Interface: VXI backplane

Application Use Cases

• Sensor signal acquisition

• Low-frequency waveform capture

• Power supply ripple measurement

• Control system diagnostics

• Multi-channel data logging

• Closed-loop system verification

VM1548 – 48-Channel TTL Digital I/O Module

Key Features

• 48 channels of TTL-compatible digital I/O

• Configurable input or output per channel/group

• Buffered and programmed I/O modes

• VXI trigger support

• High-density digital interface for ATE

Typical Technical Specifications

• Number of Channels: 48 TTL digital lines

• Logic Levels: TTL-compatible

• Input Voltage Levels:

  • Logic High ≥ 2.0 V

  • Logic Low ≤ 0.8 V

• Output Drive Capability: TTL drive (consult driver configuration for load limits)

• Direction Control: Software-configurable

• Data Transfer Modes: Polled I/O and buffered modes

• Triggering: VXI TTL trigger bus support

• Interface: VXI backplane

Application Use Cases

• UUT digital control lines

• Status monitoring

• Handshake signals

• Relay control (with external interface hardware)

• Parallel digital test sequencing

• Embedded system verification

System Integration

Both modules are designed for installation in a VXI mainframe chassis and operate within the VXIbus architecture. They support synchronized triggering, shared timing, and coordinated test execution across other VXI instrumentation modules.

This configuration is particularly useful in:

• Aerospace avionics test benches

• Military electronics validation

• Industrial control system testing

• Semiconductor validation systems

• Automated production test racks

Why This Combination Is Valuable

Many VXI test systems require both:

• Precision analog waveform capture

• High-channel-count digital control

Purchasing these modules together provides a compact, synchronized mixed-signal solution that reduces system complexity while maintaining deterministic timing and VXI backplane integration.