Product Introduction

The VMIVME-4116 digital-to-analog converter (DAC) board performs digital-to-analog conversion on 16-bit true offset binary or twos complement words with an analog output range of -10 to +10 V. This provides 305 µV resolution for each digital input for a 1 LSB change. The buffered output voltage settles to within 1/2 LSB in 10 µs. The DAC provides a digital-to-analog integrated circuit (IC) for each channel. The control and status register (CSR) is loaded by the processor, which controls the functionality of the board. The processor can read the CSR at any time. The functional block diagram of the VMIVME-4116 board is shown in Figure 1. Each of the eight DACs is preceded by a double buffered data latch. The data latch allows the DAC analog output to be updated in a variety of ways.

Analog Output Specifications
Resolution: It provides excellent resolution and is able to convert digital signals to analog voltages with high accuracy. High resolution capabilities are critical for applications that require fine control of analog signals. For example, in precision manufacturing processes, it can precisely control the voltage supplied to a servo motor for accurate positioning.
Output Range: The -10V to +10V output range provides flexibility for powering a wide range of analog devices. This range is useful for applications such as driving audio amplifiers, where different voltage levels are required to control the amplitude of the output signal.
Stability: The buffer output voltage is stable within 10μs to 1/2LSB (least significant bit). This fast settling time ensures that the output analog signal quickly reaches and maintains the desired value, minimizing fluctuations and errors. This stability feature is important in a laboratory environment when experiments such as electrochemical measurements require precise and stable voltage signals.
Connections and Interfaces
Output Connectors: High-reliability DIN-type output connectors ensure stable signal transmission and reliable connections. These connectors are designed to withstand harsh industrial environments such as factory floors where vibration, dust, and temperature fluctuations may be present. They provide a secure connection for the output lines that transmit the analog signal to the end-user - the user's device.
Test Interface: The P2 connector on the board has multiple programmable outputs for testing the analog outputs. This self-test feature simplifies the process of verifying the functionality of the board during installation, maintenance, or troubleshooting. Engineers can use this test interface to quickly identify any potential problems with the analog output channels without the need for complex external test equipment.

Overall Applications and Benefits
GE VMIVME - 4116 Resolution Analog Output Board is widely used in a variety of fields, including industrial automation, process control, and test and measurement. It combines high-resolution analog output, flexible data control, and reliable connectivity, making it a valuable tool for engineers and technicians who need to generate precise and stable analog signals in their systems.

Product Details
• 8 channels
• 16-bit DAC
• Fast settling: 10 µs maximum to ±0.003% of FSR
• Buffered voltage output (±10 V at 5 mA)
• Multiplexed programmable outputs on P2 connector for testing analog outputs

• Double-buffered data latches

• Jumper-selectable synchronous update control

• Optional external update control input or software-controlled strobe provides single update strobe for all DAC outputs

• Front-panel fault LED

• High-reliability DIN-style output connector

• Outputs set to 0.0 V at power-up — outputs automatically disconnect from field at power-up

• Dual Eurocard form factor

• Supports VMIC’s analog expansion and built-in test bus (AMXbus™) that connects various VMIC ADC and DAC boards and the P2 connector of the expansion multiplexer board

• Multiplexed Programmable Outputs for Testing Analog Input Multiplexer Boards - Requires VMIC ADC Board and AMXbus for Built-in Test

Technical Features

8-Channel 16-Bit DAC:

Provides eight independent 16-bit Digital-to-Analog Converters (DACs), each with high accuracy and fast settling time.

Resolution up to 305µV (analog voltage value per LSB change).

High Accuracy and Fast Settling Time:

The output voltage of the DAC settles to within ±0.003% of the Full Scale Range (FSR) in 10µs.

Buffered output voltage range is ±10V at 5mA.

Programmable Outputs and Multiplexing:

Multiplexed programmable outputs are provided on the P2 connector for testing analog outputs.

Supports a variety of output configurations and programming options, easily customized to meet actual requirements.

Double-buffered data latches:

Double-buffered data latches are provided on the front end of each DAC, allowing the analog output of the DAC to be updated in a flexible manner.

Jumper-selectable synchronous update control and optional external update control input are provided.

Front panel fault LED:

Front panel fault LED indicates if there is a board fault.

High reliability DIN-type output connector is provided.

VMEbus compatible:

Compatible with VMEbus specification, supporting short I/O access.

Address modification bits are jumper-selectable to support non-privileged short I/O or monitored short I/O access.

Scalability and integration:

Supports VMIC's analog expansion and built-in test bus (AMXbus), allowing interconnection of various VMIC ADC and DAC boards and expansion multiplexer boards.

Can be combined with other VME modules to achieve more complex system functions.

C.VMIVME-4116 analog output board is widely used in various industrial automation fields that require high-precision analog output, including but not limited to:

Process control: used for precise control of various equipment and sensors on factory production lines.

Data acquisition and analysis: collect and analyze analog signals in the production process, such as temperature, pressure, flow, etc.

Test and measurement: used to test and measure analog output signals in the system to ensure the accuracy and stability of the system.

Industrial automation system integration: integrated with other automation equipment and systems, such as PLC, DCS, etc., to achieve more efficient production and management.

Product advantages

High precision and fast response: provide high-precision and fast-established analog output to meet various high-precision application requirements.

Flexibility and programmability: supports a variety of output configurations and programming options, which is convenient for users to customize and expand according to actual needs.

High reliability and stability: using high-quality materials and manufacturing processes to ensure stable operation in harsh industrial environments.

Compatibility and integration: compatible with VMEbus specifications, easy to connect and integrate with other VMEbus devices.

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