The IC697VAL314 delivers precision analog output capability for VMEbus-based control systems, featuring fully isolated channels that protect against ground loops and electrical noise. This 6U form factor board offers either four or eight output channels, each electrically isolated from all others and from the VMEbus with up to 1500V withstand voltage. Users can select voltage output ranges such as split-range ±2.5V, ±5V, ±10V, or unipolar options from 0 to +10V. For current loop applications, the IC697VAL314 supports 4–20mA, 0–20mA, or 5–25mA outputs. Its 0.08% accuracy, optical data coupling, and programmable output disconnect features make this board an excellent choice for nuclear instrumentation, automatic test equipment, supervisory control systems, and high-interference industrial environments.
The IC697VAL314 provides 12-bit resolution across all output channels, with differential configuration ensuring signal integrity. Common mode voltage (CMV) range reaches ±1500V between channels and between channels and the VMEbus, delivering exceptional noise immunity. Isolation resistance measures 50MΩ, while isolation capacitance stays at 100pF channel-to-channel and 150pF channel-to-VMEbus. The board withstands 1500Vpk (1050V RMS) without breakdown. For voltage outputs, the IC697VAL314 offers jumper-selectable ranges including split-range ±2.5V, ±5V, ±10V, and unipolar 0 to +2.5V, +5V, or +10V. Each output drives up to ±10mA across the full ±10V dynamic range, with output impedance below 0.8Ω in connected mode and above 1MΩ when disconnected.
Precision remains a core strength of the IC697VAL314. Gain error stays within ±0.08% maximum, while voltage offset measures only ±4mV. Integral nonlinearity reaches 0.025% maximum when referenced to the best-fit straight line, ensuring linear output response across the entire range. For long-term stability, gain drift is specified at ±60 PPM/°C and ±150 PPM per 1000 hours. Offset voltage drift holds at ±275 μV/°C and ±500 μV per 1000 hours. These specifications make the IC697VAL314 suitable for applications requiring consistent, repeatable analog outputs over extended periods, such as process control loops and precision test systems.
Control of the IC697VAL314 is managed through the Control and Data Register group, which can be positioned on any 16-word boundary in either the short I/O (A16) space or the standard (A24) memory space. For board selection, short I/O address bits A05–A15 or standard address bits A05–A23 are compared with field-configurable jumpers, providing flexible addressing options. Address modifiers are decoded to support supervisory access, user access, or both simultaneously. The board fully complies with VMEbus Specification ANSI/IEEE STD 1984-1987 IEC 821 and 297, ensuring compatibility with a wide range of VMEbus backplanes and host controllers. Additionally, the IC697VAL314 includes static readback data registers that simplify program control by allowing the CPU to verify output values without additional hardware measurements.
The IC697VAL314 incorporates several advanced features that enhance system reliability and testability. A program-controlled connect/disconnect function for voltage outputs allows system testing without physically removing wiring, saving time during commissioning and maintenance. Voltage outputs are protected up to ±20V continuously and can withstand transients up to ±50V, guarding against accidental wiring errors or external fault conditions. Optical data coupling provides full galvanic isolation between the VMEbus and the output circuits, preserving signal purity in electrically noisy environments. The board accepts pluggable barrier strip cable connectors with user screw interfaces, and latching connectors are provided for secure wiring retention.
This board excels in demanding scenarios where signal isolation and accuracy are paramount. For instance, in nuclear facility instrumentation, the IC697VAL314 safely transmits control signals across hazardous boundaries while maintaining isolation. In automatic test equipment (ATE), its accurate voltage and current outputs stimulate devices under test with confidence. For supervisory control systems, the board provides reliable analog setpoints to remote field devices. Furthermore, high-interference environments benefit from the board's 1500V isolation, which eliminates ground loops and common mode noise that typically degrade analog signals. The IC697VAL314 also serves effectively for intersystem analog data transmission, where multiple systems must share analog information without electrical coupling.
Installing the IC697VAL314 follows standard VMEbus practices. First, ensure that the backplane power is turned off before handling the board. Next, select an available 6U VMEbus slot and carefully slide the board into the card guides until it seats firmly against the backplane connector. Secure the board using the front panel retaining screws. Then, configure the jumper settings for your desired voltage ranges and addressing scheme. Connect field wiring to the pluggable barrier strip connector, using the user screw interface for reliable terminations. For current loop outputs, select the appropriate range (4–20mA, 0–20mA, or 5–25mA) according to your application requirements. Finally, reapply power and verify the board initializes correctly through the system software. The IC697VAL314 automatically communicates with the VMEbus controller once the addressing is properly configured.
1 × IC697VAL314 Isolated Analog Output Board (4 or 8 channels as ordered)
1 × Pluggable barrier strip cable connector (pre-installed)
1 × Product identification and jumper configuration sheet
1 × Anti-static protective packaging bag
Shipping via FedEx, UPS, or DHL (with full tracking information)
1. What channel configurations are available for the IC697VAL314?
The IC697VAL314 is offered in either four-channel or eight-channel versions, with full isolation between every channel and from the VMEbus.
2. Which output voltage ranges can I select with this board?
You can select split-range ±2.5V, ±5V, ±10V, or unipolar 0 to +2.5V, +5V, and +10V via on-board jumpers on the IC697VAL314.
3. Does this board support current loop outputs?
Yes, the IC697VAL314 supports 4–20mA, 0–20mA, or 5–25mA current loop outputs in addition to its voltage output capabilities.
4. What is the purpose of the programmable disconnect feature?
The program-controlled connect/disconnect function on the IC697VAL314 allows system testing and calibration without physically disconnecting field wiring.
5. Is this board compatible with standard VMEbus systems?
Absolutely, the IC697VAL314 fully complies with VMEbus Specification ANSI/IEEE STD 1984-1987 IEC 821 and 297 for broad compatibility.
| Brand Name | |
| Model No. | IC697VAL314 |
| Product Type | Analog Output Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
