16 Differential Analog Input Channels
Simultaneous Sample-and-Hold Inputs
16-Bit A/D Converters
High Throughput
The Abaco / VMIC VMIVME-3123/3123A 16-Bit High Throughput Analog Input Module provides 16 high accuracy
differential analog input channels with high throughput 16-bit analog-to-digital (A/D) conversion rates to 1.6 million samples per second.
Each input is equipped with a dedicated sample-and-hold amplifier, a fourth-order antialiasing filter, and a precision 16-bit A/D converter.
Digitized samples are accumulated in a data buffer until retrieved by the system.
Buffer size is software controlled from one sample to 4 million samples.
Accuracy is optimized with the use of correction values for gain and offset that are applied in real-time,
and determined during a host-controlled calibration mode. Calibration can be performed at any time without removing the board from the system.
Calibration uses internal precision voltages (a built-in-test feature) applied to all input channels to determine the correction values.
A test mode as well as the host have access to the voltages for BIT purposes.
• 32 analog output channels
— 12-bit D/A converter
— One S&H for output
— Output short circuit and transient protected
— Unipolar (0 to 10 V, 0 to +5 V) or bipolar (±2.5, ±5, ±10 V)
— Program-selectable scan rates provide improved response for complex
output functions
— 10 mA outputs
— Program-controlled online and offline operating modes
• Built-in-Test on-board
— Tests 100 percent of active components
— Effective in both online and offline modes
— On-board self-test multiplexer and A/D converter
• Semiconductor output switches do not compromise accuracy
• 0.1 Ω output impedance
• On-board ±15 V DC-to-DC conversion
• Front panel activity LED
ANALOG OUTPUTS
Number of Output Channels:
Thirty-Two: One S&H per channel
Full-Scale Analog Output
(Jumper-Selectable):
Unipolar: 0 to +10 V, 0 to +5 V
Bipolar: ±2.5 V, ±5.0 V, ±10.0 V
Analog Output Code: The 12-bit digital-to-analog
converter (DAC) accepts digital codes in straight
binary, offset binary, or two’s complement
Output Load Current: ±10 mA, over the entire
output voltage range of ±10 V
Resolution: 12 bits
Output Impedance: <0.1 Ω, online
>10 MΩ, offline
Total Error: ±0.05 percent of full-scale range
Maximum Settling Time to 1 LSB: 3.4 ms
FUNCTIONAL CHARACTERISTICS
VMEbus Compliance: The analog output board is a standard double height printed circuit board which is compatible with the VMEbus specification (Rev. C.1).
VMEbus A16:D16
Board Address: The physical address for the board
may be selected by on-board jumpers. VMEbus address
lines A07 through A15 are decoded for board selection.
VMEbus Access: Address modifier bits are
jumper-selected and decoded to support both
nonprivileged short I/O, supervisory short I/O, or both.
The board is factory-configured for supervisory short I/O.
We have the same series of models in stock. If you don't find the model you need, please contact us and we will provide you with an official quotation!
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