GE VMIVME-3126 High Resolution Isolated Analog to Digital Converter Board

Isolation mode suppression: 160 dB at 60 Hz and Fc=1 Hz.

Overvoltage protection: ± 25 V wire to wire.

RTD excitation (software control per channel): typical 20 PPM/° C, maximum 20%.

Open circuit sensor detection (controlled by software for each channel): It functions normally in all ranges below ± 1 V (0-1 V).

Channel protection: Active output with unity gain and 1 k Ω source impedance.

Current terminal resistance: see the available options section.

Transmission characteristics

Transfer function: E IN=E LO+[E fsr × 65536N ADC], where E IN is the channel input voltage, E LO

For the lower limit of the input range, E fsr is the full-scale input range, and N ADC is the output code.

Resolution: 16 bits.

Input sampling: All inputs are sampled simultaneously.

Integral nonlinearity: maximum ± 0.005% compared to the optimal straight line.

Channel sampling rate: 100 SPS per channel, total 1600 SPS.

Data encoding: Software programmable, binary complement or straight/offset binary.

Data buffer memory

Buffer size: 16 consecutive 16 bit data words.

Access time: 400 ns from DS to DTACK.

VMEbus access: D8 or D16.

Available options (see ordering options)

Number of input channels: 8 or 16 2-wire channels.

Current terminal resistor: a resistor placed at both ends of the input, with a maximum continuous input current of 25 mA (calibrated input specified in current units rather than voltage units).

Increase input range: The input structure can handle an input range of up to ± 200 VDC.

Physical/Environmental Characteristics

Temperature range: working (standard VME slot) 0 to+65 ° C, storage -40 to+85 ° C.

Humidity: 10 to 80% relative humidity, no condensation.

Altitude: Working up to 10000 feet (3048 meters).

Cooling: forced air convection (standard VME slot).

Size: Dual height European card (6U) board, 160 x 233.35mm.

Weight: Maximum 700 g.

Input connectors: Two 64 pin DIN connectors.

Connector data

Recommended style for connecting components P3 and P4 I/O connectors

64 pin, compatible connector (96 pin discrete) AMP 925486-1*

Discrete line, female pressure contact point (64 pin discrete) AMP 530151-6**

(64 pin connector) connector housing Harting 09 02 064 0501

Note: * The middle row is not connected; **AMP crimping tool part number 90301-2.

Power requirements

+5 VDC (± 5%), maximum 2.8 A.

Mean Time Between Failures (MTBF)

97850 hours (217F).