| Input channels: 32 independent single-ended
channels or 16 independent differential channels. |
| A/D converter:12 bit industry standard
Analog Devices A/D 1674. On chip Sample & Hold. |
| Sampling speed:Programmable sampling
speeds: 12.5, 25, 50 and 100 Ksps. |
| DC Unipolar range: 0-5V, 0-10V, 0-50V,
0-100V. |
| DC Bipolar range:±2.5V, ±5V,
±10V, ±25V, ±50V, ±100V. |
| AC ranges: 0-5V, 0-10V, 0-50V, 0-100V. |
| Ranges in mA DC: 0-50 mA (0-20 mA, 4-20
mA). |
| Input attenuators: A 10:1 voltage
attenuator is available in board version /2. It must be connected to operate
with input ranges above 10 V. |
| Input protection:All analog inputs are
protected against external over voltages up to 120 VDC. |
| Dual port RAM: 4 KB of dual port SRAM, 16
bits wide. The on board multiplexing/conversion circuitry fills data buffers in
RAM with 16/32 or 2048 word size. |
| Sampling cycles:All channels are converted
and stored in RAM thus freeing the master CPU. |
| Control Register:Defines the RAM storage
buffer size, enables/disables VMEbus interrupts, programs the A/D sampling rate
and activates the Built-In-Test circuitry. |
| Built-In-Test: BIT is based on two voltage
references and dedicated relays distributed in such a way as to allow testing
all on board analog and TTL devices. |
| Accuracy:0.05% for non attenuated input
ranges. 0.2% for attenuated input ranges. |
| Signal bandwidth: DC to 50 KHz. |
| Input impedance: 470 K? default. Up to 5
M? optional. |
| VMEbus access time: 300 nsec. per RAM word
transfer. |
| VMEbus Interrupter: I(2-7). Indicates SRAM
buffer filled with last converted data. |
| VMEbus Interface: A24/D16 Standard slave
interface. |
| VME Addressing:Two jumper blocks provide
256 mapping options in the A24 range. |
| Power consumption: +5VDC @ 350 mA. +12 VDC
@ 135 mA. |
| Weight: 570 gr. C & I ver.; 770 gr. R+
& 883 ver. |
| Mechanical size: Single slot 6U (233.4x160
mm.). |
Mechanical format:
CM-AD-45/A Classic IEC-297 mechanics for 19 inch racks with I/O on front
panel.
CM-AD-45/B Military IEEE P1101.2 wedge-lock mechanics for ATR
enclosures. |
| Humidity: Up to 95% RH non-condensing. |
| Altitude: Sea level up to 15 Km (50,000
ft.). |
| q |
-55 to +125 ºC ceramic
military ICs. |
q |
MIL-STD-810 E Temperature
|
| q |
MIL-STD-883 Analog and TTL
chips. |
|
(Methods 501.3 & 502.3).
|
| q |
MIL-C-55302 Class I
Connectors. |
q |
MIL-STD-810 E Shock and
Vibration |
| q |
MIL-R-39016 BIT Relays in 883
version. |
|
(Methods 516.4 &
514.4). |
| q |
No signal PCB tracks in external
layers. |
q |
MIL-STD-810 E Humidity & Salt
Fog |
| q |
MIL-E-5400 for avionics equipment
class 1B |
|
(Methods 507.3 & 509.3).
|
|
(Temperature and Altitude).
|
q |
Military Class V Printed Circuit
Board. |
| |
|
|
|
TECHNICAL SPECIFICATIONS
