Specifications
MAINTENANCE and SERVICE
can be disabled at slow sample rates, so there is no lag time between sampling and data
availability. The 16-bit interface further reduces software overhead by enabling all 16
A/D bits to be read in a single instruction, instead of requiring 2 8-bit read operations.
The net result of this streamlined design is that the ADIO board supports gap-free A/D
sampling at rates up to 200,000 samples per second, twice as fast as our previous
boards.
5.6.2.7 Specifications
Analog Inputs
Number of inputs
32 single-ended, 16 differential, or
16 SE + 8 DI; user selectable
A/D resolution 16 bits (1/65,536 of full scale)
Bipolar ranges ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V
Unipolar ranges
0-10V, 0-5V, 0-2.5V, 0-1.25V, 0-
.625V,
Input bias current 100pA max
Overvoltage
protection
±35V on any analog input without
damage
Nonlinearity ±3LSB, no missing codes
Conversion rate 200,000 samples/sec.max
On-board FIFO 1K x 8(512 16-bit samples)
Calibration Automatic;values stored in EEPROM
Analog Outputs
Number of outputs 4
D/A resolution 12 bits (1/4096 of full scale)
Output ranges ±5, ±10, 0-5, 0-10
Output current ±5mA max per channel
Settling time 6µS max to 0.01%
Relative accuracy ±1 LSB
Nonlinearity ±1 LSB, monotonic
Reset All channels reset to OV
Calibration
Automatic; values stored in
EEPROM
Digital I/O
Main I/O 24 programmable I/O
Input current ±1µA max
Output current
Logic 0
64mA max per line
Logic 1
-15mA max per line
Auxilary I/O 4 inputs, 4 outputs, optional use as
Rosemount Analytical µCEM Continuous Analyzer Transmitter 5-12