Boards Home > ISA Bus Data Acquisition Boards-Multi-Function Boards A-821PG
16-channel 12-bit 45KS/s multi-function board
» Features
■ 12-bit A/D converter
■ 45 KS/s sampling rates
■ 16 single-ended or 8 differential analog inputs
■ A/D Trigger modes: Software Trigger, Pacer Trigger
■ A/D data transfer modes: polling, interrupt
■ Software programmable gain :
1, 10, 100, 1000 (A-821PGH);1, 2, 4, 8 (A-821PGL)
■ Bipolar analog input
■ One 12-bit analog output channels
■ Interrupt handling
■ 16 digital inputs & 16 digital outputs
» Functional Description
The A-821PGH/L (H for high gain; L for low gain) are 12-bit multi-function analog and digital I/O boards for the PC/ AT compatible computer.
The A-821PGH/A-821PGL offers 16-channel single-ended or 8-channel differential analog input, one channel analog output with 12-bit resolution, 16-channel digital input, 16-channel digital output.
It has a maximum sampling rate of 45K samples/s.
» Applications
● Laboratory automation
● Sensor interface
● Production test
» Specifications Analog input
● Number of channels : 16 single-ended or 8 differential
● Resolution : 12-bit
● Conversion rate : 45KS/s max
● Input impedance : 10,000 MΩ II 6pF
● Over voltage protection : ±35V
● Accuracy : 0.01% of reading ±1 bit
● Zero drift : ±25ppm/ °C of F.S. max PGL Input Range
Gain
Bipolar(V)
Throughput
1
±5V
45KS/s
2
±2.5
45KS/s
4
±1.25
45KS/s
8
±0.625V
45KS/s
PGH Input Range
Gain
Bipolar(V)
Throughput
1
±5V
45KS/s
10
±0.5
45KS/s
100
±0.05
10KS/s
1000
±0.005V
1KS/s
Analog Output
● Number of channels : 1 independent
● Type : 12-bit double buffered (AD-7948)
● Linearity : ±1/2-bit
● Output range : 0~5V, 0~10V
● Output driving : ±5 mA
● Settling time : 0.6μs to 0.01% for full scale step Digital I/O
● 16 TTL-level input
● Input low VIL = 0.8V max; IIL =-0.4 mA max
● Input high VIH = 2.0V min; IIH = 20μA max
● 16 TTL-level output
● Output low VOL = 0.5V max; @IOL =8 mA max
● Output high VOH = 2.7V min; @IOH =0.4 mA max Timer/Counter
● Number of channels : 1
● Resolution : 16-bit
● Compatibility : 5V/TTL
● Internal clock : 2MHz
● External clock : up to 10 MHz
● A/D pacer : cascaded 32-bit counter
● Programmable internal timer : 0.0047Hz~0.5MNz
» General Specifications
● I/O connector : one 37-pin D-Sub female
two 20-pin ribbon male
● Power requirements :
Device
+5V
+12V
-12V
A-821PG
320 mA
60 mA
30 mA
● Operating temperature : 0°C ~ 60°C
● Operating humidity : 0% ~ 90 % non-condensing
● Storage temperature : -20°C ~ 70°C
● Dimensions : 170 mm x 122 mm
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PIN View
