Appendix a: specifications – Sensoray 425 User Manual
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Sensoray Model 425 Instruction Manual
Appendix A: Specifications
General
Limits
Interface
Parameter
Description
Bus
Type
ISA, I/O slave, 16-bit address, 16-bit data
Address requirements
64-address block, starting on any 64-address boundary
Interrupt level
Jumper selectable to any one IRQ level: 3-7, 9-12, 14, 15
Encoder
Type
Quadrature encoded, single-ended
Input characteristics
RS422 differential, single-ended TTL/CMOS compatible
Relay
Input characteristics
TTL/CMOS compatible, 10Kohm pullup to +5V
A/D
A/D type
12-bits, successive approximation, resistor programmed gain
D/A
D/A type
12 bits, voltage output, output range fixed at 0 to +10V
Parameter
Typical
Min
Max
Units
Watchdog
Timeout (Fast mode)
700
630
770
msec
Timeout (Slow mode)
11.2
10.0
12.4
sec
Encoders
Pulse rate
0
375
KHz
Supply current, per chan.
100
mA
Relays
Output sink current
100
mA
Captured pulse width
200
ns
A/D
DNL
-1
+1
LSB
INL
-1
+1
LSB
T
SETTLE
to 12 bits (G = 1)
5
9
us
T
CONVERT
10
us
CMRR (G = 1)
90
73
dB
CMV for spec’d accuracy
-10
+10
V
Input limits (abs. max.)
-25
+25
V
Offset error
-1
+1
LSB
Input Z
10
Mohm
D/A
Gain error
-3
+3
LSB
Output offset
-7.5
+7.5
mV
Output Z (chan 1, 2 & 3)
85
ohms
Power
Operating range
+4.75
+5.25
V
Quiescent current
200
mA
Temperature
Operating range
0
70
ºC