34959A Datasheet, PDF (23/35 Pages) Keysight Technologies – Multifunction Switch/Measure Unit

23 | Keysight | 34980A Multifunction Switch/Measure Unit - Data Sheet
34952A multifunction module
with 32-bit DIO, 2-channel D/A
and totalizer
The multifunction module offers the
lexibility you need for system control.
The 34952A has four 8-bit digital I/O
channels, a 100- kHz gated totalizer, and
two ± 12 V analog outputs—all on a single
earth-referenced module. The digital
inputs and totalizer input may be included
in a scan list. Alarm limits for the digital
and totalizer inputs are evaluated con-
tinuously, capturing and logging alarm
conditions even between scans. Connec-
tions can be made via standard 50-pin
Dsub cables or detachable terminal block.
The 34952T terminal block has a pinout for
connection to an external Opto 22 board.
Digital input/output characteristics
Four 8-bits channels, 8 bits wide, input or
output, non-isolated
Vin(L)
< 0.8 V (TTL)
Vin(H)
> 2.0 V (TTL)
Vout(L)
Vout(H)
Vin(H) max
< 0.8 V @ Iout = -400 mA
per output
> 2.4 V @ Iout = 1 mA
< 42 V with external open
drain pull-up
Alarm
Speed
Latency
Maskable pattern match or
state change
4 ms (max) alarm sampling
5 ms (typical) to 34980A
alarm output
Read/write speed 95/s
Totalize input characteristics
Max count
Totalize input
Signal level
2²⁶ - 1
100 kHz (max) rising or
falling edge, program-
mable
1 Vp-p (min) 42 Vpk (max)
Threshold
0 V or TTL
Gate input
TTL-Hi, TTL-Lo, or none
Count reset
Manual or read + reset
Read speed
85 rds/s
Analog output characteristics
DAC 1, 2
± 12 V, non-isolated
Resolution
1 mV
IOUT
Settling time
Accuracy
1 year
Temp. coeficient
10 mA max
1 ms to 0.01% of output
± (% of output + mV)
(0.25% + 20 mV)
± (0.015% + 1mV)/°C
Figure 15. 34952A multifunction module