User`s guide

336
Chapter 8 Specifications
Module Specifications
Module Specifications
34907A
[1] Limited to 40 mA total for all three slots (six DAC channels)
Digital Input/Output
Port 1, 2:
Vin(L):
Vin (H):
Vout(L):
Vout(H)
Vin(H) Max:
Alarming:
Speed
Latency
Read/Write Speed:
8 Bit, input or output, non-isolated
< 0.8V (TTL)
> 2.0V (TTL)
< 0.8V @ Iout = -400 mA
> 2.4V @ Iout = 1 mA
<42V with external open drain pull-up
Maskable pattern match or state change
4 ms (max) alarm sampling
5 ms (typical) to 34970A/34972A alarm
output
95/s
Totalize Input
Maximum Count:
Totalize Input:
Signal Level:
Threshold:
Gate Input:
County Reset:
Read Speed:
2
26
- 1 (67,108,863)
100 kHz (max), rising or falling edge,
programmable
1 Vp-p (min)
42 Vpk (max)
0V or TTL, jumper selectable
TTL-HI, TTL-LO, or none
Manual or Read+Reset
85/s
Analog Voltage (DAC) Output
DAC 1, 2:
Resolution:
Iout:
Settling Time:
Accuracy:
1 year ±5 °C
Temp Coefficient:
±12V, non-isolated (earth referenced)
1 mV
10 mA max
[1]
1 ms to 0.01% of output
±(% of output + mV)
0.25% + 20 mV
±(0.015% + 1 mV) / °C
34970A Refresh UG.book Page 336 Wednesday, February 17, 2010 12:34 PM