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PT.Ml PULSE INPUT SPECIFICATIONS -
5 2
Input channels: a s&J
Input characteristics: = I
Channel 0 Non-isolated c-0
Sensitivity: 2OOmVmin. at IMHz 4W
Maximum input: 50 VDC or peak AC "CL
Minimum Rise and Fall Time: 5V/sec m
Input Impedance: lOOKohm//1000pF
Channels 1-7 Non-isolated
Logic 0 drive = 1.4mA sink at Logic 1 drive = OmA source at >1.4V
(internal pull up to +5V)
Isolated
Logic 0 drive = IOmA forward current
(+ to -)
Logic 1 drive = <25OuA forward current
Isolation:
Technique: optical, switch selectable on channels 1 thru 7
Channel to Ground: 500V peak max.
Channel to Channel: 500V peak max.
FreqLency Mode:
RANGE* GATE TIME RESOLUTION ACCURACY
8MHz 8.192ms 122Hz 2(0.04% + 122Hz)
?IHZ 16.384ms blHz +(O.O4% + b1Hr)
_ 'Hz 32.768ms 30Hz +.03% + 30Hz)
L'iz 65.536ms 15Hz +(0.03% + 15Hz)
500; Liz 131.072ms 7.5Hz +(0.03% + 7.5Hz)
250ktlz 26:.:44ms 3.7Hz +(0.03% + 3.7Hz)
125kHz 524.288ms 1.9Hz ?0.03% + 1.9Hz)
62.5kHz 1048.57bms 1Hz z(0.03% + 1Hz)
* In isolated mode, maximum input is 2MHz.
Channel 0 maximum input 1MHz.
Pulse Counting Mode:
Maximum Input Pulse Rate: 250kHz with anti-coincidence
Minimum Pulse Width: 2 pseconds
Maximum Count: 65,535 with hardware counter only
4,294,967,304 with csscsdabls software counter
,TR REVISIONS APP. OATE ORN. DATE
Keithley Instruments Inc.
4 RELEASED _ CKD. DATE Cleveland, Ohio 44139
APP. DATE
PARTNUMBER
SPECIFICATIONS SPEC-PIM I