Filter
Top Products
Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 77
Specifications
These specifications for the E1538A reflect its performance while installed
on your VXI module.
General Specifications
Output Characteristics
Characteristic Pull-Up Off Pull-Up On (10K to Vcc)
current source (logic 1) 0 .38mA @ 1.2V
current sink (logic 0)
Voltage (logic 1)
Voltage (logic 0)
100 mA
0
0.5 Max sinking 100mA
0.1 Max sinking 20mA
100 mA
5V (no load)
0.5 Max sinking 100mA
0.1 Max sinking 20mA
Input Characteristics
(VRS OFF for Chs0&1)
Characteristic Pull-Up Off Pull-Up On (10K to Vcc)
Equivalent circuit
Maximum input low
Minimum input high
120K conn. to 0 Volts
programmable from
-46 to 46 Volts (±0.5V)
9.2KΩ conn. to 4.6 Volts
programmable from
-46 to 46 Volts (±0.5V)
Input Isolation
No Isolation Provided
Cross-Talk Between Channels
A large signal on one channel has an effect on the accuracy of frequency measured on
other channels as follows:
Sine-wave interfering signal up to 70Vpp No degradation of specification
Square-wave Interfering signal <63Vpp No degradation of specification
Square-wave Interfering signal >63Vpp to
70Vpp
Minimum input amplitude changes from 15mV
to 18mV for frequency range of 1Hz to 10Khz
(see Input Signal Characteristics spec.)
Maximum voltage applied to any
input terminal
-48 Volts to 48 Volts
Maximum voltage applied to any
output terminal
0 - 48 Volts (outputs are diode clamped at -0.3V)