3
Level parameters:
Can be entered as voltage or current,
as high and low level, or as offset and
amplitude.
Load compensation:
The actual load value can be entered
(for loads ≠ 50 Ω) to display actual
output values.
On/off:
Relays connect/disconnect output
(HiZ).
Normal/complement:
Selectable
Limit:
Programmable high and low levels
can be limited to protect the device-
under-test.
Trigger Modes
Continuous:
Continuous pulses, double pulses,
or bursts (single or double pulses).
External triggered:
Each active input transition (rising,
falling or both) generates a single or
double pulse or burst.
External gated:
The active input level (high or low)
enables pulses, double pulses, or
bursts. The last single/double pulse
or burst is always completed.
External width:
The pulse shape can be recovered,
while period and width of an external
input signal are maintained. Levels
and transitions can be set.
Manual:
Simulates an external input signal.
Internal triggered:
Internal PLL replaces an external
trigger source.
Inputs and Outputs
Clock input/PLL reference and external
input: One input (BNC connector at
rear panel) is used for clock input or
alternatively for the PLL.
PLL Reference: The internal PLL is
locked to an external 5 MHz or 10 MHz
reference frequency.
Clock input: The output period is deter-
mined by the signal at CLK input
Ext. input: Used for trigger, gate, or
external width.
Input impedance: 50 Ω/10 kΩ selectable
Threshold: -10 V to +10 V
Max. input voltage: ±15 Vpp
Sensitivity: ≤300 mVpp typical
Input transitions: <100 ns
Frequency: Dc to 50 MHz
Minimum pulsewidth: 10 ns
Level/Pulse Performance Characteristics
Level specifications are valid after a 30 ns typical settling time.
Agilent 81101A
Amplitude 50 Ω into 50 Ω 100 mVpp to 10.0 Vpp
1 kΩ into 50 Ω 200 mVpp to 20.0 Vpp
Level window 50 Ω into 50 Ω -10.0 V to +10.0 V
1 kΩ into 50 Ω -20.0 V to +20.0 V
Accuracy 50 Ω into 50 Ω ± (3% + 75 mV)
1 kΩ into 50 Ω ± (3% + 150 mV)
[1]
Resolution 50 Ω into 50 Ω 10 mV
1 kΩ into 50 Ω 20 mV
Output connectors BNC single-ended
Source Impedance Selectable 50 Ω or 1 kΩ
Accuracy Typ. ± 1%
Max. external voltage ± 24 V
Short circuit current ±400 mA max.
Base line noise 10 mV RMS typ.
Overshoot/preshoot/ringing ± 5% of amplitude ± 20 mV
[1] In ±19 V level window.
(28 pagine)
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