Level/Pulse Performance Characteristics Level specifications are valid after a 30 ns typical settling time.
 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 ¡Ó (3% + 75 mV)
1 kΩ into 50 Ω ¡Ó (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. ¡Ó 1%
Max. external voltage ¡Ó 24 V
Short circuit current ¡Ó400 mA max.
Base line noise 10 mV RMS typ.
Overshoot/preshoot/ringing ¡Ó 5% of amplitude ¡Ó 20 mV
[1] In ¡Ó19 V level window.

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 ¡Ú 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 determined 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: ¡Ó15 Vpp
Sensitivity: ≤300 mVpp typical
Input transitions: <100 ns
Frequency: Dc to 50 MHz
Minimum pulsewidth: 10 ns
Strobe output and trigger output
Strobe: Marks the beginning of each burst
Trigger format: One pulse per period with 50% duty cycle typical
External mode: 9 ns typical
Level: TTL or ECL selectable
Output impedance: 50 Ω typical
Max. external voltage: -2 V/+7 V
Transition times: 1.0 ns typical for TTL, 600 ps typical for ECL
User Interface
Overprogramming: Values can be entered, exceeding the specified range, to fully exploit the hardware limits

Setting check:

¡@

Warning messages indicate potentially conflicting parameters due to inaccuracy. Error
messages indicate conflicting parameters.

Help key: Displays a context sensitive message.
Autoset key: Resolves all timing conflicts.

Non-volatile memory:

¡@

The current setting is saved on power-down. Up to nine user settings and one fixed default
setting are stored in the instrument.

Memory card: 99 settings can be stored on a 1 MB PCMCIA card (MS-DOS).
Remote Control: Operates according to IEEE standard 488.2, 1987 and SCPI 1992.0
Function Code: SH1,AH1,T6,L4,SR1, RL1,PP0,DC1,DT1,C0
Programming times: All checks and display off
ASCII command Typical exec. time
One parameter or mode 30 ms typical
Recall setting 250 ms typical
Typical delay times Agilent 81101A
Instrument mode From To Typical value
External width EXT. INPUT STROBE/TRIGGER OUT 8.5 ns
¡@ ¡@ OUTPUT 1/OUTPUT 2 22.5 ns
All other modes EXT. INPUT/CLK INPUT STROBE/TRIGGER OUT 12.0 ns
¡@ ¡@ OUTPUT 1/OUTPUT 2 29 ns
¡@ STROBE/TRIGGER OUT OUTPUT 1/OUTPUT 2 17 ns
General
Operating temperature: 0¢XC to +55¢XC
Storage temperature: -40¢XC to +70¢XC
Humidity: 95% r.h. up to 40¢XC ambient temperature
EMC: Conforms to EN50082-1, EN55011, Class B
Noise emission: 5.7 bel typical
Battery: Lithium CR2477-N
Safety: IEC1010, CSA1010
Power requirements: 100-240 Volts ac, ¡Ó 10%, 50-60 Hz
100-120 Volts ac, ¡Ó 10%, 400 Hz
Power consumption: 300 VA max.
Max. dimensions (H x W x D): 89 mm x 426 mm x 521 mm
Weight: 9.2 kg net, 13.8 kg shipping
Recalibration period: One year recommended
Warranty: Three years standard

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