Agilent 8112A Data Sheet

PULSE GENERATORS

Programmable Low Cost Pulse Generator

Model 8112A

Full pulse capability
Modulation
Ramps and haversines

HP

8112A

The HP 8112A is a fully programmable 50 MHz pulse generator
with 5 ns transitions and 32 Vpp (into open circuit) max output am­plitude. All pulse parameters are variable including delay and double
pulse spacing.

Besides the comprehensive trigger modes, external modulation ca­pabilities extend applicability. 3-level signals and upper level, width,
period and delay-modulated signals are available. These can be com­bined with the trigger modes so that complex real-life signals like
modulated bursts are simulated easily.

Step response and trigger hysteresis measurements require fast
transitions or sawtooth signals as obtained in the HP 8112A's linear
transition mode—either fixed 5 ns or variable from 6.5 ns. The new
cosine transitions, also variable from 6.5 ns, mean that band-filtered
signals are now just as simple to obtain.

Sensitive devices are protected by programming output limits and
the upper level can be controlled by the device supply. Also, constant
energy or constant width can be programmed.

Dual channel operation is feasible by operating HP 8112A's in a
master/slave combination.

For really easy operation a green button gives error-free settings. A
new softkey operating concept plus detailed error recognition make
the HP 8112A's powerful versatility easy to handle.

Specifications

Specifications apply with 50-ohm load, and temperatures in the range
0°C to 55°C.

Period: 20.0 ns to 950 ms.
Delay: 75.0 ns to 950 ms.
Double pulse: 20.0 ns to 950 ms.
Width: 10.0 ns to 950 ms.
Accuracy: ± 5% of progr value ± 2 ns (delay: ± 4 ns).
Duty cycle: 1% to 99% (Min: 10 ns. Max: period -10 ns).

Accuracy: ± 10% of progr value.
circuit)

Levels

High level: -7.90 V to 8.00 V.
Low level: -8.00 V to 7.90 V.

(specifications apply for min transition times)

(voltages double when driving into open

Width/duty cycle
Device protection
Error recognition and self test

Accuracy: ± 1% of progr value ± 3% amplitude ± 40 mV.
Settling time: 100 ns + transition time.

Transition times

Fixed: 5 ns typical
Linear and Cosine: 6.5 ns to 95.0 ms (max edge ratio 1:20 within a

1.5-decade range. Ranges overlap by 0.5 decade).
Accuracy: ± 5% of programmed value ± 2 ns.
Preshoot, overshoot, ringing: ± 5% ± 10 mV (variable transitions),
± 10% ± 10 mV (fixed transitions).

Output resistance: 50 ohm ± 5%.
Operating modes: Normal, Trigger, Gate, Ext Width (pulse resto-

ration), Ext Burst (1 to 1999 pulses).

Period, delay, width covered in 8 non-overlapping decades (max in­put frequency 8 kHz.).
High level: —8 V to +8 V, independent of progr low level (min input
transition 200 µs).

HP-IB: all keys programmable. Learn, status and error reporting ca-

pability. Interface functions: SH1, AH1, T6, L4, SR1, RL1,

PPO, DC1, DT1.

Memory: retains current operating state. 9 store/recall locations; 1

fixed set of parameters.

Repeatability: factor 4 better than accuracy.

Environmental

Storage temperature: -40°C to +65°C.
Operating temperature: 0°C to 55°C.
Humidity: 95% RH, 0°C to 40°C.
Power: 100/120/220/240 V rms; +5%; -10%; 48 to 440 Hz;

120 VA max

Weight: net, 5.9 kg (13 lb). Shipping, 8.0 kg (18 lb).
Size: 89 H x 212.3 W x 450 mm D (3.5" x 8.36" x 17.7").

HP 8112A Programmable Pulse Generator* $6000
Opt. 910 Extra Operating and Service Manual +$49
Opt. W30 Extended Repair Service. See page 725 $150
HP 5061-9701 Bail Handle Kit

HP 5061-9672 Rack Mount Kit (single HP 8112A)

HP 5061-9674 Rack Mount Kit (two instruments)
HP 5061-9694 Lock Link Kit (for use with HP 5061-

9674)