80/81 Function Pulse Generators
Product overview: 80/81 Function Pulse Generators
80 Function generator
Model 80 provides Sweep and FM. In addition, the 80 offers linear and logarithmic sweep functions and external FM. This makes the 80 an extremely versatile low-cost function generator.
81 Pulse/function generator
With programmable pulse period, width, and transition times combined with the function generator features common to the 80 family, the 81 provides an impressive set of capabilities for both analog and digital applications.
Store common setups
Both the 80 and 81 stores 30 complete front panel setups, allowing easy recall of test setups.
Remote operation
Model 80 and 81 include an IEEE-488.2 (GPIB) interface as standard.
Autocalibration optimizes performance
Each model has an autocalibration feature that allows the user to ensure maximum accuracy each time the unit is used.
Specifications: 80/81 Function Pulse Generators
Except as noted, specifications apply to Models 80 and 81 Specifications apply after a 20 minute warmup
Standard Waveforms | |
Standard Waveforms | Sine, triangle, square, positive and negative pulses, and (Model 80 only) dc |
Frequency | |
Range | 10 mHz to 50 MHz |
Resolution | 4 digits |
Accuracy (Continuous Mode) | 10 mHz to 999.9 mHz: ± 3% 1 Hz to 50 MHz: ± 0.1% Jitter: =0.1% ± 50 ps |
Waveform Quality | |
Harmonic Distortion (Sine) | 100 mHz to 1 MHz: < 1% THD 1 MHz to 5 MHz: Max harmonic < -40 dB 5 MHz to 50 MHz: Max harmonic < -21 dB |
Flatness | 10 mHz to 999.9 kHz: ± 1% 1 MHz to 9.999 MHz: ± 2% ± 2% 10 MHz to 50 MHz: -15% |
Triangle and Ramp Linearity | £5 MHz (10% to 90% of Amplitude): > 99% |
Square Rise/Fall Time | (10% to 90% of Amplitude): < 8 ns |
Square Aberrations | < 5% |
Pulse & Ramp (Model 81 Only) | |
Pulse Modes | Symmetrical pulse, positive pulse, negative pulse, and the complement to all pulse waveforms |
Pulse Period | Range: 20 ns to 99.99s Resolution: 4 digits Accuracy and Jitter: As for frequency |
Pulse Width | Range: 10 ns to 999 ms Setting Accuracy: 10 ns to 99.9ns: ± (5% + 2 ns) 100 ns to 999 ms: 3% ± (4% + 2 ns) Resolution: 3 digits Duty Cycle Range: 1% to 80%. Up to 99% using the complement mode 0 to 5V ± 20% produces > 10% pulse width change from pulse width setting PWM Range: dc to 70 kHz Ramp Modes: Positive or negative going ramp |
Ramp Period | Range: 7 µs to 99.99s Resolution: 4 digits |
Ramp Width | Range: 5 µs to 999 ms Setting Accuracy (5µs to 999ms): 3% Resolution: 3 digits Duty Cycle Range: 1% to 80% |
Transition Times | Range: 8 ns to 99.9 ms in six overlapping ranges. Leading and trailing edges are independently programmable Max Ratio between Ranges: 100 to 1 Accuracy: 8 ns to 99 ns: ± (5% + 2 ns) |
Modulation | |
AM and SCM | External 0 to 10V produces 0 to 200% Range: 0 to 200%, reduced to 70% at 1 MHz Bandwidth: dc to 50 kHz |
VCO | Range: 4.7V change produces approx 1000:1 frequency change Bandwidth: dc to 50 kHz |
FM (Model 80 only) | Range: 0 to 0.5V change produces 1% deviation Bandwidth: dc to 50 kHz |
Amplitude | |
Range | Into 501/2: 10 mV to 16 Vp-p Into Open Circuit: 20 mV to 32 Vp-p Resolution: 3 digits Accuracy (at 1 kHz): ± 4 % reading |
DC Offset | |
DC Offset | Offset and amplitude are independently adjustable within two windows: -800 mV to +800 mV -8V to +8V |
Range | ± 800 mV Window: ± 795 mV ± 8V Window: ± 7.95V |
Resolution | 3 digits |
Accuracy (At 1 kHz) | ± 800 mV Window ± (1% of setting + 1% of amplitude + 0.2 mV) ± 8V Window: ± (1% of setting + 1% of amplitude + 2 mV) |
Main Output | |
Modes | Normal (on) or disabled (off) |
Impedance | 50O ± 1% |
Output Protection | Protected against continuous short to chassis ground |
Sync Output | |
Level (Into 50O) | 0 to 1V |
Rise/Fall Time | < 3 ns |
Operating Modes | |
Operating Modes | Continuous, triggered, phaselock, start phase, and (Model 80 only) sweep |
Sweep Operation (80 Only) | |
Modes | Sweep may be continuous or triggered by any trigger mode |
Sweep Spacing | Linear and logarithmic |
Sweep Directions | Up, down, up-down, and down-up |
Sweep Range | Log: 10 decades max Linear: 3 decades max |
Sweep Rate | Log: 10 ms to 999s per decade Linear: 10 ms to 999s |
Sweep Out | 0 to 5V ramp proportional to frequency at rear panel BNC Marker Output: Output signals when marker frequency is reached |
Triggered Operation | |
Modes | Single shot, gated, and burst |
Sources | Manual (front panel key), internal trigger rate generator, and external signal input |
Triggered | For each trigger, one output cycle is generated |
Gated | Continuous waveform cycles are generated for the duration of the active portion of the trigger signal. Last cycle is always completed |
Burst | Preset number of waveform cycles are generated by a trigger: 1 to 4,000 |
Manual Trigger | Key provides trigger signal |
Internal Trigger Rate Generator | 1 mHz to 50 kHz |
External Input | Via Trig Input BNC |
Impedance: | 10 kO ± 5% |
Sensitivity: | 500 mVp-p |
Max Input Voltage | ± 20V |
Min Pulse Width | 20 ns |
Max Frequency: | 50 MHz |
Slope | Positive or negative going leading edges |
Trigger Level: | Variable -10V to +10V |
Start Phase of Triggered Waveform | To 500 kHz: Adjustable from -90º to +90º. From 500.1 kHz to 50 MHz: Adjustable range proportionally reduced as frequency increases Accuracy (to 500 kHz): ± 3º |
Phaselock Operation | |
Phaselock Operation | Output waveform locks to frequency and phase of external signal. Phase may be offset. |
Impedance | 10 kO ± 5% |
Min Pulse Width | 10ns |
Locking Range | 10 Hz to 60 MHz |
Phase Offset (10 Hz to 19.99 MHz) | Continuously adjustable from -180º to +180º |
Resolution | 1º |
Accuracy (1O Hz to 100 kHz) | 3º + 3% of reading |
General Specifications | |
Remote Operation | GPIB interface is standard on Models 80 and 81. HP8116A emulation mode (Model 81 only) |
Environment | Operating Temperature: 0º to 50ºC, ambient For Specified Accuracy: Within ± 5ºC and 24 hours of last internal calibration Storage Temperature: -40º to +70ºC Humidity: 80% R.H. |
Power, battery life | 115/230 Vac, optional 100V, 50 or 60 Hz, 60 W max |
Stored Set-ups | Complete sets of front-panel set-ups stored: 30 |
Size | 8.9 cm (3.5 in) high x 21.1 cm (8.3 in) wide x 39.1 cm (15.4 in) deep |
Rack Mount Dimensions | Single: 8.9 cm (3.5 in.) H x 48.3 cm (19 in.) W Dual: 13.3 cm (5.25 in) H x 48.3 cm (19 in) W |
Weight | 6 kg (12 lb) |