Tektronix 576/176 Curve Tracer System – Semiconductor Testers
Description
The Tektronix 576 Curve-Tracer System continues to hold the title ''standard of the industry.” This general-purpose curve-tracer system performs well in applications where high-current testing is required.
With the Standard Test Fixture, the collector supply of the 576 delivers up to 220 W peaks to the device under test. The step generator can deliver up to 2 A in both its current and voltage modes of operation. With the 176 High-Current Test Fixture, the 576 is capable of pulsed collector operation up to 200-A peak.
Alphanumeric indicators provide readout of vertical and horizontal deflection factors, step amplitude, and Beta/div or gm/div. The Beta or gm readout saves the operator from the arithmetic usually necessary to arrive at these parameters. These indicators also provide a permanent record of major knob settings in 576 CRT photographs.
Features
- Calibrated display offset
- Adjustable current limiting in the step generator; either 300 or 80 micro second pulse width in pulsed base operation
- Push buttons to check display zero and calibration
- Illuminated graticule
- Safety interlock protects the operator from dangerous voltages
Specifications
|
Accuracy-Incremental |
Within 5%, between steps, within 10% with X 1.O Mult. Absolute: Within 2% of total output including offset, or 1% of amplitude setting, whichever is greater? Offset Multiplier: Continuously variable from 0 to X10 the amplitude setting, either aiding or opposing the step polarity |
|
Step Rates |
Selectable at X1, X2, or X4 line frequency |
|
Pulsed Steps |
80 or 300 micro second width |
|
Step/Offset Polarity |
Same as Collector Supply polarity and positive in ac position. Polarity can be independently inverted with Step/Offset Polarity control or from the test fixture |
|
Step Family |
Repetitive or single family |
|
Number of Steps |
Selectable from 1 to 10 |
|
Vertical-Deflection Factor |
Collector Current: 1 micro Amp to 2 A/div, 20 steps in 1-2-5 sequence (0.1 micro Amp/div with X10 magnification). Emitter Current: 1 nA to 2 mA/div, 20 steps in 1-2-5 sequence. Step Generator: 1 step/div |
|
Horizontal- Deflection Factor |
Collector Volts: 50 mV to 200 V/div, 12 steps (5 mV/div with X 10 magnification). Base Volts: 50 mV to 2 V/div, 6 steps (5 mV/div with X 10 magnification). Step Generator: 1 step/div |
|
Voltage Ranges |
90 to 136 V ac or 180 to 272 V ac (six positions) |
|
Line Frequency |
48 to 66 Hz |
|
Maximum Power Consumption (Including DUT Power) |
305 Watts |
|
Standby Power |
60 Watts |
|
Dimensions |
11.8 x 15.0 x 23.3 inches |
|
Weight |
48.5 kg 107 lbs. |
