DetailsMaxim

Tektronix 576/176 Curve Tracer System - Semiconductor Testers

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.

Quantity:

Feature Specification

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

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.