ORX 556


Dual Channel Programmable Pulse Generator

The OR-X556 is a Dual Channel Programmable Pulse Generator offering exceptional versatility, performance and precision.

Pulse Generator
50 MHz
GPIB & RS232


Max Frequency (Hz)


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The ORX556 is a Dual Channel Programmable Pulse Generator offering exceptional versatility, performance and precision.

Features of the ORX556

  • 50MHz Frequency Range with 10Vp-p into 50Ù Output
  • Variable Width and Delay with Variable Transitions
  • IEEE488.2 and RS-232C, SCPI compatible
High Performance Pulses

The Model 556 features variable pulse widths from 10 ns to 10 s, delays from 0 ns to10 s with up to 6 digits resolution and adjustable output levels from -10V to +10V, with pulse amplitudes from 0.1V to 10Vp-p into 50 ohms load.
Each channel can be operated independently or coupled as a dual channel unit. The Pulse Generator also features selectable complementary pulse and double pulse, in continuous, triggered, gated and counted burst modes. The Model 556 allows selection of predefined amplitude and offset for critical stimulus and testing of major semiconductor technologies as TTL, CMOS and ECL.

Variable Transitions

To make operation flexible, variable transitions (rise and fall times) can be programmed from 5 ns to 100 ms. With the flexible transition times, various shapes of pulses can be obtained for applications where parameters such as linearity, switching times or reflection times must be analyzed.
Operational amplifiers slew rate can be measured or thresholds of devices and circuits can be easily tested using programmable rise and fall times.

Fast and Easy Operation

To make operation easy, Model 556 interface with the operator in a straightforward manner by which the front panel display always shows the parameter being varied and its value. If a new parameter just entered is not compatible with the existing setup status, the operator is informed by an error message.
Test setups, up to 99 locations, can be stored and recalled. This feature allows simple test sequence development as well as no need for a controller in repetitive tests, with reduced bus traffic in ATE applications. Last user setup is also retained at power down.

Internal Calibration

The Pulse Generator Model 556 is self calibrating itself by means of internal time and voltage reference.
With no need to open the case, the Pulse Generator benefits of improved accuracy, extended calibration interval and low downtime.

GPIB Programming

The Model 556 has been designed for use in ATE systems. All parameters, modes and functions are programmable and fully compatible with IEEE-488.2 and the Standard Commands for Programmable Instruments (SCPI).

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