STA7778A Series DC Bias Current Source

STA7778A adopts a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency. The built-in embedded MCU with high- performance can quickly respond to host and slave machine condition or malfunction and make real time indication, which helps improve the work efficiency. The new designed friendly graphical operation interface included 5-foot control modes and full touch operation provides convenience and efficiency for users. New file management system with easy, prompt and accurate operation can save a group of real-time setting file and 99 groups of user-defined setting files. It can provide pushed information indication and cache 2 real-time information. Being provided with two modes of SCPI instruction systems, it is convenient to set up production lines or single machine test. Also, it can connect with any device with serial port, and which refer to the SCPI instruction system design of this machine.

** Standard Lead Time: within 4 weeks **

Key Features

Provide 0~20A of constant current output for single one

Support 6 machines at most and reach 120A of constant current output

Extreme refined current step: when <1A, reach 5mA; when <5A, reach 25mA; when <120A, reach 100mA

Adopting a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency

Current output mode: single current, step scan

Providing real-time operation mode for all parameters and settings without waiting

New file management system with easy, prompt and accurate operation

Providing 2 kinds of SCPI command modes with good adaptability

Excellent tailing capability and extendibility, additional slave superposition depending on the demands

Frequency Range

0Hz-2MHz

Current Range

0-±20A

0-±20A (No Extension)

0-±20A, can extend to 120A

Current

Range: 0mA-1.000A; 1.000A-5.000A; 5.0A-120.0A

Step: 5mA; 25mA; 100mA

Sweep adjustment time: 4ms-3600s; 10ms-3600s; 20ms-3600s

Minimum interval of sweep adjustment step: 5mA; 25mA; 100mA

Maximum output voltage

10V

Maximum permitted DCR

Rmax=Vmax/I (Ω)(Calculation of Rmax, please refer to the description in user manual)

Maximum permitted inductance value

Lmax=Vmax/(di/dt) (mH)(Calculation of Lmax, please refer to the description in user manual)

Max. current time for continuous loading

Keeping 2-3h, continuous output

Main Machine

Module No. Item Description
STA7778A DC Bias Current Source Frequency range: 0Hz-2MHz, including Test Box, Test Fixture, RS232 Connection Cable.
STA7778B DC Bias Current Source Frequency range: 0Hz-2MHz, including Test Box, Test Fixture, RS232 Connection Cable.
STA7778AS DC Bias Current Source Frequency range: 0Hz-2MHz, including Test Box, Test Fixture, RS232 Connection Cable.

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