Keithley 2657A

Section 1: Introduction Model 2657A High Power System SourceMeter® Instrument Reference Manual
1-4 2657A-901-01 Rev. B/December 2012
Capabilities and features
The Model 2657A High Power System SourceMeter
®
instrument has the following features:
• Resistance and power measurement functions
• Four-quadrant sink or source operation
• Contact check function
• High-capacitance mode for load impedance up to 10 μF (microfarads)
• Linear, logarithmic, and custom sweeping and pulsing
• Filtering to reduce reading noise
• High-speed sampling fast analog-to-digital converter (ADC); the fast ADC uses a hardware buffer
that can store up to 5,000 readings in a single measure action
• Dual ADCs to measure current and voltage at the same time
• Overvoltage protection
• Safety interlock incorporated into rear-panel digital I/O connection
• Trigger model that supports extensive triggering and synchronization schemes at hardware
speeds
• Internal memory stores five user setup options
• Dedicated reading buffers that can each store and recall over 140,000 measurements; additional
dynamic reading buffers can be created
• USB flash drive access for saving data buffers, test scripts, and user setups
• Digital I/O port that allows the Model 2657A to control other devices
• Web-based characterization tool that provides easy access to data gathering, sweeping, and
pulsing features
• LXI
®
version 1.4 Core 2011 compliance
• Embedded TSP scripting engine that is accessible from any host interface; responds to
high-speed test scripts that are comprised of instrument control commands
• TSP-Link
®
expansion bus that allows TSP-enabled instruments to trigger and communicate with
each other; advanced Test Script Processor (TSP
®
) scripting engine features enable parallel
script execution across the TSP-Link network
• Supports IEEE-488 (GPIB), RS-232, and ethernet local area network (LAN) connections
Additional source and measure features:
• Source ± DC voltage from 5 mV to 3030 V
• Source ± DC current from 30 fA to 120.12 mA
• Measure ± DC voltage from 1 mV to 3030 V
• Measure ± DC current from 20 fA to 120.12 mA