Keithley 6487/J Picoammeter/Voltage Source

Overview

The Keithley 6487 is a 5½-digit picoammeter/voltage source that improves on the Model 6485 with higher accuracy, faster rise times, and a high resolution 500V source. It provides a damping function for use with capacitive devices and can measure currents from 20fA to 20mA at speeds up to 1000 readings per second, with voltage sourcing from 200µV to 505V.

Key Features

• Current measurement from 20fA to 20mA with eight measurement ranges
• Burden voltage as low as 200μV for high-accuracy measurements in low-voltage circuits
• Built-in 500V source for bias and insulation resistance testing
• Damping function for capacitive device testing
• Up to 1000 readings per second with high-speed autoranging
• Built-in analog outputs for signal monitoring and trend analysis
• Built-in Trigger Link interface for system synchronization
• GPIB and RS-232 interfaces

Applications

• Measuring ultra-low leakage currents in electronic components
• Dark current measurement in optical devices
• Beam current measurement in microscopy instrumentation
• Multi-location current monitoring on materials
• 4-20mA sensor loop measurements
• Production testing with high throughput requirements