Keithley 2268-100-8 850W DC Power Supply: 100V: 8.5A

The Keithley 2268-100-8 is an 850 W DC power supply engineered for demanding automated test applications requiring high power density in a compact footprint. It delivers maximum output of 100 V at 8.5 A, housed in a 1U high, half-rack width enclosure that minimizes rack real estate while maintaining exceptional performance. The unit operates across three control modes - constant voltage (CV), constant current (CC), and constant power - with load regulation of ±0.05% (voltage) and ±0.1% (current), and line regulation of ±0.01% (voltage) and ±0.05% (current). Voltage ripple and noise measure ≤12 mV RMS and ≤100 mV peak-to-peak; current ripple stays ≤10 mA RMS. Transient response time is less than 2 ms. Programming resolution is 0.1 V and 0.01 A with ±0.5% accuracy on both voltage and current.

Technical Specifications Output Characteristics

Maximum Output Voltage: 100 V

Maximum Output Current: 8.5 A

Maximum Output Power: 850 W

Voltage Regulation (Load): ±0.05% of rated output voltage

Current Regulation (Load): ±0.1% of rated output current

Voltage Regulation (Line): ±0.01% of rated output voltage

Current Regulation (Line): ±0.05% of rated output current

Voltage Ripple & Noise: ≤12 mV RMS, ≤100 mV peak-to-peak

Current Ripple: ≤10 mA RMS

Transient Response: <2 ms (no-load to full-load transitions) Programming

Voltage Resolution: 0.1 V

Current Resolution: 0.01 A

Voltage Accuracy: ±0.5% of rated output voltage

Current Accuracy: ±0.5% of rated output current

Up-Programming Time (0 to Vmax): 100 ms

Down-Programming Time (Full Load): 80 ms AC Input

Rated Input: 100 VAC to 240 VAC, 47 Hz to 63 Hz

Operating Input: 85 VAC to 265 VAC continuous

Input Current: 11.5 A at 100 VAC, 6 A at 200 VAC (at 850 W)

Key Features

Three control modes: CV, CC, and constant power operation

Programmable foldback mode with user-defined delay for device protection

Two auxiliary outputs (15 V, 5 V) for external relay/signaling control

Overvoltage (OVP), overcurrent (OCP), and overtemperature (OTP) protection

Interlock connection for external safety condition detection

Isolated and non-isolated analog input options

TTL-level and dry-contact compatible auxiliary outputs

Interfaces & Integration

Digital: LAN, USB, GPIB, RS-232, RS-485

Analog: Isolated and non-isolated inputs (voltage or resistance control)

Auto sequence control for internal command execution

Typical Applications Automated test systems, device characterization, burn-in testing, and bench-top research requiring stable, programmable power delivery with fast transient response and comprehensive protection.