The Keithley 4220-PGU High Voltage Pulse Generator Unit is a modular expansion card for the 4200A-SCS Parameter Analyzer that delivers precise, high-speed voltage pulse generation for semiconductor device and materials characterization. This dual-channel pulse source generates programmable voltage pulses from 100 mV to 40 V with minimum pulse widths of 20 ns, supporting both standard 2-level pulses and complex multi-level SegmentARB waveforms with up to 2048 unique segments. The unit is a voltage-sourcing alternative to the 4225-PMU Ultra-Fast Pulse Measure Unit, optimized for applications requiring accurate transient and dynamic device analysis without integrated measurement capability.
## Technical Specifications
**Pulse Output Characteristics**
• Voltage ranges: 10 V (high impedance), 5 V (50 Ω); 40 V (high impedance), 20 V (50 Ω); configurable ±40 V (80 Vp-p)
• Pulse amplitude: 100 mV to 40 V programmable
• Minimum pulse width: 20 ns (recommended minimums vary by range—770 ns for 40 V range)
• Pulse period: 20 ns to 1 s programmable
• Waveform modes: Standard pulse, SegmentARB (up to 2048 segments), Full ARB
• Triggering: Continuous, burst, or trig burst modes
• Output isolation via High Endurance Output Relay (HEOR) for high-speed switching
**Output Connectivity**
• Dual triaxial, 5-way binding post terminals
• Supplied with CA-404B SMA-to-SMA 50 Ω cables (2 m) and 4200-PRB-C SMA-to-SSMC Y-Cable assemblies (15 cm)
## Key Features
• Two independent pulse generation channels
• Nanosecond-level pulse width resolution
• Multi-level arbitrary waveform generation via SegmentARB
• High-speed, high-volume output switching via HEOR
• Direct integration into 4200A-SCS mainframe module slots
## Compatibility & Integration
Installs directly into designated module slots (Module 9, Module 7, Module 6) of the Keithley 4200A-SCS Parameter Analyzer mainframe, enabling seamless integration with complementary measurement modules and parametric test workflows.
