The Pulse Instruments PI-4002 is a modular mainframe instrument designed as the core component of the PI-4000 Series Low-Noise Clock Driver and DC Bias System. It delivers programmable clock signals and bias voltages for demanding CCD, infrared detector, and focal plane array testing applications. The eight-slot card chassis accepts PI-4000 Series plug-in cards for independent clock driver and bias supply control, with architecture emphasizing noise immunity through galvanic isolation between digital control and analog output circuitry.
Technical Specifications
• Card Slots: Eight per mainframe
• Clock Rates: Up to 100 MHz
• Bias Voltage Range: −25 V to +36 V
• Output High Level: +20.47 V to −19.48 V into 1 MΩ
• Output Low Level: −20.47 V to +19.47 V into 1 MΩ
• Resolution: 10 mV or 11 bits plus sign bit
• Accuracy: ±100 mV at minimum transition time; up to ±125 mV at longer transition times
• Transition Time: Programmable, 30 ns to 30 µs across three ranges
• Output Resistance: 50 Ω ±10%
• Output Polarity: Normal or inverted, programmable
– Key Features
• Independently programmable clock drivers and bias supplies per card slot
• Programmable voltage and current limits (selected models)
• Programmable leading and trailing edge timing control
• I/V sense output via isolated BNC connector
• Device protection and disconnect mode capability
• Optically isolated communication for remote controller operation
– Typical Applications
• Charge-coupled device (CCD) test and characterization
• Infrared detector bias and clock signal generation
• Focal plane array (FPA) device testing
– Compatibility & Integration
The PI-4002 operates as part of the PI-4000 Series ecosystem, requiring a PI-4003A DC Power Mainframe and system controller (USB-equipped PC or CompactPCI single-board computer). Separate power supplies between mainframes and optical isolation enable flexible placement of the instrument chassis near the device under test while locating system control remotely.
