Keithley 7156

The Keithley 7156 is a general-purpose scanner card that expands the switching capabilities of compatible Keithley 7000 Series mainframes. It routes signals across multiple test points, enabling a single measurement instrument to interface with numerous nodes in automated test equipment, laboratory research, and production test environments. The card operates in dual configurations: 10 channels in 2-pole mode or 20 channels in 1-pole mode, with contact resistance below 2 Ω per relay.

– Technical Specifications

Switching Architecture:
• Contact configuration: 2-pole Form A
• Channel density: 10 channels (2-pole) or 20 channels (1-pole)
• Contact resistance: <2 Ω

Relay Drive Requirements:
• 7156-D variant: 30 mA
• 7156-M variant: 50 mA

Interface:
• Connector: 37-pin D-sub

– Key Features

• Dual-mode channel configuration optimizes flexibility across switching topologies
• Low contact resistance minimizes signal loss and measurement error
• Integrated relay drive options accommodate different mainframe architectures
• Field-proven architecture supports high-current and high-voltage multiplexing

– Typical Applications

• General switching and signal routing
• High and low current testing
• High and low voltage measurement
• Temperature measurement
• High frequency testing
• RF applications

– Compatibility & Integration

The 7156 integrates with Keithley 7000 Series Switch/Control Mainframes, which support DC, RF, and optical switch capabilities. The card interfaces with DMM and SourceMeter instruments for comprehensive automated measurement workflows.