Keithley 7001 80-Channel / 2-Slot Switch Mainframe

The Keithley 7001 is an 80-channel, 2-slot mainframe switch system engineered for automated testing and signal routing across DC, RF, and optical domains. It delivers flexible switching architecture with up to 40 channels per slot, supporting signals ranging from nanovolts to 1100 V and femtoamps to 5 A. The instrument combines high-density channel capacity with programmable scan control, non-volatile memory for 100 switch patterns, and multiple trigger sources - enabling rapid, repeatable switching sequences at 165 channels per second.

Technical Specifications

Channel Capacity: Up to 80 channels of 2-pole switching (40 channels maximum per slot)

Signal Range: DC from nanovolts to 1100 V; femtoamps to 5 A

Analog Backplane Voltage: 250 V DC, 250 V rms, 350 V AC peak (signal-to-signal or signal-to-chassis)

Backplane Current: 1 A peak

Path Isolation: >10¹⁰ Ω, 10¹⁰ Ω, 10⁹ Ω, <75 pF (path-to-chassis)

Crosstalk: <−65 dB @ 1 MHz (50 Ω load)

Bandwidth: <3 dB loss at 100 MHz (50 Ω load)

Scan Execution Speed: 165 channels per second (including card settling time)

Programmable Settling Time: 0 to 99999.999 seconds in 1 ms increments

Switch Action: Automatic break-before-make

Memory: Battery-backed non-volatile storage; up to 100 complete switch patterns

Key Features

Built-in scan control with programmable channel spacing, scan spacing, and scan count

Multiple trigger sources: external TTL (600 ns minimum pulse), IEEE-488 bus, Trigger Link (high-speed), manual front-panel, and internal timer (1 ms to 99999.999 seconds)

Channel Ready status output (TTL-compatible, 10 µs typical pulse after relay settling)

Four open-collector digital I/O outputs (30 V maximum)

Front-panel and IEEE-488 programmability

Typical Applications

Automated test systems requiring multi-channel signal routing

DC precision measurement with ultra-low signal levels

RF and optical signal switching and multiplexing

Matrix expansion and cross-point switching via dual-card configurations

Compatibility & Integration

IEEE-488.1, IEEE-488.2, and SCPI-1990 compliant

IEEE-488 8-pin micro-DIN rear-panel connector

Trigger Link for synchronization with external instruments without GPIB latency