The Agilent/Keysight E1420B is a C-size VXI universal counter module engineered for precision measurement within automated test systems. It executes traditional counter functions—frequency, period, time interval, totalize, and ratio—alongside automatic rise/fall time, pulse width, phase, and voltage measurements. The module delivers up to 60 measurements per second for single functions, 40 measurements per second with sequenced function switching, and 160 measurements per second with optional shared memory. Its SCPI interface streamlines integration into test architectures.
Technical Specifications
Frequency Measurement
• Standard range: 0.001 Hz to 200 MHz
• Optional UHF channel (Input 3): 90 MHz to 2.5 GHz (Option 030)
• Resolution: 9 digits per second of gate time
• Sensitivity (sinewave): 35 mV RMS to 200 MHz; minimum 200 mVp-p with attenuation
Time Interval
• Resolution: 2 ns (200 ps with averaging)
• Delay range: Extended to 1 second with Option 100
Rise/Fall Time
• Automatic measurement down to 15 ns
Voltage Measurement
• AC: 200 mVp-p to 5 Vp-p; 30 mV resolution (1 kHz to 20 MHz)
• DC: 30 mV to ±10 V; 30 mV resolution
Throughput
• Same function: 60 measurements/second
• Sequenced functions: 40 measurements/second
• Shared memory (Option 040): 160 measurements/second
– Key Features
• x10 programmable attenuation for higher-powered signals
• VXI CLK10 standard clock; optional TCXO time base (Option 010) for enhanced repeatability
• VXIbus and external triggering support
• SCPI command compatibility
– Typical Applications
• Automated frequency and timing verification
• Pulse parameter characterization
• Voltage monitoring in production test
• Multi-channel signal validation in ATE systems
– Compatibility & Integration
Form factor: C-size, 1-slot, message-based VXI module. SCPI interface enables straightforward integration with existing test frameworks and instrument control software.
