The Agilent/Keysight E1437A is a C-size, single-slot VXI digitizer engineered for high-precision signal acquisition and analysis. Operating at 20 MSa/s with 23-bit ADC resolution, it captures intricate signal details required for advanced digital signal processing applications. The module delivers spurious-free dynamic range to -110 dBfs, linearity to 110 dBfs, and noise density of -140 dBfs/Hz at full resolution.
Technical Specifications
Digitizer Performance
• Resolution: 23-bit raw ADC
• Sample rate: 20 MSa/s
• SFDR: Up to -110 dBfs (18 bits effective)
• Noise density: -140 dBfs/Hz
• Linearity: Up to 110 dBfs at 20 MSa/s
• Spurious signal contamination: At least -110 dBfs
• Real-time distortion correction: Fixed nonlinearities reduced to ≥110 dB below full scale; soft distortion to ≥70 dB below applied carrier level
Input and Signal Conditioning
• Anti-alias filter: 8 MHz
• Input bandwidth: 8 MHz (filtered), 40 MHz (unfiltered)
• Digital filters: 24 real-time decimation type
• Digital local oscillator: Included
• Analog signal conditioning: Built-in
Memory and Data Transfer
• FIFO memory: 8 MB standard (64 MB optional)
• VXIbus port transfer rate: 1 MB/s typical
• Local bus transfer: Up to 60 MB/s burst; 40.96 MB/s continuous
Timing and Synchronization
• Sample clocks: Two standard
• Internal clock: 20 MHz, 20.48 MHz
• External reference clock: 20 MHz phase-lockable
• Flexible triggering and synchronization
– Key Features
• Single-slot C-size VXI module for compact system integration
• 23-bit resolution with distortion correction for enhanced signal fidelity
• Dual memory options accommodate varying acquisition duration requirements
• High-speed local bus enables sustained 40+ MB/s data transfer
• 24 programmable filters enable in-module signal conditioning and bandwidth optimization
– Typical Applications
• Signal monitoring in digital signal processing workflows
• Multi-channel data acquisition systems
• RF and baseband signal analysis
• Test and measurement environments requiring high-resolution transient capture
– Compatibility & Integration
VXI plug-and-play architecture. Supported on Windows 3.1, Windows 95, Windows NT, Windows 2000, and HP-UX platforms.
