The Keysight L4452A is a multifunction data acquisition and control module combining 32-bit digital I/O, dual-channel D/A conversion, and a totalizer in a single LXI Class C compliant instrument. It delivers flexible signal control and data capture across R&D, manufacturing, and automated test environments.
Technical Specifications
Digital Input/Output
• 32 bidirectional I/O lines, TTL-compatible
• Maximum input frequency: 1 MHz
• Output levels to 42 V
• External power supply capable for device control and limit switch sensing
• Continuous alarm limit evaluation with event logging
Digital-to-Analog Conversion
• 2 channels, 16-bit resolution
• Output range: ±12 V at ±5 mA
• 1 mV output resolution
• Suitable for bias voltage sourcing, programmable power supply control, and system set points
Totalizer
• 1 channel, 32-bit count range
• Maximum input frequency: 100 kHz
• Gated totalizer functionality for event counting and frequency measurement
Interfaces & Connectivity
• USB 2.0, LAN (Ethernet 10/100Base-T), GPIB
• LXI Class C compliant with built-in web interface
• Java-enabled browser access for remote configuration and monitoring
Power & Environment
• Input: 100-240 VAC, 50/60 Hz; 15 VA consumption
• Operating: 0°C to 55°C at full accuracy; up to 80% R.H. at 40°C
• Storage: -40°C to 70°C
• Dimensions: 105 mm × 340 mm × 265 mm; approximately 3.5 kg
– Key Features
• Mixed-signal I/O in single module eliminates integration complexity
• TTL-compatible digital lines with extended 42 V output capability
• Precise analog generation with millivolt-level resolution
• High-speed counting to 100 kHz with 32-bit precision
• Network-based instrument control and web-based troubleshooting
– Typical Applications
• Industrial automation and limit switch monitoring
• Analog signal generation for bias and control voltages
• High-speed event and frequency counting
• Remote test system management via Ethernet
– Compatibility & Integration
Includes Keysight I/O Libraries Suite 14 or greater. Supported on Windows 98 SE/NT/2000/XP with minimum 100 MHz Pentium processor, 64 MB RAM, and 210 MB disk space.
