The Agilent/Keysight 44724A is a 16-channel digital output module engineered for precise switching control of DC devices and logic circuits within automated test and data acquisition systems. Each channel provides open-drain output capable of sinking up to 500 mA DC while controlling loads at voltages up to 55 Vdc or driving TTL logic levels at up to 200 mA per channel. Switching rates reach 1 kHz, enabling rapid on-off control across all 16 channels. The module integrates directly into the Agilent 3852A chassis and requires external power supplies and pull-up resistors tailored to the connected load impedance and voltage requirements.
Technical Specifications
• 16 open-drain digital output channels
• Maximum sink current: 500 mA DC per channel
• Output voltage capability: 55 Vdc between high and low terminals per channel
• TTL output compatibility: 200 mA per channel at Vout ≤ 0.4 Vdc
• On-state resistance: < 1.5 Ω
• Off-state leakage current: 0.25 mA @ 55 Vdc
• Maximum reverse polarity current: 500 mA DC per channel
• Switching rate: Up to 1 kHz
• Isolation rating: 350 Vpeak or 250 Vdc between channels or to chassis
• Fuse protection: 1 A on terminal module
• Maximum conductor size: 16 AWG
– Key Features
• Open-drain outputs eliminate output pull-up resistor limits, allowing flexible load impedance
• Sub-1.5 Ω on-resistance delivers clean switching with minimal voltage drop
• Dual control capability addresses both high-voltage DC devices and standard TTL/CMOS logic circuits
• Per-channel fusing and low leakage current protect connected circuits
• Modular insertion design fits directly into 3852A mainframe architecture
– Typical Applications
• Industrial relay and solenoid control
• Test fixture automation and switching matrices
• Logic state monitoring and device enable/disable functions
• Multi-channel DC load switching in precision measurement systems
– Compatibility & Integration
Designed for the Agilent 3852A Data Acquisition and Control System. Supports TTL and CMOS logic level circuits. External power supply and pull-up resistors required; specifications depend on load characteristics and voltage rails.
