Agilent/Keysight 11049A

The Agilent/Keysight 11049A is a thermal converter that transforms AC input signals into proportional DC voltages for precise RMS measurements across a wide frequency spectrum. Engineered for accurate RMS AC voltage comparison at different frequencies, this device maintains signal integrity in demanding test environments where frequency-dependent measurements are critical.

– Technical Specifications

Input Characteristics
• Maximum input voltage: 3 V RMS
• Input impedance: 50 ohms ± 0.15 ohms
• Input resistance: 50 ohms ± 0.15 ohms

Output Characteristics
• Output impedance: Less than 10 ohms
• Output resistance: Less than 10 ohms
• Nominal output voltage: 7.0 mV to 7.5 mV (full range input)

Frequency Response
• Essentially flat response: 5 Hz to 10 MHz
• Good response: 10 MHz to 100 MHz

– Key Features

• DC output proportional to AC RMS input voltage enables direct integration into measurement systems
• Flat frequency response from 5 Hz to 10 MHz minimizes frequency-dependent measurement errors
• Extended frequency capability to 100 MHz supports broadband signal characterization
• Low output impedance (less than 10 ohms) ensures minimal loading on measurement instruments
• Precise 50-ohm input impedance matching reduces reflections and signal distortion

– Typical Applications

RMS AC voltage measurements and comparisons across multiple frequency ranges. Ideal for systems requiring accurate thermal conversion without frequency-dependent calibration adjustments across the 5 Hz to 10 MHz band.

– Compatibility & Integration

Part of the thermal converter series including the 11050A (1 V RMS maximum input) and 11051A (0.45 V RMS maximum input). Calibration available to either 60 MHz or 100 MHz with corresponding correctional data sheets. Operating and Service Manual (Part number 11049-90005, May 1984) provides complete integration and calibration guidance. Product is discontinued.