Fluke 5080A Service Manual

5080A
Service Manual
18
DDS PCA (A6)
The DDS (Direct Digital Synthesis) PCA (A6) has these functional blocks:
• References for all voltage and current functions
• Gain elements for voltage functions and thermocouple measurement and
sources
• An A/D (Analog-to-Digital) measurement system to monitor all functions
• Self-calibration circuitry
• Zero calibration circuitry
• Precision voltage channel DAC (VDAC)
• Precision current channel DAC (IDAC)
• Dual-channel DDS (Direct Digital Synthesizer)
These functional blocks, when used with the Voltage (A8) and/or Current (A7)
assemblies, supply:
• Single or dual channel ac and dc volts, amps, and watts
• Offsettable waveforms
• Internal calibration and diagnostics
• Digital control of all the analog assemblies
DACS are used to control the level of dc signals and to control the amplitude of
ac signals.

Fluke 5080A Specifications

General

DC Voltage Range	0 to 1020 V
AC Voltage Range	0 to 1020 V
DC Current Range	0 to 20.5 A
Interface	RS-232, IEEE-488
Category	Calibrator
Outputs	Voltage, Current, Resistance
Resistance Range	0 to 100 MΩ
Frequency Range	10 Hz to 1 MHz
Power Supply	100 V to 240 V, 50 Hz to 60 Hz