Tektronix / CDS 73A-256 High-Power, 6-Channel D/A Module

The Tektronix CDS 73A-256 is a 16-bit, 12-channel high-power Digital-to-Analog (D/A) module engineered for precision signal generation and control in VXI systems. This single-slot, C-size module delivers independent analog outputs across 12 channels, each capable of driving substantial loads with guaranteed 14-bit monotonicity and programmable resolution.

– Technical Specifications

• Resolution: 16-bit
• Channels: 12 independent D/A conversion channels
• Output Range: ±16.3835 V per channel
• Output Current: Minimum 60 mA per channel (all channels driven); up to ±16.3835 V into 40 Ω load; 720 mA maximum total (all 12 channels)
• Conversion Rates: 1000 voltage changes/second (all channels); 3000 voltage changes/second (single channel)
• Step Size: Programmable in 0.5 mV increments
• Monotonicity: Guaranteed to 14 bits
• Output Modes: Buffered and non-buffered operation

– Key Features

• Single-slot VXI form factor integration
• Dual output modes enable flexible system configurations
• LED status indicators and integrated self-test for diagnostic verification
• Independent channel control allows parallel signal generation
• Programmable step resolution supports precision waveform synthesis

– Typical Applications

• Multi-channel analog signal generation in automated test systems
• Precision control and stimulus applications requiring simultaneous outputs
• VXI-based instrumentation requiring high-voltage, multi-channel D/A conversion
• Applications demanding independent channel switching and buffered output capability

– Compatibility & Integration

The CDS 73A-256 integrates into VXI (VME eXtensions for Instrumentation) systems as a C-size module. Functional similarity to the Tektronix VX4730 permits migration between platforms.