Tektronix SD-22 12.5 GHz Digital Sampling Head

The Tektronix SD-22 is a dual-channel digital sampling head delivering 12.5 GHz bandwidth for low-noise measurement in digital communications and device characterization. With an acquisition rise time of 28 ps and typical displayed noise of 450 µVRMS (reducible to 180 µVRMS with smoothing), the SD-22 minimizes noise floor to enable precise capture of high-speed circuit switching behavior, accurate statistical analysis of signal noise and timing jitter, and stable timing measurements across fast digital ICs.

– Technical Specifications

• Bandwidth: 12.5 GHz
• Channels: Dual-channel
• Acquisition Rise Time: 28 ps
• Displayed Noise (Typical): 450 µVRMS
• Displayed Noise (with Smoothing): 180 µVRMS
• Input Voltage Range: ±3 V maximum

– Key Features

• Low-noise architecture optimized for precision measurements
• Fast 28 ps rise time resolves high-speed signal transitions
• Smoothing capability reduces displayed noise to 180 µVRMS
• Dual-channel configuration for simultaneous multi-signal acquisition
• SMA connector adapter (011-0157-00; 2.4 mm male to 2.92 mm female) provided for standard RF connectivity

– Typical Applications

• High-speed digital communication circuit characterization
• Timing jitter and signal noise statistical measurement
• Fast digital IC timing analysis
• Low-level signal detection in noisy environments

– Compatibility & Integration

The SD-22 interfaces with Tektronix 11800 Series Digital Sampling Oscilloscopes and CSA 803 Series Communications Signal Analyzers, integrating into existing measurement systems without additional interface hardware.