The HP/Agilent 54201D is a two-channel digital storage oscilloscope delivering simultaneous waveform acquisition across a 300 MHz repetitive bandwidth and 50 MHz single-shot bandwidth. Operating at 200 megasamples per second, this instrument captures real-time and random repetitive digitized waveforms with 1001-sample record length per channel. The 54201D variant incorporates parallel and serial logic trigger qualification via three 8-bit logic pods, enabling advanced signal analysis and precise event detection. Vertical sensitivity ranges from 40 mV to 16 V full-scale with ±2% gain accuracy and ±1.6% ADC accuracy. Time-base settings span 50 ns to 10 s in real-time sampling and 10 ns to 20 µs in repetitive mode, with timing accuracy to ±2 ns or ±0.2% of range. Trigger sources include Channel 1, Channel 2, or external input, with 1/8 full-scale sensitivity and holdoff-by-events capability. Pre-trigger viewing extends at least 200 screen diameters post-trigger, supporting detailed transient analysis and waveform characterization. DC offset range reaches ±1.5 V on lower gains and ±30 V on higher gains. Input coupling options include AC and DC paths with 1 MΩ || 10 pF or 50 Ω DC input impedance. Maximum safe input voltage is ±40 V DC + peak AC on the 1 MΩ path, or 5 Vrms on the 50 Ω path.
Technical Specifications
• Bandwidth: 300 MHz repetitive; 50 MHz single-shot
• Sample Rate: 200 megasamples/second
• Record Length: 1001 samples (1000 intervals) per channel
• Channels: Two, simultaneous acquisition
• Vertical Range: 40 mV to 16 V full-scale
• Vertical Accuracy: ±2% gain; ±1.6% ADC; ±3.6% DC offset
• Time Base (Real-Time): 50 ns to 10 s full-scale; ±2 ns or ±0.2% accuracy
• Time Base (Repetitive): 10 ns to 20 µs full-scale; ±200 ps or ±0.2% accuracy
• Trigger Sensitivity: 1/8 full-scale (DC to 250 MHz)
• Input Impedance: 1 MΩ || 10 pF (AC/DC); 50 Ω DC
• Maximum Safe Input: ±40 V DC + peak AC (1 MΩ); 5 Vrms on 50 Ω
– Key Features
• Simultaneous two-channel digitizing with real-time and random repetitive sampling modes
• Logic trigger qualification with parallel and serial capabilities (54201D)
• Three logic pods supporting 8-bit + parity + clock per pod
• Pre-trigger viewing and extended post-trigger range for complete event capture
• Analog trigger adjustable to 0.001 screen diameter resolution
• Selectable AC/DC input coupling with 50 Ω option
• Parametric waveform measurements resident in instrument
– Typical Applications
• Pulse and transient analysis up to 300 MHz
• Digital logic signal acquisition and timing verification
• High-speed event triggering with holdoff-by-events control
• Multi-channel waveform correlation and characterization
– Compatibility & Integration
The 54201D connects via standard oscilloscope input channels and provides digitized waveform output for external processing and parametric computation.


















