The Teledyne LeCroy AP033 is a 500 MHz active differential probe engineered for precision measurement of high-speed differential signals in laboratory and field environments. It delivers low noise performance, minimal input capacitance, and exceptional common-mode rejection, enabling accurate signal characterization across demanding test applications. The probe integrates directly with Teledyne LeCroy oscilloscopes via ProBus™ interface, allowing front-panel control of gain, attenuation, and offset parameters. An optional ADPPS power supply extends compatibility to spectrum analyzers, network analyzers, and oscilloscopes without ProBus capability.
Technical Specifications
Bandwidth & Frequency Response
• DC to 500 MHz (-3 dB, probe only)
• Risetime: 700 ps
• Low-frequency cutoff (AC coupling): Approximately 1.6 Hz or 16 Hz (-3 dB point)
Gain & Attenuation
• Selectable attenuation: ÷1, ÷10, ÷100 (with plug-on attenuator)
• Amplifier gain: x1 and x10
• Sensitivity range: 200 µV/div to 1 V/div (with LeCroy oscilloscope)
• Deflection factors: 2 mV/div to 1 V/div
Input Characteristics
• Input noise: 6 nV/√Hz (÷1 attenuation, x10 gain); 4 nV/√Hz (x10 gain, ÷1 attenuation) — measured 5 to 1000 MHz
• Input resistance: 1 MΩ per side to ground
• Input capacitance: 2 pF/side (÷10 attenuation); 1 pF differential (÷10 attenuation); 2.7 pF differential (÷1 attenuation)
• Common-mode rejection ratio: Greater than 80 dB (10,000:1) in both attenuation settings
Voltage & Offset
• Differential offset range: ±400 mV (÷1 attenuation); ±4 V (x1 gain, ÷10 attenuation)
• Common-mode voltage range: ±5 V (x10 gain, ÷1 attenuation); ±50 V (x1 gain, ÷10 attenuation)
• Output impedance: 50 Ω nominal
– Key Features
• ProBus™ direct integration with Teledyne LeCroy oscilloscopes for remote parameter control
• Multi-range attenuation and gain selection for flexible signal conditioning
• Ultra-low input capacitance minimizes circuit loading
• High CMRR rejects common-mode interference in differential measurements
• 1.06 m probe cable with standard 0.025 in. square pin connectivity
– Typical Applications
• High-speed differential signal acquisition and characterization
• Power supply and switching noise analysis
• Digital signal integrity verification
• Mixed-signal circuit debugging
• Use with spectrum analyzers and network analyzers via optional ADPPS power supply
– Compatibility & Integration
Direct ProBus integration with Teledyne LeCroy oscilloscopes (software 8.1.0 or higher required for legacy models). Operates 0 to 50°C. Optional ADPPS power supply enables operation with non-ProBus oscilloscopes and third-party test instruments.
