The Tektronix TCA-1MEG is a high-impedance buffer amplifier that extends the measurement capabilities of compatible Tektronix oscilloscopes. It delivers a switchable 1 MΩ input path with minimal circuit loading for accurate signal acquisition from high-impedance sources. The TekConnect interface provides multi-GHz analog bandwidth performance while maintaining a low VSWR 50 Ω environment, overcoming traditional BNC limitations. This makes it essential for verification, characterization, and debug work in communications, computer, and semiconductor applications.
Technical Specifications
• Bandwidth (−3 dB): DC to ≥500 MHz
• Input Impedance: 1 MΩ || 10 pF
• Bandwidth Limiting: Selectable Full, 100 MHz (±25%), or 20 MHz (±25%)
• Input Coupling: DC, AC, or GND
• Gain Accuracy: ±3% DC
• Maximum Input Voltage: 150 Vrms (CAT I) / 100 Vrms (CAT II)
– Key Features
• TekConnect interface with automatic 1 MΩ input configuration on host instrument connection
• Input settings (coupling, bandwidth) are retained between connections
• TEKPROBE™ BNC-compatible input connector accepts standard BNC and BNC readout pin connections
• One-button release and locking mechanism for quick probe and adapter installation
• Power and control via TekConnect interface
– Typical Applications
High-impedance source measurement in analog circuit characterization, precision signal acquisition where minimal loading is critical, and multi-channel oscilloscope measurements requiring switchable input impedance.
– Compatibility & Integration
Works with Tektronix TDS7000, CSA7000, TDS6000 Series, and TDS/CSA7000B DPO Series oscilloscopes. Integrates with passive probes (P6101B, P6139A), high-voltage probes (P5205, P5210, P6015A, P5100), the ADA400A differential preamplifier, and the AM503S current amplifier measurement system.
