The Tektronix 11A32 is a dual-channel vertical amplifier plug-in module designed for Tektronix 11000-series and DSA600-series oscilloscopes. It delivers precise two-channel signal acquisition and conditioning across a bandwidth up to 400 MHz, with switchable bandwidth-limit filters at 100 MHz and 20 MHz. The module provides calibrated deflection factors from 1 mV/div to 10 V/div in 1% increments and supports dual input impedance selection: 1 MΩ (rated to 400 V DC + peak AC) or 50 Ω (with 5 VRMS overload protection). High-resolution DC offset control includes a calibrated offset range of ±1 V with 25 µV resolution at the 1 mV/div setting. The M377 IC output stage delivers 100 Ω per side source impedance, allowing parallel configuration. Fast overdrive recovery and manual reset protect against signal overload in 50 Ω mode. On-board Dallas Semiconductor DS1220Y NVRAM preserves calibration constants, settings, and serial number data. Display and trigger outputs from both channels drive the mainframe’s 50 Ω per side input impedance in parallel, with auxiliary outputs available per channel. BNC connectors provide input connections; the compact 8 lb form factor integrates directly into compatible Tektronix mainframes without external cabling requirements.
Technical Specifications
• Channels: 2
• Bandwidth: Up to 400 MHz; limited to 100 MHz or 20 MHz with four-pole filters (24 dB/octave roll-off)
• Deflection Factor: 1 mV/div to 10 V/div, calibrated in 1% increments
• DC Offset: ±1 V range at 1 mV/div; 25 µV calibrated resolution; fast overdrive recovery
• Input Impedance: Switchable 1 MΩ or 50 Ω
• Maximum Input Voltage: 400 V (DC + peak AC) at 1 MΩ
• Overload Protection: 5 VRMS in 50 Ω mode, manual reset
• Output Impedance: 100 Ω per side (50 Ω source impedance in parallel configuration)
• Weight: 8 lbs
– Key Features
• Continuously variable vertical deflection for signal analysis
• Dual-impedance input selection for high-voltage or 50 Ω matched applications
• Calibrated DC offset with resolution to 25 µV
• M377 IC amplifier with parallel output configuration
• Non-volatile memory (DS1220Y NVRAM) for calibration and configuration storage
• ACVS (Analog Control Voltage System) sample and hold module
• BNC input connectors
– Typical Applications
• High-speed digital design verification
• Communications signal analysis
• Multi-channel signal acquisition
• General-purpose dual-channel measurements
– Compatibility & Integration
The 11A32 plug-in integrates with Tektronix 11000-series oscilloscopes, DSA600-series scopes, 11301, and 11401 digitizers. Display and trigger outputs operate in parallel configuration to the host mainframe.
