11A33

Tektronix 11A33
150 MHz differential comparator 11A33 front view Compatible with 11000-series scopes Produced from 1987 to (?) Manuals Tektronix 11A33 User Manual (PDF) Tektronix 11A33 Extended Service Manual (PDF) Tektronix 11k Plug-in NVRAM Replacement (PDF) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 11A33 is a 150 MHz differential comparator plug-in for 11000-series oscilloscopes. The engineering team on the 11A33 project included Pat Quinn and Rich Huard.

It uses an M393 differential amplifier feeding an M377 amplifier. It contains an ACVS sample and hold module.

Key Specifications

Bandwidth	DC to 150 MHz
Deflection	1 mV/Div to 10 V/Div calibrated in 1% increments
Input impedance	50 Ω, 1 MΩ, 1 GΩ selectable
Differential DC Offset range	±1 V at 1 mV/Div
Features	Very high resolution calibrated DC Offset (16,000 Div effective screen height) High common-mode rejection Fast overdrive recovery from large input signals

Links

11A-series plug-in NVRAM replacement

Documents Referencing 11A33

Document	Class	Title	Authors	Year	Links
Tekscope 1972 V4 N5 Sep 1972.pdf	Article	A Practical Approach to Differential Amplifiers and Measurements	Fred Beckett	1972	112 • 11A33 • 1A5 • 1A6 • 1A7 • 1A7A • 26A2 • 3A9 • 5A22N • 7A13 • 7A22 • AM502 • D • E • G • P6055 • P6046 • W • Z
Tekscope 1972 V4 N6 Nov 1972.pdf	Article	Differential Amplifiers and Measurements, Part 2	Fred Beckett	1972	112 • 11A33 • 1A5 • 1A6 • 1A7 • 1A7A • 26A2 • 3A9 • 5A22N • 7A13 • 7A22 • AM502 • D • E • G • P6055 • P6046 • W • Z
Electronic-Engineering-Aug-Sept-1988-Versatile-Analogue-Chip-John-Addis.pdf	Article	Versatile Analogue Chip for Oscilloscope Plug-ins	John Addis	1988	M377 • 11A32 • 11A33 • 11A34 • 11A52 • Cascomp • Overdrive • Thermals • Gilbert multiplier • Pat Quinn • Gary Polhemus • Art Metz

Pictures

Front
input attenuator / relays
input attenuator / relays
relay detail
front right
rear right
front left
rear left (8031 microprocessor)
Analog Control Voltage System
output circuit
rear

Components

Some Parts Used in the 11A33

Part	Part Number(s)	Class	Description	Used in
155-2089-00	155-2089-00 • 155-2089-05	Hybrid integrated circuit	amplifier	11A33
Intel 8031		Monolithic integrated circuit	8-bit microcontroller	11A33 • 571 • DM504A • DM511 • DM5110
M377	165-2129-03 • 165-2089-06 • 155-2089-05	Monolithic integrated circuit	amplifier	11A16 • 11A32 • 11A33 • 11A34 • 11A52 • 2245 • 2245A • 2247 • 2247A • 2252 • TDS410 • TDS420 • TDS460 • TDS520D • TDS540D • TDS580D • TDS680C • TDS684C • TDS714L • TDS724D • TDS754D • TDS784D
M393		Monolithic integrated circuit	differential amplifier	11A33