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Tektronix 11A34
Quad channel 300 MHz amplifier
Tek 11A34

Compatible with 11000-series scopes

Produced from 1987 to (?)

Manuals – Specifications – Links – Pictures

The Tektronix 11A34 is a four-channel vertical amplifier plug-in for 11000-series and DSA600-series scopes. It uses four M377 amplifier chips. It contains two ACVS sample and hold modules.

Option 23 added four P6134 probes.

There is also a later version, the 11A34V introduced in 1991, for video applications. Development of the 11A34V was managed by Murlan Kaufman. (See also 11T5H.) more Information needed

The 11A34 uses the same firmware as the 11A32.

Key Specifications

Bandwidth DC to 300 MHz plus 100 MHz and 20 MHz BWL filters
Number of Inputs 4
Rise time 1.2 ns in 1 GHz mainframe such as the 11402, 11402A. 11403, 11403A, DSA601A, or DSA602A
Deflection 1 mV to 10V per division in 1% calibrated steps
Input impedance 50 Ω or 1 MΩ
  • High-Resolution Calibrated DC Offset
  • Fast Overdrive Recovery
  • 50 Ω mode 5 V RMS overload protected with manual reset



Custom ICs used in the 11A34

Page Class Manufacturer Model Part nos Description Designers Used in
M377 Monolithic integrated circuit Tektronix M377 165-2129-03 165-2089-06 155-2089-05 amplifier John Addis 11A16 11A32 11A33 11A34 11A52 2245 2245A 2247 2247A 2252 TDS410 TDS420 TDS460 TDS520D TDS540D TDS580D TDS680C TDS684C TDS714L TDS724D TDS754D TDS784D
M474 Monolithic integrated circuit Tektronix M474 amplifier John Addis Ivan John Cousins 11A32 11A34