7A29P: Difference between revisions

Revision as of 02:39, 16 August 2023

Tektronix 7A29P
1 GHz programmable amplifier 7A29 front view (sans options) Compatible with 7000-series scopes Produced from 1988 to 1991 Manuals please add (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 7A29P is a programmable 1 GHz single-channel vertical plug-in for 7000-series scopes. It is primarily intended for the 7912HB and the 7854 when paired with the 021-0374-00.

Key Specifications

Bandwidth	750 MHz (in 7912HB)
Input impedance	50 Ω
Max. input	max. 5 V_RMS or 25 V peak; max. 100 V additional DC component in AC mode
Deflection	10 mV/div to 1 V/div, 1-2-5, ±2%; variable 2.5:1, reduced bandwidth
Channels	Single channel

Internals

The 7A29P employs a number of Tek-made custom Hypcon-packaged hybrids initially designed for the 7A29 and the 7104, the 155-0180-00 fast input protection, 155-0181-00 input amplifier and 155-0175-00 trigger amplifier (2 ×). It also uses the 155-0076-00 input protection chip initially developed for the 485.

It uses a "feed-beside" scheme implemented with standard low-frequency operational amplifiers to compensate for low-frequency anomalies in the frequency response that are attributed to transistor heating.

The input connector is a special Tek-made part that is exactly 50 Ω. Typical BNC connectors are around 52 Ω.

Links

Tek 7A29P @ amplifier.cd including internal pictures

Pictures

7A29P
7A29P
7A29P
7A29P
7A29P

Internal

7A29P right
7A29P left
Location of the connectors for the 021-0374-00 GPIB decoder on a 7A29P

Custom ICs used in the 7A29P

Page	Model	Part nos	Description	Designers	Used in
155-0076-00	M94	155-0076-00	input protection and probe logic	John Addis • Wink Gross	465 • 485 • 7A29 • 7A29P • 11A52 • 11A71 • 11A72 • SCD1000
155-0164-00	H526(?)	155-0164-00	time slot switch		7A16P • 7B90P • 7A29P
155-0175-00	H476	155-0175-00 • 155-0175-05	broadband amplifier	John Addis • Wink Gross • Carl Battjes	7904A • 7912HB • 7934 • 7104 • R7103 • 7A29 • 7A29P • 7F10 • 067-0587-02 • 067-0587-10 • 11A71 • SCD1000 • EG&G N-AM-173A
155-0180-00	H489	155-0180-00	fast input protection	John Addis • Wink Gross	7A29 • 7A29P • 7F10 • 11A71
155-0181-00	H500	155-0181-00	input amplifier	John Addis • Wink Gross	7A29 • 7A29P • 7F10 • 11A71

@@ Line 18: / Line 18: @@
 {{Spec | Bandwidth          | 750 MHz (in [[7912HB]]) }}
 {{Spec | Input impedance    | 50 Ω}}
-{{Spec | Max. input         | max. 5 V<sub>RMS</sub> or 25V peak; max. 100 V additional DC component in AC mode }}
+{{Spec | Max. input         | max. 5 V<sub>RMS</sub> or 25 V peak; max. 100 V additional DC component in AC mode }}
 {{Spec | Deflection         | 10 mV/div to 1 V/div, 1-2-5, ±2%; variable 2.5:1, reduced bandwidth }}
 {{Spec | Channels           | Single channel }}