7A29P
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 VRMS 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
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7A29P
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7A29P
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7A29P
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7A29P
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7A29P
Internal
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7A29P right
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7A29P left
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Location of the connectors for the 021-0374-00 GPIB decoder on a 7A29P
Parts
Some Parts Used in the 7A29P
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 155-0076-00 | 155-0076-00 | Monolithic integrated circuit | input protection and probe logic | 465 • 485 • 7A29 • 7A29P • 11A52 • 11A71 • 11A72 • SCD1000 |
| 155-0164-00 | 155-0164-00 | Hybrid integrated circuit | time slot switch | 7A16P • 7B90P • 7A29P |
| 155-0175-00 | 155-0175-00 • 155-0175-05 | Monolithic integrated circuit | broadband amplifier | 7904A • 7912HB • 7934 • 7104 • R7103 • 7A29 • 7A29P • 7F10 • 067-0587-02 • 067-0587-10 • 11A71 • SCD1000 • EG&G N-AM-173A |
| 155-0180-00 | 155-0180-00 | Hybrid integrated circuit | fast input protection | 7A29 • 7A29P • 7F10 • 11A71 |
| 155-0181-00 | 155-0181-00 | Hybrid integrated circuit | input amplifier | 7A29 • 7A29P • 7F10 • 11A71 |