2221
The Tektronix 2221 is a portable, 60 MHz, 20 MS/s combination analog / digital storage scope, sister model of 2220 and 2230. The updated model 2221A increased bandwidth to 100 MHz and 100 MS/s.
Recommended cart is the K212.
Key Specifications
| — 2221 — | |
| Analog bandwidth | 60 MHz (50 MHz in 2 mV/Div range), 10 MHz limit switchable |
| Rise time (analog mode) | 5.8 ns (7 ns in 2 mV/Div range) |
| Sampling rate | 20 MS/s single channel, 10 MS/s in ALT or CHOP |
| — 2221A — | |
| Analog bandwidth | 100 MHz (80 MHz in 2 mV/Div range), 20 MHz limit switchable |
| Rise time (analog mode) | 3.5 ns (4.4 ns in 2 mV/Div range) |
| Sampling rate | 100 MS/s single channel, 50 MS/s in ALT or CHOP |
| — Common — | |
| Memory depth | 4 K samples single channel, 2 K per channel in ALT or CHOP |
| Resolution | 8 bits |
| Deflection | 2 mV/Div to 5 V/Div, 1-2-5 |
| Glitch capture | > 100 ns |
| CRT | 8 x 10 cm, P31 phosphor, 14 kV acceleration |
| Outputs | analog X/Y plotter output, 500 mV/Div, pen lift relay contact |
| Power | 90-250 V, 85 W, fan-cooled |
| Weight | 8.2 kg (18 lb.) |
| Features |
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Links
Internals
Custom Tek chips used include 155-0274-00 (A1U130, A1U180), 155-0273-00 (A2U30, A2U80), and 155-0022-00 (A10U2101). There is also a semi-custom part (A10U9208 Display Controller, 156-2452-00).
