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7A13: Difference between revisions
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The Tektronix 7A13 is a "differential comparator" vertical plug-in for [[7000-series scopes]], i.e. a fast differential amplifier with adjustable DC offset. | The Tektronix 7A13 is a "differential comparator" vertical plug-in for [[7000-series scopes]], i.e. a fast differential amplifier with adjustable DC offset. | ||
Older versions display the comparison voltage through a mechanical dial, newer versions through an LED panel meter. | Older versions display the comparison (offset) voltage through a mechanical dial, newer versions through an LED panel meter. in addition, this voltage is brought out through a front panel connector so it can be measured externally. | ||
==Specifications== | ==Specifications== | ||
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* Deflection factor 1 mV/Div – 5 V/Div (1–2–5 sequence) | * Deflection factor 1 mV/Div – 5 V/Div (1–2–5 sequence) | ||
* Common Mode range: at least +10V / -10V from 1 mV/Div to 50 mV/Div; | * Common Mode range: at least +10V / -10V from 1 mV/Div to 50 mV/Div; | ||
* Overdrive Recovery: to within | * Overdrive Recovery: to within 2 mV in 1µs (at 1 mV/Div) | ||
* CMRR: at least 10,000:1 for 10 Vpp or less, 100 kHz to 1 MHz, decreasing to 500:1 at 10 MHz with 1 | * CMRR: at least 10,000:1 for 10 Vpp or less, 100 kHz to 1 MHz, decreasing to 500:1 at 10 MHz with 1 V<sub>p-p</sub>, 200:1 at 20 MHz with 1 V<sub>p-p</sub>. | ||
* Input impedance: 1 MΩ || 20 pF | * Input impedance: 1 MΩ || 20 pF | ||
* Comparison voltage range: 0V – +/-10V | * Comparison voltage range: 0V – +/-10V | ||