Tektronix 7A12
Dual Channel Amplifier Plug In
Description
This Amplifier Plug In is for use with the 7000 Series mainframes.
It is the basic building block for 3 or 4 trace operation.
It features constant bandwidth for all deflection factors, 5 operating modes, trigger source selectivity, trace OFFSET with +1000 div range, color keyed control grouping, and a trace IDENTIFY function.
Internal gain and compensation circiuts are automatically switched to the setted V/DIV deflection factor.
The amplifier can handle a DC offset of at least +/-500 DIV for viewing low AC signals in the presence of a high DC voltage.
Key Points
Deflection Gain Accuracy within 2% at a Gain of 10mV/DIV
Time Delay between Channels 500ps or less
Input Impedance about 1 Meg Ohm parallel 24pF
Common Mode Rejection at 40MHz 10:1 or less
Maximum Input Gate Current about 0.4nA to 2nA from 0°C to 50°C
DC Drift with ambient 100µV/°C or 0.01DIV/°C whichever is greater
Specifications
Bandwidth: DC to 105MHz
Deflection Factor: 5mV/div to 5V/div
Input R and C: 1Mohm within 2%; 24 pF within 1 pF for all deflection factors
