The PICOPROBE® MODEL 12C is a high speed, high input impedance active probe for measuring the internal node voltage of integrated circuits. The input is 1 megohm shunted by 0.1 pf and the rise/fall times are 0.8 ns. This instrument has full dc capability and can be used with any oscilloscope. The Model 12C was specially designed so that when used in conjunction with a high input impedance oscilloscope, signal attenuation is 10:1 and with a 50 Ohm input, signal attenuation is 20:1.

Rugged, dependable and high speed the Model 12C presents a very modest load to the integrated circuit. It can be used to troubleshoot high speed bipolar, NMOS and CMOS circuits-even some short holding time dynamic nodes. Each amplifier is individually optimized for peak performance and reliability. The Model 12C will withstand large input over voltages. The only known failure mode is the accidental breaking or crushing of the probe tip which can be easily replaced. A large selection of replaceable probe tips are available to accommodate a variety of probing needs.