8

are best connected to the area of ground inside the

package outline to reduce the circulating current path

length, if possible.

Using the EL2021 without External Transistors

By connecting both drive pins to the output pin, the EL2021

can be used as a stand-alone driver, not requiring the

external transistors. The EL2021 is good for more than

50mA in this mode. The output impedance rises to 12

Ω,

however, and the current sense and high-impedance mode

are not available. The ripple seen in slew edges using the

external transistors is largely absent from the stand-alone

waveshapes; and overshoot is markedly improved at

VSR > 1V, especially with large capacitive loads.

Typical Applications

100V/µS HIGH-CURRENT PIN DRIVER

OUTPUTTING TTL LEVELS

EL2021

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