Input

Fig 1 – Test Circuit for V

DC TEST CIRCUITS

Fig 2 – Test Circuit for V

Input

V

I

Z

zoff

Fig 3 – Test Circuit for Off

State current

ZR431

4-194

NOTES

input voltage over the full temperature range.

The dynamic output impedance, Rz, is defined as:

∆V

Z

∆I

Z

When the device is programmed with two external

resistors, R1

and R2, (fig 2) , the dynamic

output

impedance of the overall circuit, R’, is defined as:

R’

=R

R1

R2

)

Vmax

Vmin

Vdev = Vmax - Vmin

78