Typical Applications (Continued)
Self-Clocking in Free-Running Mode
µP Interface for Free-Running A/D
DS005671-65
*After power-up, a momentary grounding of the WR input is needed to
guarantee operation.
DS005671-66
Operating with “Automotive” Ratiometric Transducers
Ratiometric with VREF/2 Forced
DS005671-68
DS005671-67
=
*V (−) 0.15 V
IN CC
15% of V ≤V
≤85% of V
CC
CC XDR
µP Compatible Differential-Input Comparator with Pre-Set VOS (with or without Hysteresis)
DS005671-69
*See Figure 5 to select R value
=
>
DB7 “1” for V (+)
V (−)+(V /2)
IN REF
IN
Omit circuitry within the dotted area if
hysteresis is not needed
11
www.national.com
NSC [ National Semiconductor ]
