Typical Applications (Continued)
Directly Converting a Low-Level Signal
V
REF
/2
e
256 mV
A mP Interfaced Comparator
For: V
IN
(
a
)
l
V
IN
(
b
)
Output
e
FF
HEX
For: V
IN
(
a
)
k
V
IN
(
b
)
Output
e
00
HEX
1 mV Resolution with mP Controlled Range
V
REF
/2
e
128 mV
1 LSB
e
1mV
V
DAC
s
V
IN
s
(V
DAC
a
256 mV)
Digitizing a Current Flow
TL/H/5671–6
7
