文档介绍：DESIGN SHOWCASE
10µA
IC1
7µA
+5V
IC1 ( 1) 3µA 10µA
(
)
( 2) R1
CMOS 74HC
74HC14 + +11V +11V
( ) IC1
(<1µA) 5V 74HC04 ( MAX836) (
10mA ! 74HC14 )
MAX931
/ IC SO-8
µMAX( MAX837 SOT )
+3V 3 3µA MAX837
4/6/98 Electronic
CMOS A Design
VCC
SUPPLY CURRENT vs. VIN
VCC 2 100,000
V+
IC1 HC04, 5V
LDR1 10,000
VT931 MAX837 HC14, 3V
(VACTEC) HC14, 5V
A) 1000
3 IN µ
OUT 4
R1 OUTPUT 100
HC04, 3V
REF
10
SUPPLY CURRENT (
1
MAX837,
GND
1 03412 5
VIN (V)
1. R1 2. 1 IC1 (
MAX837 )
10