
LTC6990
24
6990fc
For more information www.linear.com/LTC6990
TYPICAL APPLICATIONS
Isolated V
→ F Converter. VIN Provided by Isolated Measurement Circuit.
5s Rise/Fall Time of Isolator Limits fMAX to 60kHz
6990 TA08
LTC6990
5V
365
3.3V
OE
GND
SET
OUT
V+
DIV
1M
523k
412 fOUT
157k
VIN
0V TO 5V
75k
5V
MOC207M
6990 TA07
LTC6990
5V
OE
GND
SET
OUT
V+
DIV
1M
PIEZO ALARM
MURATA
PKM29-340
f = 4kHz
10k
ON
OFF
523k
392k
5V
Direct Piezo Alarm Driver. Adjust Frequency for Maximum Alarm Sound Pressure
(Maximum Annoyance for Best Effect)