Datasheet

LTC6990
26
6990fc
For more information www.linear.com/LTC6990
TYPICAL APPLICATIONS
6990 TA11
LTC6990
OE
GND
SET
OUT
V
+
DIV
1M
681k10k
+
22k AT 25°C
B = 3964
26k
5V
f
OUT
5V
100k
5V
10k
26k
–
+
LT1490
THERMISTOR: VISHAY NTHS120601N2202J
Full Range Temperature to Frequency Converter. 16kHz to 1kHz from –20°C to 80°C
6990 TA12
LTC6990
OE
GND
SET
OUT
V
+
DIV
187k
1M619k
SFH213
I
PD
5V
f
OUT
5V
222k
5V
24.9k
1000pF
–
+
LT1677
Light to Frequency Converter. f
OUT
≈ –1.4kHz per Microampere of Photo Diode Current, I
PD