BLOCK DIAGRAM (S6 Package Pin Numbers Shown)
LTC6990
R1 DIV
4
R2
V+
5
4-BIT A/D
CONVERTER
DIGITAL
FILTER
Hi-Z BIT
OE
1
MASTER OSCILLATOR
tMASTER
=
1µs
50kΩ
•
VSET
ISET
Hi-Z WHEN
DISABLED
MCLK
PROGRAMMABLE DIVIDER
÷1, 2, 4, 8, 16, 32, 64, 128
HALT OSCILLATOR
IF ISET < 500nA
ISET
+– 1V
+
–
VSET = 1V
Hi-Z OUTPUT
UNTIL SETTLED
POR
OUT
6
tOUT
2
GND
3
SET
RSET
6990 BD
For more information www.linear.com/LTC6990
6990fc
9