LTC2309
TYPICAL APPLICATION
Driving the LTC2309 with 10V Input Signals Using a Precision Attenuator
5V
IN
OUT
1μF
0.1μF
LT1790-2.5
GND
10V
7
5V
450k
50k
8
9
150k
10μF
0.1μF
10μF
0.1μF
–
+
10
4pF
100Ω
47pF
450k
450k
AV
DD
DV
DD
AD1 AD0
6
CH0
1.7k 1.7k
LT1991
1
2
3
LTC2309
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
450k
150k
50k
SCL
SDA
CONTROL
LOGIC
ANALOG
INPUT
MUX
10V
INPUT
SIGNAL
+
–
2
12-BIT
SAR ADC
I C
4pF
LT1991
PORT
(FPGA, CPLD,
DSP, ETC)
4
5
–10V
INTERNAL
2.5V REF
V
REF
2.2μF
REFCOMP
GND
0.1μF
10μF
2309 TA02
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2309f
LT 0208 • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
20
●
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(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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