Datasheet

LTC1992 Family
38
1992fb
TYPICAL APPLICATIONS
Interfacing a Bipolar, Ground Referenced, Single-Ended Signal to a Unipolar Single Supply,
Differential Input ADC (V
IN
= 0V Gives a Digital Mid-Scale Code)
Compact, Unipolar Serial Data Conversion
Zero Components, Single-Ended Adder/Subtracter
–
–
+
+
LTC1992
3
6
V
OCM
V
MID
0.1μF
100pF
7
6
5
13.3k
40k
4
5
2
7
8
1
10k
10k
5V
13.3k
40k
5V
10k
10k
100Ω
100Ω
0.1μF
+IN
V
REF
V
CC
2
18
3
4
1992 TA02a
–IN
1μF
SCK
SDO
CONV
LTC1864
SERIAL
DATA
LINK
GND
0VV
IN
2.5V
–2.5V
–
–
+
+
LTC1992-2
3
6
V
OCM
V
MID
0.1μF
100pF
7
6
5
4
5
2
7
8
1
100Ω
5V
100Ω
0.1μF
+IN
V
REF
V
CC
2
18
3
4
1992 TA03a
–IN
1μF
SCK
SDO
CONV
LTC1864
SERIAL
DATA
LINK
GND
V
IN
2.5V
0V
–
–
+
+
V1 = V
B
+ V
C
– V
A
V2 = V
B
+ V
A
– V
C
V
A
1
4
0.1μF
3
+V
S
–V
S
6
5
2
8
V
C
V
B
V
OCM
LTC1992-2
0.1μF
1992 TA04