Datasheet

LTC2442
28
2442fa
For more information www.linear.com/LTC2442
30
29 21
31
7
8
6
9
28
11
13
12
17
18
12
10
13
2
1
5
3
6
35
2
2
6
6
5
5
1
3
4
1
33
2
4
36
34
3
26
27
25
19
14
15
4
4 5 32 24
REF
+
REF
–
CH0
CH1
CH2
CH3
COM
ADCINB
ADCINA
OUTA
–INA
OUTB
–INB
CS
SCK
SD0
SDI
BUSY
F
O
EXT
MUOUTA
MUXOUTB
+INA
+INB
LTC2442
U1
GND GND GND V
–
V
CC
V
+
IN
GND
OUT
TRIM
–
+
2.5V 5V
0.1µF
C13
0.1µF
C8
X0
X1
Y0
Y1
Z0
Z1
INH
X
Y
Z
SDI
CS
SCK
A
B
C
V
CC
V
EE
GND
11
10
9
5V
SDO
5k
R21
1.8k
R22
74HC4053
U4
–2.5V
–2.5V
–2.5V
5V
–2.5V
2.5V
–5V
4.7µF
C15
C14
0.1µF
0.1µF
C17
0.1µF
C9
C10
0.1µF
1Ω
R20
R1
40k
5k
R3
5k
R4
R5
8.88k
R10
7.5k
R9
10k
30k
R6
5V
V
IN1
5V
V
IN2
–5V
LTC2050HV
U2
LT1236N
U3
REF
+
REF
+
–2.5V
–2.5V
MMBT3904
Figure 20. Scaling Inputs for ±10V Range
applications inForMation