LTC2424 Linear Technology, LTC2424 Datasheet - Page 25

• Manufacturer Part Number: LTC2424
• Description: 4-/8-Channel 20-Bit uPower No Latency ADCs
• Manufacturer: Linear Technology

APPLICATIONS
U
20k
20k
20k
20k
20k
20k
20k
INFORMATION
Figure 23. Using the Multiplexer to Produce Programmable Gains of 1 to 128
U
ANALOG
BANDWIDTH
INPUTS
OPTIONAL
Figure 24. Inserting Gain Between the Multiplexer and the ADC Input
10k
10k
10k
10k
10k
10k
10k
10k
LIMIT
C1
0.022 F
5.1k
2
4
8
16
32
64
128
R1
W
10
11
12
13
14
15
17
9
5
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
ZS
V
SET
IN
3
2
R2
5.1K
10
11
12
13
14
15
17
9
5 ZS
+
–
3
2
8-CHANNEL
LTC1050
U
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
+
–
MUX
LTC1050
SET
OPTIONAL GAIN
5V
AND ROLL-OFF
7
4
MUXOUT
5V
200k
1, 6, 16, 18, 22, 27, 28
R3
C2
8-CHANNEL
AV = 1, 2, 4...128
MUX
6
7
6
MUXOUT
1, 6, 16, 18, 22, 27, 28
4
ADCIN
R4
5K
+
7
MAY BE REQUIRED BY OTHER
AMPLIFIERS (IS REQUIRED BY
BIPOLAR AMPLIFIERS)
–
20-BIT
GND
LTC2428
ADC
3
FS
4
ADCIN
+
SET
0.1V TO V
–
V
CC
20-BIT
GND
LTC2428
2, 8
CSMUX
CSADC
ADC
3
FS
24248 F24
SDO
SCK
CLK
D
SET
CC
IN
F
O
V
23
20
25
19
21
24
26
CC
2, 8
CSMUX
CSADC
24248 F23
LTC2424/LTC2428
SDO
SCK
CLK
5V
D
F
IN
O
V
10 F
CC
26
23
20
25
19
21
24
5V
V
1 F
CC
25