Datasheet

MAX14778
Dual ±25V Above- and Below-the-Rails
4:1 Analog Multiplexer
9Maxim Integrated
Pin Description
Pin Configuration
PIN NAME FUNCTION
1 BCOM MUX B Common Terminal
2 V
P
Positive Charge-Pump Output. Bypass V
P
to GND with a 100nF 50V ceramic capacitor.
3 GND Ground
4 V
N
Negative Charge-Pump Output. Bypass V
N
to GND with a 100nF 50V ceramic capacitor.
5 ACOM MUX A Common Terminal
6 A0 MUX A Bidirectional Analog Input/Output 0
7 A1 MUX A Bidirectional Analog Input/Output 1
8 A2 MUX A Bidirectional Analog Input/Output 2
9 A3 MUX A Bidirectional Analog Input/Output 3
10 ENA MUX A Enable Input
11 SA0 MUX A Channel Select Input 0
12 SA1 MUX A Channel Select Input 1
13 V
DD
Power-Supply Input. Bypass V
DD
to GND with a 1FF ceramic capacitor.
14 SB1 MUX B Channel Select Input 1
15 SB0 MUX B Channel Select Input 0
16 ENB MUX B Enable Input
17 B3 MUX B Bidirectional Analog Input/Output 3
18 B2 MUX B Bidirectional Analog Input/Output 2
19 B1 MUX B Bidirectional Analog Input/Output 1
20 B0 MUX B Bidirectional Analog Input/Output 0
— EP Exposed Pad. Connect EP to V
N
. EP is not intended as an electrical connection point.
MAX14778
TQFN
5mm x 5mm
TOP VIEW
19
20
*EP
+
18
17
7
6
8
V
P
V
N
ACOM
9
BCOM
SB1 SA1 SA0 SB0
12
B2
45
15 14 12 11
B1
B0
*CONNECT EXPOSED PAD TO V
N
.
A3
A2
A1
A0
GND
V
DD
3
13
B3
16
10
ENA
ENB