Datasheet

PIN
NAME FUNCTION
MAX5391
(TQFN-EP)
MAX5393
(TSSOP)
1 3 HB
Resistor B High Terminal. The voltage at HB can be higher or lower than the voltage at LB.
Current can ow into or out of HB.
2 4 WB Resistor B Wiper Terminal
3 2 LB
Resistor B Low Terminal. The voltage at LB can be higher or lower than the voltage at HB.
Current can ow into or out of LB.
4 5 I.C. Internally Connected. Connect to GND.
5 1 GND Ground
6, 11, 13 10 N.C. No Connection. Not internally connected.
7 6 BYP
Internal Power-Supply Bypass. For additional charge-pump ltering, bypass to GND with a
capacitor close to the device.
8 7
CS
Active-Low Chip-Select Input
9 8 DIN Serial-Interface Data Input
10 9 SCLK Serial-Interface Clock Input
12 11 V
DD
Power-Supply Input. Bypass V
DD
to GND with a 0.1µF capacitor close to the device.
14 13 HA
Resistor A High Terminal. The voltage at HA can be higher or lower than the voltage at LA.
Current can ow into or out of HA.
15 12 WA Resistor A Wiper Terminal
16 14 LA
Resistor A Low Terminal. The voltage at LA can be higher or lower than the voltage at HA.
Current can ow into or out of LA.
— — EP Exposed Pad (MAX5391 Only). Connect to GND.
15
16
14
13
6
5
7
WB
I.C.
8
HB
N.C. DIN V
DD
1 2
HA
4
12 11 9
WA
LA
BYP
N.C.
GND
*EP
*EP = EXPOSED PAD
MAX5391
LB SCLK
3
10
N.C.
TOP VIEW
CS
+
TOP VIEW
14
13
12
11
10
9
8
1
2
3
4
5
6
7
LA
HA
WA
V
DD
WB
HB
LB
GND
MAX5393
N.C.
SCLK
DINCS
BYP
I.C.
+
MAX5391/MAX5393 Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
www.maximintegrated.com
Maxim Integrated │ 8
Pin Description
Pin Congurations