MAX5391(2009) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
View to exact match
MAX5391
(Rev.:2009)
(Rev.:2009)
Maxim Integrated
MAX5391 Datasheet PDF : 13 Pages
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Dual 256-Tap, Volatile, Low-Voltage
Linear Taper Digital Potentiometers
Pin Configurations
TOP VIEW
12 11 10 9
N.C. 13
HA 14
WA 15
LA 16
+
MAX5391
*EP
1
2
3
4
8 CS
7 BYP
6 N.C.
5 GND
TOP VIEW
+
GND 1
LB 2
HB 3
WB 4 MAX5393
I.C. 5
BYP 6
CS 7
14 LA
13 HA
12 WA
11 VDD
10 N.C.
9 SCLK
8 DIN
*EP = EXPOSED PAD
Pin Description
PIN
MAX5391 MAX5393
(TQFN-EP) (TSSOP)
1
3
2
4
3
2
4
5
5
1
6, 11, 13
10
7
6
8
7
9
8
10
9
12
11
14
13
15
12
16
14
—
—
NAME
HB
WB
LB
I.C.
GND
N.C.
BYP
CS
DIN
SCLK
VDD
HA
WA
LA
EP
FUNCTION
Resistor B High Terminal. The voltage at HB can be higher or lower than the voltage at
LB. Current can flow into or out of HB.
Resistor B Wiper Terminal
Resistor B Low Terminal. The voltage at LB can be higher or lower than the voltage at HB.
Current can flow into or out of LB.
Internally Connected. Connect to GND.
Ground
No Connection. Not internally connected.
Internal Power-Supply Bypass. For additional charge-pump filtering, bypass to GND with
a capacitor close to the device.
Active-Low Chip-Select Input
Serial-Interface Data Input
Serial-Interface Clock Input
Power-Supply Input. Bypass VDD to GND with a 0.1FF capacitor close to the device.
Resistor A High Terminal. The voltage at HA can be higher or lower than the voltage at
LA. Current can flow into or out of HA.
Resistor A Wiper Terminal
Resistor A Low Terminal. The voltage at LA can be higher or lower than the voltage at HA.
Current can flow into or out of LA.
Exposed Pad (MAX5391 Only). Connect to GND.
8 _______________________________________________________________________________________
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