MAX5386 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers

19-4599; Rev 0; 4/09
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Dual, 256-Tap, Volatile Low-Voltage
Linear Taper Digital Potentiometers
General Description
The MAX5386/MAX5388 dual, 256-tap, volatile low-voltage
linear taper digital potentiometers offer three end-to-end
resistance values of 10kI, 50kI, and 100kI. Operating
from a single +2.6V to +5.5V power supply these devices
provide a low 35ppm/NC end-to-end temperature
coefficient. The devices feature an SPIK interface.
The small package size, low supply voltage, low sup-
ply current, and automotive temperature range of the
MAX5386/MAX5388 make the devices uniquely suitable
for the portable consumer market, battery backup indus-
trial applications, and the automotive market.
The MAX5386 includes two digital potentiometers in a
voltage-divider configuration. The MAX5388 includes
one digital potentiometer in a voltage-divider configura-
tion and one digital potentiometer in a variable-resistor
configuration. The MAX5386/MAX5388 are specified
over an extended -40NC to +125NC temperature range
and are available in 16-pin, 3mm x 3mm TQFN or 10-pin,
3mm x 5mm FMAX^M packages, respectively.
Applications
Low-Voltage Battery Applications
Portable Electronics
Mechanical Potentiometer Replacement
Offset and Gain Control
Adjustable Voltage References/Linear Regulators
Automotive Electronics
Functional Diagrams appear at end of data sheet.
Features
S Dual, 256-Tap, Linear Taper Positions
S Single +2.6V to +5.5V Supply Operation
S Low (< 1µA) Quiescent Supply Current
S 10kI, 50kI, 100kI End-to-End Resistance Values
S SPI-Compatible Interface
S Power-On Sets Wiper to Midscale
S -40NC to +125NC Operating Temperature Range
Ordering Information
PART
PIN-
PACKAGE
END-TO-END
RESISTANCE (kI)
MAX5386LATE+* 16 TQFN-EP**
10
MAX5386MATE+ 16 TQFN-EP**
50
MAX5386NATE+* 16 TQFN-EP**
100
MAX5388LAUB+* 10 FMAX
10
MAX5388MAUB+* 10 FMAX
50
MAX5388NAUB+* 10 FMAX
100
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future product—contact factory for availability.
**EP = Exposed pad.
Note: All devices are specified over the -40°C to +125°C
operating temperature range.
Functional Diagrams appear at end of data sheet.
Pin Configurations
TOP VIEW
12 11 10 9
N.C. 13
HA 14
WA 15
MAX5386
LA 16 ₊
*EP
1234
8 ^CS
7 N.C.
6 N.C.
5 GND
*EP = EXPOSED PAD.
TQFN
TOP VIEW
GND 1 ⁺
LB 2
HB 3
WB 4
CS 5
MAX5388
µMAX
10 LA
9 WA
8 VDD
7 SCLK
6 DIN
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or visit Maxim’s website at www.maxim-ic.com.