max5386mevkit Maxim Integrated Products, Inc., max5386mevkit Datasheet

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max5386mevkit

Manufacturer Part Number
max5386mevkit
Description
Dual, 256-tap, Volatile Low-voltage Linear Taper Digital Potentiometer
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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
Functional Diagrams appear at end of data sheet.
19-4599; Rev 2; 1/10
Low-Voltage Battery Applications
Portable Electronics
Mechanical Potentiometer Replacement
Offset and Gain Control
Adjustable Voltage References/Linear Regulators
Automotive Electronics
TOP VIEW
*EP = EXPOSED PAD.
N.C.
WA
HA
LA
_______________________________________________________________ Maxim Integrated Products 1
M
13
14
15
16
packages, respectively.
+
General Description
12
1
Dual, 256-Tap, Volatile, Low-Voltage
MAX5386
11
TQFN
Linear Taper Digital Potentiometers
2
10
3
*EP
Applications
9
4
8
7
6
5
CS
N.C.
N.C.
GND
SPI is a trademark of Motorola, Inc.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
S
S
S
S
S
S
S
Note: All devices are specified over the -40°C to +125°C
operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX5388MAUB+
MAX5388LAUB+
MAX5388NAUB+
Dual, 256-Tap, Linear Taper Positions
Single +2.6V to +5.5V Supply Operation
Low (< 1µA) Quiescent Supply Current
10kI, 50kI, 100kI End-to-End Resistance Values
SPI-Compatible Interface
Power-On Sets Wiper to Midscale
-40NC to +125NC Operating Temperature Range
MAX5386MATE+
MAX5386NATE+
MAX5386LATE+
TOP VIEW
PART
GND
WB
HB
CS
LB
1
2
3
4
5
+
MAX5388
PIN-
PACKAGE
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
10 FMAX
10 FMAX
10 FMAX
Ordering Information
µMAX
Pin Configurations
10
9
8
7
6
LA
WA
V
SCLK
DIN
DD
RESISTANCE (kI)
END-TO-END
Features
100
100
10
50
10
50

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max5386mevkit Summary of contents

Page 1

... Applications MAX5388LAUB+ MAX5388MAUB+ MAX5388NAUB+ Note: All devices are specified over the -40°C to +125°C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. SPI is a trademark of Motorola, Inc. µMAX is a registered trademark of Maxim Integrated Products, Inc. 9 TOP VIEW CS 8 N.C. 7 N.C. 6 GND ...

Page 2

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V DD H_, W_ GND ....-0.3V to the lower of (V All Other Pins to GND .............................................-0.3V to +6V Continuous Current in ...

Page 3

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ELECTRICAL CHARACTERISTICS (continued +2.6V to +5.5V +25˚C. ) (Note 1) PARAMETER SYMBOL Total Harmonic Distortion THD+N Plus Noise Wiper Settling Time ...

Page 4

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ( +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 1.0 0 0.6 0 2.6V DD 0.2 0 -40 -25 -10 ...

Page 5

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ( +25°C, unless otherwise noted VARIABLE-RESISTOR DNL vs. TAP POSITION (50kI) 0. 80µA WIPER 0.08 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.10 ...

Page 6

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers ( +25°C, unless otherwise noted VOLTAGE-DIVIDER INL vs. TAP POSITION (50kI) 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0 102 153 ...

Page 7

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers PIN NAME MAX5386 MAX5388 — I. GND 6, 7, 11, 13 — N. DIN 10 ...

Page 8

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Detailed Description The MAX5386/MAX5388 dual, 256-tap, volatile low-volt- age linear taper digital potentiometers offer three end-to- end resistance values of 10kI, 50kI, and 100kI. Each potentiometer consists of 255 fixed resistors in ...

Page 9

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers COMMAND STARTED 9 BITS CS SCLK DIN A0 D7 Figure 2. SPI Digital Interface Format CSO CSS SCLK DS DIN Figure 3. SPI Timing Diagram _______________________________________________________________________________________ ...

Page 10

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Applications Information Variable-Gain Amplifier Figure 4 shows a potentiometer adjusting the gain of a noninverting amplifier. Figure 5 shows a potentiometer adjusting the gain of an inverting amplifier ...

Page 11

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Variable Gain Current to Voltage Converter Figure 8 shows a variable gain current-to-voltage con- verter using a potentiometer as a variable resistor. Figure 9 shows a positive LCD bias control circuit using ...

Page 12

Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers Chip Information PROCESS: BiCMOS 12 _____________________________________________________________________________________ MAX5386 256 HB LATCH DECODER SPI POR WB 256 LATCH DECODER LB GND MAX5388 256 HB ...

Page 13

... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products Revision History DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. PAGES CHANGED — ...

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