MAX5483EUD+ Maxim Integrated Products, MAX5483EUD+ Datasheet

MAX5483EUD+

Manufacturer Part Number

MAX5483EUD+

Description

IC DGTL POT 10BIT NV 14-TSSOP

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5481EUD.pdf (20 pages)

Specifications of MAX5483EUD+

Taps

1024

Resistance (ohms)

10K

Number Of Circuits

Temperature Coefficient

35 ppm/°C Typical

Memory Type

Non-Volatile

Interface

SPI, 3-Wire Serial

Voltage - Supply

2.7 V ~ 5.25 V, ±2.5 V ~ 5.25 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

14-TSSOP

Resistance In Ohms

10K

Number Of Pots

Single

Taps Per Pot

1024

Resistance

10 KOhms

Wiper Memory

Non Volatile

Buffered Wiper

Buffered

Digital Interface

3-Wire (SPI)

Operating Supply Voltage

2.7 V to 5.25 V

Supply Current

400 uA

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Description/function

1024-Tap 10k Nonvolatile Linear-Taper Digital Potentiometer (Variable Resistor)

Mounting Style

SMD/SMT

Supply Voltage (max)

5.25 V

Supply Voltage (min)

2.7 V

Tolerance

25 %

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX5481–MAX5484 10-bit (1024-tap) nonvolatile,

linear-taper, programmable voltage-dividers and vari-

able resistors perform the function of a mechanical

potentiometer, but replace the mechanics with a pin-

configurable 3-wire serial SPI™-compatible interface or

up/down digital interface. The MAX5481/MAX5482 are

3-terminal voltage-dividers and the MAX5483/MAX5484

are 2-terminal variable resistors.

The MAX5481–MAX5484 feature an internal, non-

volatile, electrically erasable programmable read-only

memory (EEPROM) that stores the wiper position for ini-

tialization during power-up. The 3-wire SPI-compatible

serial interface allows communication at data rates up

to 7MHz. A pin-selectable up/down digital interface is

also available.

The MAX5481–MAX5484 are ideal for applications

requiring digitally controlled potentiometers. Two end-to-

end resistance values are available (10kΩ and 50kΩ) in a

voltage-divider or a variable-resistor configuration (see

the Selector Guide ). The nominal resistor temperature

coefficient is 35ppm/°C end-to-end, and only 5ppm/°C

ratiometric, making these devices ideal for applications

requiring low-temperature-coefficient voltage-dividers,

such as low-drift, programmable gain-amplifiers.

The MAX5481–MAX5484 operate with either a +2.7V to

+5.25V single power supply or ±2.5V dual power sup-

plies. These devices consume 400µA (max) of supply

current when writing data to the nonvolatile memory

and 1.0µA (max) of standby supply current. The

MAX5481–MAX5484 are available in a space-saving

(3mm x 3mm), 16-pin TQFN, or a 14-pin TSSOP pack-

age and are specified over the extended (-40°C to

+85°C) temperature range.

Gain and Offset

Adjustment

LCD Contrast Adjustment

Pressure Sensors

19-3708; Rev 5; 4/10

Note: All devices are specified over the -40°C to +85°C operating

temperature range.

+ Denotes a lead(Pb)-free/RoHS-compliant package.

* EP = Exposed pad.

Ordering Information continued at end of data sheet.

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.

MAX5481ETE+

MAX5481EUD+

PART

________________________________________________________________ Maxim Integrated Products

PIN-PACKAGE

16 TQFN-EP*

14 TSSOP

10-Bit, Nonvolatile, Linear-Taper Digital

Ordering Information

General Description

Low-Drift Programmable

Gain Amplifiers

Mechanical Potentiometer

Replacement

Applications

TOP MARK

ACP

—

♦ 1024 Tap Positions

♦ Power-On Recall of Wiper Position from

♦ 16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin

♦ 35ppm/°C End-to-End Resistance Temperature

♦ 5ppm/°C Ratiometric Temperature Coefficient

♦ 10kΩ and 50kΩ End-to-End Resistor Values

♦ Pin-Selectable SPI-Compatible Serial Interface or

♦ 1µA (max) Standby Current

♦ Single +2.7V to +5.25V Supply Operation

♦ Dual ±2.5V Supply Operation

Selector Guide appears at end of data sheet.

SPI is a trademark of Motorola, Inc.

Pin Configurations continued at end of data sheet.

Nonvolatile Memory

TSSOP Package

Coefficient

Up/Down Digital Interface

TOP VIEW

*SEE FUNCTIONAL DIAGRAM

**CONNECT EXPOSED PAD TO V

*CONNECT EXPOSED PAD TO V

GND

N.C.

Potentiometers

INTERFACE

TQFN

Pin Configurations

MAX5481*

MAX5482*

MAX5483

MAX5484

**EP

*EP

N.C.

Features

Related parts for MAX5483EUD+

MAX5483EUD+ Summary of contents

Page 1

... Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. Ordering Information continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. ♦ 1024 Tap Positions ♦ Power-On Recall of Wiper Position from Nonvolatile Memory ♦ ...

Page 2

Nonvolatile, Linear-Taper Digital Potentiometers ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6. GND............................................................-3.5V to +0. .............................................................-0.3V to +6. ..................................( CS, SCLK(INC), DIN(U/D), ...

Page 3

Nonvolatile, Linear-Taper Digital ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V 0V, V GND +5.0V +25°C, unless otherwise noted.) (Note PARAMETER SYMBOL Full-Scale Wiper-to-End Resistance Zero-Scale ...

Page 4

Nonvolatile, Linear-Taper Digital Potentiometers TIMING CHARACTERISTICS (V = +2.7V to +5.25V 0V, V GND +5.0V +25°C, unless otherwise noted.) (Note PARAMETER SYMBOL ANALOG SECTION Wiper Settling ...

Page 5

Nonvolatile, Linear-Taper Digital (V = 5.0V 0V +25°C, unless otherwise noted DNL vs. CODE (MAX5483) 1 2.7V DD 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 ...

Page 6

Nonvolatile, Linear-Taper Digital Potentiometers (V = 5.0V 0V +25°C, unless otherwise noted DNL vs. CODE (MAX5484) 1 2.7V DD 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 ...

Page 7

Nonvolatile, Linear-Taper Digital (V = 5.0V 0V +25°C, unless otherwise noted WIPER RESISTANCE vs. CODE (VARIABLE RESISTOR +25° 128 ...

Page 8

Nonvolatile, Linear-Taper Digital Potentiometers (Circuit of Figure +25°C, unless otherwise noted.) A TAP-TO-TAP SWITCHING TRANSIENT RESPONSE (MAX5481 10pF W FROM CODE 01 1111 1111 TO CODE 10 0000 0000 1μs/div WIPER ...

Page 9

Nonvolatile, Linear-Taper Digital (MAX5481/MAX5482 Voltage-Dividers) PIN NAME TQFN TSSOP 4– N. SPI/ DIN(U/ SCLK(INC) ...

Page 10

Nonvolatile, Linear-Taper Digital Potentiometers (MAX5483/MAX5484 Variable Resistors) PIN NAME TQFN TSSOP 4– N. D.N. SPI/ DIN(U/D) 11 ...

Page 11

Nonvolatile, Linear-Taper Digital V DD 10-BIT GND NV MEMORY SPI SCLK(INC) INTERFACE DIN(U/D) UP/DOWN INTERFACE NOTE: THE MAX5481/MAX5482 ARE NOT INTENDED FOR CURRENT TO FLOW THROUGH THE WIPER (SEE THE MAX5481/MAX5482 PROGRAMMABLE VOLTAGE-DIVIDER SECTION). ______________________________________________________________________________________ Potentiometers ...

Page 12

Nonvolatile, Linear-Taper Digital Potentiometers V DD GND SCLK(INC) INTERFACE DIN(U/D) UP/DOWN INTERFACE Detailed Description The MAX5481/MAX5482 linear programmable voltage- dividers and the MAX5483/MAX5484 variable resistors feature 1024 tap points (10-bit resolution) (see the Functional Diagrams ). ...

Page 13

Nonvolatile, Linear-Taper Digital 128 256 384 512 640 CODE (DECIMAL) 50kΩ DEVICE SCALES BY A FACTOR OF FIVE Figure 1. Resistance from vs. Code (10k ...

Page 14

Nonvolatile, Linear-Taper Digital Potentiometers Table 2. Command Decoding* CLOCK EDGE Bit Name — — C1 Write Wiper Register Copy Wiper Register Register Copy NV Register ...

Page 15

Nonvolatile, Linear-Taper Digital a) 24-BIT COMMAND/DATA WORD CS SCLK(INC DIN(U/D) b) 8-BIT COMMAND WORD CS SCLK(INC DIN(U/D) Figure 4. Serial SPI-Compatible Interface Format CS 1 ...

Page 16

Nonvolatile, Linear-Taper Digital Potentiometers Table 3. Truth Table CS DIN(U/D) SCLK(INC) ↓ ↓ ↑ ↓ ↑ ↑ ↑ = Low-to-high transition. ↓ = High-to-low ...

Page 17

Nonvolatile, Linear-Taper Digital The MAX5481–MAX5484 feature a low-power standby mode. When the device is not being programmed, it enters into standby mode and supply current drops to 0.5µA (typ). Nonvolatile Memory The internal EEPROM consists of a nonvolatile register ...

Page 18

Nonvolatile, Linear-Taper Digital Potentiometers 5V H MAX5481 MAX5482 W MAX480 L Figure 9. Positive LCD Bias Control Using a Voltage-Divider 5V MAX480 MAX5483 MAX5484 W L Figure 10. Positive LCD Bias Control Using a Variable Resistor Programmable Filter Figure ...

Page 19

... FUNCTIONAL DIAGRAM Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ Ordering Information (continued) PART END-TO-END RESISTANCE (kΩ) MAX5482ETE+ 10 MAX5482EUD+ 10 MAX5483ETE+ 50 MAX5483EUD+ 50 MAX5484ETE+ 10 MAX5484EUD+ 10 Note: All devices are specified over the -40°C to +85°C operating temperature range Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. Pin Configurations (continued) 14 ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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