MAX5488：Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers

The MAX5487/MAX5488/MAX5489 dual, linear-taper, digital potentiometers function as mechanical potentiometers with a simple 3-wire SPI™-compatible digital interface that programs the wipers to any one of 256 tap positions. These digital potentiometers feature a nonvolatile memory (EEPROM) to return the wipers to their previously stored positions upon power-up. The MAX5487 has an end-to-end resistance of 10kΩ, while the MAX5488 and MAX5489 have resistances of 50kΩ and 100kΩ, respectively. These devices have a low 35ppm/°C end-to-end temperature coefficient, and operate from a single +2.7V to +5.25V supply. The MAX5487/MAX5488/MAX5489 are available in 16-pin 3mm x 3mm x 0.8mm thin QFN or 14-pin TSSOP packages. Each device is guaranteed over the extended -40°C to +85°C temperature range.

Key Features

Wiper Position Stored in Nonvolatile Memory (EEPROM) and Recalled Upon Power-Up or Recalled by an Interface Command
3mm x 3mm x 0.8mm, 16-Pin Thin QFN or 14-Pin TSSOP Packages
±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider Mode)
256 Tap Positions
35ppm/°C End-to-End Resistance Temperature Coefficient
5ppm/°C Ratiometric Temperature Coefficient
10kΩ, 50kΩ, and 100kΩ End-to-End Resistance Values
SPI-Compatible Serial Interface
Reliability
- 200,000 Wiper Store Cycles
- 50-Year Wiper Data Retention
+2.7V to +5.25V Single-Supply Operation

MAX5487, MAX5488, MAX5489: Functional Diagram

Applications/Uses

Audio Volume Control
LCD Screen Adjustment
Low-Drift Programmable Filters
Low-Drift Programmable-Gain Amplifiers
Mechanical Potentiometer Replacement

DataSheet

title	Download file
MAX5487-MAX5489 Data Sheet	MAX5487-MAX5489.pdf

Parametrics

Part Number	Taper	POTs	Control Interface	Wiper Memory	Steps	R_END-TO-END (kΩ)	Res. Tol. (%)	Temp. Coeff. (ppm/°C)	Wiper Resistance (Ω)	I_CC @5V (µA)	Package/Pins	Budgetary Price
Part Number	Taper	POTs	Control Interface	Wiper Memory	Steps	R_END-TO-END (kΩ)	Res. Tol. (%)	typ	typ	max	Package/Pins	See Notes
MAX5487	Linear	2	3-Wire Serial SPI	Non-Volatile	256	10	25	35	325	1	TQFN/16 TSSOP/14	$1.89 @1k
MAX5488						50					TQFN/16 TSSOP/14
MAX5489						100					TQFN/16 TSSOP/14

Design kits & evaluation modules

Quality and Environmental Data

MAX5488.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX5488ETE	No Longer Available	MAX5488ETE+	TQFN,;16 pin;9.6 mm²	-40°C to +85°C	No
MAX5488ETE#G16	No Longer Available	MAX5488ETE+	TQFN,;16 pin;9.6 mm²	-40°C to +85°C	No
MAX5488ETE#TG16	No Longer Available	MAX5488ETE+T	TQFN,;16 pin;9.6 mm²	-40°C to +85°C	No
MAX5488ETE+	Active		TQFN,;16 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX5488ETE+T	Active		TQFN,;16 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX5488ETE-T	No Longer Available	MAX5488ETE+T	QFN;16 pin	-40°C to +85°C	See data sheet
MAX5488EUD+	Active		TSSOP,;14 pin;33.4 mm²	-40°C to +85°C	Lead Free
MAX5488EUD+T	Active		TSSOP,;14 pin;33.4 mm²	-40°C to +85°C	Lead Free

MAX5487-MAX5489.pdf MAX5489

MAX5488.pdf MAX5488