MAX5402 datasheet(2/9 Pages) MAXIM

2 / 9 page

256-Tap, µPoT, Low-Drift,

Digital Potentiometer

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = +5V, VH = VDD, VL = 0, TA = TMIN to TMAX. Typical values are at VDD = +5V, TA = +25°C, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VDD to GND ..............................................................-0.3V to +6V

DIN, SCLK, CS to GND ............................................-0.3V to +6V

H, L, W to GND .............................................-0.3V to (VDD + 0.3)

Maximum Continuous Current into Pins H, L, and W ...........1mA

Continuous Power Dissipation (TA = +70°C)

8-Pin µMAX (derate 4.1mW/°C above +70°C) ............330mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC PERFORMANCE (Voltage-Divider Mode)

Resolution

Bits

Integral Nonlinearity (Notes 1, 2)

INL

±1/2

LSB

Differential Nonlinearity

(Notes 1, 2)

DNL

±1

LSB

End-to-End Resistor Tempco

TCR

ppm/

°C

Ratiometric Resistor Tempco

ppm/

°C

Full-Scale Error

-6

LSB

Zero-Scale Error

LSB

DC PERFORMANCE (Variable-Resistor Mode)

Resolution

Bits

VDD = +5V

±1

LSB

Integral Nonlinearity

(Notes 1, 3)

INL

VDD = +3V

±3

LSB

VDD = +5V

±1/2

LSB

Differential Nonlinearity

(Notes 1, 3)

DNL

VDD = +3V

±1/2

LSB

DC PERFORMANCE (Resistor Characteristics)

VDD = +5V

275

Wiper Resistance (Note 4)

VDD = +3V

550

Ω

Wiper Capacitance

End-to-End Resistance

RHL

7.5

12.5

Ω

DIGITAL INPUTS

Input High Voltage

VIH

0.7 ✕ VDD

Input Low Voltage

VIL

0.3 ✕ VDD

Input Leakage Current

±1.0

µA

Input Capacitance

5pF

TIMING CHARACTERISTICS (ANALOG)

Wiper-Settling Time

To 50% of final value from code 0 to code 128

100

TIMING CHARACTERISTICS (DIGITAL) (Note 5) (Figure 2)

SCLK Clock Period

tCP

100

SCLK Pulse Width High

tCH

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