MAX5401 datasheet(2/8 Pages) MAXIM

Part #	MAX5401

Description	256-Tap SOT-PoT, Low-Drift Digital Potentiometers in SOT23

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Manufacturer	MAXIM [Maxim Integrated Products]

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256-Tap SOT-PoT,

Low-Drift Digital Potentiometers in SOT23

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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

sured at TA = +25°C. Values over full temperature range are guaranteed by design.)

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 + 0.3V)

Maximum Continuous Current into

Pins H, L, and W ...........................................................±1mA

Continuous Power Dissipation (TA = +70°C)

8-Pin SOT23 (derate 8.7mW/°C above +70°C)...........697mW

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

N

8

Bits

Integral Nonlinearity

(Notes 1, 2)

INL

±1/2

LSB

Differential Nonlinearity

(Notes 1, 2)

DNL

±1/2

LSB

End-to-End Resistor Tempco

TCR

50

ppm/

°C

Ratiometric Resistor Tempco

5

ppm/

°C

MAX5400

-0.8

Full-Scale Ratio Error

MAX5401

-0.4

LSB

MAX5400

+0.8

Zero-Scale Ratio Error

MAX5401

+0.4

LSB

POWER SUPPLIES

Supply Voltage

VDD

2.7

5.5

V

VDD = 5V

0.7

5

µA

Supply Current

IDD

CS = SCLK = DIN = VDD

VDD = 2.7V

0.1

µA

DC PERFORMANCE (Variable Resistor Mode)

Resolution

N

8

Bits

VCC = 5V

±1

MAX5400

±1.5

Integral Nonlinearity

(Notes 1, 3)

INL

VCC = 3V

MAX5401

±1

LSB

VCC = 5V

±1/2

Differential Nonlinearity

(Notes 1, 3)

DNL

VCC = 3V

±1/2

LSB

DC PERFORMANCE (Resistor Characteristics)

Wiper Resistance (Note 4)

RW

250

800

Ω

Wiper Capacitance

CW

25

pF

MAX5401

75

100

125

End-to-End Resistance

RHL

MAX5400

37.5

50

62.5

k

Ω

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