MAX5404 datasheet(3/10 Pages) MAXIM

3 / 10 page

Dual 256-Tap, Low-Drift,

Digital Potentiometers in 10-µMAX

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ELECTRICAL CHARACTERISTICS (continued)

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

unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MAX5403

7.5

12.5

MAX5404

37.5

62.5

End-to-End Resistance

RHL

MAX5405

100

125

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)

MAX5403

100

MAX5404

325

Wiper-Settling Time

MAX5405

650

TIMING CHARACTERISTICS (DIGITAL) (Note 5)

Maximum SCLK Frequency

MHz

SCLK Clock Period

tCP

100

SCLK Pulse Width High

tCH

SCLK Pulse Width Low

tCL

CS Fall to SCLK Rise Setup Time

tCSS

SCLK Rise to CS Rise Hold Time

tCSH

0ns

DIN Setup Time

tDS

DIN Hold Time

tDH

0ns

SCLK Rise to CS Fall Delay

tCS0

CS Rise to SCLK Rise Hold

tCS1

CS Pulse Width High

tCSW

100

POWER SUPPLIES

Supply Voltage

VDD

2.7

5.5

VDD = +5V

0.8

µA

Supply Current

IDD

CS = SCLK = DIN = VDD

VDD = +2.7V

0.1

µA

Note 1: Linearity is defined in terms of the HX to LX code-dependent resistance.

Note 2: The DNL and INL are measured with the potentiometer configured as a voltage divider with HX = VDD and LX = 0. The wiper

terminal is unloaded and measured with an ideal voltmeter.

Note 3: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometer

(Pot A), HA is unconnected and LA = 0. For the 2-terminal potentiometer (Pot B), only LB = 0. At VDD = +5V, the wiper termi-

nal is driven with a source current of 400µA for the 10k

Ω configuration, 80µA for the 50kΩ configuration, and 40µA for the

100k

Ω configuration. At VDD = +3V, 200µA/40µA/20µA for 10kΩ/50kΩ/100kΩ configuration respectively.

Note 4: The wiper resistance is the worst value measured by injecting into WX, a current IW = VDD / RHL.

Note 5: Digital timing is guaranteed by design.

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