MAX5527 Просмотр технического описания (PDF) - Maxim Integrated

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MAX5527

One-Time Programmable, Linear-Taper Digital Potentiometers

Maxim Integrated 

One-Time Programmable, Linear-Taper Digital

Potentiometers

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +5.5V, VH = VDD, VL = GND, TA = -40°C to +105°C, unless otherwise noted. Typical values are at VDD = +5.0V, TA

= +25°C.) (Note 1)

PARAMETER

DIGITAL INPUTS (CS, U/D)

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Input High Voltage

VIH

0.7 x

VDD

V

Input Low Voltage

VIL

Input Current

IIN

Input Capacitance

CIN

TIMING CHARACTERISTICS (Note 4)

U/D Mode to CS Setup Time

tCU

U/D Mode to CS Hold Time

tCI

CS to U/D Step Hold Time

tIC

U/D Step Low Time

tIL

U/D Step High Time

tIH

Wiper Settling Time

tIW

PV Rising Edge to CS Falling

Edge

tPC

Figures 2 and 3

Figures 2 and 3

Figures 2 and 3

Figures 2 and 3

Figures 2 and 3

CL = 0pF, Figures 2 and 3 (Note 5)

Figure 5

0.3 x

VDD

V

±0.1

±1

µA

5

pF

50

ns

50

ns

0

ns

100

ns

100

ns

400

ns

1

ms

CS Falling Edge to PV Falling

Edge

tCP

Figure 5

5

ms

CS Step Low Time

CS Step High Time

PV Falling Edge to CS Rising

Edge

tCL

Figure 5

tCH

Figure 5

tPH

Figure 5

5

ms

5

ms

1

ms

U/D Frequency

Power-Up Time

POWER SUPPLY

Supply Voltage

Static Supply Current

Programming Voltage

Programming Current

fU/DMAX

tUP

(Note 6)

VDD

IDD

CS = U/D = GND or VDD

PV

TA < +50°C

TA ≥ +50°C

IPV

VPV = 11V

5

MHz

1

ms

2.7

5.5

V

1.5

µA

10.45

11.00

11.55

V

11.55

4

5

mA

Note 1: All devices are production tested at TA = +25°C, and are guaranteed by design for TA = -40°C to +105°C.

Note 2: The wiper resistance is measured by driving the wiper terminal with a source of 20µA for the MAX5527, 40µA for the

MAX5528, and 200µA for the MAX5529.

Note 3: Wiper at midscale with a 10pF load.

Note 4: Digital timing is guaranteed by design, not production tested.

Note 5: Wiper setting time is measured for a single step from U/D transition until wiper voltage reaches 90% of final value.

Note 6: Power-up time is the period of time from when the power supply is applied, until the serial interface is ready for writing.

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