AD5235_15 datasheet(4/32 Pages) AD

Il numero della parte	AD5235

Spiegazioni elettronici	Nonvolatile Memory, Dual 1024-Position Digital Potentiometer

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Produttore elettronici	AD [Analog Devices]

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4 / 32 page

AD5235

Data Sheet

Rev. F | Page 4 of 32

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS—25 kΩ, 250 kΩ VERSIONS

VDD = 2.7 V to 5.5 V, VSS = 0 V; VDD = 2.5 V, VSS = −2.5 V, VA = VDD, VB = VSS, −40°C < TA < +85°C, unless otherwise noted.

These specifications apply to versions with a date code 1209 or later.

Table 1.

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

DC CHARACTERISTICS—RHEOSTAT

MODE (All RDACs)

Resistor Differential Nonlinearity2

R-DNL

RWB

−1

+1

LSB

Resistor Integral Nonlinearity2

R-INL

RWB

−2

+2

LSB

Nominal Resistor Tolerance

∆RAB/RAB

−8

+8

%

Resistance Temperature Coefficient

(∆RAB/RAB)/∆T × 106

35

ppm/°C

Wiper Resistance

RW

IW = 1 V/RWB, code = midscale

VDD = 5 V

30

60

Ω

VDD = 3 V

50

Ω

Nominal Resistance Match

RAB1/RAB2

±0.1

%

DC CHARACTERISTICS—

POTENTIOMETER DIVIDER MODE

(All RDACs)

Resolution

N

10

Bits

Differential Nonlinearity3

DNL

−1

+1

LSB

Integral Nonlinearity3

INL

−1

+1

LSB

Voltage Divider Temperature

Coefficient

(∆VW/VW)/∆T × 106

Code = midscale

15

ppm/°C

Full-Scale Error

VWFSE

Code = full scale

−6

0

LSB

Zero-Scale Error

VWZSE

Code = zero scale

0

4

LSB

RESISTOR TERMINALS

Terminal Voltage Range4

VA, VB, VW

VSS

VDD

V

Capacitance Ax, Bx5

CA, CB

f = 1 MHz, measured to GND,

code = midscale

11

pF

Capacitance Wx5

CW

f = 1 MHz, measured to GND,

code = midscale

80

pF

Common-Mode Leakage Current5, 6

ICM

VW = VDD/2

0.01

±1

µA

DIGITAL INPUTS AND OUTPUTS

Input Logic High

VIH

With respect to GND, VDD = 5 V

2.4

V

Input Logic Low

VIL

With respect to GND, VDD = 5 V

0.8

V

Input Logic High

VIH

With respect to GND, VDD = 3 V

2.1

V

Input Logic Low

VIL

With respect to GND, VDD = 3 V

0.6

V

Input Logic High

VIH

With respect to GND, VDD = +2.5 V,

VSS = −2.5 V

2.0

V

Input Logic Low

VIL

With respect to GND, VDD = +2.5 V,

VSS = −2.5 V

0.5

V

Output Logic High (SDO, RDY)

VOH

RPULL-UP = 2.2 kΩ to 5 V (see

Figure 38)

4.9

V

Output Logic Low

VOL

IOL = 1.6 mA, VLOGIC = 5 V (see

Figure 38)

0.4

V

Input Current

IIL

VIN = 0 V or VDD

±1

µA

Input Capacitance5

CIL

5

pF

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