AD5254 Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге

Компоненты Описание

производитель

AD5254

Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers

Analog Devices 

AD5253/AD5254

10 kΩ, 50 kΩ, 100 kΩ VERSIONS

VDD = +3 V ± 10% or +5 V ± 10%, VSS = 0 V or VDD/VSS = ±2.5 V ± 10%, VA = VDD, VB = 0 V, –40°C < TA < +85°C, unless otherwise noted.

Table 2.

Parameter

DC CHARACTERISTICS—

RHEOSTAT MODE

Resolution

Resistor Differential Nonlinearity2

Symbol

N

R-DNL

Resistor Nonlinearity2

R-INL

Nominal Resistor Tolerance

Resistance Temperature

Coefficient

Wiper Resistance

ΔRAB/RAB

(ΔRAB/RAB) × 106/ΔT

RW

Channel-Resistance Matching ΔRAB1/ΔRAB2

DC CHARACTERISTICS—

POTENTIOMETER DIVIDER MODE

Differential Nonlinearity3

DNL

Integral Nonlinearity3

INL

Voltage Divider

Temperature Coefficient

Full-Scale Error

(ΔVW/VW) × 106/ΔT

VWFSE

Zero-Scale Error

VWZSE

RESISTOR TERMINALS

Voltage Range4

Capacitance5 A, B

VA, VB, VW

CA, CB

Capacitance5 W

CW

Common-Mode Leakage Current ICM

DIGITAL INPUTS AND OUTPUTS

Input Logic High

VIH

Input Logic Low

VIL

Output Logic High (SDA)

VOH

Output Logic Low (SDA)

VOL

WP Leakage Current

IWP

A0 Leakage Current

IA0

Input Leakage Current

II

(Other than WP and A0)

Input Capacitance5

CI

Conditions

AD5253/AD5254

RWB, RWA = NC, AD5253

RWB, RWA = NC, AD5254

RWB, RWA = NC, AD5253

RWB, RWA = NC, AD5254

TA = 25°C

IW = 1 V/R, VDD = 5 V

IW = 1 V/R, VDD = 3 V

RAB = 10 kΩ, 50 kΩ

RAB = 100 kΩ

AD5253

AD5254

AD5253

AD5254

Code = half scale

Code = full scale, AD5253

Code = full scale, AD5254

Code = zero scale, AD5253

Code = zero scale, AD5254

f = 1 kHz, measured to GND,

code = half scale

f = 1 kHz, measured to GND,

code = half scale

VA = VB = VDD/2

VDD = 5 V, VSS = 0 V

VDD/VSS = +2.7 V/0 V or VDD/VSS = ±2.5 V

VDD = 5 V, VSS = 0 V

VDD/VSS = +2.7 V/0 V or VDD/VSS = ±2.5 V

RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V

RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V

WP = VDD

A0 = GND

VIN = 0 V or VDD

Min

−0.75

−1.00

−0.75

−2.5

−20

−0.5

−1.0

−0.50

−1.5

−1.0

−3

0

0

VSS

2.4

2.1

4.9

Typ 1

±0.10

±0.25

±0.25

±1.0

650

75

200

0.15

0.05

±0.1

±0.3

±0.15

±0.5

15

−0.3

−1

0.3

1.2

85

95

0.01

5

Max Unit

6/8

+0.75

+1.00

+0.75

+2.5

+20

Bits

LSB

LSB

LSB

LSB

%

ppm/°C

130 Ω

300 Ω

%

%

+0.5

+1.0

+0.50

+1.5

LSB

LSB

LSB

LSB

ppm/°C

0

LSB

0

LSB

1.0

LSB

3.0

LSB

VDD

V

pF

pF

1

μA

V

V

0.8

V

0.6

V

V

0.4

V

5

μA

3

μA

±1

μA

pF

Rev. B | Page 5 of 32

Share Link: