AD5273

Data Sheet

Rev. J | Page 4 of 20

SPECIFICATIONS

VDD = 2.7 V to 5.5 V, VA < VDD, VB = 0 V, −40°C < TA < +105°C, unless otherwise noted.

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ1

Max

Unit

DC CHARACTERISTICS—RHEOSTAT MODE

Resolution

N

6

Bits

Resistor Differential Nonlinearity2

R-DNL

10 kΩ, 50 kΩ, 100 kΩ

R

WB, VA = NC

−0.5

+0.05

+0.5

LSB

1 kΩ

R

WB, VA = NC

−1

+0.25

+1

LSB

Resistor Nonlinearity2

R-INL

10 kΩ, 50 kΩ, 100 kΩ

R

WB, VA = NC

−0.5

+0.10

+0.5

LSB

1 kΩ

R

WB, VA = NC

−5

+2

+5

LSB

Nominal Resistance Tolerance3

ΔR

AB/RAB

T

A = 25°C

10 kΩ, 50 kΩ, 100 kΩ

−30

+30

%

Nominal Resistance, 1 kΩ

R

AB

0.8

1.2

1.6

kΩ

Rheostat Mode Temperature

Coefficient4

(ΔR

AB/RAB)/∆T

Wiper = NC

300

ppm/°C

Wiper Resistance

R

W

I

W = VDD/R, VDD = 3 V or 5 V

60

100

Ω

DC CHARACTERISTICS—POTENTIOMETER

DIVIDER MODE

Differential Nonlinearity5

DNL

−0.5

+0.1

+0.5

LSB

Integral Nonlinearity5

INL

−0.5

+0.5

LSB

Voltage Divider4 Temperature Coefficient

(ΔV

W/VW)/ΔT

Code = 0x20

10

ppm/°C

Full-Scale Error

V

WFSE

Code = 0x3F

−1

0

LSB

10 kΩ, 50 kΩ, 100 kΩ

−1

0

LSB

1 kΩ

−6

0

LSB

Zero-Scale Error

V

WZSE

Code = 0x00

−6

0

LSB

10 kΩ, 50 kΩ, 100 kΩ

0

1

LSB

1 kΩ

0

5

LSB

RESISTOR TERMINALS

Voltage Range6

V

A, VB, VW

GND

V

DD

V

Capacitance7 A, B

C

A, CB

f = 5 MHz, measured to GND,

code = 0x20

25

pF

Capacitance7 W

C

W

f = 1 MHz, measured to GND,

code = 0x20

55

pF

Common-Mode Leakage

I

CM

V

A = VB = VW

1

nA

DIGITAL INPUTS AND OUTPUTS

Input Logic High (SDA and SCL)8

V

IH

0.7 × V

DD

V

DD + 0.5

V

Input Logic Low (SDA and SCL)8

V

IL

−0.5

0.3 × V

DD

V

Input Logic High (AD0)

V

IH

3.0

V

DD

V

Input Logic Low (AD0)

V

IL

V

IN = 0 V or 5 V

0

0.4

V

Input Logic Current

I

IL

0.01

1

µA

Input Capacitance7

C

IL

3

pF

Output Logic Low (SDA)

V

OL

0.4

V

Three-State Leakage Current

I

OZ

±1

µA

Output Capacitance7

C

OZ

3

pF

POWER SUPPLIES

Power Supply Range

V

DD

2.7

5.5

V

OTP Power Supply8,9

V

DD_OTP

T

A = 25°C

5.0

5.25

5.5

V

Supply Current

I

DD

V

IH = 5 V or VIL = 0 V

0.1

5

µA

OTP Supply Current8,10,11

I

DD_OTP

T

A = 25°C, VDD_OTP = 5 V

100

mA

Power Dissipation12

P

DISS

V

IH = 5 V or VIL = 0 V, VDD = 5 V

0.5

27.5

µW

Power Supply Sensitivity

PSRR

R

AB = 1 kΩ

−0.3

+0.3

%/%

PSRR

R

AB = 10 kΩ, 50 kΩ, 100 kΩ

−0.05

+0.05

%/%