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Data Sheet

AD5259

Rev. C | Page 3 of 24

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

VDD = VLOGIC = 5 V ± 10% or 3 V ± 10%; VA = VDD; VB = 0 V; −40°C < TA < +125°C, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

DC CHARACTERISTICS:

RHEOSTAT MODE

Resistor Differential Nonlinearity

R-DNL

WB, VA = no connect

LSB

5 kΩ

–1

±0.2

10 kΩ

−1

±0.1

50 kΩ/100 kΩ

−0.5

±0.1

+0.5

Resistor Integral Nonlinearity

R-INL

WB, VA = no connect

LSB

5 kΩ

–4

±0.3

10 kΩ

−2

±0.2

50 kΩ/100 kΩ

−1

±0.4

Nominal Resistor Tolerance

ΔR

A = 25°C, VDD = 5.5 V

–30

+30

Resistance Temperature Coefficient

(ΔR

AB x 10

6)/

AB x ΔT)

Code = 0x00/0x80

500/15

ppm/°C

Total Wiper Resistance

Code = 0x00

350

Ω

DC CHARACTERISTICS:

POTENTIOMETER DIVIDER MODE

Differential Nonlinearity

DNL

LSB

5 kΩ

–1

±0.2

10 kΩ

−0.5

±0.1

+0.5

50 kΩ/100 kΩ

−0.5

±0.2

+0.5

Integral Nonlinearity

INL

LSB

5 kΩ

–1

±0.2

10 kΩ

−0.5

±0.1

+0.5

50 kΩ/100 kΩ

−0.5

±0.1

+0.5

Full-Scale Error

WFSE

Code = 0xFF

LSB

5 kΩ

−7

−3

10 kΩ

−4

−1.5

50 kΩ/100 kΩ

−1

−0.4

Zero-Scale Error

WZSE

Code = 0x00

5 kΩ

−40°C < T

A < +85°C

2.5

LSB

+85°C < T

A < +125°C

LSB

10 kΩ

−40°C < T

A < +85°C

LSB

+85°C < T

A < +125°C

LSB

50 kΩ/100 kΩ

0.2

0.5

LSB

Voltage Divider Temperature

Coefficient

(∆V

W x 10

6)/

W x ∆T)

Code = 0x00/0x80

60/5

ppm/°C

RESISTOR TERMINALS

Voltage Range

A, B, W

GND

Capacitance A, B

A, B

f = 1 MHz, measured to GND,

code = 0x80

Capacitance W

f = 1 MHz, measured to GND,

code = 0x80

Common-Mode Leakage

A = VB = VDD/2

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