Data Sheet

AD5172/AD5173

SPECIFICATIONS

analog.com

Rev. J | 4 of 22

Table 1.

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

2 Resistor position nonlinearity error, R-INL, is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper positions.

R-DNL measures the relative step change from the ideal between successive tap positions. Parts are guaranteed monotonic.

3 VA = VDD, VB = 0 V, wiper (VW) = no connect.

4 Specifications apply to all VRs.

5 INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output DAC. VA = VDD and VB = 0 V. DNL specification limits of

±1 LSB maximum are guaranteed monotonic operating conditions.

6 Resistor Terminal A, Resistor Terminal B, and Resistor Terminal W have no limitations on polarity with respect to each other.

7 Guaranteed by design, but not subject to production test.

8 Measured at Terminal A. Terminal A is open circuited in shutdown mode.

9 The minimum voltage requirement on the VIH is 0.7 V × VDD. For example, VIH minimum = 3.5 V when VDD = 5 V. It is typical for the SCL and SDA resistors to be pulled up

to VDD. However, care must be taken to ensure that the minimum VIH is met when the SCL and SDA are driven directly from a low voltage logic controller without pull-up

resistors.

10 Different from the operating power supply; the power supply for OTP is used one time only.

11 Different from the operating current; the supply current for OTP lasts approximately 400 ms for one time only.

12 See Figure 29 for an energy plot during an OTP program.

13 PDISS is calculated from (IDD × VDD). CMOS logic level inputs result in minimum power dissipation.

14 All dynamic characteristics use VDD = 5 V.

ELECTRICAL CHARACTERISTICS: 10 KΩ AND 100 KΩ

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

Table 2.

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

DC CHARACTERISTICS—RHEOSTAT MODE

Resistor Differential Nonlinearity2

R-DNL

RWB, VA = no connect

−1

±0.1

+1

LSB

Resistor Integral Nonlinearity2

R-INL

RWB, VA = no connect

−2.5

±0.25

+2.5

LSB

Nominal Resistor Tolerance3

ΔRAB

TA = 25°C

−20

+20

%

Resistance Temperature Coefficient

(ΔRAB/RAB)/ΔT

35

ppm/°C

Wiper Resistance

RWB

Code = 0x00, VDD = 5 V

160

200

Ω

DC CHARACTERISTICS—POTENTIOMETER DIVIDER

MODE4

Differential Nonlinearity5

DNL

−1

±0.1

+1

LSB

Integral Nonlinearity5

INL

−1

±0.3

+1

LSB

Voltage Divider Temperature Coefficient

(ΔVW/VW)/ΔT

Code = 0x80

15

ppm/°C

Full-Scale Error

VWFSE

Code = 0xFF

−2.5

−1

0

LSB

Zero-Scale Error

VWZSE

Code = 0x00

0

1

2.5

LSB

RESISTOR TERMINALS

Voltage Range6

VA, VB, VW

GND

VDD

V

Capacitance A, B7

CA, CB

f = 1 MHz, measured to GND,

code = 0x80

45

pF

Capacitance W7

CW

f = 1 MHz, measured to GND,

code = 0x80

60

pF

Shutdown Supply Current8

IA_SD

VDD = 5.5 V

0.01

1

µA

Common-Mode Leakage

ICM

VA = VB = VDD/2

1

nA

DIGITAL INPUTS AND OUTPUTS

SDA and SCL

Input Logic High9

VIH

VDD = 5 V

0.7 VDD

VDD + 0.5

V