Datasheet

AD5171
Rev. D | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS: 5 kΩ, 10 kΩ, 50 kΩ, AND 100 kΩ
V
DD
= 3 V to 5 V ± 10%, V
A
= V
DD
, V
B
= 0 V, −40°C < T
A
< +125°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS RHEOSTAT MODE
Resistor Differential Nonlinearity
2
R-DNL
R
WB
, V
A
= no connect,
R
AB
= 10 kΩ, 50 kΩ, and 100 kΩ
−0.5 ±0.1 +0.5 LSB
R
WB
, V
A
= no connect, R
AB
= 5 kΩ −1 ±0.25 +1 LSB
Resistor Integral Nonlinearity
2
R-INL
R
WB
, V
A
= no connect,
R
AB
= 10 kΩ, 50 kΩ, and 100 kΩ
−1.5 ±0.35 +1.5 LSB
R
WB
, V
A
= no connect, R
AB
= 5 kΩ −1.5 ±0.5 +1.5 LSB
Nominal Resistor Tolerance
3
∆R
AB
/R
AB
−30 +30 %
Resistance Temperature Coefficient (∆R
AB
/R
AB
)/∆T 35 ppm/°C
Wiper Resistance R
W
V
DD
= 5 V 60 115 Ω
DC CHARACTERISTICS POTENTIOMETER DIVIDER
MODE (SPECIFICATIONS APPLY TO ALL RDACs)
Resolution N 6 Bits
Differential Nonlinearity
4
DNL −0.5 ±0.1 +0.5 LSB
Integral Nonlinearity
4
INL −1 ±0.2 +1 LSB
Voltage Divider Temperature Coefficient (∆V
W
/V
W
)/∆T Code = 0x20 5 ppm/°C
Full-Scale Error V
WFSE
Code = 0x3F, R
AB
= 10 kΩ,
50 kΩ, and 100 kΩ
−1 −0.5 0 LSB
Full-Scale Error V
WFSE
Code = 0x3F, R
AB
= 5 kΩ −1.5 0 LSB
Zero-Scale Error V
WZSE
Code = 0x00, R
AB
=10 kΩ,
50 kΩ, and 100 kΩ
0 0.5 1 LSB
Code = 0x00, R
AB
= 5 kΩ 0 2 LSB
RESISTOR TERMINALS
Voltage Range
5
V
A,
V
B,
V
W
With respect to GND V
DD
V
Capacitance A, B
6
C
A,
C
B
f = 1 MHz, measured to GND,
code = 0x20
25 pF
Capacitance W
6
C
W
f = 1 MHz, measured to GND,
code = 0x20
55 pF
Common-Mode Leakage I
CM
V
A
= V
B
= V
DD
/2 1 nA
DIGITAL INPUTS
Input Logic High (SDA and SCL)
7
V
IH
0.7 V
DD
V
DD
+ 0.5 V
Input Logic Low (SDA and SCL)
7
V
IL
−0.5 +0.3 V
DD
V
Input Logic High (AD0) V
IH
V
DD
= 3 V 3.0 V
DD
V
Input Logic Low (AD0) V
IL
V
DD
= 3 V 0 1.0 V
Input Current I
IL
V
IN
= 0 V or 5 V ±1 μA
Input Capacitance
8
C
IL
3 pF
DIGITAL OUTPUTS
Output Logic Low (SDA) V
OL
I
OL
= 6 mA 0.4 V
Three-State Leakage Current (SDA) I
OZ
V
IN
= 0 V or 5 V ±1 μA
Output Capacitance
8
C
OZ
3 pF
POWER SUPPLIES
Power Supply Range V
DD
2.7 5.5 V
OTP Power Supply
7, 9
V
DD_OTP
T
A
= 25°C 4.75 5 5.25 V
Supply Current I
DD
V
IH
= 5 V or V
IL
= 0 V 4 10 μA
OTP Supply Current
7, 10, 11
I
DD_OTP
V
DD_OTP
= 5 V, T
A
= 25°C 100 mA
Power Dissipation
12
P
DISS
V
IH
= 5 V or V
IL
= 0 V, V
DD
= 5 V 0.02 0.055 mW
Power Supply Sensitivity PSSR −0.025 +0.001 +0.025 %/%