Datasheet

AD5170
Rev. G | Page 4 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS: 2.5 kΩ
V
DD
= 5 V ± 10% or 3 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 −2 ±0.1 +2 LSB
Resistor Integral Nonlinearity
2
R-INL R
WB
, V
A
= no connect −14 ±2 +14 LSB
Nominal Resistor Tolerance
3
∆R
AB
T
A
= 25°C −20 +55 %
Resistance Temperature Coefficient (∆R
AB
/R
AB
)/∆T 35 ppm/°C
R
WB
(Wiper Resistance) R
WB
Code = 0x00, V
DD
= 5 V 160 200 Ω
DC CHARACTERISTICS—POTENTIOMETER DIVIDER
MODE (SPECIFICATIONS APPLY TO ALL VRs)
Differential Nonlinearity
4
DNL −1.5 ±0.1 +1.5 LSB
Integral Nonlinearity
4
INL −2 ±0.6 +2 LSB
Voltage Divider Temperature Coefficient (∆V
W
/V
W
)/∆T Code = 0x80 15 ppm/°C
Full-Scale Error V
WFSE
Code = 0xFF −14 −5.5 0 LSB
Zero-Scale Error V
WZSE
Code = 0x00 0 4.5 12 LSB
RESISTOR TERMINALS
Voltage Range
5
V
A
, V
B
, V
W
GND V
DD
V
Capacitance A, Capacitance B
6
C
A
, C
B
f = 1 MHz, measured to GND,
code = 0x80
45 pF
Capacitance W
6
C
W
f = 1 MHz, measured to GND,
code = 0x80
60 pF
Shutdown Supply Current
7
I
A_SD
V
DD
= 5.5 V 0.01 1 μA
Common-Mode Leakage I
CM
V
A
= V
B
= V
DD
/2 1 nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High (SDA and SCL)
8
V
IH
V
DD
= 5 V 0.7 V
DD
V
DD
+ 0.5 V
Input Logic Low (SDA and SCL)
8
V
IL
V
DD
= 5 V −0.5 +0.3 V
DD
V
Input Logic High (AD0 and AD1) V
IH
V
DD
= 3 V 2.1 V
Input Logic Low (AD0 and AD1) V
IL
V
DD
= 3 V 0.6 V
Input Current I
IL
V
IN
= 0 V or 5 V ±1 μA
Input Capacitance
6
C
IL
5 pF
POWER SUPPLIES
Power Supply Range V
DD RANGE
2.7 5.5 V
OTP Supply Voltage
8, 9
V
DD_OTP
T
A
= 25°C 5.6 5.7 5.8 V
Supply Current I
DD
V
IH
= 5 V or V
IL
= 0 V 3.5 6 μA
OTP Supply Current
8, 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 33 μW
Power Supply Sensitivity PSS
V
DD
= 5 V ± 10%, code =
midscale
±0.02 ±0.08 %/%