Datasheet

AD5247 Data Sheet
Rev. F | Page 4 of 20
ELECTRICAL CHARACTERISTICS10 kΩ, 50 kΩ, AND 100 kΩ VERSIONS
V
DD
= 5 V ± 10% or 3 V ± 10%, V
A
= V
DD
, −40°C < T
A
< +125°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICSRHEOSTAT MODE
Resistor Differential Nonlinearity
2
R-DNL R
WB
, V
A
= no connect −1 ±0.1 +1 LSB
Resistor Integral Nonlinearity
2
R-INL R
WB
, V
A
= no connect −2 ±0.25 +2 LSB
Nominal Resistor Tolerance
3
∆R
AB
20 +20 %
Resistance Temperature Coefficient
3
∆R
AB
/∆T 45 ppm/°C
Output Resistance R
WB
Code = 0x00 75 300
DC CHARACTERISTICSPOTENTIOMETER
DIVIDER MODE
Differential Nonlinearity
4
DNL −1 ±0.1 +1 LSB
Integral Nonlinearity
4
INL −1 ±0.2 +1 LSB
Voltage Divider Temperature Coefficient ∆V
W
/∆T Code = 0x40 15 ppm/°C
Full-Scale Error (50 kΩ, 100 kΩ) V
WFSE
Code = 0x7F −1 −1 0 LSB
Zero-Scale Error (50 kΩ, 100 kΩ)
V
WZSE
Code = 0x00
0.4
1
LSB
Full-Scale Error (10 kΩ) V
WFSE
Code = 0x7F −2 0.5 0 LSB
Zero-Scale Error (10 kΩ) V
WZSE
V
DD
= 4.5 V to 5.5 V, code = 0x00 0 0.5 1 LSB
V
DD
= 2.7 V to 4.4 V, code = 0x00 0 0.5 1.2 LSB
RESISTOR TERMINALS
Voltage Range
5
V
A,
V
W
GND V
DD
V
Capacitance A
6
C
A
f = 1 MHz, measured to GND,
code = 0x40
45 pF
Capacitance W
6
C
W
f = 1 MHz, measured to GND,
code = 0x40
60 pF
Common-Mode Leakage I
CM
V
A
= V
DD
/2 1 nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High V
IH
V
DD
= 5 V 2.4 V
Input Logic Low
V
IL
V
DD
= 5 V
0.8
V
Input Logic High V
IH
V
DD
= 3 V 2.1 V
Input Logic Low 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
Output Logic Low (SDA)
V
OL
I
OL
= 3 mA
0.4
V
I
OL
= 6 mA 0.6 V
POWER SUPPLIES
Power Supply Range V
DD RANGE
2.7 5.5 V
Supply Current
I
DD
V
DD
= 5.5 V; V
IH
= V
DD
or V
IL
= GND
3
7
µA
V
DD
= 5 V; V
IH
= V
DD
or V
IL
= GND 2.5 5.2 µA
V
DD
= 3.3 V; V
IH
= V
DD
or V
IL
= GND 0.9 2 µA
Power Dissipation
7
P
DISS
V
IH
= 5 V or V
IL
= 0 V, V
DD
= 5 V 40 µW
Power Supply Sensitivity PSSR V
DD
= 5 V ± 10%, code = midscale ±0.01 ±0.02 %/%