Datasheet

AD5293
Rev. D | Page 5 of 24
ELECTRICAL CHARACTERISTICS—50 kΩ AND 100 kΩ VERSIONS
V
DD
= 21 V to 33 V, V
SS
= 0 V; V
DD
= 10.5 V to 16.5 V, V
SS
= −10.5 V to −16.5 V; V
LOGIC
= 2.7 V to 5.5 V, V
A
= V
DD
, V
B
= V
SS
,
−40°C < T
A
< +105°C, unless otherwise noted.
Table 3.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS,
RHEOSTAT MODE
Resolution N 10 Bits
Resistor Differential Nonlinearity
2
R-DNL R
WB
−1 +1 LSB
Resistor Integral Nonlinearity
2
R-INL −2 +2 LSB
Nominal Resistor Tolerance
(R-Perf Mode)
3
∆R
AB
/R
AB
See Table 4 −1 ±0.5 +1 %
Nominal Resistor Tolerance
(Normal Mode)
∆R
AB
/R
AB
±20 %
Resistance Temperature Coefficient
4
(∆R
AB
/R
AB
)/∆T × 10
6
35 ppm/°C
Wiper Resistance R
W
60 100 Ω
DC CHARACTERISTICS,
POTENTIOMETER DIVIDER MODE
Resolution N 10 Bits
Differential Nonlinearity
5
DNL −1 +1 LSB
Integral Nonlinearity
5
INL −1.5 +1.5 LSB
Voltage Divider Temperature
Coefficient
4
(∆V
W
/V
W
)/∆T × 10
6
Code = half scale 5 ppm/°C
Full-Scale Error V
WFSE
Code = full scale −8 +1 LSB
Zero-Scale Error V
WZSE
Code = zero scale 0 8 LSB
RESISTOR TERMINALS
Terminal Voltage Range
6
V
A
, V
B
, V
W
V
SS
V
DD
V
Capacitance A, Capacitance B
4
C
A
, C
B
f = 1 MHz, measured to GND,
code = half-scale
85 pF
Capacitance W
4
C
W
f = 1 MHz, measured to GND,
code = half-scale
65 pF
Common-Mode Leakage Current I
CM
V
A
= V
B
= V
W
±1 nA
DIGITAL INPUTS JEDEC compliant
Input Logic High V
IH
V
LOGIC
= 2.7 V to 5.5 V 2.0 V
Input Logic Low V
IL
V
LOGIC
= 2.7 V to 5.5 V 0.8 V
Input Current I
IL
V
IN
= 0 V or V
LOGIC
±1 μA
Input Capacitance
4
C
IL
5 pF
DIGITAL OUTPUTS (SDO and RDY)
Output High Voltage V
OH
R
PULL_UP
= 2.2 kΩ to V
LOGIC
V
LOG IC
− 0.4 V
Output Low Voltage V
OL
R
PULL_UP
= 2.2 kΩ to V
LOGIC
GND + 0.4 V
Tristate Leakage Current −1 +1 μA
Output Capacitance
4
C
OL
5 pF
POWER SUPPLIES
Single-Supply Power Range V
DD
V
SS
= 0 V 9 33 V
Dual-Supply Power Range V
DD
/V
SS
±9 ±16.5 V
Positive Supply Current I
DD
V
DD
/V
SS
= ±16.5 V 0.1 2 μA
Negative Supply Current I
SS
V
DD
/V
SS
= ±16.5 V −2 −0.1 μA
Logic Supply Range V
LOGIC
2.7 5.5 V
Logic Supply Current I
LOGIC
V
LOGIC
= 5 V; V
IH
= 5 V or V
IL
= GND 1 10 μA
Power Dissipation
7
P
DISS
V
IH
= 5 V or V
IL
= GND 8 110 μW
Power Supply Rejection Ratio
4
PSSR ∆V
DD
/∆V
SS
= ±15 V ± 10%
R
AB
= 50 kΩ 0.039 %/%
R
AB
= 100 kΩ 0.021 %/%