Data Sheet
AD5110/AD5112/AD5114
Rev. B | Page 3 of 28
SPECIFICATIONS
10 kΩ and 80 kΩ versions: VDD = 2.3 V to 5.5 V, VLOGIC = 1.8 V to VDD, VA = VDD, VB = 0 V, 40°C < TA < +125°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Test Conditions/Comments
Min
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution
N
7
Bits
Resistor Integral Nonlineari
ty2R-INL
RAB = 10 k, VDD = 2.3 V to 2.7 V
2.5
±0.5
+2.5
LSB
RAB = 10 k, VDD = 2.7 V to 5.5 V
1
±0.25
+1
LSB
RAB = 80 k
0.5
±0.1
+0.5
LSB
Resistor Differential Nonlinearit
y2R-DNL
1
±0.25
+1
LSB
Nominal Resistor Tolerance
ΔRAB/RAB
8
+8
%
Resistance Temperature Coeffici
ent3(ΔRAB/RAB)/ΔT × 106
Code = full scale
35
ppm/°C
Wiper Resistance
RW
Code = zero scale
70
140
RBS
Code = bottom scale
45
80
RTS
Code = top scale
70
140
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
INL
0.5
±0.15
+0.5
LSB
Differential Nonlinearit
y4DNL
0.5
±0.15
+0.5
LSB
Full-Scale Error
VWFSE
RAB = 10 k
2.5
LSB
RAB = 80 k
1.5
LSB
Zero-Scale Error
VWZSE
RAB = 10 k
1.5
LSB
RAB = 80 k
0.5
LSB
Voltage Divider Temperature Coeffici
ent3(ΔVW/VW)/ΔT × 106
Code = half scale
±10
ppm/°C
RESISTOR TERMINALS
Maximum Continuous IA, IB, and IW RAB = 10 k
6
+6
mA
RAB = 80 k
1.5
+1.5
mA
GND
VDD
V
Capacitance A, Capacitance
B3CA, CB
f = 1 MHz, measured to GND,
code = half scale,
VW = VA = 2.5 V or VW = VB = 2.5 V
20
pF
CW
f = 1 MHz, measured to GND,
code = half scale, VA = VB = 2.5 V
35
pF
Common-Mode Leakage Curre
nt3VA = VW = VB
500
±15
+500
nA
DIGITAL INPUTS
High
VINH
VLOGIC = 1.8 V to 2.3 V
0.8 × VLOGIC
V
VLOGIC = 2.3 V to 5.5 V
0.7 × VLOGIC
V
Low
VINL
VLOGIC = 1.8 V to 2.3 V
0.2 × VLOGIC
V
VLOGIC = 2.3 V to 5.5 V
0.3 × VLOGIC
V
VHYST
0.1 × VLOGIC
V
IN
±1
A
CIN
5
pF
DIGITAL OUTPUT (SDA)
VOL
ISINK = 3 mA
0.2
V
ISINK = 6 mA
0.4
V
Three-State Leakage Current
1
+1
A
Three-State Output Capacitanc
e32
pF