Datasheet

Data Sheet AD5111/AD5113/AD5115
Rev. A | Page 7 of 24
ELECTRICAL CHARACTERISTICS—AD5115
10 kΩ and 80 kΩ versions: V
DD
= 2.3 V to 5.5 V, V
A
= V
DD
, V
B
= 0 V, −40°C < T
A
< +125°C, unless otherwise noted.
Table 4.
Parameter Symbol Test Conditions/Comments Min Typ
1
Max Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution N 5 Bits
Resistor Integral Nonlinearity
2
R-INL −0.5 +0.5 LSB
Resistor Differential Nonlinearity
2
R-DNL −0.25 +0.25 LSB
Nominal Resistor Tolerance ΔR
AB
/R
AB
−8 +8 %
Resistance Temperature Coefficient
3
(ΔR
AB
/R
AB
)/ΔT × 10
6
35 ppm/°C
Wiper Resistance R
W
Code = zero scale 70 140 Ω
R
BS
Code = bottom scale 45 80 Ω
R
TS
Code = top scale 70 140 Ω
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
Integral Nonlinearity
4
INL −0.25 +0.25 LSB
Differential Nonlinearity
4
DNL −0.25 +0.25 LSB
Full-Scale Error V
WFSE
R
AB
= 10 kΩ −1 LSB
R
AB
= 80 kΩ −0.5 LSB
Zero-Scale Error V
WZSE
R
AB
= 10 kΩ 1 LSB
R
AB
= 80 kΩ 0.25 LSB
Voltage Divider Temperature Coefficient
3
(ΔV
W
/V
W
)/ΔT × 10
6
Code = half scale ±10 ppm/°C
RESISTOR TERMINALS
Maximum Continuous I
A
, I
B
, and I
W
Current
3
R
AB
= 10 kΩ −6 +6 mA
R
AB
= 80 kΩ −1.5 +1.5 mA
Terminal Voltage Range
5
GND V
DD
V
Capacitance A, Capacitance B
3, 6
C
A
, C
B
f = 1 MHz, measured to GND,
code = half scale
20 pF
Capacitance W
3, 6
C
W
f = 1 MHz, measured to GND,
code = half scale
35 pF
Common-Mode Leakage Current
3
V
A
= V
W
= V
B
−500 ±15 +500 nA
DIGITAL INPUTS
Input Logic
3
High V
INH
2 V
Low V
INL
0.8 V
Input Current
3
I
N
±1 μA
Input Capacitance
3
C
IN
5 pF
POWER SUPPLIES
Single-Supply Power Range 2.3 5.5 V
Positive Supply Current I
DD
V
IH
= V
DD
or V
IL
= GND, V
DD
= 5 V 0.75 3.5 mA
V
IH
= V
DD
or V
IL
= GND, V
DD
= 2.7 V 2.5 mA
V
IH
= V
DD
or V
IL
= GND, V
DD
= 2.3 V 2.4 mA
EEMEM Store Current
3, 7
I
DD_NVM_STORE
2 mA
EEMEM Read Current
3, 8
I
DD_NVM_READ
320 μA
Power Dissipation
9
P
DISS
V
IH
= V
DD
or V
IL
= GND 5 μW
Power Supply Rejection
3
PSR ∆V
DD
/∆V
SS
= 5 V ± 10%
R
AB
= 10 kΩ −50 dB
R
AB
= 80 kΩ −64 dB