
AD5235
Data Sheet
Rev. F | Page 4 of 32
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—25 k, 250 k VERSIONS
VDD = 2.7 V to 5.5 V, VSS = 0 V; VDD = 2.5 V, VSS = 2.5 V, VA = VDD, VB = VSS, 40°C < TA < +85°C, unless otherwise noted.
These specifications apply to versions with a date code 1209 or later.
Table 1.
Parameter
Symbol
Conditions
Min
Max
Unit
DC CHARACTERISTICS—RHEOSTAT
MODE (All RDACs)
Resistor Differential Nonlinea
rity2R-DNL
RWB
1
+1
LSB
Resistor Integral Nonlineari
ty2R-INL
RWB
2
+2
LSB
Nominal Resistor Tolerance
RAB/RAB
8
+8
%
Resistance Temperature Coefficient
(RAB/RAB)/T × 106
35
ppm/°C
Wiper Resistance
RW
IW = 1 V/RWB, code = midscale
VDD = 5 V
30
60
VDD = 3 V
50
Nominal Resistance Match
RAB1/RAB2
±0.1
%
DC CHARACTERISTICS—
POTENTIOMETER DIVIDER MODE
(All RDACs)
Resolution
N
10
Bits
Differential Nonlinearit
y3DNL
1
+1
LSB
INL
1
+1
LSB
Voltage Divider Temperature
Coefficient
(VW/VW)/T × 106
Code = midscale
15
ppm/°C
Full-Scale Error
VWFSE
Code = full scale
6
0
LSB
Zero-Scale Error
VWZSE
Code = zero scale
0
4
LSB
RESISTOR TERMINALS
VA, VB, VW
VSS
VDD
V
CA, CB
f = 1 MHz, measured to GND,
code = midscale
11
pF
CW
f = 1 MHz, measured to GND,
code = midscale
80
pF
Common-Mode Leakage Curre
nt5, 6ICM
VW = VDD/2
0.01
±1
A
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
With respect to GND, VDD = 5 V
2.4
V
Input Logic Low
VIL
With respect to GND, VDD = 5 V
0.8
V
Input Logic High
VIH
With respect to GND, VDD = 3 V
2.1
V
Input Logic Low
VIL
With respect to GND, VDD = 3 V
0.6
V
Input Logic High
VIH
With respect to GND, VDD = +2.5 V,
VSS = 2.5 V
2.0
V
Input Logic Low
VIL
With respect to GND, VDD = +2.5 V,
VSS = 2.5 V
0.5
V
Output Logic High (SDO, RDY)
VOH
RPULL-UP = 2.2 k to 5 V (see
4.9
V
Output Logic Low
VOL
IOL = 1.6 mA, VLOGIC = 5 V (see
0.4
V
Input Current
IIL
VIN = 0 V or VDD
±1
A
CIL
5
pF