Data Sheet
AD5259
Rev. C | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VDD = VLOGIC = 5 V ± 10% or 3 V ± 10%; VA = VDD; VB = 0 V; 40°C < TA < +125°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Max
Unit
DC CHARACTERISTICS:
RHEOSTAT MODE
Resistor Differential Nonlinearity
R-DNL
R
WB, VA = no connect
LSB
5 k
–1
±0.2
+1
10 k
1
±0.1
+1
50 k/100 k
0.5
±0.1
+0.5
Resistor Integral Nonlinearity
R-INL
R
WB, VA = no connect
LSB
5 k
–4
±0.3
+4
10 k
2
±0.2
+2
50 k/100 k
1
±0.4
+1
Nominal Resistor Tolerance
ΔR
AB
T
A = 25°C, VDD = 5.5 V
–30
+30
%
Resistance Temperature Coefficient
(ΔR
AB x 10
6)/
(R
AB x ΔT)
Code = 0x00/0x80
500/15
ppm/°C
Total Wiper Resistance
R
WB
Code = 0x00
75
350
DC CHARACTERISTICS:
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity
DNL
LSB
5 k
–1
±0.2
+1
10 k
0.5
±0.1
+0.5
50 k/100 k
0.5
±0.2
+0.5
Integral Nonlinearity
INL
LSB
5 k
–1
±0.2
+1
10 k
0.5
±0.1
+0.5
50 k/100 k
0.5
±0.1
+0.5
Full-Scale Error
V
WFSE
Code = 0xFF
LSB
5 k
7
3
0
10 k
4
1.5
0
50 k/100 k
1
0.4
0
Zero-Scale Error
V
WZSE
Code = 0x00
5 k
40°C < T
A < +85°C
0
2.5
4
LSB
+85°C < T
A < +125°C
6
LSB
10 k
40°C < T
A < +85°C
0
1
3
LSB
+85°C < T
A < +125°C
4
LSB
50 k/100 k
0
0.2
0.5
LSB
Voltage Divider Temperature
Coefficient
(V
W x 10
6)/
(V
W x T)
Code = 0x00/0x80
60/5
ppm/°C
RESISTOR TERMINALS
Voltage Range
V
A, B, W
GND
V
DD
V
Capacitance A, B
C
A, B
f = 1 MHz, measured to GND,
code = 0x80
45
pF
Capacitance W
C
W
f = 1 MHz, measured to GND,
code = 0x80
60
pF
Common-Mode Leakage
I
CM
V
A = VB = VDD/2
10
nA