Datasheet

Data Sheet AD5259
Rev. C | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
DD
= V
LOGIC
= 5 V ± 10% or 3 V ± 10%; V
A
= V
DD
; V
B
= 0 V; −40°C < T
A
< +125°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS:
RHEOSTAT MODE
Resistor Differential Nonlinearity R-DNL R
WB
, V
A
= no connect LSB
5 kΩ –1 ±0.2 +1
10 kΩ −1 ±0.1 +1
50 kΩ/100 kΩ −0.5 ±0.1 +0.5
Resistor Integral Nonlinearity R-INL R
WB
, V
A
= no connect LSB
5 kΩ –4 ±0.3 +4
10 kΩ
−2
±0.2
+2
50 kΩ/100 kΩ −1 ±0.4 +1
Nominal Resistor Tolerance ΔR
AB
T
A
= 25°C, V
DD
= 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 Ω
DC CHARACTERISTICS:
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity DNL LSB
5 kΩ –1 ±0.2 +1
10 kΩ −0.5 ±0.1 +0.5
50 kΩ/100 kΩ −0.5 ±0.2 +0.5
Integral Nonlinearity INL LSB
5 kΩ –1 ±0.2 +1
10 kΩ −0.5 ±0.1 +0.5
50 kΩ/100 kΩ −0.5 ±0.1 +0.5
Full-Scale Error V
WFSE
Code = 0xFF LSB
5 kΩ −7 −3 0
10 kΩ −4 −1.5 0
50 kΩ/100 kΩ −1 −0.4 0
Zero-Scale Error
V
WZSE
Code = 0x00
5 kΩ −40°C < T
A
< +85°C 0 2.5 4 LSB
+85°C < T
A
< +125°C 6 LSB
10 kΩ −40°C < T
A
< +85°C 0 1 3 LSB
+85°C < T
A
< +125°C 4 LSB
50 kΩ/100 kΩ
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
= V
B
= V
DD
/2
10
nA