Datasheet

AD5273
Rev. H | Page 4 of 24
SPECIFICATIONS
V
DD
= 2.7 V to 5.5 V, V
A
< V
DD
, V
B
= 0 V, −40°C < T
A
< +105°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ
1
Max Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution N 6 Bits
Resistor Differential Nonlinearity
2
R-DNL
10 kΩ, 50 kΩ, 100 kΩ R
WB
, V
A
= NC −0.5 +0.05 +0.5 LSB
1 kΩ R
WB
, V
A
= NC −1 +0.25 +1 LSB
Resistor Nonlinearity
2
R-INL
10 kΩ, 50 kΩ, 100 kΩ R
WB
, V
A
= NC −0.5 +0.10 +0.5 LSB
1 kΩ R
WB
, V
A
= NC −5 +2 +5 LSB
Nominal Resistance Tolerance
3
ΔR
AB
/R
AB
T
A
= 25°C
10 kΩ, 50 kΩ, 100 kΩ −30 +30 %
Nominal Resistance, 1 kΩ R
AB
0.8 1.2 1.6 kΩ
Rheostat Mode Temperature
Coefficient
4
(ΔR
AB
/R
AB
)/∆T Wiper = NC 300 ppm/°C
Wiper Resistance R
W
I
W
= V
DD
/R, V
DD
= 3 V or 5 V 60 100 Ω
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
Differential Nonlinearity
5
DNL −0.5 +0.1 +0.5 LSB
Integral Nonlinearity
5
INL −0.5 +0.5 LSB
Voltage Divider
4
Temperature Coefficient (ΔV
W
/V
W
)/ΔT Code = 0x20 10 ppm/°C
Full-Scale Error V
WFSE
Code = 0x3F −1 0 LSB
10 kΩ, 50 kΩ, 100 kΩ −1 0 LSB
1 kΩ −6 0 LSB
Zero-Scale Error V
WZSE
Code = 0x00 −6 0 LSB
10 kΩ, 50 kΩ, 100 kΩ 0 1 LSB
1 kΩ 0 5 LSB
RESISTOR TERMINALS
Voltage Range
6
V
A
, V
B
, V
W
GND V
DD
V
Capacitance
7
A, B C
A
, C
B
f = 5 MHz, measured to GND,
code = 0x20
25 pF
Capacitance
7
W C
W
f = 1 MHz, measured to GND,
code = 0x20
55 pF
Common-Mode Leakage I
CM
V
A
= V
B
= V
W
1 nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High (SDA and SCL)
8
V
IH
0.7 × V
DD
V
DD
+ 0.5 V
Input Logic Low (SDA and SCL)
8
V
IL
−0.5 0.3 × V
DD
V
Input Logic High (AD0) V
IH
3.0 V
DD
V
Input Logic Low (AD0) V
IL
V
IN
= 0 V or 5 V 0 0.4 V
Input Logic Current I
IL
0.01 1 μA
Input Capacitance
7
C
IL
3 pF
Output Logic Low (SDA) V
OL
0.4 V
Three-State Leakage Current I
OZ
±1 μA
Output Capacitance
7
C
OZ
3 pF
POWER SUPPLIES
Power Supply Range V
DD
2.7 5.5 V
OTP Power Supply
8, 9
V
DD_OTP
T
A
= 25°C
1 kΩ (DD8), 10 kΩ (DD9)
5.0 5.25 5.5 V
50 kΩ (DYG), 100 kΩ (DYH) 4.75 5.0 5.25 V
Supply Current I
DD
V
IH
= 5 V or V
IL
= 0 V 0.1 5 μA
OTP Supply Current
8, 10,11
I
DD_OTP
T
A
= 25°C, V
DD_OTP
= 5 V 100 mA