C-Compatible 2-Wire Serial Bus Section ............ 15
Changes to Ordering Guide .......................................................... 18
7/06—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Changes to Absolute Maximum Ratings section ..........................6
Changes to Ordering Guide .......................................................... 18
9/03—Revision 0: Initial Version
Rev. F | Page 2 of 20
Data Sheet
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—5 kΩ VERSION
V
DD
= 5 V ± 10% or 3 V ± 10%, V
A
= V
DD
, −40°C < T
A
< +125°C, unless otherwise noted.
Table 1.
Parameter
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity
2
Resistor Integral Nonlinearity
2
Nominal Resistor Tolerance
3
Resistance Temperature Coefficient
3
Output Resistance
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE
Differential Nonlinearity
4
Integral Nonlinearity
4
Voltage Divider Temperature Coefficient
Full-Scale Error
Zero-Scale Error
RESISTOR TERMINALS
Voltage Range
5
Capacitance A
6
Capacitance W
6
AD5247
Symbol
R-DNL
R-INL
∆R
AB
∆R
AB
/∆T
R
WB
DNL
INL
∆V
W
/∆T
V
WFSE
V
WZSE
V
A,
V
W
C
A
C
W
I
CM
V
IH
V
IL
V
IH
V
IL
I
IL
C
IL
V
OL
Conditions
R
WB
, V
A
= no connect
R
WB
, V
A
= no connect
Min
−1.5
−4
−30
Typ
1
±0.1
±0.75
45
75
Max
+1.5
+4
+30
300
+1
+1
0
2
V
DD
Unit
LSB
LSB
%
ppm/°C
Ω
LSB
LSB
ppm/°C
LSB
LSB
V
pF
pF
nA
V
V
V
V
μA
pF
V
V
V
μA
μA
μA
μW
%/%
MHz
%
μs
nV/√Hz
Code = 0x00
−1
−1
Code = 0x40
Code = 0x7F
Code = 0x00
−3
0
GND
f = 1 MHz, measured to GND,
code = 0x40
f = 1 MHz, measured to GND,
code = 0x40
V
A
= V
DD
/2
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V
V
IN
= 0 V or 5 V
I
OL
= 3 mA
I
OL
= 6 mA
2.7
V
DD
= 5.5 V; V
IH
= V
DD
or V
IL
= GND
V
DD
= 5 V; V
IH
= V
DD
or V
IL
= GND
V
DD
= 3.3 V; V
IH
= V
DD
or V
IL
= GND
V
IH
= 5 V or V
IL
= 0 V, V
DD
= 5 V
V
DD
= 5 V ± 10%,
code = midscale
R
AB
= 5 kΩ, code = 0x40
V
A
= 1 V rms, V
B
= 0 V, f = 1 kHz
V
A
= 5 V, ±1 LSB error band
R
WB
= 2.5 kΩ, R
S
= 0 Ω
2.4
±0.1
±0.2
15
−2
1
45
60
1
Common-Mode Leakage
DIGITAL INPUTS AND OUTPUTS
Input Logic High
Input Logic Low
Input Logic High
Input Logic Low
Input Current
Input Capacitance
6
Output Logic Low (SDA)
POWER SUPPLIES
Power Supply Range
Supply Current
0.8
2.1
0.6
±1
5
0.4
0.6
5.5
7
5.2
2
40
±0.05
V
DD RANGE
I
DD
3
2.5
0.9
Power Dissipation
7
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS
Bandwidth –3 dB
Total Harmonic Distortion
V
W
Settling Time
Resistor Noise Voltage Density
1
2
P
DISS
PSSR
6, 8
±0.003
1.2
0.05
1
6
BW_5 K
THD
W
t
S
e
N_WB
Typical specifications represent average readings at 25°C and V
DD
= 5 V.
Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper
positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic.
3
V
A
= V
DD
, wiper (V
W
) = no connect.
4
INL and DNL are measured at V
W,
with the RDAC configured as a potentiometer divider similar to a voltage output DAC. V
A
= V
DD
and V
B
= 0 V.
DNL specification limits of ±1 LSB maximum are guaranteed monotonic under operating conditions.
5
Resistor Terminal A and Resistor Terminal W have no limitations on polarity with respect to each other.
6
Guaranteed by design and not subject to production test.
7
P
DISS
is calculated from (I
DD
× V
DD
). CMOS logic level inputs result in minimum power dissipation.
8
All dynamic characteristics use V
DD
= 5 V.
Rev. F | Page 3 of 20
AD5247
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