Datasheet

AD5161 Data Sheet
Rev. B | Page 4 of 20
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
V
DD
= 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 2.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity
2
R-DNL R
WB
, V
A
= no connect –1 ±0.1 +1 LSB
Resistor Integral Nonlinearity
2
R-INL R
WB
, V
A
= no connect –2 ±0.25 +2 LSB
Nominal Resistor Tolerance
3
∆R
AB
T
A
= 25°C –30 +30 %
Resistance Temperature Coefficient ∆R
AB
/∆T V
AB
= V
DD
,
Wiper = no connect
45 ppm/°C
Wiper Resistance R
W
V
DD
= 5 V 50 120 Ω
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications apply to all VRs)
Resolution N 8 Bits
Differential Nonlinearity
4
DNL
–1
±0.1
+1
LSB
Integral Nonlinearity
4
INL –1 ±0.3 +1 LSB
Voltage Divider Temperature Coefficient ∆V
W
/∆T Code = 0x80 15 ppm/°C
Full-Scale Error V
WFSE
Code = 0xFF –3 –1 0 LSB
Zero-Scale Error V
WZSE
Code = 0x00 0 1 3 LSB
RESISTOR TERMINALS
Voltage Range
5
V
A,B,W
GND V
DD
V
Capacitance
6
A, B C
A,B
f = 1 MHz, measured to
GND, Code = 0x80
45 pF
Capacitance
6
W C
W
f = 1 MHz, measured to
GND, Code = 0x80
60 pF
Shutdown Supply Current
7
I
DD_SD
V
DD
= 5.5 V 0.01 1 µA
Common-Mode Leakage I
CM
V
A
= V
B
= V
DD
/2 1 nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High V
IH
2.4 V
Input Logic Low V
IL
0.8 V
Input Logic High V
IH
V
DD
= 3 V 2.1 V
Input Logic Low
V
IL
V
DD
= 3 V
0.6
V
Input Current I
IL
V
IN
= 0 V or 5 V ±1 µA
Input Capacitance
6
C
IL
5 pF
POWER SUPPLIES
Power Supply Range V
DD RANGE
2.7 5.5 V
Supply Current I
DD
V
IH
= 5 V or V
IL
= 0 V 3 8 µA
Power Dissipation
8
P
DISS
V
IH
= 5 V or V
IL
= 0 V,
V
DD
= 5 V
0.2 mW
Power Supply Sensitivity
PSS
∆V
DD
= +5 V ± 10%,
Code = Midscale
±0.02
±0.05
%/%
DYNAMIC CHARACTERISTICS
6, 9
Bandwidth –3dB BW R
AB
= 10 kΩ/50 kΩ/100 kΩ,
Code = 0x80
600/100/40 kHz
Total Harmonic Distortion THD
W
V
A
=1 V rms, V
B
= 0 V,
f = 1 kHz, R
AB
= 10 kΩ
0.05 %
V
W
Settling Time (10 kΩ/50 kΩ/100 kΩ) t
S
V
A
= 5 V, V
B
= 0 V,
±1 LSB error band
2 µs
Resistor Noise Voltage Density e
N_WB
R
WB
= 5 kΩ, RS = 0 9 nV/√Hz