AD5227 Ver la hoja de datos (PDF) - Analog Devices
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AD5227 Datasheet PDF : 16 Pages
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AD5227
ELECTRICAL CHARACTERISTICS
10 kΩ, 50 kΩ, 100 kΩ versions: VDD = 3 V ± 10% or 5 V ± 10%, VA = VDD, VB = 0 V, −40°C < TA < +105°C, unless otherwise noted.
Table 2.
Parameter
DC CHARACTERISTICS RHEOSTAT MODE
Resistor Differential Nonlinearity2
Resistor Integral Nonlinearity2
Nominal Resistor Tolerance3
Resistance Temperature Coefficient
Wiper Resistance
Symbol
R-DNL
R-INL
∆RAB/RAB
(∆RAB/RAB)/∆T × 106
RW
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE
Resolution
N
Integral Nonlinearity3
INL
Differential Nonlinearity3, 4
DNL
Voltage Divider Temperature Coefficient (∆VW/VW)/∆T × 106
Full-Scale Error
VWFSE
Zero-Scale Error
VWZSE
RESISTOR TERMINALS
Voltage Range5
Capacitance A, B6
Capacitance W6
Common-Mode Leakage
DIGITAL INPUTS (CS, CLK, U/D)
VA, B, W
CA, B
CW
ICM
Conditions
Min Typ1 Max
RWB, A = no connect
RWB, A = no connect
VDD = 2.7 V
VDD = 2.8 V to 5.5 V
−0.5 ±0.15 +0.5
−1 ±0.3 +1
−20
+20
35
100 250
50
200
6
−1 ±0.1 +1
−0.5 ±0.1 +0.5
Midscale
5
≥+31 steps from midscale −1.2 −0.5 0
−40°C < TA < +60°C,
VDD = 2.8 V to 5.5 V
−1 −0.5 0
≤−32 steps from midscale 0
0.5
1.2
−40°C < TA < +60°C,
VDD = 2.8 V to 5.5 V
0
0.5
1
With respect to GND
0
f = 1 MHz, measured to
GND
f = 1 MHz, measured to
GND
VA = VB = VW
VDD
140
150
1
Unit
LSB
LSB
%
ppm/°C
Ω
Ω
Bits
LSB
LSB
ppm/°C
LSB
LSB
LSB
LSB
V
pF
pF
nA
Input Logic High
Input Logic Low
Input Current
Input Capacitance6
POWER SUPPLIES
Power Supply Range
Supply Current
Power Dissipation7
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS6, 8, 9
Bandwidth −3 dB
Total Harmonic Distortion
Adjustment Settling Time
Resistor Noise Voltage
Footnotes on the next page.
VIH
VIL
II
CI
VDD
IDD
PDISS
PSSR
BW_10 k
BW_50 k
BW_100 k
THD
tS
eN_WB
VIN = 0 V or 5 V
2.4
5.5
0
0.8
±1
5
VIH = 5 V or VIL = 0 V,
VDD = 5 V
VIH = 5 V or VIL = 0 V,
VDD = 5 V
VDD = 5 V ± 10%
2.7
5.5
0.4
3
17
0.01 0.05
RAB = 10 kΩ, midscale
460
RAB = 50 kΩ, midscale
100
RAB = 100 kΩ, midscale
50
VA = 1 V rms, RAB = 10 kΩ,
0.05
VB = 0 V dc, f = 1 kHz
VA = 5 V ± 1 LSB error
1
band, VB = 0, measured at
VW
RWB = 5 kΩ, f = 1 kHz
14
V
V
μA
pF
V
μA
μW
%/%
kHz
kHz
kHz
%
μs
nV/√Hz
Rev. B | Page 3 of 16
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