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AD5227 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD5227
Description  64-Position Up/Down Control Digital Potentiometer
Download  16 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5227 Datasheet(HTML) 3 Page - Analog Devices

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


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