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AD5243BRM100 Scheda tecnica(PDF) 4 Page - Analog Devices

Il numero della parte AD5243BRM100
Spiegazioni elettronici  Dual 256-Position I2C Compatible Digital Potentiometer
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD5243BRM100 Scheda tecnica(HTML) 4 Page - Analog Devices

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AD5243/AD5248
Rev. 0 | Page 4 of 20
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
VDD = 5 V ± 10%, or 3 V ± 10%; VA = VDD; VB = 0 V; −40°C < TA < 125°C; unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity2
R-DNL
RWB, VA = no connect
−1
±0.1
+1
LSB
Resistor Integral Nonlinearity2
R-INL
RWB, VA = no connect
−2.5
±0.25
+2.5
LSB
Nominal Resistor Tolerance3
∆RAB
TA = 25°C
−20
+20
%
Resistance Temperature Coefficient
(∆RAB/RAB )/∆T
VAB = VDD, wiper = no connect
35
ppm/°C
RWB (Wiper Resistance)
RWB
Code = 0x00, VDD =5 V
160
200
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications Apply to All VRs)
Differential Nonlinearity4
DNL
−1
±0.1
+1
LSB
Integral Nonlinearity4
INL
−1
±0.3
+1
LSB
Voltage Divider Temperature
Coefficient
(∆VW/VW)/∆T
Code = 0x80
15
ppm/°C
Full-Scale Error
VWFSE
Code = 0xFF
−2.5
−1
0
LSB
Zero-Scale Error
VWZSE
Code = 0x00
0
1
2.5
LSB
RESISTOR TERMINALS
Voltage Range5
VA, VB, VW
GND
VDD
V
Capacitance6 A, B
CA, CB
f = 1 MHz, measured to GND, Code = 0x80
45
pF
Capacitance6 W
CW
f = 1 MHz, measured to GND, Code = 0x80
60
pF
Shutdown Supply Current7
IA_SD
VDD = 5.5 V
0.01
1
µA
Common-Mode Leakage
ICM
VA = VB = VDD/2
1
nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
VDD = 5 V
2.4
V
Input Logic Low
VIL
VDD = 5 V
0.8
V
Input Logic High
VIH
VDD = 3 V
2.1
V
Input Logic Low
VIL
VDD = 3 V
0.6
V
Input Current
IIL
VIN = 0 V or 5 V
±1
µA
Input Capacitance
CIL
5
pF
POWER SUPPLIES
Power Supply Range
VDD RANGE
2.7
5.5
V
Supply Current
IDD
VIH = 5 V or VIL = 0 V
3.5
6
µA
Power Dissipation
PDISS
VIH = 5 V or VIL = 0 V, VDD = 5 V
30
µW
Power Supply Sensitivity
PSS
VDD = 5 V ± 10%, Code = midscale
±0.02
±0.0
8
%/%
DYNAMIC CHARACTERISTICS
Bandwidth −3 dB
BW
RAB = 10 kΩ/50 kΩ/100 kΩ, Code = 0x80
600/100/4
0
kHz
Total Harmonic Distortion
THDW
VA = 1 V rms, VB = 0 V, f = 1 kHz, RAB = 10 kΩ
0.1
%
VW Settling Time (10 kΩ/50 kΩ/100
kΩ)
tS
VA = 5 V, VB = 0 V, ±1 LSB error band
2
µs
Resistor Noise Voltage Density
eN_WB
RWB = 5 kΩ, RS = 0
9
nV/
√Hz
See notes at end of section.


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