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AD5241BRZ100 Datasheet(Fiches technique) 9 Page - Analog Devices

Numéro de pièce AD5241BRZ100
Description  I2C-Compatible, 256-Position Digital Potentiometers
Télécharger  20 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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AD5241/AD5242
Rev. C | Page 9 of 20
0.1
0.01
0.001
80
60
40
20
0
–20
–40
TEMPERATURE (°C)
RAB = 10k
VDD = 5.5V
Figure 14. Shutdown Current vs. Temperature
100kΩ VERSION
CODE (Decimal)
128
96
64
32
0
70
60
20
0
–30
50
40
30
10
–10
–20
10kΩ VERSION
10MΩ VERSION
160
192
224
256
VDD/VSS = 2.7V/0V
TA = 25°C
Figure 15. ΔVWB/ΔT Potentiometer Mode Temperature Coefficient
CODE (Decimal)
120
100
20
–20
–80
256
224
192
160
128
96
64
32
0
80
60
40
0
–40
–60
10kΩ VERSION
10MΩ VERSION
100kΩ VERSION
VDD/VSS = 2.7V/0V
TA = 25°C
Figure 16. ΔRWB/ΔT Rheostat Mode Temperature Coefficient
TA = 25°C
COMMON-MODE (V)
100
90
50
30
5
4
3
2
1
0
–1
–2
–3
80
70
60
40
20
10
VDD/VSS = +2.7V/0V
6
VDD/VSS = ±2.7V/0V
VDD/VSS = +5.5V/0V
Figure 17. Incremental Wiper Contact vs. VDD/VSS
FREQUENCY (kHz)
300
100
50
0
1k
100
10
150
200
250
E
B
C
A
D
F
A: VDD/VSS = 5.5V/0V
CODE = 0xFF
B: VDD/VSS = 3.3V/0V
CODE = 0xFF
C: VDD/VSS = 2.5V/0V
CODE = 0xFF
D: VDD/VSS = 5.5V/0V
CODE = 0x55
E: VDD/VSS = 3.3V/0V
CODE = 0x55
F: VDD/VSS = 2.5V/0V
CODE = 0x55
Figure 18. Supply Current vs. Frequency
FREQUENCY (Hz)
6
–36
–42
–48
–54
1M
100k
10k
1k
100
–30
–24
–18
–12
–6
0
0xFF
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
Figure 19. AD5242 10 k Ω Gain vs. Frequency vs. Code




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