AD5243 AD [Analog Devices], AD5243 Datasheet - Page 10

• Manufacturer Part Number: AD5243
• Description: Dual 256-Position I2C Compatible Digital Potentiometer
• Manufacturer: AD [Analog Devices]

AD5243/AD5248
–10
–20
–30
–12
–18
–24
–30
–36
–42
–48
–54
–60
–12
–18
–24
–30
–36
–42
–48
–54
–60
50
40
30
20
10
–6
–6
0
0
0
10k
1k
0
Figure 17. Potentiometer Mode Tempco ∆V
Figure 18. Gain vs. Frequency vs. Code, R
Figure 19. Gain vs. Frequency vs. Code, R
32
V
T
A
DD
= –40°C TO +85°C, –40°C TO +125°C
64
= 2.7V
100k
10k
V
T
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
0x80
0x40
0x20
0x10
0x08
0x04
96
CODE (DECIMAL)
0x02
FREQUENCY (Hz)
FREQUENCY (Hz)
A
DD
= –40°C TO +85°C, –40°C TO +125°C
= 5.5V
0x01
128
160
100k
1M
192
WB
AB
AB
R
/∆T vs. Code
AB
= 2.5 kΩ
= 10 kΩ
= 10kΩ
224
10M
256
1M
Rev. 0 | Page 10 of 20
–12
–18
–24
–30
–36
–42
–48
–54
–60
–12
–18
–24
–30
–36
–42
–48
–54
–60
–12
–18
–24
–30
–36
–42
–48
–54
–60
–6
–6
–6
0
0
0
1k
1k
1k
Figure 21. Gain vs. Frequency vs. Code, R
Figure 20. Gain vs. Frequency vs. Code, R
Figure 22. –3 dB Bandwidth @ Code = 0x80
10k
100kΩ
60kHz
10k
10k
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
50kΩ
120kHz
100k
10kΩ
570kHz
100k
100k
2.5kΩ
2.2MHz
1M
AB
AB
= 100 kΩ
= 50 kΩ
10M
1M
1M