DS1805 データシートの表示（PDF） - Maxim Integrated
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DS1805 Datasheet PDF : 10 Pages
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Addressable Digital Potentiometer
(VCC = 5.0V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
30
10
25
VCC = 5V
8
20
VCC = 3V
6
15
10
4
5
2
Typical Operating Characteristics
W-L RESISTANCE
vs. WIPER SETTING
10kΩ POTENTIOMETER
WIPER RESISTANCE vs.
WIPER VOLTAGE (10kΩ)
350
VCC = 5V
300
250
VCC = 3V
200
150
100
50
0
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
0
0 25 50 75 100 125 150 175 200 225 250
WIPER SETTING
0
0
1
2
3
4
5
WIPER VOLTAGE (V)
VOLTAGE DIVIDER PERCENT CHANGE
(FROM +25°C) vs. TEMPERATURE
(RATIOMETRIC TC)
0.06
10kΩ POT
WIPER = 3Fh
0.04
WIPER = 7Fh
0.02 WIPER = BFh
0
-0.02
-0.04
-0.06
-40
WIPER = BFh
TC = 8.1ppm/°C
TC = 1.3ppm/°C
WIPER = 3Fh
-20 0 20 40 60 80
TEMPERATURE (°C)
END-TO-END RESISTANCE TEMPERATURE
CHANGE vs. TEMPERATURE
5
4
3
2
10kΩ, WORST CASE
1
0
-1
-2
-3 TC = 530ppm/°C
-4
-5
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
50
45
40
35
30
25
20
15
10
5
0
0
ACTIVE SUPPLY CURRENT
vs. SCL FREQUENCY
SDA = VCC
A0, A1, A2, L1 = GND
W1, H1 = NO CONNECT
100
200
300
400
SCL FREQUENCY (kHz)
VOLTAGE-DIVIDER ABSOLUTE LINEARITY
vs. WIPER SETTING (10kΩ)
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
50 100 150 200 250
WIPER SETTING
VOLTAGE-DIVIDER RELATIVE LINEARITY
vs. WIPER SETTING (10kΩ)
0.06
0.05
0.04
0.03
0.02
0.01
0
-0.01
0
50 100 150 200 250
WIPER SETTING
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