Datasheet

DS3904/DS3905
Triple 128-Position Nonvolatile Digital
Variable Resistor/Switch
_____________________________________________________________________ 5
Typical Operating Characteristics
(V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
DS3904/5 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
6040-20 0 20
20
40
60
80
100
120
140
160
0
-40 80
V
CC
= +5V
V
CC
= +3V
SDA = SCL =V
CC
ADDRESS PINS
CONNECTED TO GND
SUPPLY CURRENT
vs. SCL FREQUENCY
DS3904/5 toc02
SCL FREQUENCY (kHz)
SUPPLY CURRENT (μA)
350300200 250100 15050
20
40
60
80
100
120
140
160
180
200
0
0 400
V
CC
= SDA = +5V
ADDRESS PINS
CONNECTED TO GND
RESISTANCE vs.
RESISTOR SETTING
DS3904/5 toc03
RESISTOR SETTING (DEC)
RESISTANCE (kΩ)
125100755025
5
10
15
20
25
0
0
20kΩ RESISTOR
10kΩ RESISTOR
TEMPERATURE COEFFICIENT vs.
RESISTOR SETTING
DS3904/5 toc04
RESISTOR SETTING (DEC)
TEMPERATURE COEFFICIENT (ppm/°C)
12010020 40 60 80
-100
0
100
200
300
400
500
600
-200
0
TC OF +25°C TO +85°C
TC OF +25°C TO -40°C
20kΩ RESISTOR
TEMPERATURE COEFFICIENT vs.
RESISTOR SETTING
DS3904/5 toc05
RESISTOR SETTING (DEC)
TEMPERATURE COEFFICIENT (ppm/°C)
12010060 804020
100
200
300
400
500
600
700
800
900
0
0
TC OF +25°C TO +85°C
TC OF +25°C TO -40°C
10kΩ RESISTOR
POSITION 7Fh RESISTANCE PERCENT CHANGE
FROM +25°C vs. TEMPERATURE
DS3904/5 toc06
TEMPERATURE (°C)
RESISTANCE % CHANGE (FROM +25°C)
806040200-20
-0.2
0
0.2
0.4
0.6
0.8
1.0
-0.4
-40
20kΩ RESISTOR
10kΩ RESISTOR
POSITION 00h RESISTANCE PERCENT CHANGE
FROM +25°C vs. TEMPERATURE
DS3904/5 toc07
TEMPERATURE (°C)
RESISTANCE % CHANGE (FROM +25°C)
806020 400-20
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
-2.5
-40
20kΩ RESISTOR
10kΩ RESISTOR
RESISTANCE vs. POWER-UP VOLTAGE
DS3904/5 toc08
POWER-UP VOLTAGE (V)
RESISTANCE (kΩ)
54321
10
20
30
40
50
60
70
80
90
100
0
06
EEPROM RECALL
>5.5MΩ
PROGRAMMED RESISTANCE
RESISTANCE vs. POWER-DOWN VOLTAGE
DS3904/5 toc09
POWER-DOWN VOLTAGE (V)
RESISTANCE (kΩ)
54321
10
20
30
40
50
60
70
80
90
100
0
06
EEPROM RECALL
PROGRAMMED RESISTANCE
>5.5MΩ