Datasheet

DS3930
Hex Nonvolatile Potentiometer with
I/O and Memory
_____________________________________________________________________ 5
VOLTAGE DIVIDER % CHANGE
FROM +25°C vs. TEMPERATURE
DS3930 toc06
TEMPERATURE (°C)
RESISTANCE % CHANGE (FROM +25°C)
8060-20 0 20 40
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.20
-40 100
HI = V
CC
LO
0-5
= GND
POSITION 127
END-TO-END RESISTANCE % CHANGE
FROM +25°C vs. TEMPERATURE
DS3930 toc05
TEMPERATURE (°C)
RESISTANCE % CHANGE (FROM +25°C)
806020 400-20
-0.80
-0.60
-0.40
-0.20
0
0.20
0.40
0.60
0.80
1.00
-1.00
-40 100
3 POTS IN PARALLEL
MEASURED FROM HI
0-2
TO LO
0-5
WIPER VOLTAGE
vs. POWER-UP VOLTAGE
DS3930 toc04
POWER-UP VOLTAGE (V)
WIPER VOLTAGE (V)
4.54.03.53.02.52.01.51.00.5
0.5
1.0
1.5
2.0
2.5
3.0
0
0 5.0
HI = 5V, LO = GND
POSITION 127
EEPROM RECALL
FOLLOWS V
CC
CHANGES TO
PROGRAMMED
VALUE ONCE
EEPROM IS
RECALLED
ACTIVE SUPPLY CURRENT
vs. SCL FREQUENCY
DS3930 toc03
SCL FREQUENCY (kHz)
SUPPLY CURRENT (µA)
300200100
260
320
380
440
500
560
620
680
740
200
0 400
V
CC
= 5V
V
CC
= 3V
SDA = V
CC
WIPER VOLTAGE vs. WIPER SETTING
DS3930 toc02
SETTING (DEC)
VOLTAGE (V)
25020015010050
1
2
3
4
5
6
0
0 300
HI = 5V
LO = GND
SUPPLY CURRENT vs. TEMPERATURE
DS3930 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
806040200-20
140
160
180
200
220
120
-40 100
V
CC
= 5V
V
CC
= 3V
SDA = SCL = 5V
Typical Operating Characteristics
(V
CC
= 5.0V; T
A
= +25°C, unless otherwise specified.)
ALL POTS DNL (LSB)
DS3930 toc08
POSITION (DEC)
DNL (LSB)
225200150 17550 75 100 12525
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.10
-0.10
0 250
POTS 1, 3, 5 INL (LSB)
DS3930 toc09
POSITION (DEC)
INL (LSB)
225200150 17550 75 100 12525
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 250
POTS 0, 2, 4, INL (LSB)
DS3930 toc07
POSITION (DEC)
INL (LSB)
225200150 17550 75 100 12525
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 250