DS3901
Triple, 8-Bit NV Variable Resistor
with Dual Settings and User EEPROM
4 _____________________________________________________________________
Note 1: All voltages referenced to ground.
Note 2: Guaranteed by design.
Note 3: I
STBY
specified for the inactive state measured with SDA = SCL = V
CC
, ADD_SEL = GND, BK_SEL, DIS, H0, H1, H2, L2, L0
floating.
Note 4: Absolute linearity is the deviation of a measured resistor-setting value from the expected value at each particular resistor
setting. Expected value is calculated by connecting a straight line from the measured minimum setting to the measured
maximum setting.
Note 5: Relative linearity is the deviation of the step size change between two LSB settings from the expected step size. The expected
LSB step size is the slope of the straight line from measured minimum position to measured maximum position.
Note 6: See the Typical Operating Characteristics.
Note 7: Timing shown is for fast-mode (400kHz) operation. This device is also backward-compatible with I
2
C standard mode.
Note 8: CBtotal capacitance of one bus line in picofarads.
Note 9: EEPROM write begins after a STOP condition occurs.
NONVOLATILE MEMORY CHARACTERISTICS
(V
CC
= +2.4V to +5.5V.)
MAX
UNITS
50,000
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
165
171
169
167
173
175
177
179
181
183
185
-40 14-13 416895
SUPPLY CURRENT vs. TEMPERATURE
DS3901 toc01
TEMPERATURE (
°
C)
SUPPLY CURRENT (µA)
ADD_SEL = GND
SDA = SCL = V
CC
,
ALL OTHERS ARE FLOATING
110
130
140
150
160
170
180
190
200
2.400 3.175 3.950 4.725 5.500
SUPPLY CURRENT vs. SUPPLY VOLTAGE
DS3901 toc02
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
120
ADD_SEL = GND
SDA = SCL = V
CC
,
ALL OTHERS ARE FLOATING
175
180
185
190
195
200
205
010050 150 200 250 300 350 400
SUPPLY CURRENT vs. SCL FREQUENCY
DS3901 toc03
SCL FREQUENCY (kHz)
SUPPLY CURRENT (µA)
ADD_SEL = GND
SDA = SCL = V
CC
,
ALL OTHERS ARE FLOATING
0
40
30
20
10
50
0 10251 153 204 255
RESISTANCE vs. RESISTOR SETTING
DS3901 toc04
SETTING (DEC)
RESISTANCE (k)
R2R1R0
0
300
200
100
400
500
600
700
800
900
1000
0 10251 153 204 255
TEMPERATURE COEFFICIENT
vs. RESISTOR SETTING
DS3901 toc05
SETTING (DEC)
TEMPERATURE COEFFICIENT (ppm/°C)
R0, -40
°
C TO +25
°
C
R1, -40
°
C TO +25
°
C
R2, -40
°
C TO +25
°
C
R0, +25
°
C TO +95
°
C
R1, +25
°
C TO +95
°
C
R2, +25
°
C TO +95
°
C
-13
7
12
2
-3
-8
-40 14-13 41 68 95
CHANGE IN RESISTANCE
vs. TEMPERATURE
DS3901 toc06
TEMPERATURE (°C)
RESISTOR CHANGE (%)
RESISTOR SETTING = 00h
R1
R0
R2
DS3901
Triple, 8-Bit NV Variable Resistor
with Dual Settings and User EEPROM
_____________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
-0.600
0.000
-0.200
-0.400
0.200
0.400
0.600
0800
1.000
1.200
1.400
-40 14-13 416895
CHANGE IN RESISTANCE
vs. TEMPERATURE
DS3901 toc07
TEMPERATURE (
°
C)
RESISTOR CHANGE (%)
RESISTOR SETTING = FFh
R2
R1
R0
-0.10
-0.04
-0.06
-0.08
-0.02
0
0.02
0.04
0.06
0.08
0.10
2.400
3.175
3.950 4.725
5.500
RESISTANCE vs. SUPPLY VOLTAGE
DS3901 toc08
SUPPLY VOLTAGE (V)
RESISTANCE CHANGE (%)
RESISTOR SETTING = 7Fh
R2
R0
R1
47
59
51
49
55
53
57
0 2.75 5.50
RESISTANCE vs. POWER-UP
SUPPLY VOLTAGE
DS3901 toc09
SUPPLY VOLTAGE (V)
RESISTANCE (k)
RESISTOR SETTING = FFh
> 1M
R0
47
59
51
49
55
53
57
0 2.75 5.50
RESISTANCE vs. POWER-DOWN
SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
RESISTANCE (k)
DS3901 toc10
RESISTOR SETTING = FFh
> 1M
R0
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R0 ABSOLUTE LINEARITY
vs. RESISTOR SETTING
DS3901 toc11
SETTING (DEC)
ABSOLUTE LINEARITY (LSB)
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R0 RELATIVE LINEARITY
vs. RESISTOR SETTING
DS3901 toc12
SETTING (DEC)
RELATIVE LINEARITY (LSB)
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R1 ABSOLUTE LINEARITY
vs. RESISTOR SETTING
DS3901 toc13
SETTING (DEC)
ABSOLUTE LINEARITY (LSB)
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R1 RELATIVE LINEARITY
vs. RESISTOR SETTING
DS3901 toc14
SETTING (DEC)
RELATIVE LINEARITY (LSB)
DS3901
Triple, 8-Bit NV Variable Resistor
with Dual Settings and User EEPROM
6 _____________________________________________________________________
Pin Description
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R2 ABSOLUTE LINEARITY
vs. RESISTOR SETTING
DS3901 toc15
SETTING (DEC)
ABSOLUTE LINEARITY (LSB)
-0.75
0.65
0.45
0.25
0.05
-0.15
-0.35
-0.55
0 51 102 153 204 255
R2 RELATIVE LINEARITY
vs. RESISTOR SETTING
DS3901 toc16
SETTING (DEC)
RELATIVE LINEARITY (LSB)

DS3901E+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Digital Potentiometer ICs Tri 8Bit NV Variable w/Dual Stgs & EEPROM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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