2024年5月27日发(作者：苍腾逸)
元器件交易网
Rev 0; 4/05
Triple NV Low Step Size Variable
Resistor Plus Memory
General DescriptionFeatures
The DS3906 is intended for low resistance, small step-
♦Three Programmable Resistors for Low Step-Size
size applications. It contains three nonvolatile (NV), low-
Applications (Ohm and Subohm)
temperature coefficient, variable digital resistors that
are capable of ohm and subohm increments when
♦Resistor Settings are NV
used in parallel with a fixed external resistor. All three of
♦16-Byte NV User Memory (EEPROM)
the DS3906’s resistors have 64 positions (plus a high-Z
♦I
2
C-Compatible Serial Interface
state) with a pseudo-log response cleverly chosen to
♦Up to 8 Devices Can be Multidropped on the
have a linear equivalent resistance when paired with an
Same I
2
C Bus
external resistor (see graphs below). The DS3906 also
♦Low Power Consumption
contains 16 bytes of user EEPROM that, in addition to
the resistors, are controlled through an I
2
C™-compati-
♦Wide Operating Voltage (2.7V to 5.5V)
ble serial interface. Three address pins allow up to
♦Operating Temperature Range: -40°C to +85°C
eight DS3906s to be placed on the same I
2
C bus.
Ordering Information
The DS3906 can also be factory cutomized to provide a
variety of transfer functions depending on user
PARTTEMP RANGEPACKAGE
requirements. Contact @
DS3906U-40°C to +85°C10-Pin µSOP
for additional information.
DS3906U+-40°C to +85°C10-Pin µSOP
Applications
+Denotes lead-free package.
Add “/T&R” for Tape-and-Reel orders
Low Ohm, Fine Resolution Driver Control for LED
Display Panels
Pin Configuration
Low Ohm, Fine Resolution Instrumentation Control
TOP VEIW
A1
110A2
SDA
29A0
SCL38H0
Typical Operating Circuit appears at end of data sheet.
V
CC
4
DS3906
7H1
GND
5
6H2
10-PIN µSOP
Resistor Plots
RESISTOR 0 AND 1 RESISTANCE vs. POSITION
RESISTOR 2 RESISTANCE vs. POSITION
(WITH AND WITHOUT EXTERNAL RESISTOR)
(WITH AND WITHOUT EXTERNAL RESISTOR)
200
3000
R0R
EXT0
350
180
R
2
|| (R
EXT
= 400Ω)
1600
2500
300
)
Ω
160
R
0, 1
|| (R
EXT
= 150Ω)
R
)
2
|| (R
EXT
= 310Ω)
1400
)
(
T
X
2000
Ω
Ω
)
(
(
T
250
E
140
T
X
R
|
|
= 105Ω)
X
E
1200
Ω
(
T
E
1
120
R
0, 1
|| (R
EXT
DS3906
R
X
,
1500
R
|
E
0
R1R
|
T
EXT1
R
2
200
U
T
R
O
R
U
=
100
H
=
1000
O
E
T
E
V
I
V
I
T
80
100
W
I
T
150
R
H
2
|| (R
EXT
= 250Ω)
T
I
C
C
1
E
E
,
F
F
0
F
800
W
2
F
E
60
R
0, 1
|| (R
EXT
= 50Ω)
500
R
E
R
R
R
100
40
R
2
WITHOUT R
EXT
20
20
R2R
EXT2
50
600
R WITHOUT R
0
0, 1EXT
0
0
400
0
163248
64
016324864
RESISTOR POSITION (dec)
RESISTOR POSITION (dec)
I
2
C is a trademark of Philips Corp. Purchase of I
2
C components of Maxim Integrated Products, Inc., or one of its sublicensed
Associated Companies, conveys a license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided
that the system conforms to the I
2
C Standard Specification as defined by Philips Corp.
______________________________________________Maxim Integrated Products1
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at
1-888-629-4642, or visit Maxim’s website at .
DS3906
元器件交易网
Triple NV Low Step Size Variable
Resistor Plus Memory
D
S
3
9
0
6
ABSOLUTE MAXIMUM RATINGS
Voltage on V
CC
, SDA, SCL, and H0-H2 Pins
Relative -0.5V to +6.0V
Voltage on A0, A1, and A2
Relative -0.5V to V
CC
+ 0.5V, not to exceed +6.0V
5mA
Operating -40°C to +85°C
EEPROM Programming .0°C to +70°C
Storage Temperature Range ............................-55°C to +125°C
See J-STD-020 Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(T
A
= -40°C to +85°C)
PARAMETER
Supply Voltage
Input Logic 1
Input Logic 0
Resistor Inputs
Resistor Current
SYMBOL
V
CC
V
IH
V
IL
H0, H1, H2V
CC
= 2.7V to 5.5V
I
R
(Note 1)
CONDITIONSMIN
+2.7
0.7 x
V
CC
-0.3
-0.3
TYPMAX
+5.5
V
CC
+
0.3
0.3 x
V
CC
+5.5
5
UNITS
V
V
V
V
mA
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
Standby Current (Note 2)
Input Leakage for All Pins
Low-Level Output Voltage (SDA)
I/O Capacitance
SYMBOL
I
STBY
I
L
V
OL SDA
C
I/O
3V
5V
(Note 3)
3mA sink current
6mA sink current
-1.0
0
0
CONDITIONSMINTYP
130
160250
+1.0
0.4
0.6
10
MAXUNITS
µA
µA
V
pF
ANALOG RESISTOR CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
Resistor Tolerance
INL
DNL
Temperature Coefficient
Resistor High-Z
Resistors
R
HIGH-Z
Guaranteed monotonic by design
SYMBOL
(Note 4)
(Note 4)
At position 3Fh (Note 8)
5.5
CONDITIONS
From nominal values in Table 3
MIN
-20
-2
-0.5
60
TYPMAX
+20
+2
+0.5
UNITS
%
LSB
LSB
ppm/°C
MΩ
2_____________________________________________________________________
2024年5月27日发(作者：苍腾逸)
元器件交易网
Rev 0; 4/05
Triple NV Low Step Size Variable
Resistor Plus Memory
General DescriptionFeatures
The DS3906 is intended for low resistance, small step-
♦Three Programmable Resistors for Low Step-Size
size applications. It contains three nonvolatile (NV), low-
Applications (Ohm and Subohm)
temperature coefficient, variable digital resistors that
are capable of ohm and subohm increments when
♦Resistor Settings are NV
used in parallel with a fixed external resistor. All three of
♦16-Byte NV User Memory (EEPROM)
the DS3906’s resistors have 64 positions (plus a high-Z
♦I
2
C-Compatible Serial Interface
state) with a pseudo-log response cleverly chosen to
♦Up to 8 Devices Can be Multidropped on the
have a linear equivalent resistance when paired with an
Same I
2
C Bus
external resistor (see graphs below). The DS3906 also
♦Low Power Consumption
contains 16 bytes of user EEPROM that, in addition to
the resistors, are controlled through an I
2
C™-compati-
♦Wide Operating Voltage (2.7V to 5.5V)
ble serial interface. Three address pins allow up to
♦Operating Temperature Range: -40°C to +85°C
eight DS3906s to be placed on the same I
2
C bus.
Ordering Information
The DS3906 can also be factory cutomized to provide a
variety of transfer functions depending on user
PARTTEMP RANGEPACKAGE
requirements. Contact @
DS3906U-40°C to +85°C10-Pin µSOP
for additional information.
DS3906U+-40°C to +85°C10-Pin µSOP
Applications
+Denotes lead-free package.
Add “/T&R” for Tape-and-Reel orders
Low Ohm, Fine Resolution Driver Control for LED
Display Panels
Pin Configuration
Low Ohm, Fine Resolution Instrumentation Control
TOP VEIW
A1
110A2
SDA
29A0
SCL38H0
Typical Operating Circuit appears at end of data sheet.
V
CC
4
DS3906
7H1
GND
5
6H2
10-PIN µSOP
Resistor Plots
RESISTOR 0 AND 1 RESISTANCE vs. POSITION
RESISTOR 2 RESISTANCE vs. POSITION
(WITH AND WITHOUT EXTERNAL RESISTOR)
(WITH AND WITHOUT EXTERNAL RESISTOR)
200
3000
R0R
EXT0
350
180
R
2
|| (R
EXT
= 400Ω)
1600
2500
300
)
Ω
160
R
0, 1
|| (R
EXT
= 150Ω)
R
)
2
|| (R
EXT
= 310Ω)
1400
)
(
T
X
2000
Ω
Ω
)
(
(
T
250
E
140
T
X
R
|
|
= 105Ω)
X
E
1200
Ω
(
T
E
1
120
R
0, 1
|| (R
EXT
DS3906
R
X
,
1500
R
|
E
0
R1R
|
T
EXT1
R
2
200
U
T
R
O
R
U
=
100
H
=
1000
O
E
T
E
V
I
V
I
T
80
100
W
I
T
150
R
H
2
|| (R
EXT
= 250Ω)
T
I
C
C
1
E
E
,
F
F
0
F
800
W
2
F
E
60
R
0, 1
|| (R
EXT
= 50Ω)
500
R
E
R
R
R
100
40
R
2
WITHOUT R
EXT
20
20
R2R
EXT2
50
600
R WITHOUT R
0
0, 1EXT
0
0
400
0
163248
64
016324864
RESISTOR POSITION (dec)
RESISTOR POSITION (dec)
I
2
C is a trademark of Philips Corp. Purchase of I
2
C components of Maxim Integrated Products, Inc., or one of its sublicensed
Associated Companies, conveys a license under the Philips I
2
C Patent Rights to use these components in an I
2
C system, provided
that the system conforms to the I
2
C Standard Specification as defined by Philips Corp.
______________________________________________Maxim Integrated Products1
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at
1-888-629-4642, or visit Maxim’s website at .
DS3906
元器件交易网
Triple NV Low Step Size Variable
Resistor Plus Memory
D
S
3
9
0
6
ABSOLUTE MAXIMUM RATINGS
Voltage on V
CC
, SDA, SCL, and H0-H2 Pins
Relative -0.5V to +6.0V
Voltage on A0, A1, and A2
Relative -0.5V to V
CC
+ 0.5V, not to exceed +6.0V
5mA
Operating -40°C to +85°C
EEPROM Programming .0°C to +70°C
Storage Temperature Range ............................-55°C to +125°C
See J-STD-020 Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(T
A
= -40°C to +85°C)
PARAMETER
Supply Voltage
Input Logic 1
Input Logic 0
Resistor Inputs
Resistor Current
SYMBOL
V
CC
V
IH
V
IL
H0, H1, H2V
CC
= 2.7V to 5.5V
I
R
(Note 1)
CONDITIONSMIN
+2.7
0.7 x
V
CC
-0.3
-0.3
TYPMAX
+5.5
V
CC
+
0.3
0.3 x
V
CC
+5.5
5
UNITS
V
V
V
V
mA
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
Standby Current (Note 2)
Input Leakage for All Pins
Low-Level Output Voltage (SDA)
I/O Capacitance
SYMBOL
I
STBY
I
L
V
OL SDA
C
I/O
3V
5V
(Note 3)
3mA sink current
6mA sink current
-1.0
0
0
CONDITIONSMINTYP
130
160250
+1.0
0.4
0.6
10
MAXUNITS
µA
µA
V
pF
ANALOG RESISTOR CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER
Resistor Tolerance
INL
DNL
Temperature Coefficient
Resistor High-Z
Resistors
R
HIGH-Z
Guaranteed monotonic by design
SYMBOL
(Note 4)
(Note 4)
At position 3Fh (Note 8)
5.5
CONDITIONS
From nominal values in Table 3
MIN
-20
-2
-0.5
60
TYPMAX
+20
+2
+0.5
UNITS
%
LSB
LSB
ppm/°C
MΩ
2_____________________________________________________________________