adjustable current DACs, respectively, that are each
capable of sinking or sourcing current. Each output has
31 sink and 31 source settings that are programmed by
the I
2
C interface. External resistors set the full-scale
range and step size of each output.
Features
♦
Two (DS4402) or Four (DS4404) Current DACs
♦
Full-Scale Range for Each DAC Determined by
External Resistors
♦
31 Settings Each for Sink and Source Modes
♦
I
2
C-Compatible Serial Interface
♦
Two Three-Level Address Pins Allow Nine
Devices on Same I
2
C Bus
♦
Small Package (14-Pin TDFN)
♦
-40°C to +85°C Temperature Range
♦
2.7V to 5.5V Operation
DS4402/DS4404
Applications
Power-Supply Adjustment
Power-Supply Margining
Adjustable Current Sink or Source
Pin Configuration
TOP VIEW
SDA
SCL
GND
FS3 (N.C.)
FS2 (N.C.)
FS1
FS0
1
2
3
4
5
6
*EP
7
8
OUT0
14
13
12
11
OUT3 (N.C.)
V
CC
OUT2 (N.C.)
A1
OUT1
A0
Ordering Information
PART
DS4402N+
DS4402N+T&R
DS4404N+
DS4404N+T&R
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 TDFN-EP*
14 TDFN-EP*
14 TDFN-EP*
14 TDFN-EP*
TDFN
(3mm
×
3mm
×
0.8mm)
*EXPOSED PAD
( ) INDICATES FOR DS4402 ONLY.
+
DS4404/
DS4402
10
9
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP
= Exposed pad.
Typical Operating Circuit
V
CC
V
OUT0
V
OUT1
4.7kΩ
4.7kΩ
SDA
SCL
A1
A0
GND
V
CC
DC/DC
CONVERTER
OUT
R
0A
FB
R
0B
DC/DC
CONVERTER
FB
R
1B
OUT
R
1A
DS4402
OUT0
OUT1
FS0
R
FS0
FS1
R
FS1
______________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Two/Four-Channel, I
2
C Adjustable Current DAC
DS4402/DS4404
ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
CC
, SDA, and SCL
Relative to Ground.............................................-0.5V to +6.0V
Voltage Range on A0, A1, FS0, FS1, FS2, FS3,
OUT0, OUT1, OUT2, and OUT3 Relative to
Ground ................-0.5V to (V
CC
+ 0.5V) (Not to exceed 6.0V.)
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature .....................................Refer to IPC/JEDEC
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.
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