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Numéro de référence | DS4422 | ||
Description | (DS4422 / DS4424) 7-Bit Sink/Source Current DAC | ||
Fabricant | Maxim Integrated Products | ||
Logo | |||
1 Page
Rev 0; 3/08
Two-/Four-Channel, I2C, 7-Bit Sink/Source
Current DAC
General Description
The DS4422 and DS4424 contain two or four I2C pro-
grammable current DACs that are each capable of
sinking and sourcing current up to 200µA. Each DAC
output has 127 sink and 127 source settings that are
programmed using the I2C interface. The current DAC
outputs power up in a high-impedance state.
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Applications
Power-Supply Adjustment
Power-Supply Margining
Adjustable Current Sink or Source
Ordering Information
PART
OUTPUTS TEMP RANGE
DS4422N+
2 -40°C to +85°C
DS4422N+T&R
2 -40°C to +85°C
DS4424N+
4 -40°C to +85°C
DS4424N+T&R
4 -40°C to +85°C
+Denotes a lead-free package.
T&R = Tape and reel.
PIN-
PACKAGE
14 TDFN
14 TDFN
14 TDFN
14 TDFN
Features
♦ Two (DS4422) or Four (DS4424) Current DACs
♦ Full-Scale Current 50µA to 200µA
♦ Full-Scale Range for Each DAC Determined by
External Resistors
♦ 127 Settings Each for Sink and Source Modes
♦ I2C-Compatible Serial Interface
♦ Two Address Pins Allow Four Devices on Same
I2C Bus
♦ Low Cost
♦ Small Package (14-Pin, 3mm x 3mm TDFN)
♦ -40°C to +85°C Temperature Range
♦ 2.7V to 5.5V Operating Range
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
RPU RPU
VCC
SDA
SCL
A1 DS4422/ OUT0
A0 DS4424 OUT1
GND
FS0
RFS0
FS1
RFS1
VCC VOUT0
OUT
DC-DC
CONVERTER
FB
R0A
R0B
VOUT1
OUT
DC-DC
CONVERTER
FB
R1A
R1B
_______________________________________________________________ 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.
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Pages | Pages 10 | ||
Télécharger | [ DS4422 ] |
No | Description détaillée | Fabricant |
DS4420 | I2C Programmable Gain Amplifier | Maxim Integrated Products |
DS4422 | (DS4422 / DS4424) 7-Bit Sink/Source Current DAC | Maxim Integrated Products |
DS4424 | (DS4422 / DS4424) 7-Bit Sink/Source Current DAC | Maxim Integrated Products |
DS4425 | (DS4106 - DS4425) Clock Oscillators | Maxim Integrated Products |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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