DS4424N+T&R Maxim Integrated Products, DS4424N+T&R Datasheet

IC DAC 7BIT 4CH 5.5V 14-TDFN

DS4424N+T&R

Manufacturer Part Number
DS4424N+T&R
Description
IC DAC 7BIT 4CH 5.5V 14-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS4424N+T&R

Number Of Bits
7
Data Interface
Serial
Number Of Converters
4
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
Settling Time
-
The DS4422 and DS4424 contain two or four I
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 I
outputs power up in a high-impedance state.
19-4744; Rev 1; 7/09
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
EP = Exposed pad.
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.
DS4422N+
DS4422N+T&R
DS4424N+
DS4424N+T&R
PART
Power-Supply Adjustment
Power-Supply Margining
Adjustable Current Sink or Source
R
PU
Two-/Four-Channel, I
OUTPUTS
_______________________________________________________________ Maxim Integrated Products
R
PU
2
2
4
4
Ordering Information
General Description
SDA
SCL
A1
A0
GND
2
C interface. The current DAC
R
FS0
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
FS0
DS4422/
DS4424
V
CC
Applications
FS1
R
OUT0
OUT1
FS1
PIN-
PACKAGE
14 TDFN-EP
14 TDFN-EP
14 TDFN-EP
14 TDFN-EP
2
C pro-
CONVERTER
DC-DC
V
CC
♦ Two (DS4422) or Four (DS4424) Current DACs
♦ Full-Scale Current 50µA to 200µA
♦ Full-Scale Range for Each DAC Determined by
♦ 127 Settings Each for Sink and Source Modes
♦ I
♦ Two Address Pins Allow Four Devices on Same
♦ 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.
External Resistors
I
2
2
C-Compatible Serial Interface
C Bus
2
OUT
FB
C, 7-Bit Sink/Source
V
OUT0
R
R
0A
0B
Typical Operating Circuit
CONVERTER
Current DAC
DC-DC
OUT
FB
V
OUT1
R
R
Features
1A
1B
1

Related parts for DS4424N+T&R

DS4424N+T&R Summary of contents

Page 1

... DS4422/ A1 DS4424 A0 GND FS0 R FS0 _______________________________________________________________ Maxim Integrated Products 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 7-Bit Sink/Source 2 C pro- ♦ Two (DS4422) or Four (DS4424) Current DACs ♦ Full-Scale Current 50µA to 200µA ♦ ...

Page 2

Two-/Four-Channel, I Current DAC ABSOLUTE MAXIMUM RATINGS Voltage Range SDA, and SCL CC 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 ...

Page 3

Two-/Four-Channel, I OUTPUT CURRENT SOURCE CHARACTERISTICS (continued +2.7V to +5.5V -40°C to +85°C.) CC PARAMETER SYMBOL Output Current Variation Due to Power-Supply Change Output Current Variation Due to Output-Voltage Change Output Leakage Current at Zero ...

Page 4

Two-/Four-Channel, I Current DAC (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. SUPPLY VOLTAGE 250 200 150 100 DOES NOT INCLUDE CURRENT DRAWN BY RESISTORS CONNECTED TO FS0, FS1, FS2, OR FS3 50 0 2.5 3.0 3.5 4.0 ...

Page 5

Two-/Four-Channel, I PIN NAME DS4424 DS4422 SDA SCL GND Ground 4 — FS3 Full-Scale Calibration Input. A resistor to ground on these pins determines the full-scale 5 — FS2 current ...

Page 6

Two-/Four-Channel, I Current DAC Detailed Description The DS4422/DS4424 contain two or four I current sources that are each capable of sinking and sourcing current. Each output (OUT0, OUT1, OUT2, and OUT3) has 127 sink and 127 source settings that can ...

Page 7

Two-/Four-Channel, I Example 80kΩ and register 0xF8h is written to FS0 a value of 0xAAh. Calculate the output current (0.976V/80kΩ) x (127/16) = 96.838µA FS The MSB of the output register the output ...

Page 8

Two-/Four-Channel, I Current DAC 2 TYPICAL I C WRITE TRANSACTION MSB LSB START R/W READ/ SLAVE WRITE ADDRESS* 2 EXAMPLE I C TRANSACTIONS (WHEN A0 AND A1 ARE GROUNDED) 20h A) SINGLE BYTE ...

Page 9

Two-/Four-Channel, I 4.7kΩ 4.7kΩ SDA SCL A1 A0 GND *V AND V VALUES ARE DETERMINED BY THE DC-DC CONVERTER AND SHOULD NOT BE CONFUSED WITH V OUT FB Figure 3. Example Application Circuit Applications Information Example Calculations for an Adjustable ...

Page 10

Two-/Four-Channel, I Current DAC Pin Configuration TOP VIEW 1 SDA SCL 2 3 GND FS3 (N.C.) 4 DS4422/ DS4424 FS2 (N.C.) 5 FS1 6 *EP FS0 INDICATES DS4422 ONLY. *EXPOSED PAD 10 ______________________________________________________________________________________ 2 C, 7-Bit Sink/Source ...

Page 11

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2009 Maxim Integrated Products ...

Related keywords