MAX5547ETA+T Maxim Integrated Products, MAX5547ETA+T Datasheet

IC DAC 10BIT DUAL 8-TDFN

MAX5547ETA+T

Manufacturer Part Number
MAX5547ETA+T
Description
IC DAC 10BIT DUAL 8-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5547ETA+T

Settling Time
10µs
Number Of Bits
10
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
The MAX5547 dual, 10-bit, dual range, digital-to-analog
converter (DAC) sinks up to 3.6mA of current, making it
ideal for laser-driver-control applications. Parallel the
MAX5547 outputs to sink higher current (up to 7.2mA
max). Operating from a single +2.7V to +5.25V
supply, the MAX5547 typically consumes 1mA
(internal reference).
The MAX5547 operates from a precision +2.5V internal
4ppm/°C reference or an external reference in the
+2.45V to +2.55V range. The maximum full-scale cur-
rent-sink range is software programmable to 3.6mA or
1.2mA for each DAC. A 10MHz SPI™-compatible serial
interface configures the device.
The MAX5547 is available in a 3mm x 3mm x 0.8mm 8-
pin TDFN package and is specified over the -40°C to
+85°C extended temperature range.
19-3988; Rev 2; 7/09
SPI is a trademark of Motorola, Inc.
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.
Laser-Driver Control
Pin-Diode Bias Currents
Modulation Currents
Average Power
Extinction Ratios
TX_DISABLE
MOD-DEF1
MOD-DEF2
________________________________________________________________ Maxim Integrated Products
GND
REF
General Description
CS
CS
Dual, 10-Bit, Current-Sink Output DAC
+2.5V
REF
MOSI
DIN
MICROCONTROLLER WITH ADC
I/O1
MAX5547
SCLK
SCLK
Applications
+2.7V TO +5.25V
I/O2
V
DD
I/O3
GND
OUTA
OUTB
+3.3V
V
CC
AIN0
AIN1
AIN2
I
I
MODSET
BIASSET
GND
+3.3V
o Dual Current-Sink DACs
o 10-Bit Resolution
o Two Software-Programmable Full-Scale Current
o Parallelable Outputs for Up to 7.2mA (max)
o +2.5V Internal Reference Drifts Only 4ppm/°C
o +2.7V to +5.25V Single-Supply Operation
o INL: ±1 LSB
o DNL: ±0.75 LSB (Guaranteed Monotonic)
o Low +0.8V Output Compliance
o Ultra-Small, 3mm x 3mm x 0.8mm, 8-Pin TDFN
* EP = Exposed pad.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration appears at end of data sheet.
MAX5547ETA+ -40°C to +85°C 8 TDFN-EP*
+3.3V
Ranges: 3.6mA or 1.2mA
Package
V
MAX3736
DIS
CC
PART
BC_MON
OUT+
OUT-
BIAS
Typical Operating Circuit
RANGE
TEMP
FERRITE
Ordering Information
BEAD
+3.3V
PIN-PACKAGE TOP MARK
Features
APF
1

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MAX5547ETA+T Summary of contents

Page 1

... GND I/O1 TX_DISABLE MOD-DEF1 MOD-DEF2 SPI is a trademark of Motorola, Inc. ________________________________________________________________ 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. o Dual Current-Sink DACs o 10-Bit Resolution o Two Software-Programmable Full-Scale Current Ranges: 3.6mA or 1.2mA o Parallelable Outputs for Up to 7.2mA (max) o +2.5V Internal Reference Drifts Only 4ppm/° ...

Page 2

Dual, 10-Bit, Current-Sink Output DAC ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V DD OUTA, OUTB, REF to GND ........................-0. SCLK, DIN GND ............................................-0.3V to +6V Continuous Power Dissipation (T = +70°C) A 8-Pin TDFN ...

Page 3

Dual, 10-Bit, Current-Sink Output DAC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V 0V, external reference = +2.5V, output voltage = +2.0V GND V = +3.0V, and T = +25°C.) (Note PARAMETER SYMBOL ...

Page 4

Dual, 10-Bit, Current-Sink Output DAC ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V 0V, external reference = +2.5V, output voltage = +2.0V GND V = +3.0V, and T = +25°C.) (Note PARAMETER SYMBOL ...

Page 5

Dual, 10-Bit, Current-Sink Output DAC (V = +3.0V 0V, external reference = +2.5V GND DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (3.6mA SETTING) 1.00 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 256 512 768 DIGITAL ...

Page 6

Dual, 10-Bit, Current-Sink Output DAC (V = +3.0V 0V, external reference = +2.5V GND SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.12 INTERNAL REFERENCE SCLK = DIN = GND 1.11 1.10 1.09 1.08 2.5 3.0 3.5 ...

Page 7

Dual, 10-Bit, Current-Sink Output DAC (V = +3.0V 0V, external reference = +2.5V GND SETTLING TIME (FULL-SCALE NEGATIVE STEP 3.6mA) OUT_ MAX5547 toc22 SCLK 2V/div 15 16 GND 3V OUT_ 500mV/div V = 3V, ...

Page 8

Dual, 10-Bit, Current-Sink Output DAC PIN NAME Supply Voltage. Set the device as possible. CS Active-Low Chip-Select Input. Set CS low to enable the serial interface SCLK Serial-Clock Input 4 DIN Serial-Data Input. DIN ...

Page 9

Dual, 10-Bit, Current-Sink Output DAC CSS CL CH SCLK DIN C3 Figure 1. SPI Serial-Interface Timing Diagram Set CS low to begin clocking input data at DIN on the falling edge of ...

Page 10

Dual, 10-Bit, Current-Sink Output DAC Table 1. Command Word Summary MSB CONTROL BITS ...

Page 11

Dual, 10-Bit, Current-Sink Output DAC +2.5V REF +2.5V REFERENCE SERIAL INTERFACE CS DIN Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ +2.7V TO +5.25V V DD DAC A DAC REGISTER A RANGE CONTROL DACB DAC REGISTER B RANGE CONTROL GND SCLK For the ...

Page 12

... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION and linearity information ...

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