Datasheet > MAX5547_09

MAX5547_09

更新时间： 2024-09-24 05:49:07

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页数	文件大小	规格书
12页	269K
描述
Dual, 10-Bit, Current-Sink Output DAC

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MAX5547_09 数据手册

19-3988; Rev 2; 7/09

Dual, 10-Bit, Current-Sink Output DAC

MAX547

General Description

Features

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).

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/°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

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.

Package

Ordering Information

Applications

Laser-Driver Control

TEMP

RANGE

PART

PIN-PACKAGE TOP MARK

Pin-Diode Bias Currents

Modulation Currents

MAX5547ETA+ -40°C to +85°C 8 TDFN-EP*

APF

*EP = Exposed pad.

+Denotes a lead(Pb)-free/RoHS-compliant package.

Average Power

Pin Configuration appears at end of data sheet.

Extinction Ratios

Typical Operating Circuit

+2.5V

+3.3V

+2.7V TO +5.25V

+3.3V

REF

MODSET

OUTA

OUTB

OUT-

MAX5547

MAX3736

OUT+

BIAS

BIASSET

GND

FERRITE

BEAD

GND

DIN

SCLK

BC_MON

DIS

+3.3V

MOSI SCLK

MICROCONTROLLER WITH ADC

AIN0

AIN1

AIN2

REF

GND

+3.3V

I/O3

I/O2

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.

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