VOUTA

DAC

Active

Registers

DAC

Buffer

Registers

BUF

Channel A

Power Down Logic

Resistive Network

Power On Reset

DACx3608

SCL

SDA

A0

DAC

VDD

VREFIN

AGND

LDAC

Channel H

VOUTH

CLR

THLD-HI

+

+

THLD-LO

DACx3608

VOUT

VIO

RPULL-UP

R1

R2

VIN

RB

RA

VDAC

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

DAC53608, DAC43608

SLASEQ4A – OCTOBER 2018 – REVISED DECEMBER 2018

DACx3608 Octal, 10-Bit or 8-Bit, I2CTM Interface, Buffered Voltage Output DACs

in Tiny 3 × 3 WQFN Package

1

1 Features

1

•

±1-LSB INL and DNL

•

Wide Operating Range

–

Power Supply: 1.8 V to 5.5 V

–

Temperature Range: –40

˚C to 125˚C

•

I2CTM Serial Interface

–

Standard, Fast, and Fast+ Mode

–

2.4-V, VIH with VDD = 5.5 V

•

LDAC Pin For Simultaneous Output Update

•

Very Low Power: 0.1 mA/Channel at 1.8 V

•

Low Power Startup Mode: Outputs powered down

to 10K State

•

Tiny Package

–

16-Pin WQFN (3 mm × 3 mm)

2 Applications

•

Programmable Power Supplies

•

Programmable Window Comparator

•

VCOM Biasing in Display Panel

•

Laser Driver In Multifunction Printers

•

Auto Focus Digital Still Cameras Lens

•

ATM Machines, Currency Counters, Barcode

Readers

•

IP Network Cameras, Projectors

3 Description

The DAC53608 and DAC43608 (DACx3608) are low-

power, eight-channel, voltage-output, 10-bit or 8-bit

digital-to-analog converters (DACs) respectively. The

DACx3608 are specified monotonic by design across

a wide power supply range from 1.8 V to 5.5 V. Using

an external reference, the DACx3608 provides a full

scale output voltage range of 1.8 V to 5.5 V while

consuming 0.1-mA quiescent current per channel.

The DACx3608 also includes per channel, user

programmable,

power

down

registers.

These

registers facilitate the DAC output buffers to start in a

power down to 10K state and remain in this state until

a power up command is issued to these output

buffers.

Low quiescent current, wide power supply range, and

per channel power down option makes DACx3608

ideal for low power, battery operated systems.

The

devices

communicate

through

the

I2CTM

interface. These devices support I2CTM standard

mode (100 kbps), fast mode (400 kbps), and fast+

mode (1 Mbps). These devices also have a load DAC

(LDAC) pin that allows simultaneous DAC updates.

The DACx3608 are available in small 3-mm × 3-mm,

16-pin

WQFN

package.

The

devices

are

fully

specified over the extended industrial temperature

range of –40°C to +125°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

DAC53608

WQFN (16)

3.00 mm × 3.00 mm

DAC43608

WQFN (16)

3.00 mm × 3.00 mm

(1) For all available packages, refer to the orderable addendum

at the end of the data sheet.

Simplified Block Diagram

Programmable Window Comparator