Rainbow-electronics MAX533 Manual do Utilizador descarregar pdf

_______________General Description

The MAX533 serial-input, voltage-output, 8-bit quad

digital-to-analog converter (DAC) operates from a sin-

gle +2.7V to +3.6V supply. Internal precision buffers

swing rail to rail, and the reference input range includes

both ground and the positive rail. The MAX533 features

a 1µA shutdown mode.

The serial interface is double buffered: a 12-bit input

shift register is followed by four 8-bit buffer registers

and four 8-bit DAC registers. The 12-bit serial word

consists of eight data bits and four control bits (for DAC

selection and special programming commands). Both

the input and DAC registers can be updated indepen-

dently or simultaneously with a single software com-

mand. Two additional asynchronous control pins, LDAC

and CLR, provide simultaneous updating or clearing of

the input and DAC registers.

The interface is compatible with SPI™, QSPI™ (CPOL =

CPHA = 0 or CPOL = CPHA = 1), and Microwire™. A

buffered data output allows daisy chaining of serial

devices.

In addition to 16-pin DIP and CERDIP packages, the

MAX533 is available in a 16-pin QSOP that occupies

the same area as an 8-pin SO.

________________________Applications

Digital Gain and Offset Adjustments

Programmable Attenuators

Programmable Current Sources

Portable Instruments

____________________________Features

♦ +2.7V to +3.6V Single-Supply Operation

♦ Ultra-Low Supply Current:

0.7mA while Operating

1µA in Shutdown Mode

♦ Ultra-Small 16-Pin QSOP Package

♦ Ground to V

Reference Input Range

♦ Output Buffer Amplifiers Swing Rail to Rail

♦ 10MHz Serial Interface, Compatible with SPI, QSPI

(CPOL = CPHA = 0 or CPOL = CPHA = 1), and

Microwire

♦ Double-Buffered Registers for Synchronous

Updating

♦ Serial Data Output for Daisy Chaining

♦ Power-On Reset Clears Serial Interface and Sets

All Registers to Zero

♦ Software Shutdown

♦ Software-Programmable Logic Output

♦ Asynchronous Hardware Clear Resets All Internal

Registers to Zero

MAX533

2.7V, Low-Power, 8-Bit Quad DAC

with Rail-to-Rail Output Buffers

________________________________________________________________

Maxim Integrated Products

OUTC

OUTD

AGND



DGND

DIN

SCLK

OUTB

OUTA

REF

UPO

PDE

LDAC

CLR

DOUT

TOP VIEW

MAX533

DIP/QSOP

__________________Pin Configuration

19-1080; Rev 0; 6/96

PART

MAX533ACPE

MAX533BCPE

MAX533ACEE 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 Plastic DIP

16 QSOP

______________Ordering Information

*Dice are tested at T

= +25°C.

**Contact factory for availability and processing to MIL-STD-883.

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.

Functional Diagram appears at end of data sheet.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

MAX533BCEE 0°C to +70°C 16 QSOP

MAX533BC/D 0°C to +70°C Dice*

MAX533AEPE -40°C to +85°C 16 Plastic DIP

MAX533BEPE -40°C to +85°C 16 Plastic DIP

MAX533AEEE -40°C to +85°C 16 QSOP

MAX533BEEE -40°C to +85°C 16 QSOP

MAX533AMJE -55°C to +125°C 16 CERDIP**

MAX533BMJE -55°C to +125°C 16 CERDIP**

INL

(LSB)

±1

±2

±1

±2

±1

±2

±1

±2

±1

±2

1 2 3 4 5 6 ... 15 16

Resumo do Conteúdo

Página 1 - Programmable Attenuators

_______________General DescriptionThe MAX533 serial-input, voltage-output, 8-bit quaddigital-to-analog converter (DAC) operates from a sin-gle +2.7V t

Página 2 - ELECTRICAL CHARACTERISTICS

Load All DACs with Shift-Register DataAll four DAC registers are updated with shift-registerdata. This command allows all DACs to be set to anyanalog

Página 3 - TIMING CHARACTERISTICS