max5530etct Maxim Integrated Products, Inc., max5530etct Datasheet

max5530etct

Manufacturer Part Number

max5530etct

Description

Ultra-low-power, 12-bit, Voltage-output Dacs

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5530ETCT.pdf (19 pages)

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The MAX5530/MAX5531 are single, 12-bit, ultra-low-

power, voltage-output, digital-to-analog converters

(DACs) offering Rail-to-Rail

The DACs operate from a 1.8V to 5.5V supply and con-

sume less than 6µA, making them desirable for low-

power and low-voltage applications. A shutdown mode

reduces overall current, including the reference input

current, to just 0.18µA. The MAX5530/MAX5531 use a

3-wire serial interface that is compatible with SPI™,

QSPI™, and MICROWIRE™.

At power-up, the MAX5530/MAX5531 outputs are driven

to zero scale, providing additional safety for applications

that drive valves or for other transducers that must be off

during power-up. The zero-scale outputs enable glitch-

free power-up.

The MAX5530 accepts an external reference input. The

MAX5531 contains an internal reference and provides

an external reference output. Both devices have force-

sense-configured output buffers.

The MAX5530/MAX5531 are available in a 4mm x 4mm x

0.8mm, 12-pin, thin QFN package and are guaranteed

over the extended -40°C to +85°C temperature range.

For 10-bit compatible devices, refer to the MAX5520/

MAX5521 data sheet. For 8-bit compatible devices,

refer to the MAX5510/MAX5511 data sheet.

19-3063; Rev 0; 1/04

Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX5530ETC

MAX5531ETC

Portable Battery-Powered Devices

Instrumentation

Automatic Trimming and Calibration in Factory

or Field

Programmable Voltage and Current Sources

Industrial Process Control and Remote

Industrial Devices

Remote Data Conversion and Monitoring

Chemical Sensor Cell Bias for Gas Monitors

Programmable Liquid Crystal Display (LCD) Bias

PART

________________________________________________________________ Maxim Integrated Products

REFERENCE

General Description

External

Internal

buffered voltage outputs.

Selector Guide

Applications

TOP MARK

AACS

AACT

Ultra-Low-Power, 12-Bit,

*EP = Exposed paddle (internally connected to GND).

MAX5530ETC

MAX5531ETC

Ultra-Low 6µA Supply Current

Shutdown Mode Reduces Supply Current to

0.18µA (max)

Single +1.8V to +5.5V Supply

Small 4mm x 4mm x 0.8mm Thin QFN Package

Flexible Force-Sense-Configured Rail-to-Rail

Output Buffers

Internal Reference Sources 8mA of Current

(MAX5531)

Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRE-

Compatible Serial Interface

TTL- and CMOS-Compatible Digital Inputs with

Hysteresis

Glitch-Free Outputs During Power-Up

TOP VIEW

Voltage-Output DACs

PART

SCLK

DIN

REFOUT(MAX5531)

REFIN (MAX5530)

-40°C to +85°C

TEMP RANGE

Ordering Information

THIN QFN

MAX5530

MAX5531

N.C.

Pin Configuration

OUT

N.C.

12 Thin QFN-EP*

PIN-PACKAGE

GND

N.C.

Features

Related parts for max5530etct

max5530etct Summary of contents

Page 1

Rev 0; 1/04 General Description The MAX5530/MAX5531 are single, 12-bit, ultra-low- power, voltage-output, digital-to-analog converters ® (DACs) offering Rail-to-Rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and con- sume less than 6µA, making them ...

Page 2

Ultra-Low-Power, 12-Bit, Voltage-Output DACs ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD OUT to GND ...............................................-0. GND ..................................................-0. GND ..............................-0. SCLK, DIN, REFIN, REFOUT to GND ............................-0.3V to ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +1.8V to +5.5V, OUT unloaded PARAMETER SYMBOL Power-Supply Rejection Ratio REFERENCE INPUT (MAX5530) Reference-Input Voltage Range V Reference-Input Impedance R REFERENCE OUTPUT (MAX5531) Initial Accuracy V Output-Voltage Temperature V Coefficient Line Regulation Load ...

Page 4

Ultra-Low-Power, 12-Bit, Voltage-Output DACs ELECTRICAL CHARACTERISTICS (continued +1.8V to +5.5V, OUT unloaded PARAMETER SYMBOL DAC Power-Up Time Output Power-Up Glitch FB_ Input Current DIGITAL INPUTS (SCLK, DIN, CS) Input High Voltage V Input Low Voltage Input ...

Page 5

TIMING CHARACTERISTICS (V = +4.5V to +5.5V MIN MAX PARAMETER SYMBOL TIMING CHARACTERISTICS (V = 4.5V TO 5.5V) DD Serial Clock Frequency DIN to SCLK Rise Setup Time DIN to SCLK Rise Hold ...

Page 6

Ultra-Low-Power, 12-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5530), V REF DD SUPPLY CURRENT vs. SUPPLY VOLTAGE (MAX5531 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 ...

Page 7

V = 4.096V (MAX5530 REF DNL vs. INPUT CODE ( 5V) DD REF 0.20 0.15 0.10 0.05 0 -0.05 -0.10 -0.15 0 500 1000 1500 2000 2500 3000 3500 4000 4500 DIGITAL ...

Page 8

Ultra-Low-Power, 12-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5530), V REF DD OUTPUT LARGE-SIGNAL STEP RESPONSE ( 3.9V) DD REF MAX5530 toc19 V OUT 500mV/div 200µs/div MAJOR CARRY OUTPUT VOLTAGE GLITCH (CODE 7FFh TO ...

Page 9

V = 4.096V (MAX5530 REF REFERENCE LINE-TRANSIENT RESPONSE (V = 1.2V) REF 100µs/div REFERENCE LOAD TRANSIENT (V = 1.8V) DD 200µs/div REFERENCE LOAD TRANSIENT (V = 1.8V) DD 200µs/div _______________________________________________________________________________________ Ultra-Low-Power, 12-Bit, Voltage-Output DACs Typical ...

Page 10

Ultra-Low-Power, 12-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5530), V REF DD REFERENCE PSRR vs. FREQUENCY 1. 0.01 0.1 FREQUENCY (kHz) REFERENCE OUTPUT NOISE (0.1Hz TO ...

Page 11

PIN NAME MAX5530 MAX5531 SCLK 3 3 DIN 4 — REFIN — 4 REFOUT N. GND 10 10 OUT 12 12 ...

Page 12

Ultra-Low-Power, 12-Bit, Voltage-Output DACs POWER- DOWN CONTROL CONTROL SCLK LOGIC DIN AND SHIFT CS REGISTER Detailed Description The MAX5530/MAX5531 single, 12-bit, ultra-low-power, voltage-output DACs offer Rail-to-Rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and require ...

Page 13

Table 1. Serial Write Data Format CONTROL MSB D11 SCLK DIN CS t CSW Figure 1. Timing Diagram SCLK DIN CONTROL BITS CS Figure 2. Register Loading Diagram ______________________________________________________________________________________ Ultra-Low-Power, ...

Page 14

Ultra-Low-Power, 12-Bit, Voltage-Output DACs Table 2. Serial-Interface Programming Commands CONTROL BITS ...

Page 15

The MAX5530/MAX5531 feature two power modes to conserve power during idle periods. In normal opera- tion, the device is fully operational. In shutdown mode, the device is completely powered down, including the internal voltage reference in the MAX5531. The MAX5531 ...

Page 16

Ultra-Low-Power, 12-Bit, Voltage-Output DACs Applications Information 1-Cell and 2-Cell Circuit See Figure 3 for an illustration of how to power the MAX5530/MAX5531 with either one lithium-ion battery or two alkaline batteries. The low current consumption of the devices makes the ...

Page 17

REFIN DAC MAX5530 V × N REFIN DAC I = LED 4096 × THE NUMERIC VALUE OF THE DAC INPUT CODE. DAC Figure 4. Programmable Current Source Driving an LED DAC REFIN MAX5530 FB I TRANSDUCER T ...

Page 18

Ultra-Low-Power, 12-Bit, Voltage-Output DACs Power Supply and Bypassing Bypass the power supply with a 0.1µF capacitor to GND. Minimize lengths to reduce lead inductance. If noise becomes an issue, use shielding and/or ferrite beads to increase isolation. For the thin ...

Page 19

For the latest package outline information www.maxim-ic.com/packages Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim ...

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