max5141euat Maxim Integrated Products, Inc., max5141euat Datasheet

max5141euat

Manufacturer Part Number

max5141euat

Description

+3v/+5v, Serial-input, Voltage-output, 14-bit Dacs

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5141EUAT.pdf (12 pages)

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The MAX5141–MAX5144 are serial-input, voltage-output,

14-bit digital-to-analog converters (DACs) in tiny µMAX

packages, 50% smaller than comparable DACs in an

8-pin SO. They operate from low +3V (MAX5143/

MAX5144) or +5V (MAX5141/MAX5142) single supplies.

They provide 14-bit performance (±1LSB INL and DNL)

over temperature without any adjustments. The DAC out-

put is unbuffered, resulting in a low supply current of

120µA and a low offset error of 2LSBs.

The DAC output range is 0V to V

tion, matched scaling resistors are provided in the

MAX5142/MAX5144 for use with an external precision op

amp (such as the MAX400), generating a ±V

swing.

A 16-bit serial word is used to load data into the DAC

latch. The 25MHz, 3-wire serial interface is compatible

with SPI™/QSPI™/MICROWIRE™, and can interface

directly with optocouplers for applications requiring isola-

tion. A power-on reset circuit clears the DAC output to

code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/

MAX5144) when power is initially applied.

A logic low on CLR asynchronously clears the DAC out-

put to code 0 (MAX5141/MAX5143) or code 8192

(MAX5142/MAX5144), independent of the serial interface.

The MAX5141/MAX5143 are available in 8-pin µMAX

packages and the MAX5142/MAX5144 are available in

10-pin µMAX packages.

19-1849; Rev 1; 5/01

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.

M A X5 1 4 1E U A

M A X5 1 4 2E U B

M A X5 1 4 3E U A

M A X5 1 4 4E U B

High-Resolution and Gain Adjustment

Industrial Process Control

Automated Test Equipment

Data-Acquisition Systems

PART

________________________________________________________________ Maxim Integrated Products

General Description

-40°C to +85°C

T EM P. RA N G E

REF.

Applications

For bipolar opera-

REF

Voltage-Output, 14-Bit DACs

output

PIN - PAC K A GE

10 µMAX

8 µMAX

o Miniature (3mm x 5mm) 8-Pin µMAX Package

o Low 120µA Supply Current

o Fast 1µs Settling Time

o 25MHz SPI/QSPI/MICROWIRE-Compatible Serial

o V

o +5V (MAX5141/MAX5142) or +3V

o Full 14-Bit Performance Without Adjustments

o Unbuffered Voltage Output Directly Drives 60kΩ

o Power-On Reset Circuit Clears DAC Output to

o Schmitt-Trigger Inputs for Direct Optocoupler

o Asynchronous CLR

SCLK

Interface

(MAX5143/MAX5144) Single-Supply Operation

Loads

Code 0 (MAX5141/MAX5143) or Code 8192

(MAX5142/MAX5144)

Interface

DIN

REF

+3V/+5V, Serial-Input,

REF

TOP VIEW

Range Extends to V

MAX5141

MAX5143

IN L ( L SB )

µMAX

± 1

R A NG E ( V)

Ordering Information

SU PPL Y

GND

OUT

CLR

Pin Configurations

SCLK

CLR

REF

DIN

O U TPU T SWING

MAX5142

MAX5144

µMAX

U nip ol ar

Bi pol ar

U nip ol ar

Bi pol ar

Features

GND

RFB

INV

OUT

Related parts for max5141euat

max5141euat Summary of contents

Page 1

Rev 1; 5/01 General Description The MAX5141–MAX5144 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) in tiny µMAX packages, 50% smaller than comparable DACs in an 8-pin SO. They operate from low +3V (MAX5143/ MAX5144) or +5V (MAX5141/MAX5142) single supplies. ...

Page 2

Serial-Input, Voltage-Output, 14-Bit DACs ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD CS, SCLK, DIN, CLR to GND ...................................-0.3V to +6V REF to GND................................................-0. OUT, INV to GND .....................................................-0. RFB to INV ...................................................................-6V ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142 unless otherwise noted. Typical values are at T PARAMETER SYMBOL DYNAMIC PERFORMANCE—REFERENCE SECTION Reference -3dB Bandwidth BW Reference Feedthrough Signal-to-Noise Ratio SNR Reference Input Capacitance C INREF STATIC ...

Page 4

Serial-Input, Voltage-Output, 14-Bit DACs (V = +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142 noted. Typical values are +25°C.) A SUPPLY CURRENT vs. TEMPERATURE 0.150 0.125 V = +5V DD 0.100 V = +3V DD 0.075 0.050 ...

Page 5

V DD noted. Typical values are +25°C.) A REFERENCE CURRENT vs. DIGITAL INPUT CODE 140 120 100 10k 15k 20k INPUT CODE MAJOR-CARRY ...

Page 6

Serial-Input, Voltage-Output, 14-Bit DACs PIN NAME MAX5141 MAX5142 MAX5143 MAX5144 1 1 REF SCLK 4 4 DIN CLR OUT — 7 INV — 8 RFB ...

Page 7

MC68XXXX PCS0 MOSI SCLK IC1 (GND) Figure 2a. Typical Operating Circuit—Unipolar Output MC68XXXX PCS0 MOSI SCLK IC1 (GND) Figure 2b. Typical Operating Circuit—Bipolar Output Detailed Description The MAX5141–MAX5144 voltage-output, 14-bit digital- to-analog converters (DACs) offer full 14-bit perfor- mance with ...

Page 8

Serial-Input, Voltage-Output, 14-Bit DACs to a standard R-2R ladder, allowing unbuffered opera- tion in medium-load applications. The MAX5142/MAX5144 provide matched bipolar offset resistors, which connect to an external op amp for bipo- lar output swings (Figure 2b). Digital Interface ...

Page 9

The circuit can benefit from even larger bypassing capacitors, depending on the stability of the external reference with capacitive load- ing. Unbuffered Operation Unbuffered operation reduces power consumption as well as offset error contributed by the ...

Page 10

Serial-Input, Voltage-Output, 14-Bit DACs Unipolar Configuration Figure 2a shows the MAX5141–MAX5144 configured for unipolar operation with an external op amp. The op amp is set for unity gain, and Table 1 lists the codes for this circuit. Bipolar MAX5142/MAX5144 ...

Page 11

Information ______________________________________________________________________________________ +3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs 11 ...

Page 12

Serial-Input, Voltage-Output, 14-Bit DACs 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 ...

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