max5253aepp Maxim Integrated Products, Inc., max5253aepp Datasheet

max5253aepp

Manufacturer Part Number

max5253aepp

Description

Max5253 +3v, Quad, 12-bit Voltage-output Dac With Serial Interface

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5253AEPP.pdf (16 pages)

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The MAX5253 combines four low-power, voltage-output,

12-bit digital-to-analog converters (DACs) and four pre-

cision output amplifiers in a space-saving, 20-pin pack-

age. In addition to the four voltage outputs, each

amplifier’s negative input is also available to the user.

This facilitates specific gain configurations, remote

sensing, and high output drive capacity, making the

MAX5253 ideal for industrial-process-control applica-

tions. Other features include software shutdown, hard-

ware shutdown lockout, an active-low reset which clears

all registers and DACs to zero, a user-programmable

logic output, and a serial-data output.

Each DAC has a double-buffered input organized as an

input register followed by a DAC register. A 16-bit serial

word loads data into each input/DAC register. The serial

interface is compatible with SPI™/QSPI™ and

MICROWIRE™. It allows the input and DAC registers to

be updated independently or simultaneously with a sin-

gle software command. The DAC registers can be

simultaneously updated through the 3-wire serial inter-

face. All logic inputs are TTL/CMOS-logic compatible.

__________________General Description

________________________Applications

19-1123; Rev 1; 10/02

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.

_________________________________________________________________________Functional Diagram

Industrial Process Controls

Automatic Test Equipment

Digital Offset and Gain Adjustment

Motion Control

Remote Industrial Controls

Microprocessor-Controlled Systems

________________________________________________________________ Maxim Integrated Products

DOUT

CS DIN SCLK

CONTROL

+3V, Quad, 12-Bit Voltage-Output DAC

16-BIT

SHIFT

OUTPUT

CONTROL

DECODE

LOGIC

UPO

PDL

DGND

INPUT

AGND

DAC B

DAC C

DAC D

DAC A

o Four 12-Bit DACs with Configurable

o +3.0V to +3.6V Single-Supply Operation

o Low Supply Current: 0.82mA Normal Operation

o Reference Inputs are High Impedance in Shutdown

o Available in 20-Pin SSOP

o Power-On Reset Clears all Registers and

o SPI/QSPI and MICROWIRE Compatible

o Simultaneous or Independent Control of DACs

o User-Programmable Digital Output

Ordering Information continued at end of data sheet.

Pin Configuration appears at end of data sheet.

______________________________Features

_________________Ordering Information

MAX5253ACPP

MAX5253BCPP

MAX5253ACAP

MAX5253BCAP

MAX5253

Output Amplifiers

DACs to Zero

Through 3-Wire Serial Interface

PART

with Serial Interface

DAC A

DAC C

DAC B

DAC D

REFCD

REFAB

TEMP RANGE

0°C to +70°C

3µA Shutdown Mode

20 Plastic DIP

20 SSOP

PIN-PACKAGE

FBA

FBB

OUTB

FBC

OUTC

FBD

OUTD

OUTA

(LSB)

±1/2

±1

±1/2

±1

INL

Related parts for max5253aepp

max5253aepp Summary of contents

Page 1

Rev 1; 10/02 +3V, Quad, 12-Bit Voltage-Output DAC __________________General Description The MAX5253 combines four low-power, voltage-output, 12-bit digital-to-analog converters (DACs) and four pre- cision output amplifiers in a space-saving, 20-pin pack- age. In addition to the four voltage outputs, ...

Page 2

Quad, 12-Bit Voltage-Output DAC with Serial Interface ABSOLUTE MAXIMUM RATINGS V to AGND...............................................................-0.3V, + DGND ..............................................................-0.3V, +6V DD AGND to DGND ..................................................................±0.3V REFAB, REFCD to AGND ...........................-0. OUT_, FB_ to AGND...................................-0. Digital ...

Page 3

Quad, 12-Bit Voltage-Output DAC ELECTRICAL CHARACTERISTICS (continued +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD = 1.25V noted. Typical values are +25°C. Output buffer connected in unity-gain configuration (Figure ...

Page 4

Quad, 12-Bit Voltage-Output DAC with Serial Interface TIMING CHARACTERISTICS (V = +3.0V to +3.6V, AGND = DGND = 0V, REFAB = REFCD =1.25V noted. Typical values are +25°C. Output buffer connected in unity-gain configuration ...

Page 5

Quad, 12-Bit Voltage-Output DAC ____________________________Typical Operating Characteristics (continued +3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 1000 950 900 850 800 750 700 650 600 550 CODE = FFF HEX 500 ...

Page 6

Quad, 12-Bit Voltage-Output DAC with Serial Interface ____________________________Typical Operating Characteristics (continued +3.3V +25°C, unless otherwise noted MAJOR-CARRY TRANSITION 10 s/div V = 1.25V 100pF REF L L ...

Page 7

Quad, 12-Bit Voltage-Output DAC ______________________________________________________________Pin Description PIN NAME 1 AGND Analog Ground 2 FBA DAC A Output Amplifier Feedback 3 OUTA DAC A Output Voltage 4 OUTB DAC B Output Voltage 5 FBB DAC B Output Amplifier Feedback 6 ...

Page 8

Quad, 12-Bit Voltage-Output DAC with Serial Interface D10 REF_ AGND SHOWN FOR ALL 1s ON DAC Figure 1. Simplified DAC Circuit Diagram _______________Detailed Description The MAX5253 contains four 12-bit, voltage-output ...

Page 9

Quad, 12-Bit Voltage-Output DAC In shutdown mode, the MAX5253 output amplifiers and the reference inputs enter a high-impedance state. The serial interface remains active. Data in the input regis- ters is retained in shutdown, allowing the MAX5253 to recall ...

Page 10

Quad, 12-Bit Voltage-Output DAC with Serial Interface Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD D11................. MSB 12-bit DAC data 12-bit DAC data ...

Page 11

Quad, 12-Bit Voltage-Output DAC CS SCLK 1 A0 DIN DOUT (MODE 0) MSB FROM PREVIOUS WRITE DOUT D11 D10 D9 (MODE 1) MSB FROM PREVIOUS WRITE Figure 5. ...

Page 12

Quad, 12-Bit Voltage-Output DAC with Serial Interface MAX5253 SCLK SCLK DIN DIN CS CS Figure 7. Daisy-Chaining MAX5253s DIN SCLK CS1 CS2 CS3 CS MAX5253 SCLK DIN Figure 8. Multiple MAX5253s Sharing a Common DIN Line 12 ______________________________________________________________________________________ MAX5253 ...

Page 13

Quad, 12-Bit Voltage-Output DAC __________Applications Information For a unipolar output, the output voltages and the refer- ence inputs have the same polarity. Figure 9 shows the MAX5253 unipolar output circuit, which is also the typi- cal operating circuit. Table ...

Page 14

Quad, 12-Bit Voltage-Output DAC with Serial Interface +3.3V REFERENCE INPUTS MAX5253 REFAB V REFCD DD DAC A DAC B DAC C DAC D AGND DGND 1.25V REFAB REFCD Figure 10. Unipolar Rail-to-Rail Output Circuit R1 ...

Page 15

Quad, 12-Bit Voltage-Output DAC REF_ MAX5253 DAC_ Figure 13. Digitally Programmable Current Source Power-Supply Considerations On power-up, all input and DAC registers are cleared (set to zero code) and DOUT is in Mode 0 (serial data is shifted out ...

Page 16

... Quad, 12-Bit Voltage-Output DAC with Serial Interface _Ordering Information (continued) PART TEMP RANGE PIN-PACKAGE MAX5253BC/D 0°C to +70°C Dice* MAX5253AEPP -40°C to +85°C 20 Plastic DIP MAX5253BEPP -40°C to +85°C 20 Plastic DIP MAX5253AEAP -40°C to +85°C 20 SSOP MAX5253BEAP -40°C to +85°C 20 SSOP MAX5253BMJP -55° ...

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