AD5425 datasheet, PDF - EEWORLD Datasheet

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AD5425: DescriptionSERIAL INPUT LOADING, 0.09 us SETTLING TIME, 8-BIT DAC, PDSO10; Categorysemiconductor logic; File Size495KB，24 Pages; ManufacturerADI; Websitehttps://www.analog.com

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AD5425 Overview

SERIAL INPUT LOADING, 0.09 us SETTLING TIME, 8-BIT DAC, PDSO10

AD5425 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	10
Maximum operating temperature	125 Cel
Minimum operating temperature	-40 Cel
Rated supply voltage	2.5 V
Maximum linear error	0.0977 %
Processing package description	MO-187BA, MSOP-10
state	ACTIVE
Craftsmanship	CMOS
packaging shape	SQUARE
Package Size	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.5000 mm
terminal coating	TIN LEAD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE
Input format	SERIAL
Type of converter	8-BIT DAC
Input bit encoding	BINARY
Rated settling time	0.0900 us
Maximum analog output voltage	5.2 V
Minimum analog output voltage	0.0 V

User Manual

【User Guides】UG-937: Using the EVAL-1CH2CHSOICEBZ iCoupler Standard Data Isolator Evaluation Board (Rev. 0)

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Data Sheet

FEATURES

2.5 V to 5.5 V supply operation

50 MHz serial interface

2.47 MSPS update rate

INL of ±0.25 LSB

10 MHz multiplying bandwidth

±10 V reference input

Low glitch energy: <2 nV-s

Extended temperature range: −40°C to +125°C

10-lead MSOP package

Guaranteed monotonic

4-quadrant multiplication

Power-on reset with brownout detection

LDAC function

0.4 µA typical power consumption

8-Bit, High Bandwidth

Multiplying DAC with Serial Interface

AD5425

GENERAL DESCRIPTION

The

AD5425

is a CMOS, 8-bit, current output digital-to-analog

converter (DAC) that operates from a 2.5 V to 5.5 V power supply,

making it suitable for battery-powered applications and many

other applications.

This DAC utilizes a double buffered, 3-wire serial interface that

is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP

interface standards. An LDAC pin is also provided, which

allows simultaneous updates in a multiDAC configuration. On

power-up, the internal shift register and latches are filled with

0s and the DAC outputs are 0 V.

As a result of manufacturing on a CMOS submicron process,

this DAC offers excellent 4-quadrant multiplication charac-

teristics with large signal multiplying bandwidths of 10 MHz.

The applied external reference input voltage (V

REF

) determines

the full-scale output current. An integrated feedback resistor,

, provides temperature tracking and full-scale voltage output

when combined with an external I to V precision amplifier.

The

AD5425

is available in a small, 10-lead MSOP package.

APPLICATIONS

Portable battery-powered applications

Waveform generators

Analog processing

Instrumentation applications

Programmable amplifiers and attenuators

Digitally controlled calibration

Programmable filters and oscillators

Composite video

Ultrasound

Gain, offset, and voltage trimming

REF

FUNCTIONAL BLOCK DIAGRAM

AD5425

8-BIT

R-2R DAC

OUT

LDAC

POWER-ON

RESET

DAC REGISTER

INPUT LATCH

SYNC

SCLK

SDIN

CONTROL LOGIC AND

INPUT SHIFT REGISTER

03161-001

GND

Figure 1.

U.S. Patent No. 5,969,657.

Rev. D

Document Feedback

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

AD5425

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Characteristics ..................................................................... 5

Absolute Maximum Ratings ............................................................ 6

ESD Caution .................................................................................. 6

Pin Configuration and Function Descriptions ............................. 7

Typical Performance Characteristics ............................................. 8

Terminology .................................................................................... 13

Theory of Operation ...................................................................... 14

Data Sheet

Circuit Operation ....................................................................... 14

Single-Supply Applications ....................................................... 15

Adding Gain ................................................................................ 16

DACs Used as a Divider or Programmable Gain Element ... 16

Reference Selection .................................................................... 16

Amplifier Selection .................................................................... 17

Serial Interface ............................................................................ 19

Microprocessor Interfacing ....................................................... 19

PCB Layout and Power Supply Decoupling................................ 22

Outline Dimensions ....................................................................... 23

Ordering Guide .......................................................................... 23

REVISION HISTORY

1/16—Rev. C to Rev. D

Deleted Positive Output Voltage Section ........................................ 16

Changes to Adding Gain Section .................................................... 16

Changes to ADSP-21xx to AD5425 Interface Section

and Figure 39 .................................................................................... 19

Changes to ADSP-BF504 to ADSP-BF592 Device Family to

AD5425 Interface Section, MC68HC11 Interface to AD5425

Interface Section, and Figure 40 and Figure 41 Captions ......... 20

Changes to PIC16C6x/PIC16C7x to AD5425 Section .............. 21

9/12—Rev. B to Rev. C

Change to Features ........................................................................... 1

6/12—Rev. A to Rev. B

Deleted ADSP-2103 and changed ADSP-2191 to

ADSP-2191M Throughout ............................................................ 19

Deleted Evaluation Board Section and Operating the Evaluation

Board Section, deleted Figure 46 to Figure 49, and deleted

Table 11 ............................................................................................ 23

Changes to Ordering Guide .......................................................... 23

3/05—Rev. 0 to Rev. A

Updated Format .................................................................. Universal

Changes to Specifications Section ...................................................3

Added Figure 18, Figure 20, Figure 21 ........................................ 10

Change to Table 7 ........................................................................... 18

2/04—Revision 0: Initial Version

Rev. D | Page 2 of 24

AD5425 Related Products

	AD5425	EVAL-AD5425EBZ
Description	SERIAL INPUT LOADING, 0.09 us SETTLING TIME, 8-BIT DAC, PDSO10	EVAL BOARD FOR AD5425

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