DAC8143FPZ Analog Devices Inc, DAC8143FPZ Datasheet

DAC8143FPZ

Manufacturer Part Number

DAC8143FPZ

Description

12-BIT SERIAL INPUT DAC

Manufacturer

Analog Devices Inc

Datasheet

1.DAC8143FSZ.pdf (12 pages)

Specifications of DAC8143FPZ

Settling Time

380ns

Number Of Bits

Data Interface

Serial

Number Of Converters

Voltage Supply Source

Single Supply

Power Dissipation (max)

500µW

Operating Temperature

-40°C ~ 85°C

Mounting Type

Through Hole

Package / Case

16-DIP (0.300", 7.62mm)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

DAC8143FPZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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REV. C

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

GENERAL INFORMATION

The DAC8143 is a 12-bit serial-input daisy-chain CMOS D/A

converter that features serial data input and buffered serial data

output. It was designed for multiple serial DAC systems, where

serially daisy-chaining one DAC after another is greatly simplified.

The DAC8143 also minimizes address decoding lines enabling

simpler logic interfacing. It allows three-wire interface for any

number of DACs: one data line, one CLK line and one load line.

Serial data in the input register (MSB first) is sequentially

clocked out to the SRO pin as the new data word (MSB first) is

simultaneously clocked in from the SRI pin. The strobe inputs

are used to clock in/out data on the rising or falling (user

selected) strobe edges (STB

When the shift register’s data has been updated, the new data

word is transferred to the DAC register with use of LD1 and

LD2 inputs.

Separate LOAD control inputs allow simultaneous output up-

dating of multiple DACs. An asynchronous CLEAR input

resets the DAC register without altering data in the input

Improved linearity and gain error performance permits reduced

circuit parts count through the elimination of trimming compo-

nents. Fast interface timing reduces timing design considerations

while minimizing microprocessor wait states.

The DAC8143 is available in plastic packages that are compat-

ible with autoinsertion equipment.

Plastic packaged devices come in the extended industrial tem-

perature range of –40 C to +85 C.

FEATURES

Fast, Flexible, Microprocessor Interfacing in Serially

Buffered Digital Output Pin for Daisy-Chaining

Minimizes Address-Decoding in Multiple DAC

Improved Resistance to ESD

–40 C to +85 C for the Extended Industrial Temperature

APPLICATIONS

Multiple-Channel Data Acquisition Systems

Process Control and Industrial Automation

Test Equipment

Remote Microprocessor-Controlled Systems

Controlled Systems

Multiple DACs

Systems—Three-Wire Interface for Any Number of DACs

Range

One Data Line

One CLK Line

One Load Line

, STB

, STB3, STB

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

Tel: 781/329-4700

Fax: 781/326-8703

Figure 1. Multiple DAC8143s with Three-Wire Interface

STB

CLR

REF

SRI

DAC8143

12-Bit Serial Daisy-Chain

FUNCTIONAL BLOCK DIAGRAM

CMOS D/A Converter

World Wide Web Site: http://www.analog.com

DGND

ADDRESS BUS

ADDRESS

DECODER

LOAD

CLK

D/A CONVERTER

SHIFT REGISTER

DAC REGISTER

INPUT 12-BIT

12-BIT

DAC8143

SRI

SRO

SRI

SRO

SRI

SRO

SRI

SRO

OUT

STROBE

LOAD

DAC8143

AGND

SRO

OUT1

OUT2

Related parts for DAC8143FPZ

DAC8143FPZ Summary of contents

Page 1

FEATURES Fast, Flexible, Microprocessor Interfacing in Serially Controlled Systems Buffered Digital Output Pin for Daisy-Chaining Multiple DACs Minimizes Address-Decoding in Multiple DAC Systems—Three-Wire Interface for Any Number of DACs One Data Line One CLK Line One Load Line Improved ...

Page 2

DAC8143–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Symbol STATIC ACCURACY Resolution N Nonlinearity INL 1 Differential Nonlinearity DNL 2 Gain Error G 3 Gain Tempco ( Gain/ Temp) TC Power Supply Rejection Ratio ( Gain PSRR DD 4 Output Leakage Current ...

Page 3

ELECTRICAL CHARACTERISTICS Temperature Range specified under Absolute Maximum Ratings, unless otherwise noted.) Parameter 13 STB to SRO Propagation Delay SRI Data Pulsewidth 14 STB Pulsewidth (STB1 = 80 ns STB Pulsewidth (STB2 = 100 ns STB ...

Page 4

DAC8143 ABSOLUTE MAXIMUM RATINGS (T = +25 C, unless otherwise noted DGND . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

ALL BITS ON (MSB) B11 B10 DATA BITS "ON" B6 (ALL OTHER B5 DATA BITS "OFF" (LSB) B0 100 1k 10k FREQUENCY – Hz Figure 2. Multiplying Mode Frequency Response vs. Digital Code ...

Page 6

DAC8143 DEFINITION OF SPECIFICATIONS RESOLUTION The resolution of a DAC is the number of states (2 the full-scale range (FSR) is divided (or resolved), where “n” is equal to the number of bits. SETTLING TIME Time required for the analog ...

Page 7

ESD PROTECTION The DAC8143 digital inputs have been designed with ESD resistance incorporated through careful layout and the inclusion of input protection circuitry. Figure 11 shows the input protection diodes. High voltage static charges applied to the digital inputs are ...

Page 8

DAC8143 Where function of the digital code, and for more than four bits of Logic for any single bit of Logic 1. O Therefore, the offset ...

Page 9

DAC8143 Logic Inputs Input Register/ Digital Output Control Inputs STB3 STB STB STB ...

Page 10

DAC8143 In many applications, the DAC8143’s zero scale error and low gain error, permit the elimination of external trimming compo- nents without adverse effects on circuit performance. For applications requiring a tighter gain error than 0.024 for ...

Page 11

ADDRESS BUS ADDRESS WR DECODER Figure 19. Multiple DAC8143s with Three-Wire Interface ANALOG/DIGITAL DIVISION The transfer function for the DAC8143 connect in the multiply- ing mode as shown in Figures 16 and 17 is ...

Page 12

DAC8143 DAC8143 INTERFACE TO THE 8085 The DAC8143’s interface to the 8085 microprocessor is shown in Figure 22. Note that the microprocessor’s SOD line is used to present data serially to the DAC. Data is strobed into the DAC8143 by ...

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