precision DACs

8/2/2019 precision DACs

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The World Leader in High Performance Signal Processing Solutions

Precision Digital-to-AnalogConverters

SEA DFAE Training

Dec 2004


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Precision DACs10kSPS to 10 MSPS, with 8-Bits to 18-Bits Resolution

ADI #1 in DACs

Largest DAC Portfolio > 200 Products

Worlds Highest Accuracy DAC:up to 18-Bit 1 LSB INL

Worlds Smallest DAC: 2.7mm2

Packages: SC70, SOT-23,LFCSP, MSOP, BGA, QFP,TSSOP, SSOP,

Largest Signal ranges: up to15 V and Rail-to-Rail(0 V to 2.5-5.5 V)

ADI Precision DAC

Market Share

TI/Burr

Brown

7%

LinearTech

2%

Maxim

10%

Others

33% ADI

48%

Source: WSTS and ADI estimates, 2003 Data


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4

New Processes & Architectures

EP130: sub-micron CMOS + 30V bipolar + TFR

String DAC: exponentially fewer resistors in string

Higher Resolution at Lower Cost: Interpolating PDM Pulse Density Modulation

Sigma-DeltaGreater Accuracy at Lower Cost:

Precision (untrimmed) Thin Film Resistors

DigiTrim in-package trim; Digital Correction Engine

Memory: OTP TFR fuses, EEPROM

References on 0.25um to 0.6um CMOS with Curvaturecorrection, with Low headroom (subtracting dVbe) operationdown to 1V, embedded in o/p Buffer (zero space) provideslow noise (5uV)


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5

DAC Block Diagram

Interface /

Control

Reference

Amp AmpDAC

Features

Rail-to-Rail:1.8V/3.3V/5V

0.5V headroom:10V, 15V

1ppm/oC

1.8V/3.3V/5V

50MHz/17ns

Low noise

Low power

10MHz+

1-3-10us

1-10-100uA

Newoutputtypes

10MHz+

1-3-10us

1-10-100uA

Gain & Offset correction/calibration, POR, PD,

LDAC, CLR, Reset, Read-back, test


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New Output Types

High Current

Class D

High Current Class D

Sigma Delta

Filter-less Sigma-DeltaHigh Current Sigma-Delta

0/4 to 20mA

50-200V


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Common Features

Very Small: up to 70% smaller than existing parts

Low Voltage Interface: 1.8/3.3/5V

On-board Reference: 1-3-10ppm/oC

Fast: 50MHz SCLK, 17ns Write cycle

Wide bandwidth: 4Mhz, 10MHz+Large Signal range: +/-15V, Rail-to-Rail

Programmable Speed/Power: 1-3-10us

New Packages: SC70, LFCSP, LFBGA

Smart: POR, PD, LDAC, CLR, Reset, Read-back, testOn-chip Gain & Offset correction/calibration

Single-ended Reference input on Bipolar parts


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STRING DAC Architecture

Traditional String DAC requires2n Resistors

Main DAC and Sub-DAC leadsto 2N/2 + (2N/2 -1) Resistors

Size, Power, and CostReduction.

Guaranteed Monotonic

Voltage Output

Number of resistors in 8-bit

DAC: 31 vs 256


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DAC - Developing Cores for Key Markets

PRECISION DAC

ATEOpticalComms

ConsumerIndustrialInst &

MedicalComms

Key Target Market Segments

Hi Channel Cores

Low Voltage Single

Supply CoresBipolar CoresCurrent Out Cores


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Developing Cores for Key Markets

PRECISION DAC

ConsumerIndustrialInst &

MedicalComms


Low Power Single

Supply Cores

AD5641

Handheld, Portable Applications Battery powered, limited space Voltage level setting Devices typically not in main signal chain

nanoDACTM


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Low Power Voltage Level SettingExample: Base-station Gain/PA Control

+

-

Signal Input

Signal Output

RF Detector

Error Integrator

D/A Converter

Scaling

Vset

VGA

AD5641/21/11/01


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AD5641Worlds Smallest DACLow Voltage Single Supply Cores

KEY BENEFITS Minimum Board Area

14bits & 70% smaller than competition MSOP smallest competitive device

Low Power DAC

Max 100uA Supply current..best in class

Buffered output 2.7 to 5.5V supply

SC-70 Package

Resolution Output Channels INL, Max Interface Package

14 Bits 0-5V 1 4 LSB SPI 6 SC-70

Same as AD5641 except

8-,10-, & 12-Bit Resolution

AD5601, AD5611, AD5621

SC-70Analog - 100uA Max

Competition 550uA Max

Pow

er

A member of the nanoDACTM

family of small package, low power D/A converters

MSOP

nanoDACTM


12/3815 IDD Max

6-leadSOT-23

6-leadSC-70

8-leadMSOP

250A200A150A100A

Competitive Position (@14-Bits)

MAX5141-4

Unbuffered8-/10-MSOP

LTC1658

8-MSOP/SO550A

AD5641

6-SC-70100A Max 70% Reduction in Board Space

80% Reduction in Power

Linear Tech

Analog Devices

Maxim


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Low Voltage nanoDACTM Roadmap

In Design

In Definition

Released

Planned

1998 2004

812-Bit

14-Bit

16-Bit

AD53xx

AD5641

AD5621/11/01

Worlds First 14-Bit

DAC in SC70

Worlds First 12-BitDAC in SOT-23

Better

Accuracy

Higher resolution,

Greater integration

AD53xxAD53xx

Worlds First 8-, 10-, 12-Bit

DAC in SC70


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(2) Bipolar Cores

PRECISION DAC

IndustrialInst &

MedicalComms


Bipolar Cores

AD5570


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Industrial Application

Function: Open Loop Industrial Process Control

Application: Actuator Control

Solution: AD5570, 16-bit, +/-1 LSB INL, Bipolar Output DAC.

Target application is where customer needs single 16bit DAC with full accuracy -AD5570 ideal due to its accuracy, serial interface, bipolar output range, and smallpackage.

Process ControlActuator

VoltageControlOutput 16-BIT

VOUT

DAC

DigitalIsolation

uController

Interfaceto Host


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AD5570- Smallest 16-Bit full accurate DACBipolar Cores

KEY BENEFITS Full 16 Bit Accuracy

1 LSB INL and DNL

Ease of Application

On chip reference buffers

Bipolar output generated from single 5V Ref

Output control during power on/off Output clamped to 0V during power on/off


16 Bits 10V 1 1 LSB SPI 16-SSOP

AD5530 & AD5531 Similar to AD5570 but

12 and 14 Bits respectively

VOUT

VDD DGND

AD5571

REFIN

REFGND

LDAC

SDIN CLRSCLK SYNC

PD

DAC REGISTER

SHIFT REGISTERPOWER-DOWN

CONTROL LOGIC

POWER ON

RESET

SDO

VSS

+

-

16 - BIT DAC

R

+

-

AGND

AGNDS

+

-

REFOUT

R

R

R

-

+

2*RDAC2*RDAC

AD5570


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AD5570 - Competitive Analysis/Positioning16Bit Bipolar, 1 LSB INL

4

8

24 SSOP16 SSOP

INL

(lsb Max)

Package

1

36 SSOP

AD5570

1 LSB INL -up to 125C

Smaller Package

Analog DevicesDAC7731 (Dec 01)

3 LSB INL up to 85CInternal Ref

TI/BB

LTC1821 (Dec 00)1 LSB INL up to 85CParallel Int

LTC

AD78498 LSB INL20 SOP

Analog Devices


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AD5764- Smallest 16-Bit full accuracy Quad DACBipolar Cores

KEY BENEFITS Small: 32 lead TQFP

Full 16 Bit Accuracy

1 LSB INL and DNL

Ease of Application

On chip reference buffers

Bipolar output generated from single 5V Ref

Output control during power on/off

Output clamped to 0V during power on/offResolution Output Channels INL, Max Interface Package

16 Bits 14.5V 4 1 LSB SPI 32-TQFP

AD5744 Similar to AD5764 but

14 bits

INPUT

REG C

M REG C

C REG C

DAC

REG C

16DAC C

INPUT

REG D

M REG D

REFERENCE

BUFFERS

C REG D

DAC

REG D

16DAC D

G1

G2

INPUT

REG B

M REG B

C REG B

DAC

REG B

16DAC B

INPUT

REG A

M REG A

C REG A

DAC

REG A

1616DAC A

LDAC VREF CD TEMP

RSTINRSTOUTVREF ABREFGND

AGNDD

VOUTD

AGNDC

VOUTC

AGNDB

VOUTB

AGNDA

VOUTA

ISCC

TEMP

SENSOR

REFERENCE

BUFFERS

AVSS

SDIN

SCLK

SYNC

SDO

D0

D1

BIN/2SCOMP

CLR

AVDDAVSSAVDDPGND

DVCC

DGND

+5V

REFERENCE

VOLTAGE

MONITOR

AND

CONTROL

INPUT SHIFT

REGISTER

AND

CONTROL

LOGIC

G1

G2

G1

G2

G1

G2

04641-PrA-001

REFOUT


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Industrial Application

Function: Open Loop Industrial Process ControlApplication: Actuator Control

Solution: AD5764, 16-bit, +/-1 LSB INL, Quad Bipolar Output DAC.

Target application is where customer needs 16bit DAC with full accuracy - AD5764ideal due to its accuracy, serial interface, bipolar output range, and small package.

Process ControlActuator

VoltageControlOutput 16-BIT

VOUTDAC

Digital

Isolation

uController

Interfaceto Host


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Competitive Comparison

160mm

80mm

1

2

3

INL

[lsb]

48 SSOP

32 TQFP

-

-

-

60 80 100 120 140 160 180mm

| | || | | |

50% reduction in package size

3x more Accurate


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8/10/12-Bit

16-Bit

Bipolar DAC RoadmapBipolar Cores

16 Bit DAC, 1LSB INL

AD78xx

AD7849BAD7846

AD5570

+/-15V, 16/14-bit Quad,

AD724414-Bit

AD5764

AD5744

In Design

In Definition

Released

Planned

AD5531

AD5582/3

AD7398/9


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(3) Current Out Cores

PRECISION DAC

OpticalComms

IndustrialInst &

MedicalComms


Current Out Cores

AD5453


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Automotive (chirped) Radar System

uPDSP

ADSP2189 CAN

AD7276

AD5443

RF

Front End

AD8054

AD8054

DAC provides a ramp voltage which controls the VCO frequencywhich sweeps through 256 points. DAC is updated every 20uS.DAC was chosen because of its small size, low power and lowcost, 105C operation and a lead free package are also required.


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AD5453High BW 10MHz, 14-bit Iout DACCurrent Out Cores

KEY BENEFITS High Accuracy: 0.5LSB @ 12 bits

Small: SOT23 package

Very fast throughput

>10MHz 4Q Multiplying Bandwidth

50MHz SPI Interface

Supports Low voltage designs

10V Reference with single 2.5V to 5.5V supply

Extended temperature range: -40oC to +125oC


14 bits Current 1 2 LSB SPI 8-SOT23

AD5450, AD5451, AD5452 AD5424, AD5433, AD5445 AD5405 & AD5415

Same as AD5453 except

8, 10, 12 bit Resolution

Similar to AD5453 except

8, 10, 12 bit Resolution

High Speed Parallel Interface

20 TSSOP / 4x4 LFCSP

Dual 12bit Parallel & Serial

Additional resistor functionalitypinned out


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In DesignReleased

2004

8/1

0/12-Bit

14/16-Bit

Current Out DAC RoadmapCurrent Out Cores

14/16 Current Out DAC

Single, Dual, Quad

2003

AD5405AD5415

Single- SPI int

AD5453 &

family

AD75xx

AD79xx

AD5546AD5556

AD5424AD5433AD5445

Single -Parallel Int

Uncommitted Rs

Par & SPI int

Existing

AD5543AD5553 AD5545

AD5555

AD5544AD5554

14/16 Current Out DAC

Single, Parallel Interface

AD5429AD5439AD5449

AD5428AD5440AD5447 Dual- SPI int

Dual -Parallel Int

AD5425/6

AD5432AD5443

AD5453 &

family

SOT-23


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(4) High Channel Cores

PRECISION DAC

ATEOpticalComms

Industrial &Instrumentation


Hi Channel Cores

AD5379AD5380/90AD5535

AD5379AD5380/90


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Optical CommunicationsVoltage Control of AttenuatorsAD5382

Function: Variable Optical AttenuatorApplication: Optical Add-Drop Mux

Solution: AD5382 32-channel, 14-Bit DAC

High level of integration, single supply operation, monotonicity and on-chipreference are the main reasons for selecting AD5382


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AD538040-Channel 14-Bit 3V/5V DACHi Channel Cores

KEY BENEFITS High Integration

40 DAC Channels in 14mm x 14mm 100-LQFP

On-Chip 2.5V/1.25V 10ppm/C Reference

High Performance INL = 4 LSB max

Flexibility User-programmable Offset and Gain registers

SPI/I2C and Parallel Interfaces with on-chip FIFOfor fast writes

Monitor and Toggle modes

Boost mode for faster slew rate

Resolution Output Channels Max INL Interface Package14 Bits 0-5V max 40 4 LSB

SPI/I2C/Parallel

100-LQFP

Related product AD5381 Same as AD5380 but

12 Bit Resolution

AD5382 Same as AD5380 but

32 Channel


12 Bit Resolution

32 Channel


Serial only

10x10 100-CSPBGA


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Wireless CommunicationsPower Amplifier controlAD5391

Function: Set-Point ControlApplication:Base-station Multi-stage Power Amplifier Control

Solution: AD5391 16-channel, 12-Bit DAC

AD5391 chosen due to its single supply operation, small size, andchannel density

DACs used to ControlBias Point ControlAverage Power Control (APC)Peak Power Control (PPC)

Transmit Gain Control (TGC)Audio Level Control (ALC)Variable Voltage AttenuatorsPhase ShiftersDC Set-point Controls


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AD539016-Channel 14-Bit 3V/5V DACHi Channel Cores

KEY BENEFITS High Integration

16 DAC Channels in 9mm x 9mm 64-CSPBGA

On-Chip 2.5V/1.25V 10ppm/C Reference

High Performance INL = 4 LSB max

Flexibility User-programmable Offset and Gain registers

SPI/I2C Interfaces

Monitor and Toggle modes

Boost mode for faster slew rate

Resolution Output Channels Max INL Interface Package

14 Bits 0-5V max 16 4 LSB SPI/I2C64-CSPBGA52-LQFP


12 Bit Resolution


8 Channels


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Competitive Analysis/PositioningHi Channel Cores

12

14

3216

MonotonicResolution(Bits)

Channels

40

MAX5621/2/3 - 32 Ch 16bit SHA- 14 bit Monotonic

AD5532: 14Bit, 32 ChannelBipolar DAC

AD5379: First 14Bit, 40ChannelBipolar DAC

ADI - Bipolar

ADI - Unipolar

Maxim - Bipolar

AD5380: First 14Bit, 40 ChannelUnipolar DAC, Int Ref

AD5391: 12Bit, 16 ChannelUnipolar DAC, Int Ref




AD5382: 14Bit,32 Channel

Unipolar DAC

AD5516: 12Bit, 16 ChannelBipolar DAC


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In DesignReleased

2002 2004

12-Bit

14-Bit

16-Bit

Multi-channel DAC RoadmapHi Channel Cores

Worlds First 32-ch DAC

40-ch Bipolar DAC

Calibrated String Architecture

AD5516

2003

AD5380/1/2/3/4

AD5390/1/2

AD5379

40-/32-/16-/8-ch 3V/5V DACCalibrated String Architecture

AD5535

32-ch 50V/200V

DAC

AD5532


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Product Availability StatusLow Voltage Single Supply Cores

Part Number Description Samples Release 1K Price

AD5348* 12-Bit Octal DAC, Parallel Interface, 38 TSSOP Reld Reld $8.41

AD5339* Dual 12-Bit DAC, I2C Interface, 8-MSOP Reld Reld $3.20

AD5641 Single 14-Bit DAC in SC-70 Now 2Q05 $2.95




AD5662 Single 16-Bit DAC in SOT-23 Now 2Q05 $2.83

*Note: Also available in 8 & 10 Bit options

*Note: Lowest grade pricing provided


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Product Availability StatusBipolar Cores


AD5531 Single 14-Bit DAC, 2 LSB INL in 16 SSOP Reld Reld $6.95

AD5530 Single 12-Bit DAC, 1 LSB INL in 16 SSOP Reld Reld $4.25

AD5570 Single 16-Bit, 1 LSB INL in 16 ld SSOP Reld Reld $14.93



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Product Availability StatusCurrent Out Cores


AD5425 Single 8 Bit, SPI with 8 Bit Load, 10 ld MSOP Reld Reld $1.62

AD5426/32/43 Single 8/10/12Bit, SPI, 10 ld MSOP Reld Reld $1.80

AD5450/1/2/3 Single 8/10/12/14Bit, SPI, 8-SOT-23, Low TUE Now Reld $1.97

AD5424/33/45 Single 8, 10, 12bit parallel, 16/20-TSSOP Reld Reld $1.98

AD5429/39/49 Dual 8, 10, 12Bit, SPI, 16-TSSOP Now Reld $2.72

AD5428/40/47 Dual 8, 10, 12Bit Parallel, 20 TSSOP Now Reld $2.99

AD5405 Dual 12Bit, Parallel, 40 LFCSP Now Reld $6.27

AD5415 Dual 12Bit, SPI, 24 TSSOP Now Reld $5.76

AD5444/46 Single 12, 14bit, SPI, 1 & 2 LSB INL, 10ld MSOP Now Reld $3.90

AD5543/53 Single 16, 14Bit, SPI, 8-MSOP Reld Reld $6.50

*Note: Lowest resolution/grade pricing provided


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Product Availability StatusCurrent Out Cores


AD5546/56 Single 16, 14Bit, Par, 28-TSSOP (16bit reld) Now Reld $4.99

AD5545/55 Dual 16, 14Bit, SPI, 16-TSSOP Reld Reld $8.50

AD5547/57 Dual 16, 14Bit, Parallel, 38-TSSOP Reld Reld $9.78

*Note: Lowest resolution/grade pricing provided


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Product Availability StatusHi Channel Cores


AD5379 40-Channel 14-Bit Bipolar Serial/Parallel DAC NOW Reld $67.75

AD5380 40-Channel 14-Bit 3V/5V Serial/Parallel DAC NOW Reld $49.50

AD5384 40-Channel 14-Bit 3V/5V Serial DAC NOW Reld $49.50







AD5535 32-Channel 14-Bit 200V Serial DAC NOW TBD $135



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DAC Contacts

Bipolar and

Current Out

Low Voltage ATE/Optical

and Hi Channel

DDS

Marketing Mel Conway James Caffrey Helen Stapleton James Caffrey

Pricing Fiona Gibbons Fiona Gibbons Fiona Gibbons Fiona Gibbons

Samples Rita Minihan Rita Minihan Rose Archbold Rita Minihan

Contracts Margie Flood Margie Flood Margie Flood Margie Flood

Applications Albert O GradyEva Murphy, ColmSlattery, TheresaCorrigan, Maurice

Egan

Albert O GradyEva Murphy, ColmSlattery, TheresaCorrigan, Maurice

Egan

Albert O Grady Eva Murphy

Colm Slattery

Documents

precision DACs