AD5551BR Datasheet AD5551BRZ-REEL7, AD5551BRZ, AD5552BRZ | P1-P3

2.7 V to 5.5 V, Serial-Input,

Voltage-Output, 14-Bit DACs

AD5551/AD5552

Rev. A

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FEATURES

Full 14-bit performance

3 V and 5 V single supply operation

Low 0.625 mW power dissipation

1 μs settling time

Unbuffered voltage output capable of driving 60 kΩ

loads directly

SPI/QSPI/MICROWIRE-compatible interface standards

Power-on reset clears DAC output to 0 V (unipolar mode)

5 kV HBM ESD classification

APPLICATIONS

Digital gain and offset adjustment

Automatic test equipment

Data acquisition systems

Industrial process control

GENERAL DESCRIPTION

The AD5551/AD5552 are single, 14-bit, serial-input, voltage-

output DACs that operate from a single 2.7 V to 5.5 V supply.

The DAC output range extends from 0 V to V

REF

These DACs provide 14-bit performance without any adjust-

ments. The DAC output is unbuffered, which reduces power

consumption and offset errors contributed by an output buffer.

With an external op amp, the AD5552 can be operated in

bipolar mode generating a ±V

REF

output swing. The AD5552

also includes Kelvin sense connections for the reference and

analog ground pins to reduce layout sensitivity. For higher

precision applications, refer to 16-bit DACs AD5541, AD5542,

and AD5544.

The AD5551/AD5552 utilize a versatile 3-wire interface that is

compatible with SPI, QSPI™, MICROWIRE™, and DSP interface

standards. The AD5551 and AD5552 are available in 8-lead and

14-lead SOIC packages.

FUNCTIONAL BLOCK DIAGRAMS

14-BIT DAC

14-BIT DATA LATCH

SERIAL INPUT REGISITER

DGND

DIN

REF

CLK

OUT

AGND

AD5551

CONTROL

LOGIC

01943-001

Figure 1.

14-BIT DATA LATCH

SERIAL INPUT REGISITER

DGND

LDAC

SCLK

DIN

REFS

REFF

OUT

RFB

INV

AD5552

AGNDF

AGNDS

14-BIT DAC

INV

CONTROL

LOGIC

01943-002

Figure 2.

PRODUCT HIGHLIGHTS

1. Single Supply Operation.

The AD5551 and AD5552 are fully specified and

guaranteed for a single 2.7 V to 5.5 V supply.

2. Low Power Consumption.

Typically 0.625 mW with a 5 V supply.

3. 3-Wire Serial Interface.

4. Unbuffered output capable of driving 60 k loads, which

reduces power consumption as there is no internal buffer

to drive.

5. Power-On Reset Circuitry.

AD5551/AD5552

Rev. A | Page 2 of 16

TABLE OF CONTENTS

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

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

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

Functional Block Diagrams ............................................................. 1

Product Highlights ........................................................................... 1

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

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

Timing Characteristics ................................................................ 4

Absolute Maximum Ratings ............................................................ 5

ESD Caution .................................................................................. 5

Pin Configurations and Function Descriptions ........................... 6

Typical Performance Characteristics ............................................. 7

Terminology .................................................................................... 10

Theory of Operation ...................................................................... 11

Digital-to-Analog Section ......................................................... 11

Serial Interface ............................................................................ 11

Unipolar Output Operation ...................................................... 11

Bipolar Output Operation ......................................................... 12

Output Amplifier Selection ....................................................... 12

Force Sense Buffer Amplifier Selection ................................... 12

Reference and Ground ............................................................... 13

Power-On Reset .......................................................................... 13

Power Supply and Reference Bypassing .................................. 13

Microprocessor Interfacing ........................................................... 14

ADSP-21xx to AD5551/AD5552 Interface ............................. 14

68HC11 to AD5551/AD5552 Interface ................................... 14

MICROWIRE to AD5551/AD5552 Interface ........................ 14

80C51/80L51 to AD5551/AD5552 Interface .......................... 14

Applications Information .............................................................. 15

Optocoupler Interface ................................................................ 15

Decoding Multiple AD5551/AD5552s .................................... 15

Outline Dimensions ....................................................................... 16

Ordering Guide .......................................................................... 16

REVISION HISTORY

5/10—Rev. 0 to Rev. A

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

Changes to Data Sheet Title, Features Section, General

Description Section, and Product Highlights Section ................. 1

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

Changes to Table 3 ............................................................................ 5

Changes to Pin V

Description in Table 4 and Table 5 ............. 6

Changes to Typical Performance Characteristics Section ........... 7

Changes to First Paragraph in Theory of Operation Section ... 11

Updated Outline Dimensions ....................................................... 16

Changes to Ordering Guide .......................................................... 16

7/00—Revision 0: Initial Version

AD5551/AD5552

Rev. A | Page 3 of 16

SPECIFICATIONS

= 2.7 V to 5.5 V, 2.5 V ≤ V

REF

≤ V

, AGND = DGND = 0 V. All specifications T

= T

MIN

to T

MAX

, unless otherwise noted.

Table 1.

Parameter

Min Typ Max Unit Test Condition

STATIC PERFORMANCE

Resolution 14 Bits

Relative Accuracy, INL ±0.15 ±1.0 LSB B grade

Differential Nonlinearity ±0.15 ±0.8 LSB Guaranteed monotonic

Gain Error −1.5 −0.3 +0.5 LSB

Gain Error Temperature Coefficient ±0.1 ppm/°C

Zero-Code Error 0.1 ±1 LSB

Zero-Code Temperature Coefficient ±0.05 ppm/°C

AD5552

Bipolar Resistor Matching 1.000 Ω/Ω RFB/RINV, typically RFB = RINV = 28 kΩ

±0.0015 ±0.0152 % Ratio error

Bipolar Zero Offset Error ±0.25 ±1 LSB

Bipolar Zero Temperature Coefficient ±0.2 ppm/°C

Bipolar Zero-Code Error −0.3 ±1.2 LSB

Bipolar Gain Error −0.3 ±1.2 LSB

OUTPUT CHARACTERISTICS

Output Voltage Range 0 V

REF

− 1 LSB V Unipolar operation

−V

REF

− 1 LSB V AD5552 bipolar operation

Output Voltage Settling Time 1 μs To ½ LSB of FS, C

= 10 pF

Slew Rate 17 V/μs C

= 10 pF, measured from 0% to 63%

Digital-to-Analog Glitch Impulse 1.1 nV-sec 1 LSB change around the major carry

Digital Feedthrough 0.2 nV-sec All 1s loaded to DAC, V

REF

= 2.5 V

DAC Output Impedance 6.25 kΩ Tolerance typically 20%

Power Supply Rejection Ratio ±1.0 LSB ΔV

± 10%

DAC REFERENCE INPUT

Reference Input Range 2.0 V

Reference Input Resistance

9 kΩ Unipolar operation

7.5 kΩ AD5552, bipolar operation

LOGIC INPUTS

Input Current ±1 μA

INL

, Input Low Voltage 0.8 V

INH

, Input High Voltage 2.4 V

Input Capacitance

10 pF

Hysteresis Voltage

0.15 V

REFERENCE

Reference −3 dB Bandwidth 2.2 MHz All 1s loaded

Reference Feedthrough 1 mV p-p All 0s loaded, V

REF

= 1 V p-p at 100 kHz

Signal-to-Noise Ratio 92 dB

Reference Input Capacitance 26 pF Code 0000

26 pF Code 3FFF

POWER REQUIREMENTS Digital inputs at rails

2.7 5.5 V

125 150

μA

Power Dissipation 0.625 0.825 mW

Temperature range is as follows: B version: −40°C to +85°C;

Guaranteed by design, not subject to production test.

Reference input resistance is code-dependent, minimum at 2555

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P16

AD5551BR

Mfr. #:

Buy AD5551BR

Manufacturer:

Analog Devices Inc.

Description:

Digital to Analog Converters - DAC 14-Bit VTG Out IC

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AD5551BR

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