AD5555CRU Analog Devices Inc, AD5555CRU Datasheet

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AD5555CRU

Manufacturer Part Number
AD5555CRU
Description
IC DAC 14BIT DUAL SRL IN 16TSSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5555CRU

Rohs Status
RoHS non-compliant
Settling Time
500ns
Number Of Bits
14
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Power Dissipation (max)
55µW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP

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FEATURES
16-bit resolution AD5545
14-bit resolution AD5555
±1 LSB DNL monotonic
±1 LSB INL
2 mA full-scale current ±20%, with V
0.5 μs settling time
2Q multiplying reference-input 6.9 MHz BW
Zero or midscale power-up preset
Zero or midscale dynamic reset
3-wire interface
Compact TSSOP-16 package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Industrial control PLCs
Programmable attenuator
PRODUCT OVERVIEW
The AD5545/AD5555 are 16-bit/14-bit, current-output, digital-
to-analog converters designed to operate from a single 5 V
supply with bipolar output up to ±15 V capability.
An external reference is needed to establish the full-scale
output-current. An internal feedback resistor (R
the resistance and temperature tracking when combined
with an external op amp to complete the I-to-V conversion.
A serial data interface offers high speed, 3-wire microcontroller
compatible inputs using serial data in (SDI), clock (CLK), and
chip select ( CS ). Additional LDAC function allows
simultaneous update operation. The internal reset logic allows
power-on preset and dynamic reset at either zero or midscale,
depending on the state of the MSB pin.
The AD5545/AD5555 are packaged in the compact TSSOP-16
package and can be operated from –40°C to +85°C.
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 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.
REF
= 10 V
FB
) enhances
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
CLK
V
SDI
CS
DD
Serial-Input, 16-/14-Bit DACs
EN
DGND
DECODE
D0..DX
ADDR
DAC A
B
FUNCTIONAL BLOCK DIAGRAM
16 OR 14
Dual, Current-Output,
©2003–2011 Analog Devices, Inc. All rights reserved.
POWER-
REGISTER
REGISTER
RS
RESET
INPUT
INPUT
ON
MSB
Figure 1.
R
R
AD5545/AD5555
LDAC
REGISTER
REGISTER
DAC A
DAC B
R
R
V
REF
www.analog.com
A
AD5545/
DAC A
DAC B
AD5555
V
REF
B
02918-0- 001
R
I
A
R
I
A
OUT
OUT
FB
GND
FB
GND
A
B
A
B
A
B

Related parts for AD5555CRU

AD5555CRU Summary of contents

Page 1

FEATURES 16-bit resolution AD5545 14-bit resolution AD5555 ±1 LSB DNL monotonic ±1 LSB INL 2 mA full-scale current ±20%, with V REF 0.5 μs settling time 2Q multiplying reference-input 6.9 MHz BW Zero or midscale power-up preset Zero or midscale ...

Page 2

AD5545/AD5555 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Product Overview............................................................................. 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Timing Diagrams.......................................................................... 4 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Functional ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS ± 10 virtual GND, GND = OUT Table 1. Parameter 1 STATIC PERFORMANCE Resolution Relative Accuracy Differential Nonlinearity Output Leakage Current Full-Scale Gain Error 2 Full-Scale Temperature ...

Page 4

AD5545/AD5555 Parameter AC CHARACTERISTICS Output Voltage Setting Time Reference Multiplying BW DAC Glitch Impulse Feedthrough Error Digital Feedthrough Total Harmonic Distortion Analog Crosstalk Output Spot Noise Voltage 1 All static performance tests (except I ) are performed in a closed-loop ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating V to GND –0 GND – +18 V REF Logic Inputs to GND –0 V GND –0.3 V ...

Page 6

AD5545/AD5555 PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic REF OUT GND GND OUT 7 V ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 8192 16384 24576 32768 40960 49152 57344 65536 CODE (Decimal) Figure 5. AD5545 Integral Nonlinearity Error 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 ...

Page 8

AD5545/AD5555 3.0 2.5 2.0 1.5 1.0 0.5 0 10k 100k 1M CLOCK FREQUENCY (Hz) Figure 11. Supply Current vs. Clock Frequency 100 1k 10k FREQUENCY (Hz) Figure 12. Power ...

Page 9

THEORY OF OPERATION The AD5545/AD5555 contain a 16-/14-bit, current-output, digital-to-analog converter, a serial-input register, and a DAC register. Both parts require a minimum of a 3-wire serial data interface with an additional LDAC for dual channel simultaneous update. DIGITAL-TO-ANALOG CONVERTER ...

Page 10

AD5545/AD5555 SERIAL DATA INTERFACE The AD5545/AD5555 use a minimum 3-wire ( CS , SDI, CLK) serial data interface for single channel update operation. With Table example (AD5545), users can tie LDAC low and RS high, then pull ...

Page 11

Table 7. AD5545 Control Logic Truth Table CS LDAC RS CLK MSB ↑ ↑ ...

Page 12

AD5545/AD5555 APPLICATIONS INFORMATION STABILITY REF REF OUT GND AD5545/AD5555 Figure 20. Operational Compensation Capacitor for Gain Peaking Prevention In the I-to-V configuration, the I of the DAC and the ...

Page 13

PROGRAMMABLE CURRENT SOURCE Figure 23 shows a versatile V-to-I conversion circuit using improved Howland Current Pump. In addition to the precision current conversion it provides, this circuit enables a bidirec- tional current flow and high voltage compliance. This circuit can ...

Page 14

AD5545/AD5555 DAC WITH PROGRAMMABLE INPUT REFERENCE RANGE Because high voltage references can be costly, users may consider using one of the DACs, a digital potentiometer, and a low voltage reference to form a single-channel DAC with a programmable input reference ...

Page 15

REFERENCE SELECTION When selecting a reference for use with the AD55xx series of current output DACs, pay attention to the output voltage, temperature coefficient specification of the reference. Choosing a precision reference with a low output temperature coefficient minimizes error ...

Page 16

AD5545/AD5555 Table 11. Suitable Analog Devices Precision Op Amps V OS Part No. Supply Voltage (V) (μV) OP97 ±2 to ±20 25 OP1177 ±2.5 to ±15 60 AD8675 ±5 to ±18 75 AD8671 ±5 to ±15 75 ADA4004-1 ±5 to ...

Page 17

... AD5545CRUZ ±1 ±1 AD5545CRUZ-REEL7 ±1 ±1 AD5555CRU ±1 ±1 AD5555CRU-REEL7 ±1 ±1 AD5555CRUZ ±1 ±1 AD5555CRUZ-REEL7 ±1 ±1 1 The AD5545/AD5555 contain 3131 transistors. The die size measures 71 mil. × 96 mil., 6816 sq. mil RoHS Compliant Part. 5.10 5.00 4. 4.50 6.40 4.40 BSC 4 ...

Page 18

AD5545/AD5555 NOTES Rev Page ...

Page 19

NOTES Rev Page AD5545/AD5555 ...

Page 20

AD5545/AD5555 NOTES ©2003–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02918-0-3/11(C) Rev Page ...

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