AD5452 Analog Devices, AD5452 Datasheet

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AD5452

Manufacturer Part Number
AD5452
Description
12-Bit High Bandwidth Multiplying DACs with Serial Interface
Manufacturer
Analog Devices
Datasheet

Specifications of AD5452

Resolution (bits)
12bit
Dac Update Rate
2.7MSPS
Dac Settling Time
160ns
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Current Out
Dac Input Format
Ser,SPI

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FEATURES
12 MHz multiplying bandwidth
INL of ±0.25 LSB @ 8-bit
8-lead TSOT and MSOP packages
2.5 V to 5.5 V supply operation
Pin-compatible 8-/10-/12-/14-bit current output DACs
±10 V reference input
50 MHz serial interface
2.7 MSPS update rate
Extended temperature range: –40°C to +125°C
4-quadrant multiplication
Power-on reset with brownout detect
<0.4 μA typical current consumption
Guaranteed monotonic
Qualified for automotive applications
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
GENERAL DESCRIPTION
The AD5450/AD5451/AD5452/AD5453
12-/14-bit current output digital-to-analog converters, respectively.
These devices operate from a 2.5 V to 5.5 V power supply, making
them suited to several applications, including battery-powered
applications.
As a result of manufacture on a CMOS submicron process,
these DACs offer excellent 4-quadrant multiplication
characteristics of up to 12 MHz.
These DACs utilize a double-buffered, 3-wire serial interface
that is compatible with SPI®, QSPI™, MICROWIRE™, and most
DSP interface standards. Upon power-up, the internal shift
register and latches are filled with 0s, and the DAC output is at
zero scale.
Rev. E
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.
1
are CMOS 8-/10-/
Multiplying DACs with Serial Interface
8-/10-/12-/14-Bit High Bandwidth
AD5450/AD5451/AD5452/AD5453
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The applied external reference input voltage (V
the full-scale output current. These parts can handle ±10 V
inputs on the reference, despite operating from a single-supply
power supply of 2.5 V to 5.5 V. An integrated feedback resistor
(R
output when combined with an external current-to-voltage
precision amplifier.
The AD5450/AD5451/AD5452/AD5453 DACs are available in
small 8-lead TSOT, and the AD5452/AD5453 are also available
in MSOP packages. The AD5453 also comes in 8-lead LFCSP.
1
U.S. Patent Number 5,689,257.
FB
) provides temperature tracking and full-scale voltage
SYNC
SCLK
SDIN
FUNCTIONAL BLOCK DIAGRAM
AD5450/
AD5451/
AD5452/
AD5453
POWER-ON
©2005–2011 Analog Devices, Inc. All rights reserved.
RESET
V
DD
8-/10-/12-/14-BIT REF
Figure 1.
AND INPUT SHIFT
CONTROL LOGIC
V
GND
DAC REGISTER
REF
INPUT LATCH
REGISTER
R-2R DAC
R
REF
www.analog.com
) determines
R
I
OUT
FB
1

Related parts for AD5452

AD5452 Summary of contents

Page 1

... FB output when combined with an external current-to-voltage precision amplifier. The AD5450/AD5451/AD5452/AD5453 DACs are available in small 8-lead TSOT, and the AD5452/AD5453 are also available in MSOP packages. The AD5453 also comes in 8-lead LFCSP. 1 U.S. Patent Number 5,689,257. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...

Page 2

... AD5450/AD5451/AD5452/AD5453 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function Descriptions ........................... 7 Typical Performance Characteristics ............................................. 8 Terminology .................................................................................... 15 General Description ....................................................................... 16 DAC Section................................................................................ 16 REVISION HISTORY 3/11—Rev Rev. E Changes to SYNC Function Section ............................................ 21 Added Figure 54 (Renumbered Sequentially) ...

Page 3

... − 0 0.4 V 0.4 V ±1 nA ± Rev Page AD5450/AD5451/AD5452/AD5453 unless otherwise MIN MAX Conditions Guaranteed monotonic Guaranteed monotonic Guaranteed monotonic Guaranteed monotonic Data = 0x0000 25° OUT Data = 0x0000 −40°C to +125° Input resistance −50 ppm/°C Input resistance − ...

Page 4

... AD5450/AD5451/AD5452/AD5453 Parameter 1 DYNAMIC PERFORMANCE Reference-Multiplying BW Multiplying Feedthrough Error Output Voltage Settling Time Measured to ± Measured to ± Measured to ± Digital Delay 10% to 90% Settling Time Digital-to-Analog Glitch Impulse Output Capacitance I 1 OUT I 2 OUT Digital Feedthrough Analog THD Digital THD ...

Page 5

... Minimum SYNC high time MSPS Consists of cycle time, SYNC high time, data setup, and output voltage settling time DB0 Figure 2. Timing Diagram Rev Page AD5450/AD5451/AD5452/AD5453 + unless otherwise noted. MIN MAX ...

Page 6

... AD5450/AD5451/AD5452/AD5453 ABSOLUTE MAXIMUM RATINGS Transient currents 100 mA do not cause SCR latch-up 25°C, unless otherwise noted. A Table 3. Parameter V to GND GND REF GND OUT Input Current to Any Pin Except Supplies 1 Logic Inputs and Output Operating Temperature Range, Extended ...

Page 7

... Alternatively, by means of the serial control bits, the device can be configured such that data is clocked into the shift register upon the rising edge of SCLK. Ground Pin. DAC Current Output. Exposed pad must be connected to ground. Rev Page AD5450/AD5451/AD5452/AD5453 OUT ...

Page 8

... AD5450/AD5451/AD5452/AD5453 TYPICAL PERFORMANCE CHARACTERISTICS 0. 25° 10V 0.20 REF 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 –0. 128 CODE Figure 6. INL vs. Code (8-Bit DAC) 0. 25° 10V 0.20 REF 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 –0.25 0 128 256 384 512 CODE Figure 7 ...

Page 9

... Rev Page AD5450/AD5451/AD5452/AD5453 = 25 ° AD5452 MAX DNL MIN DNL REFERENCE VOLTAGE (V) Figure 15. DNL vs. Reference Voltage = 25 ° 10V REF AD5450 ...

Page 10

... –0.1 –0.2 –0.3 –60 –40 – TEMPERATURE (°C) Figure 21. Gain Error (LSB) vs. Temperature 2 25° 1.5 AD5452 1.0 0.5 0 –0.5 –1.0 –1.5 –2 REFERENCE VOLTAGE (V) Figure 22. Gain Error (LSB) vs. Reference Voltage 2.0 I OUT 1 OUT 1.2 0.8 0.4 0 – ...

Page 11

... TEMPERATURE (°C) Figure 25. Supply Current vs. Temperature 25°C A AD5452 LOADING 010101010101 100 1k 10k 100k FREQUENCY (Hz) Figure 26. Supply Current vs. Update Rate AD5450/AD5451/AD5452/AD5453 1 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 2.5 10 ALL 1s ALL 0s 0 –10 –20 –30 –40 –50 –60 –70 –80 ...

Page 12

... AD5450/AD5451/AD5452/AD5453 25° –3 – ±2V, AD8038 C = 1pF REF COMP V = ±2V, AD8038 C = 1.5pF REF COMP V = ±15V, AD8038 C = 1pF REF COMP V = ±15V, AD8038 C = 1.5pF REF COMP V = ±15V, AD8038 C = 1.8pF REF COMP –9 10k 100k 1M FREQUENCY (Hz) Figure 30. Reference Multiplying Bandwidth vs. Frequency and Compensation Capacitor 0 ...

Page 13

... Figure 38. Narrow-Band SFDR 3.5V –20 –40 –60 –80 –100 –120 400k 500k 30k Figure 39. Narrow-Band SFDR , f Rev Page AD5450/AD5451/AD5452/AD5453 T = 25° 3.5V REF AD8038 AMPLIFIER 15k 20k 25k FREQUENCY (Hz kHz, Clock = 1 MHz OUT T = 25°C ...

Page 14

... AD5450/AD5451/AD5452/AD5453 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 10k 15k 20k 25k FREQUENCY (Hz) Figure 40. Narrow-Band IMD kHz, 25 kHz, Clock = 1 MHz OUT 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 0 100k 200k 300k FREQUENCY (Hz) Figure 41. Wideband IMD, f ...

Page 15

... Narrow-band SFDR is a measure of SFDR over an S arbitrary window size, in this case 50% of the fundamental. Digital SFDR is a measure of the usable dynamic range of the DAC when the signal is a digitally generated sine wave. Rev Page AD5450/AD5451/AD5452/AD5453 pins. This OUT 1 terminal when all 0s are OUT + ...

Page 16

... AD5450/AD5451/AD5452/AD5453 GENERAL DESCRIPTION DAC SECTION The AD5450/AD5451/AD5452/AD5453 are 8-/10-/12-/14-bit current output DACs, respectively, consisting of a segmented (4-bit) inverting R-2R ladder configuration. A simplified diagram for the 12-bit AD5452 is shown in Figure 43 REF S12 DAC DATA LATCHES AND DRIVERS Figure 43. AD5452 Simplified Ladder The feedback resistor has a value of R ...

Page 17

... REF n 2 where the fractional representation of the digital word loaded to the DAC 255 (8-bit AD5450 1023 (10-bit AD5451 4095 (12-bit AD5452 the resolution of the DAC. V REF V REF ±10V R1 SYNC NOTES 1. R1 AND R2 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED. ...

Page 18

... AD5450/AD5451/AD5452/AD5453 S tability In the I-to-V configuration, the I of the DAC and the OUT in verting node of the op amp must be connected as close as possible, and p roper PCB layout techniques must be employed. Because every code change corresponds to a step function peaking may occur if the op amp has limited gain bandwidth product (GBP) and there is excessive parasitic capacitance at the inverting node ...

Page 19

... There is a large range of single-supply amplifiers available from Analog Devices. Rev Page AD5450/AD5451/AD5452/AD5453 use with this series of current- 2 LSB accuracy requires a maximum he current-steering mode Most op amps have input bias currents ...

Page 20

... AD5450/AD5451/AD5452/AD5453 Table 7. Suitable ADI Precisio n References Part No. Output Voltage (V) Initial Tolerance (%) ADR01 10 0.05 ADR01 10 0.05 ADR02 5 0.06 ADR02 5 0.06 ADR03 2.5 0.10 ADR03 2.5 0.10 ADR06 3 0.10 ADR06 3 0.10 ADR431 2.5 0.04 ADR435 5 0.04 ADR391 2.5 0.16 ADR395 5 0.10 Table 8. Suitable ADI Precision Op Amps Part No. Supply Voltage ( OP97 ±2 to ±20 25 OP1177 ±2.5 to ±15 60 AD8551 2 AD8603 1 ...

Page 21

... SERIAL INTERFACE The AD5 0/AD5451/AD5452/A 5453 have an easy-to 3-wire in face ter that is compatible w ith SP and most DSP in terface standards. D ata is wr 16-bit w ord s. T his 16-bit word cons ists o 10, 12 dat a bits, as shown in Fig ure 50 and Figu 53. The AD5453 us ...

Page 22

... ADSP-BF5xx family of processors has an SPI-compatible port that enables the processor to communicate with SPI- compatible devices. A serial interface between the BlackFin ® processor and the AD5450/AD5451/AD5452/AD5453 DAC is shown in Figure 58. In this configuration, data is transferred thro ugh the MOSI (master output, slave input) pin. SYNC is driven by the SPIxSEL pin, which is a reconfigured programmable flag pin ...

Page 23

... SCLK of the DAC interface; the MOSI output drives the serial data line (SDIN) of the DAC. The SYNC AD5450/AD5451/ AD5452/AD5453* is being transmitted to the AD5450/AD5451/AD5452/AD5453, SYNC the SYNC line is taken low (PC7). Data appearing on the MOSI SDIN output is valid upon the falling edge of SCK. Serial data from the ...

Page 24

... In any circuit where accuracy is important, careful consideration of the power supply and ground return layout helps to ensure the rated performance. The printed circuit board on which a AD5450/AD5451/AD5452/AD5453 DAC is mounted should be designed so that the analog and digital sections are separated an d confined to certain areas of the board. If the DAC ...

Page 25

... 10µF 0.1µF TRIM + C12 GND 10µF AGND + C14 10µ C16 10µF Rev Page AD5450/AD5451/AD5452/AD5453 are used to power the output amplifier; the + and transceivers (V DD1 10µF SS 10µ AD8065AR 0.1µF V– 6 ...

Page 26

... AD5450/AD5451/AD5452/AD5453 Figure 65. Component-Side Artwork Figure 66. Silkscreen—Component-Side View (Top) Rev Page ...

Page 27

... AD5556 14 1 AD5555 14 2 AD5557 14 2 AD5543 16 1 AD5546 16 1 AD5545 16 2 AD5547 TSSOP LFCSP MSOP TSOT. AD5450/AD5451/AD5452/AD5453 Figure 67. Solder-Side Artwork 1 INL (LSB) Interface Package ±0.25 Parallel RU-16, CP-20 ±0.25 Serial RM-10 ±0.25 Parallel RU-20 ±0.25 Serial RU-10 ±0.25 Serial UJ-8 ±0.5 Serial RM-10 ±0.5 ...

Page 28

... AD5450/AD5451/AD5452/AD5453 OUTLINE DIMENSIONS 2.90 BSC 1.60 BSC 2.80 BSC PIN 1 INDICATOR 0.65 BSC 1.95 * 0.90 BSC 0.87 0.84 * 1.00 MAX 0.20 0.08 0.38 0.10 MAX 0.22 SEATING PLANE * COMPLIANT TO JEDEC STANDARDS MO-193-BA WITH THE EXCEPTION OF PACKAGE HEIGHT AND THICKNESS. Figure 68. 8-Lead Thin Small Outline Transistor Package [TSOT] (UJ-8) Dimensions shown in millimeters PIN 1 INDEX SEATING 3 ...

Page 29

... ORDERING GUIDE 1, 2 Model Resolutio n AD5450YUJZ-REEL 8 AD5450YUJZ-REEL7 8 AD5451YUJZ-REEL 10 AD5451YUJZ-REEL7 10 AD5452YUJZ-REEL 12 AD5452YUJZ-REEL7 12 AD5452YRM 12 AD5452YRM-REEL 12 AD5452YRMZ 12 AD5452YRMZ-REEL 12 AD5452YRMZ-REEL7 12 AD5453WBCPZ-RL 14 AD5453YUJZ-REEL 14 AD5453YUJZ-REEL7 14 AD5453YRM 14 AD5453YRM-REEL 14 AD54 53YRM-REEL7 14 AD5453YRMZ 14 AD5453YRMZ-REE L 14 AD5453YRMZ-REEL7 14 EVAL-AD5451EBZ EVAL-AD5452EBZ EVAL-AD5453EBZ RoHS Compliant Part Qualified for Automotive Applications. AUTOMOTIVE PRODUCTS The AD5453WBCPZ-RL model is available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that this automotive model may have specifications that differ from the commercial models ...

Page 30

... AD5450/AD5451/AD5452/AD5453 NOTES Rev Page ...

Page 31

... NOTES AD5450/AD5451/AD5452/AD5453 Rev Page ...

Page 32

... AD5450/AD5451/AD5452/AD5453 NOTES ©2005–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04587-0-3/11(E) Rev Page ...

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