EVAL-AD5447EBZ Analog Devices Inc, EVAL-AD5447EBZ Datasheet

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EVAL-AD5447EBZ

Manufacturer Part Number
EVAL-AD5447EBZ
Description
BOARD EVALUATION FOR AD5447
Manufacturer
Analog Devices Inc
Datasheets

Specifications of EVAL-AD5447EBZ

Number Of Dac's
2
Number Of Bits
12
Outputs And Type
2, Single Ended
Sampling Rate (per Second)
21.3M
Data Interface
Parallel
Settling Time
80ns
Dac Type
Current
Voltage Supply Source
Single
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
AD5447
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
10 MHz multiplying bandwidth
INL of ±0.25 LSB @ 8 bits
20-lead and 24-lead TSSOP packages
2.5 V to 5.5 V supply operation
±10 V reference input
21.3 MSPS update rate
Extended temperature range: −40°C to +125°C
4-quadrant multiplication
Power-on reset
0.5 µA typical current consumption
Guaranteed monotonic
Readback function
AD7528 upgrade (AD5428)
AD7547 upgrade (AD5447)
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
Rev. B
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.
INPUTS
DATA
DAC A/B
DGND
DB11
DB7
DB9
R/W
DB0
V
CS
DD
AD5428/AD5440/AD5447
FUNCTIONAL BLOCK DIAGRAM
POWER-ON
CONTROL
BUFFER
RESET
INPUT
LOGIC
Multiplying DACs with Parallel Interface
Figure 1. AD5428/AD5440/AD5447
Dual 8-/10-/12-Bit, High Bandwidth,
LATCH
LATCH
GENERAL DESCRIPTION
The AD5428/AD5440/AD5447
dual-channel, current output digital-to-analog converters (DACs),
respectively. These devices operate from a 2.5 V to 5.5 V power
supply, making them suited to battery-powered and other
applications.
As a result of being manufactured on a CMOS submicron process,
they offer excellent 4-quadrant multiplication characteristics,
with large signal multiplying bandwidths of up to 10 MHz.
The DACs use data readback, allowing the user to read the
contents of the DAC register via the DB pins. On power-up, the
internal register and latches are filled with 0s, and the DAC
outputs are at zero scale.
The applied external reference input voltage (V
the full-scale output current. An integrated feedback resistor (R
provides temperature tracking and full-scale voltage output when
combined with an external I-to-V precision amplifier.
The AD5428 is available in a small 20-lead TSSOP package, and
the AD5440/AD5447 DACs are available in small 24-lead TSSOP
packages.
1
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113© 2004–2011 Analog Devices, Inc. All rights reserved.
U.S. Patent Number 5,689,257.
V
V
8-/10-/12-BIT
R-2R DAC A
8-/10-/12-BIT
R-2R DAC B
REF
REF
A
B
AD5428/AD5440/AD5447
R
R
R
AGND
R
I
I
OUT
OUT
FB
FB
A
B
A
B
1
are CMOS, 8-, 10-, and 12-bit,
www.analog.com
REF
) determines
FB
)

Related parts for EVAL-AD5447EBZ

EVAL-AD5447EBZ Summary of contents

Page 1

FEATURES 10 MHz multiplying bandwidth INL of ±0.25 LSB @ 8 bits 20-lead and 24-lead TSSOP packages 2 5.5 V supply operation ±10 V reference input 21.3 MSPS update rate Extended temperature range: −40°C to +125°C 4-quadrant multiplication ...

Page 2

... Changes to Table 9 Through Table 11 ......................................... 21 Changes to Microprocessor Interfacing Section ........................ 22 Added Figure 44 Through Figure 46 ........................................... 22 Added 8xC51-to-AD5428/AD5440/AD5447 Interface Section ........................................................................ 22 Added ADSP-BF5xx-to-AD5428/AD5440/AD5447 Interface Section ........................................................................ 22 Changes to Power Supplies for the Evaluation Board Section .... 23 Changes to Table 13 ....................................................................... 28 Updated Outline Dimensions ....................................................... 29 Changes to Ordering Guide .......................................................... 29 7/04—Revision 0: Initial Version Rev Page ...

Page 3

SPECIFICATIONS 2 5 Temperature range for Y version: −40°C to +125°C. All specifications T DD REF OUT otherwise noted. DC performance is measured with OP177, ...

Page 4

AD5428/AD5440/AD5447 Parameter Multiplying Feedthrough Error Output Capacitance Digital Feedthrough Output Noise Spectral Density Analog THD Digital THD 100 kHz f OUT 50 kHz f OUT SFDR Performance (Wide Band) Clock = 10 MHz 500 kHz f OUT 100 kHz f ...

Page 5

TIMING CHARACTERISTICS All input signals are specified with (10 temperature range for Y version: −40°C to +125°C. All specifications T REF ...

Page 6

AD5428/AD5440/AD5447 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 DGND ...

Page 7

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 4. AD5428 Pin Function Descriptions Pin No. Mnemonic Description 1 AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to achieve single-supply ...

Page 8

AD5428/AD5440/AD5447 Table 5. AD5440 Pin Function Descriptions Pin No. Mnemonic Function AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to 1 achieve single-supply operation ...

Page 9

Table 6. AD5447 Pin Function Descriptions Pin No. Mnemonic Description 1 AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to achieve single-supply operation ...

Page 10

AD5428/AD5440/AD5447 TYPICAL PERFORMANCE CHARACTERISTICS 0. 25° 10V REF 0. 0.10 0.05 0 –0.05 –0.10 –0.15 –0. 100 150 CODE Figure 7. INL vs. Code (8-Bit DAC) 0 ...

Page 11

MAX INL 0.3 0.2 0.1 0 MIN INL –0.1 –0.2 –0 REFERENCE VOLTAGE Figure 13. INL vs. Reference Voltage –0. 25° –0.45 –0.50 –0.55 ...

Page 12

AD5428/AD5440/AD5447 25°C A LOADING 100 1k 10k 100k FREQUENCY (Hz) Figure 19. Supply Current vs. Update Rate 25°C ALL ...

Page 13

T = 25° AMP = AD8038 0 –20 –40 FULL SCALE –60 ZERO SCALE –80 –100 –120 1 10 100 1k 10k 100k FREQUENCY (Hz) Figure 25. Power Supply Rejection Ratio vs. Frequency –60 ...

Page 14

AD5428/AD5440/AD5447 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 0 0.5 1.0 1.5 2.0 2.5 3.0 FREQUENCY (MHz) Figure 31. Wideband SFDR kHz, Clock = 10 MHz OUT 0 –10 –20 –30 –40 –50 –60 ...

Page 15

TERMINOLOGY Relative Accuracy (Endpoint Nonlinearity) A measure of the maximum deviation from a straight line passing through the endpoints of the DAC transfer function measured after adjusting for zero and full scale and is typically expressed in LSBs ...

Page 16

AD5428/AD5440/AD5447 GENERAL DESCRIPTION DAC SECTION The AD5428/AD5440/AD5447 are CMOS 8-, 10-, and 12-bit, dual-channel, current output DACs consisting of a standard inverting R-2R ladder configuration. Figure 37 shows a simplified diagram for a single channel of the 8-bit AD5428. The ...

Page 17

AD5428/AD5440/AD5447 V DD DB0 DATA INPUT INPUTS BUFFER DB7 DB9 DB11 DAC A/B CONTROL CS LOGIC R/W DGND POWER-ON RESET 1 R1, R2 AND R3, R4 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED. 2 C1, C2 PHASE COMPENSATION (1pF TO ...

Page 18

AD5428/AD5440/AD5447 Bipolar Operation In some applications, it may be necessary to generate full 4-quad- rant multiplying operation or a bipolar output swing. This can easily be accomplished by using another external amplifier and some external resistors, as shown in Figure ...

Page 19

SINGLE-SUPPLY APPLICATIONS Voltage-Switching Mode Figure 40 shows the DACs operating in voltage-switching mode. The reference voltage applied to the I IN and the output voltage is available at the V configuration, a positive reference voltage results in ...

Page 20

AD5428/AD5440/AD5447 DIVIDER OR PROGRAMMABLE GAIN ELEMENT Current-steering DACs are very flexible and lend themselves to many applications. If this type of DAC is connected as the feedback element amp and R FB resistor, as shown in Figure ...

Page 21

Table 9. Suitable ADI Precision 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 ...

Page 22

AD5428/AD5440/AD5447 PARALLEL INTERFACE Data is loaded into the AD5428/AD5440/AD5447 in 8-, 10-, or 12-bit parallel word format. Control lines CS and R/ W allow data to be written to or read from the DAC register. A write event takes place ...

Page 23

... EVALUATION BOARD FOR THE AD5447 The evaluation board consists of an AD5447 DAC and a current-to-voltage amplifier, the AD8065. Included on the evaluation board reference, the ADR01. An external reference may also be applied via an SMB input. The evaluation kit consists of a CD-ROM with self-installing PC software to control the DAC. The software simply allows the user to write a code to the device ...

Page 24

... AD5428/AD5440/AD5447 Figure 47. Schematic of AD5447 Evaluation Board Rev Page ...

Page 25

Figure 48. Component-Side Artwork Figure 49. Silkscreen—Component-Side View (Top Layer) Rev Page AD5428/AD5440/AD5447 ...

Page 26

AD5428/AD5440/AD5447 Figure 50. Solder-Side Artwork Rev Page ...

Page 27

BILL OF MATERIALS Table 12. Name/Position Part Description C1 X7R ceramic capacitor C2 X7R ceramic capacitor C3 Tantalum capacitor—Taj series C4 X7R ceramic capacitor C5 Tantalum capacitor—Taj series C6 X7R ceramic capacitor C7 NPO ceramic capacitor C8 X7R ceramic capacitor ...

Page 28

AD5428/AD5440/AD5447 OVERVIEW OF AD54XX DEVICES Table 13. Part No. Resolution No. DACs AD5424 8 1 AD5426 8 1 AD5428 8 2 AD5429 8 2 AD5450 8 1 AD5432 10 1 AD5433 10 1 AD5439 10 2 AD5440 10 2 AD5451 ...

Page 29

... AD5440YRU-REEL7 10 AD5440YRUZ 10 AD5440YRUZ-REEL 12 AD5440YRUZ-REEL7 12 AD5447YRU 12 AD5447YRU-REEL 12 AD5447YRUZ 12 AD5447YRUZ-REEL 12 AD5447YRUZ-REEL7 12 EVAL-AD5447EBZ RoHS Compliant Part. 24 PIN 1 0.15 0.05 0.75 8° 0.60 0° 0.45 0.10 COPLANARITY Figure 52. 24-Lead Thin Shrink Small Outline Package [TSSOP] INL (LSB) Temperature Range ±0.5 –40 °C to +125°C ±0.5 – ...

Page 30

AD5428/AD5440/AD5447 NOTES Rev Page ...

Page 31

NOTES Rev Page AD5428/AD5440/AD5447 ...

Page 32

AD5428/AD5440/AD5447 NOTES © 2004–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04462–0–3/11(B) Rev Page ...

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