AD9704 Analog Devices, AD9704 Datasheet

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AD9704

Manufacturer Part Number
AD9704
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD9704

Resolution (bits)
8bit
Dac Update Rate
175MSPS
Dac Settling Time
11ns
Max Pos Supply (v)
+3.6V
Single-supply
Yes
Dac Type
Current Out
Dac Input Format
Par

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Data Sheet
FEATURES
175 MSPS update rate
Low power member of pin-compatible
Low power dissipation
Wide supply voltage: 1.7 V to 3.6 V
SFDR to Nyquist
Adjustable full-scale current outputs: 1 mA to 5 mA
On-chip 1.0 V reference
CMOS-compatible digital interface
Common-mode output: adjustable 0 V to 1.2 V
Power-down mode <2 mW at 3.3 V (SPI controllable)
Self-calibration
Compact 32-lead LFCSP_VQ, RoHS compliant package
GENERAL DESCRIPTION
The
family in the TxDAC series of high performance, CMOS digital-to-
analog converters (DACs). This pin-compatible, 8-/10-/12-/14-bit
resolution family is optimized for low power operation, while
maintaining excellent dynamic performance. The AD9704/
AD9705/AD9706/AD9707
AD9748/AD9740/AD9742/AD9744
and is specifically optimized for the transmit signal path of
communication systems. All of the devices share the same
interface, LFCSP_VQ package, and pinout, providing an upward or
downward component selection path based on performance,
resolution, and cost. The
offers exceptional ac and dc performance, while supporting
update rates up to 175 MSPS.
The flexible power supply operating range of 1.7 V to 3.6 V and low
power dissipation of the
make them well-suited for portable and low power applications.
Power dissipation of the
be reduced to 15 mW, with a small trade-off in performance, by
lowering the full-scale current output. In addition, a power-down
mode reduces the standby power dissipation to approximately
2.2 mW.
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.
TxDAC product family
12 mW at 80 MSPS, 1.8 V
50 mW at 175 MSPS, 3.3 V
AD9707: 84 dBc at 5 MHz output
AD9707: 83 dBc at 10 MHz output
AD9707: 75 dBc at 20 MHz output
AD9704/AD9705/AD9706/AD9707
AD9704/AD9705/AD9706/AD9707
AD9704/AD9705/AD9706/AD9707
AD9704/AD9705/AD9706/AD9707
family is pin-compatible with the
family of TxDAC converters
are the fourth-generation
parts
can
8-/10-/12-/14-Bit, 175 MSPS TxDAC
AD9704/AD9705/AD9706/AD9707
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The
peripheral interface (SPI®) that provides a higher level of program-
mability to enhance performance of the DAC. An adjustable
output, common-mode feature allows for easy interfacing to
other components that require common modes from 0 V to 1.2 V.
Edge-triggered input latches and a 1.0 V temperature-compensated
band gap reference have been integrated to provide a complete,
monolithic DAC solution. The digital inputs support 1.8 V and
3.3 V CMOS logic families.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
Digital-to-Analog Converters
AD9704/AD9705/AD9706/AD9707
Pin Compatible. The
line of TxDAC® converters is pin-compatible with the
AD9748/AD9740/AD9742/AD9744
(LFCSP_VQ package).
Low Power. Complete CMOS DAC operates on a single
supply of 3.6 V down to 1.7 V, consuming 50 mW (3.3 V)
and 12 mW (1.8 V). The DAC full-scale current can be
reduced for lower power operation. Sleep and power-down
modes are provided for low power idle periods.
Self-Calibration. Self-calibration enables true 14-bit INL
and DNL performance in the AD9707.
Twos Complement/Binary Data Coding Support. Data
input supports twos complement or straight binary data
coding.
Flexible Clock Input. A selectable high speed, single-ended,
and differential CMOS clock input supports 175 MSPS
conversion rate.
Device Configuration. Device can be configured through
pin strapping, and SPI control offers a higher level of
programmability.
Easy Interfacing to Other Components. Adjustable
common-mode output allows for easy interfacing to other
signal chain components that accept common-mode levels
from 0 V to 1.2 V.
On-Chip Voltage Reference. The AD9704/AD9705/AD9706/
AD9707
gap voltage reference.
Industry-Standard 32-Lead LFCSP_VQ Package.
include a 1.0 V temperature-compensated band
©2006–2011 Analog Devices, Inc. All rights reserved.
AD9704/AD9705/AD9706/AD9707
has an optional serial
TxDAC line
www.analog.com

Related parts for AD9704

AD9704 Summary of contents

Page 1

... The AD9704/AD9705/AD9706/AD9707 family in the TxDAC series of high performance, CMOS digital-to- analog converters (DACs). This pin-compatible, 8-/10-/12-/14-bit resolution family is optimized for low power operation, while maintaining excellent dynamic performance. The AD9704/ AD9705/AD9706/AD9707 family is pin-compatible with the AD9748/AD9740/AD9742/AD9744 family of TxDAC converters and is specifically optimized for the transmit signal path of communication systems ...

Page 2

... ESD Caution................................................................................ 11 Pin Configurations and Function Descriptions ......................... 12 AD9707 ........................................................................................ 12 AD9706 ........................................................................................ 13 AD9705 ........................................................................................ 14 AD9704 ........................................................................................ 15 Typical Performance Characteristics ........................................... 16 AD9707 ........................................................................................ 16 AD9704, AD9705, and AD9706............................................... 23 REVISION HISTORY 10/11—Rev Rev. B Changes to Features Section............................................................ 1 Changes to Table 1............................................................................ 5 Changes to Table 2............................................................................ 6 Changes to Table 4............................................................................ 8 Changes to Table 5............................................................................ 9 Changes to Figure 3 and Table 9................................................... 12 Changes to Figure 4 and Table 10 ...

Page 3

... Changes to Table 4 ............................................................................7 Changes to Table 6 ............................................................................9 Changes to Figure 17 and Figure 18 .............................................16 Deleted Figure 29, Renumbered Sequentially .............................19 Changes to Figure 44 ......................................................................22 Changes to Figure 57 Caption .......................................................25 AD9704/AD9705/AD9706/AD9707 Changes to Figure 73, Figure 75, and Figure 77..........................31 Changes to Table 16 ........................................................................32 Replaced Single-Ended Buffered Output Using an Op Amp Section ....................................................................................40 Changes to Figure 91 ......................................................................41 Changes to Figure 93 ...

Page 4

... AD9704/AD9705/AD9706/AD9707 FUNCTIONAL BLOCK DIAGRAM 0.1µF 1. SET 3.6V CLK+ CLK– 1.7V TO 3.6V 1.7V TO 3.6V AVDD ACOM 1.0V REF AD9707 REFIO CURRENT SOURCE FS ADJ ARRAY CLKVDD SEGMENTED LSB CLKCOM SWITCHES SWITCHES LATCHES SPI DVDD DCOM DIGITAL INPUTS (DB13 TO DB0) SLEEP/CSB Figure 1. Rev Page Data Sheet ...

Page 5

... Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ 10 8 ±0.10 ±0.36 ±0.03 ±0.10 ±0.09 ±0.31 ±0.02 ±0.03 −0.03 0 +0.03 −0.03 0 −2.7 −0.1 +2.7 −2.7 −0.1 −2.7 −0.1 +2.7 −2.7 −0 −0.8 +0.8 −0.8 200 ...

Page 6

... Rev Page AD9705 AD9704 Min Typ Max Min Typ 0.7 7.5 0.7 0.6 1 0.6 42.5 64 42.5 −0.2 +0.03 +0.2 −0.2 +0.03 −40 +85 −40 AD9705 AD9704 Max Min Typ Max Min Typ 175 175 2.5 2.5 2.5 2 ...

Page 7

... OUTFS AD9707 AD9706 Min Typ Max Min Typ Max 2 0.9 0 0.9 −10 +10 −10 + 1.4 1.4 0.3 0.3 1.6 1.6 0.6 0.6 2.8 2 0.75 1.5 2.25 0.75 1.5 2.25 0.5 1.5 0.5 1.5 Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ 2 0.9 0 −10 +10 − 1.4 1.4 0.3 0.3 1.6 1.6 0.6 0.6 2.8 2 0.75 1.5 2.25 0.75 1.5 0.5 1.5 0.5 1.5 Max Unit V 0.9 V +10 μA 10 μ ...

Page 8

... Rev Page AD9705 AD9704 Min Typ Max Min Typ 10 8 ±0.10 ±0.36 ±0.03 ±0.09 ±0.30 ±0.02 −0.03 0 +0.03 −0.03 0 −2.7 −0.2 +2.7 −2.7 −0 2 −0.8 +0.8 −0.8 200 200 5 5 0.98 1.025 1.08 0.98 1.025 100 100 0.1 1.25 0.1 10 ...

Page 9

... Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ −2 −0.1 +2 −2 −0.1 −40 +85 −40 AD9705 AD9704 Max Min Typ Max Min Typ 125 125 11 11 5.6 5 2.5 2.5 2.5 2 ...

Page 10

... Typ 1.2 1.8 1.2 1.8 0 0.5 0 −10 +10 −10 + 2.3 2 2.4 2.4 0.1 0.1 6.2 6.2 0 1.8 0 0.4 0.9 1.3 0.4 0.9 0.5 1.5 0.5 1 LPW IOUTA OR IOUTB 0.1% Figure 2. Timing Diagram Rev Page AD9705 AD9704 Max Min Typ Max Min 1.2 1.8 1.2 0.5 0 0.5 +10 −10 +10 −10 +10 +10 5 2.3 2 2.4 2.4 0.1 0.1 6.2 6.2 1.8 0 1.8 0 1.3 0.4 0.9 1.3 0.4 0.5 1.5 0.5 H 0.1% Data Sheet Typ Max Unit 1 0.5 V +10 μ ...

Page 11

... Storage Temperature Range −65°C to +150°C Lead Temperature (10 sec) 300°C AD9704/AD9705/AD9706/AD9707 Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied ...

Page 12

... AD9704/AD9705/AD9706/AD9707 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS AD9707 Table 9. AD9707 Pin Function Descriptions Pin No. Mnemonic Description 28 to 32, 1, DB12 to DB1 Data Bit 12 to Data Bit DVDD Digital Supply Voltage (1 3.6 V). 9 DB0 (LSB) Least Significant Data Bit (LSB). 10, 26 DCOM Digital Common ...

Page 13

... Scale) DB0 (LSB AVDD PIN/SPI/RESET NOTES CONNECT. DO NOT CONNECT TO THIS PIN RECOMMENDED THAT THE EXPOSED PAD BE THERMALLY CONNECTED TO A COPPER GROUND PLANE FOR ENHANCED ELECTRICAL AND THERMAL PERFORMANCE. Figure 4. AD9706 Pin Configuration Rev Page AD9704/AD9705/AD9706/AD9707 ...

Page 14

... AD9704/AD9705/AD9706/AD9707 AD9705 Table 11. AD9705 Pin Function Descriptions Pin No. Mnemonic Description 28 to 32, DB8 to DB1 Data Bit 8 to Data Bit DVDD Digital Supply Voltage (1 3.6 V). 5 DB0 (LSB) Least Significant Data Bit (LSB Connect. 10, 26 DCOM Digital Common. 11 CLKVDD Clock Supply Voltage (1 ...

Page 15

... Data Sheet AD9704 Table 12. AD9704 Pin Function Descriptions Pin No. Mnemonic Description 28 to 32, 1 DB6 to DB1 Data Bit 6 to Data Bit 1. 2 DB0 (LSB) Least Significant Data Bit (LSB). 3 DVDD Digital Supply Voltage (1 3.6 V Connect. 10, 26 DCOM Digital Common. ...

Page 16

... AD9704/AD9705/AD9706/AD9707 TYPICAL PERFORMANCE CHARACTERISTICS AD9707 VDD = 3 mA, unless otherwise noted. OUTFS 10MSPS CLOCK 65MSPS CLOCK 175MSPS 70 CLOCK 125MSPS 60 CLOCK (MHz) OUT Figure 7. SFDR vs. f OUT ...

Page 17

... CLOCK = 175MSPS CLOCK – OUT CLOCK 175MSPS dBFS Figure 18. Dual-Tone IMD vs. Lower f Rev Page AD9704/AD9705/AD9706/AD9707 –120 –125 –130 –135 1mA –140 2mA –145 –150 5mA –155 –160 –165 FREQUENCY (MHz) Figure 16 ...

Page 18

... AD9704/AD9705/AD9706/AD9707 1.0 0.5 0 –0.5 –1.0 –1.5 0 5000 10000 CODE Figure 19. Typical Uncalibrated INL 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 0 5000 10000 CODE Figure 20. Typical Uncalibrated DNL 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 5000 10000 CODE Figure 21. Typical Calibrated INL 0.6 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 0 15000 +25°C ...

Page 19

... FREQUENCY (MHz) Figure 25. Dual-Tone SFDR f = 78MSPS CLOCK f = 15.0MHz OUT1 f = 15.4MHz OUT2 SFDR = 77dBc AMPLITUDE = 0dBFS –100 –110 Rev Page AD9704/AD9705/AD9706/AD9707 –10 f CLOCK –20 f OUT1 f OUT2 –30 f OUT3 f OUT4 –40 SFDR = 77dBc AMPLITUDE = 0dBFS –50 –60 –70 –80 –90 ...

Page 20

... AD9704/AD9705/AD9706/AD9707 VDD = 1 mA, unless otherwise noted. OUTFS 95 10MSPS 90 65MSPS 80MSPS FREQUENCY (MHz) Figure 27. SFDR vs (MHz) OUT Figure 28. SFDR vs MSPS OUT ...

Page 21

... Figure 36. Dual-Tone IMD vs. Lower f OUTFS 125MSPS and 0 dBFS Figure 37. Dual-Tone IMD vs. Lower f OUTFS 125MSPS and 0 dBFS OUTFS Rev Page AD9704/AD9705/AD9706/AD9707 –40°C 75 +85° +25° ...

Page 22

... AD9704/AD9705/AD9706/AD9707 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 0 5000 10000 CODE Figure 39. Typical Uncalibrated DNL –40° +85°C +25° (MHz) OUT Figure 40. SFDR vs. Temperature at 80 MSPS –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 – ...

Page 23

... OUTFS –115 –120 –125 –130 –135 –140 12-BIT –145 14-BIT –150 –155 –160 (MHz) OUT Figure 44. AD9704, AD9705, AD9706, AD9707 NSD vs. f 175 MSPS 0.03 0.02 0.01 0 –0.01 –0. 100 150 CODE Figure 45. AD9704 Typical Uncalibrated INL 0.01 0 –0.01 –0.02 –0.03 0 ...

Page 24

... SFDR = 67dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 52. AD9704 Dual-Tone SFDR 3000 4000 = 78MSPS CLOCK = 15.0MHz OUT 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page –10 ...

Page 25

... Data Sheet –10 f – –30 SFDR = 77dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 56. AD9706 Dual-Tone SFDR = 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page AD9704/AD9705/AD9706/AD9707 ...

Page 26

... OUT Figure 57. AD9704, AD9705, AD9706, AD9707 NSD vs. f 0.04 0.03 0.02 0.01 0 –0.01 –0. 100 150 CODE Figure 58. AD9704 Typical Uncalibrated INL 0.01 0 –0.01 –0.02 –0. 100 ...

Page 27

... SFDR = 67dBc –30 AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 64. AD9704 Single-Tone SFDR –10 f – –30 SFDR = 67dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 ...

Page 28

... AD9704/AD9705/AD9706/AD9707 –10 f – –30 SFDR = 73dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 69. AD9706 Dual-Tone SFDR = 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page Data Sheet ...

Page 29

... CLKVDD CLKCOM SEGMENTED LSB SWITCHES SWITCHES AD9512 CLK+ CLK1 LATCHES CLK– CLKB DVDD DCOM DIGITAL DATA CLOCK OUTPUT DIGITAL DATA SOURCE DPG Figure 70. Basic AC Characterization Test Setup Rev Page AD9704/AD9705/AD9706/AD9707 ACOM AD9707 ADT4-6T+ OTCM IOUTA IOUTB 1kΩ SPI SLEEP/CSB ...

Page 30

... AD9707 are referenced to ACOM. General Operation of the Serial Interface There are two phases to a communication cycle with the AD9704/ AD9705/AD9706/AD9707. Phase 1 is the instruction cycle, which is the writing of an instruction byte into the AD9704/AD9705/ AD9706/AD9707, coincident with the first eight SCLK rising edges ...

Page 31

... If the SPI port is in the midst of an instruction cycle or a data transfer cycle, none of the present data is written. The remaining SCLK edges are for Phase 2 of the communication cycle. Phase 2 is the actual data transfer between the AD9704/ AD9705/AD9706/AD9707 and the system controller. Phase 2 of the communication cycle is a transfer of one, two, three, or four data bytes, as determined by the instruction byte ...

Page 32

... AD9704/AD9705/AD9706/AD9707 INSTRUCTION CYCLE DATA TRANSFER CYCLE CSB SCLK R SDIO N Figure 72. Serial Register Interface Timing, MSB First Write INSTRUCTION CYCLE DATA TRANSFER CYCLE CSB SCLK R SDIO N D7 SDO Figure 73. Serial Register Interface Timing, MSB First Read ...

Page 33

... Description 0000 Hardware version identifier Default Description 00 Calibration memory 00 = uncalibrated 01 = self-calibration 10 = not used 11 = user input 000 Calibration clock divide ratio from DAC clock rate 000 = divide by 256 001 = divide by 128 … 110 = divide by 4 111 = divide by 2 Rev Page AD9704/AD9705/AD9706/AD9707 ...

Page 34

... OUTFS setting I (R SET I OUTFS power dissipation of the AD9704/AD9705/AD9706/ AD9707, which is proportional to I The second benefit relates to the ability to adjust the output over range, which is useful for controlling the transmitted power. Register Setting Register 0x00, Bit (default) ...

Page 35

... OUTFS N DAC CODE = 2 − 1, where 10, 12 for the AD9704, AD9705, AD9706, and AD9707, respectively), while IOUTB, the complementary output, provides no current. The current output appearing at IOUTA and IOUTB is a function of both the input ...

Page 36

... AD9704/AD9705/AD9706/AD9707 the output common mode to a value other than ACOM via Pin 19 (OTCM). This extends the compliance range of the outputs and facilitates interfacing the output of the AD9704/AD9705/AD9706/ AD9707 to components that require common-mode levels other than 0 V. The OTCM pin demands dynamically changing current and should be driven by a low source impedance to prevent a common-mode signal from appearing on the DAC outputs ...

Page 37

... Data Sheet POWER DISSIPATION The power dissipation the AD9704/AD9705/AD9706/ D AD9707 is dependent on several factors that include • The power supply voltages (AVDD, CLKVDD, and DVDD) • The full-scale current output, I OUTFS • The update rate, f CLOCK • The reconstructed digital input waveform ...

Page 38

... Turn off output current and internal band gap reference SELF-CALIBRATION The AD9704/AD9705/AD9706/AD9707 feature that improves the DNL of the device. Performing a self- calibration on the device improves device performance in low frequency applications. The device performance in applications where the analog output frequencies are above 1 MHz are generally ...

Page 39

... Wait at least 160 CLK+/CLK− clock cycles 6. Repeat Step 3 through Step 5 for each of the remaining 32 coefficients by incrementing the address by one for each write. 7. Clear the SMEMWR bit by writing 0x00 to Register 0x0F. 8. Disable the calibration clock by clearing the CALCLK bit (Register 0x02, Bit 0). Rev Page AD9704/AD9705/AD9706/AD9707 ...

Page 40

... AD9704/AD9705/AD9706/AD9707 APPLICATIONS INFORMATION OUTPUT CONFIGURATIONS The following sections illustrate some typical output configurations for the AD9704/AD9705/AD9706/AD9707. Unless otherwise noted assumed that I nominal 2 mA. For applications requiring the optimum dynamic performance, a differential output configuration is suggested. A differential output configuration can consist of either an RF transformer or a differential op amp configuration. ...

Page 41

... The DPG generates Analog Devices provided and user created digital vectors that are input into the AD9704/AD9705/AD9706/AD9707 provided with the evaluation board allows the user to program the registers in the product and the DPG. The AD9704/AD9705/ AD9706/AD9707 port that also provides the SPI port interface. ...

Page 42

... SEATING PLANE ORDERING GUIDE Model 1 Temperature Range AD9704BCPZ −40°C to +85°C AD9704BCPZRL7 −40°C to +85°C AD9704-DPG2-EBZ AD9705BCPZ −40°C to +85°C AD9705BCPZRL7 −40°C to +85°C AD9705-DPG2-EBZ AD9706BCPZ −40°C to +85°C AD9706BCPZRL7 −40°C to +85°C AD9706-DPG2-EBZ AD9707BCPZ − ...

Page 43

... Data Sheet NOTES AD9704/AD9705/AD9706/AD9707 Rev Page ...

Page 44

... AD9704/AD9705/AD9706/AD9707 NOTES ©2006–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05926-0-10/11(B) Rev Page Data Sheet ...

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