ad5066bruz-1reel7 Analog Devices, Inc., ad5066bruz-1reel7 Datasheet

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ad5066bruz-1reel7

Manufacturer Part Number
ad5066bruz-1reel7
Description
Fully Accurate 16-bit Unbuffered Vout Dac Spi Interface 2.7 V To 5.5 V In A Tssop
Manufacturer
Analog Devices, Inc.
Datasheet
Preliminary Technical Data
FEATURES
Low power Quad 16 bit DAC, ± 1LSB INL
Individual reference pins
2.7 V to 5.5 V power supply
Unbuffered voltage output capable of driving 60KΩ
Fast Settling time of 4 us typically
Power-on reset to zero scale or mid-scale
Per channel power-down
3 power-down functions
Low glitch on power up
Hardware LDAC with LDAC override function
CLR Function to programmable code
Small 16 lead TSSOP
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
GENERAL DESCRIPTION
The AD5066 is a low power, 16-bit quad-channel, unbuffered
voltage-out DAC offering relative accuracy specs of 1LSB INL
with individual reference pin and can operate from a single
2.7V to 5.5V. The AD5066 parts also offer a differential
accuracy specification of ±1 LSB. Reference buffers are also
provided on-chip. The parts use a versatile 3-wire, low power
Schmitt trigger serial interface that operates at clock rates up to
50 MHz and is compatible with standard SPI®, QSPI™,
MICROWIRE™, and DSP interface standards. The AD5066
incorporates a power-on reset circuit that ensures the DAC
output powers up zero scale or midscale and remains there until
a valid write takes place to the device. The AD5066 contain a
power-down feature that reduces the current consumption of
the device to typically 330 nA at 5 V and provides software
selectable output loads while in power-down mode. The part
can be placed into power-down mode over the serial interface.
Total unadjusted error for the part is <0.8 mV. Both parts
exhibit very low glitch on power-up.
Rev. PrB
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.
Fully Accurate 16-Bit UnBuffered V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Table 1. Related Devices
Part No.
AD5666
AD5065/45/25
AD5064/44/24
AD5063/62
AD5061
AD5060/40
The outputs of all DACs can be updated simultaneously using
the LDAC function, with the added functionality of user-select-
able DAC channels to simultaneously update. There is also an
asynchronous CLR that clears all DACs to a software-selectable
code - 0 V, midscale, or full scale.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
6.
7.
Quad channel available in 16-lead TSSOP package.
Individual voltage reference pins
16 bit accurate, 1 LSB INL.
Low glitch on power-up.
High speed serial interface with clock speeds up to 50 MHz.
Three power-down modes available to the user.
Reset to known output voltage (zero scale).
Interface 2.7 V to 5.5 V in a TSSOP
FUNCTIONAL BLOCK DIAGRAMS
Description
Quad,16-bit buffered D/A,16 LSB INL, TSSOP
Quad,16-bit buffered D/A,1 LSB INL, TSSOP
Quad 16-bit nanoDAC, 1 LSB INL, TSSOP
16-bit nanoDAC, 1 LSB INL, MSOP
16-/14bit nanoDAC, 4 LSB INL, SOT-23
16-/14bit nanoDAC, 1 LSB INL, SOT-23
© 2007 Analog Devices, Inc. All rights reserved.
Figure 1.AD5066
OUT
AD5066
www.analog.com
DAC SPI

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ad5066bruz-1reel7 Summary of contents

Page 1

... High speed serial interface with clock speeds MHz. 6. Three power-down modes available to the user. 7. Reset to known output voltage (zero scale). One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 © 2007 Analog Devices, Inc. All rights reserved. DAC SPI OUT AD5066 Figure 1.AD5066 www.analog.com ...

Page 2

AD5066 TABLE OF CONTENTS REVISION HISTORY Preliminary Technical Data Rev. PrB | Page ...

Page 3

Preliminary Technical Data SPECIFICATIONS kΩ to GND unless otherwise noted. MAX Table 2. Parameter Min STATIC PERFORMANCE 3 Resolution 16 Relative Accuracy Differential Nonlinearity Total ...

Page 4

AD5066 Parameter Min Pin Capacitance POWER REQUIREMENTS V 2 (Normal Mode 4 5 (All Power-Down Modes 4 5 Temperature range ...

Page 5

Preliminary Technical Data AC CHARACTERISTICS kΩ to GND unless otherwise noted. Table Parameter Min Output Voltage Settling Time Output Voltage Settling Time Slew Rate ...

Page 6

AD5066 TIMING CHARACTERISTICS All input signals are specified with ns/V (10 Figure 2 5.5 V. All specifications T DD Table 4. Limit ...

Page 7

Preliminary Technical Data t 10 SCLK SYNC DIN DB23 1 LDAC 2 LDAC t CLR 13 V OUT 1 ASYNCHRONOUS LDAC UPDATE MODE. 2 SYNCHRONOUS LDAC UPDATE MODE ...

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AD5066 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter Rating V to GND −0 Digital Input Voltage to GND −0 GND −0 ...

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Preliminary Technical Data PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Description 1 LDAC Pulsing this pin low allows any or all DAC registers to be updated if the input registers have new data. This ...

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AD5066 TERMINOLOGY Relative Accuracy For the DAC, relative accuracy, or integral nonlinearity (INL measure of the maximum deviation in LSBs from a straight line passing through the endpoints of the DAC transfer function. Error! Reference source not found. ...

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Preliminary Technical Data Digital Crosstalk Digital crosstalk is the glitch impulse transferred to the output of one DAC at midscale in response to a full-scale code change (all 0s to all 1s or vice versa) in the input register of ...

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AD5066 THEORY OF OPERATION D/A SECTION The AD5066 are Quad 16-bit, serial input, voltage output DACs. The parts operate from supply voltages of 2 5.5 V. Data is written to the AD5066 in a 32-bit word format via ...

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Preliminary Technical Data Table 7. Command Definitions Command Description Write to Input Register Update DAC Register Write to Input Register n, update ...

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AD5066 INPUT SHIFT REGISTER The AD5066 input shift register is 32 bits wide (see Figure 8). The first four bits are don’t cares. The next four bits are the command bits (see Table 8), followed by the ...

Page 15

Preliminary Technical Data Table 9. DCEN (Daisy-Chain Enable) Register (DB1 Table 10. 32-Bit Input Shift Register Contents for Daisy-Chain Enable and Reference Set-Up Function MSB DB31 to DB28 DB27 DB26 DB25 Don’t cares Command ...

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AD5066 CLEAR CODE REGISTER The AD5066 has a hardware CLR pin that is an asynchronous clear input. The CLR input is falling edge sensitive. Bringing the CLR line low clears the contents of the input register and the DAC registers ...

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Preliminary Technical Data Table 13. Clear Code Register Clear Code Register DB1 DB0 CR1 CR0 Clears to Code 0 0 0x0000 0 1 0x8000 1 0 0xFFFF operation Table 14. 32-Bit Input Shift Register Contents for Clear ...

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AD5066 MICROPROCESSOR INTERFACING AD5066 to Blackfin® ADSP-BF53X Interface Figure 10 shows a serial interface between the AD5066 and the Black fin ADSP-BF53X microprocessor. The ADSP-BF53X processor family incorporates two dual-channel synchronous serial ports, SPORT1 and SPORT0, for serial and multiprocessor ...

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Preliminary Technical Data APPLICATIONS USING A REFERENCE AS A POWER SUPPLY FOR THE AD5066 Because the supply current required by the AD5066 is extremely low, an alternative option is to use a voltage reference to supply the required voltage to ...

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... AD5066 OUTLINE DIMENSIONS ORDERING GUIDE Model Temperature Range AD5066BRUZ-1 1 −40°C to +105°C AD5066BRUZ-1REEL7 −40°C to +105°C AD5066ARUZ −40°C to +105°C AD5066ARUZ-REEL7 −40°C to +105°C Eval-AD5066 EBZ Pb-free part. ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...

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