AD7266BCPZ-REEL Analog Devices Inc, AD7266BCPZ-REEL Datasheet
AD7266BCPZ-REEL
Specifications of AD7266BCPZ-REEL
Related parts for AD7266BCPZ-REEL
AD7266BCPZ-REEL Summary of contents
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FEATURES Dual 12-bit, 3-channel ADC Throughput rate: 2 MSPS Specified for Power consumption 1.5 MSPS with 3 V supplies MSPS with 5 V supplies Pin-configurable ...
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AD7266 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and ...
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SPECIFICATIONS 2 3 MIN MAX MHz MSPS 2 5.25 V; specifications apply using internal reference or ...
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AD7266 Parameter DC Leakage Current Input Capacitance REFERENCE INPUT/OUTPUT 8 Reference Output Voltage Long-Term Stability 2 Output Voltage Hysteresis Reference Input Voltage Range DC Leakage Current Input Capacitance Output Impedance CAP CAP Reference Temperature Coefficient V ...
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TIMING SPECIFICATIONS 5.25 V, internal/external reference = 2 DRIVE Table 2. Parameter Limit MIN MAX ...
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AD7266 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter V to AGND DGND DGND DRIVE V to AGND DRIVE AGND to DGND Analog Input Voltage to AGND Digital Input Voltage to ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS DGND 1 PIN 1 REF SELECT 2 INDICATOR CAP AD7266 AGND 5 TOP VIEW AGND 6 (Not to Scale Figure 2. Pin Configuration ...
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AD7266 Pin No. Mnemonic Description 28 Serial Data Outputs. The data output is supplied to each pin as a serial data stream. The bits are clocked out on the OUT D B falling edge of the SCLK ...
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TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A –60 INTERNAL REFERENCE –70 –80 EXTERNAL REFERENCE –90 –100 –110 100mV p-p SINE WAVE DECOUPLING SINGLE-ENDED MODE –120 0 200 400 600 800 1000 1200 1400 ...
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AD7266 1.0 V DIFFERENTIAL MODE 0.8 POSITIVE DNL 0.6 0.4 POSITIVE INL 0.2 0 –0.2 NEGATIVE INL –0.4 –0.6 NEGATIVE DNL –0.8 –1.0 0 0.5 1.0 1.5 V (V) REF Figure 10. Linearity Error vs. V 12.0 11.5 11.0 V ...
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TERMINOLOGY Differential Nonlinearity (DNL) Differential nonlinearity is the difference between the measured and the ideal 1 LSB change between any two adjacent codes in the ADC. Integral Nonlinearity (INL) Integral nonlinearity is the maximum deviation from a straight line passing ...
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AD7266 The AD7266 is tested using the CCIF standard where two input frequencies near the top end of the input bandwidth are used. In this case, the second-order terms are usually distanced in frequency from the original sine waves, while ...
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THEORY OF OPERATION CIRCUIT INFORMATION The AD7266 is a fast, micropower, dual, 12-bit, single-supply, ADC that operates from a 2 5.25 V supply. When operated from supply, the AD7266 is capable of throughput rates ...
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AD7266 IN IN– Figure 18. Equivalent Analog Input Circuit, Conversion Phase—Switches Open, Track Phase—Switches Closed When no amplifier is used to drive the analog ...
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Differential Mode The AD7266 can have a total of six differential analog input pairs. Differential signals have some benefits over single-ended signals, including noise immunity based on the device’s common-mode rejection and improvements in distortion performance. Figure 23 defines the ...
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AD7266 Using an Op Amp Pair An op amp pair can be used to directly couple a differential signal to one of the analog input pairs of the AD7266. The circuit configurations illustrated in Figure 26 and Figure 27 show ...
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ANALOG INPUT SELECTION The analog inputs of the AD7266 can be configured as single- ended or true differential via the SGL/ DIFF logic pin, as shown in Figure 31. If this pin is tied to a logic low, the analog ...
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AD7266 TRANSFER FUNCTIONS The designed code transitions occur at successive integer LSB values (1 LSB, 2 LSB, and so on). In single-ended mode, the LSB size is V /4096 when the range is used, and the ...
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MODES OF OPERATION The mode of operation of the AD7266 is selected by controlling the (logic) state of the CS signal during a conversion. There are three possible modes of operation: normal mode, partial power- down mode, and full power-down ...
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AD7266 FULL POWER-DOWN MODE This mode is intended for use in applications where throughput rates slower than those in the partial power-down mode are required, as power-up from a full power-down takes substan- tially longer than that from partial power-down. ...
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THE PART BEGINS TO POWER UP SCLK D A OUT D B OUT POWER-UP TIMES As described in detail, the AD7266 has two power-down modes, partial power-down and full power-down. This section deals with the power-up time required ...
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AD7266 SERIAL INTERFACE Figure 41 shows the detailed timing diagram for serial inter- facing to the AD7266. The serial clock provides the conversion clock and controls the transfer of information from the AD7266 during conversion. CS The signal initiates the ...
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MICROPROCESSOR INTERFACING The serial interface on the AD7266 allows the part to be directly connected to a range of many different microprocessors. This section explains how to interface the AD7266 with some of the more common microcontroller and DSP serial ...
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AD7266 AD7266 TO ADSP-BF53x The ADSP-BF53x family of DSPs interface directly to the AD7266 without any glue logic required. The availability of secondary receive registers on the serial ports of the Blackfin® DSPs means only one serial port is necessary ...
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AD7266 TO DSP563xx The connection diagram in Figure 46 shows how the AD7266 can be connected to the ESSI (synchronous serial interface) of the DSP563xx family of DSPs from Motorola. There are two on-board ESSIs, and each is operated in ...
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AD7266 APPLICATION HINTS GROUNDING AND LAYOUT The analog and digital supplies to the AD7266 are independent and separately pinned out to minimize coupling between the analog and digital sections of the device. The printed circuit board (PCB) that houses the ...
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... ROTATED 90° CCW ORDERING GUIDE Model Temperature Range AD7266BCP –40°C to +125°C 1 AD7266BCPZ –40°C to +125°C 1 AD7266BCPZ-REEL7 –40°C to +125°C AD7266BCPZ-REEL 1 –40°C to +125°C 1 AD7266BSUZ –40°C to +125°C 1 AD7266BSUZ-REEL7 –40°C to +125°C 1 AD7266BSUZ-REEL –40°C to +125°C ...
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AD7266 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04603-0-11/06(A) Rev Page ...