AD7653ACP Analog Devices Inc, AD7653ACP Datasheet
AD7653ACP
Specifications of AD7653ACP
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AD7653ACP Summary of contents
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FEATURES Throughput: 1 MSPS (Warp mode) 800 kSPS (Normal mode) 666 kSPS (Impulse mode) 16-bit resolution Analog input voltage range 2 pipeline delay Parallel and serial 5 V/3 V interface ® SPI /QSPI ...
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AD7653 TABLE OF CONTENTS Specifications..................................................................................... 3 Timing Specifications....................................................................... 5 Absolute Maximum Ratings............................................................ 7 Pin Configuration and Function Descriptions............................. 8 Definitions of Specifications ......................................................... 11 Typical Performance Characteristics ........................................... 12 Circuit Information ........................................................................ 15 Converter Operation.................................................................. 15 Typical Connection Diagram.................................................... 17 ...
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SPECIFICATIONS Table 2. –40°C to +85°C, AVDD = DVDD = 5 V, OVDD = 2 5.25 V, unless otherwise noted Parameter RESOLUTION ANALOG INPUT Voltage Range Operating Input Voltage Analog Input CMRR Input Current 1 Input Impedance THROUGHPUT ...
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AD7653 Parameter DIGITAL INPUTS Logic Levels DIGITAL OUTPUTS 5 Data Format Pipeline Delay POWER SUPPLIES Specified Performance AVDD DVDD OVDD 8 Operating Current 9 AVDD AVDD 10 ...
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TIMING SPECIFICATIONS Table 3. –40°C to +85°C, AVDD = DVDD = 5 V, OVDD = 2 5.25 V, unless otherwise noted Parameter Refer to Figure 26 and Figure 27 Convert Pulse Width Time between Conversions (Warp Mode/Normal Mode/Impulse ...
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AD7653 Table 4. Serial Clock Timings in Master Read after Convert DIVSCLK[1] DIVSCLK[0] SYNC to SCLK First Edge Delay Minimum Internal SCLK Period Minimum Internal SCLK Period Maximum Internal SCLK HIGH Minimum Internal SCLK LOW Minimum SDOUT Valid Setup Time ...
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ABSOLUTE MAXIMUM RATINGS Table 5. AD7653 Absolute Maximum Ratings Parameter TEMP ,REF, REFBUFIN, INGND, REFGND to AGND Ground Voltage Differences AGND, DGND, OGND Supply Voltages AVDD, DVDD, OVDD AVDD to DVDD, AVDD to OVDD DVDD to ...
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AD7653 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions 1 Pin No. Mnemonic Type 1, 36, AGND P 41 AVDD BYTESWAP DI 5 OB/ WARP DI 7 IMPULSE ...
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Pin No. Mnemonic Type DI/O INVSCLK DI/O RDC/SDIN 17 OGND P 18 OVDD P 19 DVDD P 20 DGND SDOUT DI/O SCLK 23 D10 or ...
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AD7653 Pin No. Mnemonic Type 1 37 REF AI/O 38 REFGND AI 39 INGND TEMP AO 46 REFBUFIN AI/O 47 PDREF DI 48 PDBUF Analog Input; AI/O = Bidirectional Analog; AO ...
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DEFINITIONS OF SPECIFICATIONS Integral Nonlinearity Error (INL) Linearity error refers to the deviation of each individual code from a line drawn from negative full scale through positive full scale. The point used as negative full scale occurs ½ LSB before ...
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AD7653 TYPICAL PERFORMANCE CHARACTERISTICS –1 –2 –3 –4 0 16384 32768 CODE Figure 5. Integral Nonlinearity vs. Code 140000 114641 120000 112516 100000 80000 60000 40000 15906 20000 679 7FFB 7FFC 7FFD ...
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SFDR –60 –70 –80 –90 THD –100 THIRD HARMONIC –110 SECOND HARMONIC –120 1 10 100 FREQUENCY (kHz) Figure 11. THD, Harmonics, and SFDR vs. Frequency SNR 88 87 S/[N+ ...
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AD7653 2.5020 2.5019 2.5018 2.5017 2.5016 2.5015 2.5014 2.5013 2.5012 2.5011 2.5010 2.5009 2.5008 –40 – TEMPERATURE (°C) Figure 17. Typical Reference Output Voltage vs. Temperature –30 ...
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CIRCUIT INFORMATION IN REF REFGND 32,768C INGND The AD7653 is a very fast, low power, single supply, precise 16-bit analog-to-digital converter (ADC). The AD7653 features different modes to optimize performance according to the application. In Warp mode, the part can ...
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AD7653 Transfer Functions Using the OB/ 2C digital input, the AD7653 offers two output codings: straight binary and twos complement. The LSB size is V /65536, which is about 38.15 µV. The AD7653’s ideal REF transfer characteristic is shown in ...
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TYPICAL CONNECTION DIAGRAM Figure 22 shows a typical connection diagram for the AD7653. Analog Input Figure 23 shows an equivalent circuit of the input structure of the AD7653. The two diodes, D1 and D2, provide ESD protection for the analog ...
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AD7653 Voltage Reference Input The AD7653 allows the choice of either a very low temperature drift internal voltage reference or an external 2.5 V reference. Unlike many ADCs with internal references, the internal reference of the AD7653 provides excellent performance ...
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POWER DISSIPATION VS. THROUGHPUT Operating currents are very low during the acquisition phase, allowing significant power savings when the conversion rate is reduced (see F igure 25 ). This power savings depends on the mode used. In Impulse mode, the ...
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AD7653 DIGITAL INTERFACE The AD7653 has a versatile digital interface; it can be interfaced with the host system by using either a serial or a parallel inter- face. The serial interface is multiplexed on the parallel data bus. The AD7653 ...
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MASTER SERIAL INTERFACE Internal Clock The AD7653 is configured to generate and provide the serial data clock SCLK when the EXT/ INT pin is held LOW. The AD7653 also generates a SYNC signal to indicate to the host when the ...
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AD7653 SLAVE SERIAL INTERFACE External Clock The AD7653 is configured to accept an externally supplied serial data clock on the SCLK pin when the EXT/ INT pin is held HIGH. In this mode, several methods can be used to read ...
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External Discontinuous Clock Data Read After Conversion Though the maximum throughput cannot be achieved using this mode the most recommended of the serial slave modes. Figure 34 shows the detailed timing diagrams of this method. After a conversion ...
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AD7653 MICROPROCESSOR INTERFACING The AD7653 is ideally suited for traditional dc measurement applications supporting a microprocessor, and for ac signal processing applications interfacing to a digital signal processor. The AD7653 is designed to interface either with a parallel 8-bit or ...
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APPLICATION HINTS BIPOLAR AND WIDER INPUT RANGES In some applications desirable to use a bipolar or wider analog input range such as ±10 V, ± Although the AD7653 has only one ...
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... SEATING PLANE ORDERING GUIDE Model AD7653AST AD7653ASTRL AD7653ACP AD7653ACPRL 1 EVAL-AD7653CB 2 EVAL-CONTROL BRD2 1 This board can be used as a standalone evaluation board or in conjunction with the EVAL-CONTROL BRD2 for evaluation/demonstration purposes. 2 This board allows control and communicate with all Analog Devices evaluation boards ending in the CB designators. ...
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NOTES Rev Page AD7653 ...
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AD7653 NOTES © 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C02966–0–9/03(A) Rev Page ...