Datasheet AD7652 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 16-Bit 500 kSPS PulSAR® Unipolar ADC with Ref |
| 页数 / 页 | 29 / 1 — FEATURES. FUNCTIONAL BLOCK DIAGRAM. Throughput: 500 kSPS. REFBUFIN REF … |
| 文件格式/大小 | PDF / 804 Kb |
| 文件语言 | 英语 |
FEATURES. FUNCTIONAL BLOCK DIAGRAM. Throughput: 500 kSPS. REFBUFIN REF REFGND. DVDD. DGND. 16-bit resolution. AGND. OVDD
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文件文字版本
16-Bit 500 kSPS PulSARTM Unipolar ADC with Reference AD7652
FEATURES FUNCTIONAL BLOCK DIAGRAM Throughput: 500 kSPS REFBUFIN REF REFGND DVDD DGND 16-bit resolution AGND OVDD Analog input voltage range: 0 V to 2.5 V AD7652 AVDD SERIAL OGND No pipeline delay REF PORT Parallel and serial 5 V/3 V interface 16 IN SWITCHED DATA[15:0] SPI®/QSPITM/MICROWIRETM/DSP compatible CAP DAC INGND BUSY Single 5 V supply operation PARALLEL PDREF INTERFACE RD Power dissipation PDBUF CLOCK CS 65 mW typ, 130 µW @ 1 kSPS without REF PD CONTROL LOGIC AND SER/PAR RESET 80 mW typ with REF CALIBRATION CIRCUITRY OB/2C 48-lead LQFP and 48-lead LFCSP packages BYTESWAP Pin-to-pin compatible with PulSAR ADCs CNVST
02965-0-001
APPLICATIONS
Figure 1. Functional Block Diagram
Data acquisition Instrumentation Table 1. PulSAR Selection Digital signal processing 800– Type/kSPS 100–250 500–570 1000 Spectrum analysis
Pseudo- AD7651 AD7650/AD7652 AD7653
Medical instruments
Differential AD7660/AD7661 AD7664/AD7666 AD7667
Battery-powered systems
True Bipolar AD7663 AD7665 AD7671
Process control
True AD7675 AD7676 AD7677 Differential
GENERAL DESCRIPTION
18-Bit AD7678 AD7679 AD7674 The AD7652 is a 16-bit, 500 kSPS, charge redistribution SAR Multichannel/ AD7654 analog-to-digital converter that operates from a single 5 V Simultaneous AD7655 power supply. The part contains a high speed 16-bit sampling ADC, an internal conversion clock, internal reference, error
PRODUCT HIGHLIGHTS
correction circuits, and both serial and parallel system interface 1. Fast Throughput. ports. The AD7652 is a 500 kSPS, charge redistribution, 16-bit The AD7652 is fabricated using Analog Devices’ high perform- SAR ADC with internal error correction circuitry. ance, 0.6 micron CMOS process, with correspondingly low cost, 2. Internal Reference. and is available in a 48-lead LQFP and a tiny 48-lead LFCSP The AD7652 has an internal reference with a typical with operation specified from –40°C to +85°C. temperature drift of 7 ppm/°C. 3. Single-Supply Operation. The AD7652 operates from a single 5 V supply. Its power dissipation decreases with throughput. 4. Serial or Parallel Interface. Versatile parallel or 2-wire serial interface arrangement is compatible with both 3 V and 5 V logic.
Rev. 0 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. or otherwise under any patent or patent rights of Analog Devices. Trademarks and Tel: 781.329.4700 www.analog.com registered trademarks are the property of their respective owners. Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION AND FUNCTION DESCRIPTIONS DEFINITIONS OF SPECIFICATIONS TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION TYPICAL CONNECTION DIAGRAM POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE SLAVE SERIAL INTERFACE MICROPROCESSOR INTERFACING APPLICATION HINTS BIPOLAR AND WIDER INPUT RANGES LAYOUT EVALUATING THE AD7652’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE
FEATURES FUNCTIONAL BLOCK DIAGRAM Throughput: 500 kSPS REFBUFIN REF REFGND DVDD DGND 16-bit resolution AGND OVDD Analog input voltage range: 0 V to 2.5 V AD7652 AVDD SERIAL OGND No pipeline delay REF PORT Parallel and serial 5 V/3 V interface 16 IN SWITCHED DATA[15:0] SPI®/QSPITM/MICROWIRETM/DSP compatible CAP DAC INGND BUSY Single 5 V supply operation PARALLEL PDREF INTERFACE RD Power dissipation PDBUF CLOCK CS 65 mW typ, 130 µW @ 1 kSPS without REF PD CONTROL LOGIC AND SER/PAR RESET 80 mW typ with REF CALIBRATION CIRCUITRY OB/2C 48-lead LQFP and 48-lead LFCSP packages BYTESWAP Pin-to-pin compatible with PulSAR ADCs CNVST
02965-0-001
APPLICATIONS
Figure 1. Functional Block Diagram
Data acquisition Instrumentation Table 1. PulSAR Selection Digital signal processing 800– Type/kSPS 100–250 500–570 1000 Spectrum analysis
Pseudo- AD7651 AD7650/AD7652 AD7653
Medical instruments
Differential AD7660/AD7661 AD7664/AD7666 AD7667
Battery-powered systems
True Bipolar AD7663 AD7665 AD7671
Process control
True AD7675 AD7676 AD7677 Differential
GENERAL DESCRIPTION
18-Bit AD7678 AD7679 AD7674 The AD7652 is a 16-bit, 500 kSPS, charge redistribution SAR Multichannel/ AD7654 analog-to-digital converter that operates from a single 5 V Simultaneous AD7655 power supply. The part contains a high speed 16-bit sampling ADC, an internal conversion clock, internal reference, error
PRODUCT HIGHLIGHTS
correction circuits, and both serial and parallel system interface 1. Fast Throughput. ports. The AD7652 is a 500 kSPS, charge redistribution, 16-bit The AD7652 is fabricated using Analog Devices’ high perform- SAR ADC with internal error correction circuitry. ance, 0.6 micron CMOS process, with correspondingly low cost, 2. Internal Reference. and is available in a 48-lead LQFP and a tiny 48-lead LFCSP The AD7652 has an internal reference with a typical with operation specified from –40°C to +85°C. temperature drift of 7 ppm/°C. 3. Single-Supply Operation. The AD7652 operates from a single 5 V supply. Its power dissipation decreases with throughput. 4. Serial or Parallel Interface. Versatile parallel or 2-wire serial interface arrangement is compatible with both 3 V and 5 V logic.
Rev. 0 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. or otherwise under any patent or patent rights of Analog Devices. Trademarks and Tel: 781.329.4700 www.analog.com registered trademarks are the property of their respective owners. Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION AND FUNCTION DESCRIPTIONS DEFINITIONS OF SPECIFICATIONS TYPICAL PERFORMANCE CHARACTERISTICS CIRCUIT INFORMATION CONVERTER OPERATION TYPICAL CONNECTION DIAGRAM POWER DISSIPATION VERSUS THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE SLAVE SERIAL INTERFACE MICROPROCESSOR INTERFACING APPLICATION HINTS BIPOLAR AND WIDER INPUT RANGES LAYOUT EVALUATING THE AD7652’S PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE