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AD7664AST Fiches technique(PDF) 1 Page - Analog Devices |
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AD7664AST Fiches technique(HTML) 1 Page - Analog Devices |
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1 / 19 page  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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD7664* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2000 16-Bit, 570 kSPS CMOS ADC FUNCTIONAL BLOCK DIAGRAM SWITCHED CAP DAC 16 CONTROL LOGIC AND CALIBRATION CIRCUITRY CLOCK AD7664 DATA[15:0] BUSY RD CS SER/ PAR OB/ 2C OGND OVDD DGND DVDD AVDD AGND REF REFGND IN INGND PD RESET SERIAL PORT PARALLEL INTERFACE CNVST WARP IMPULSE FEATURES Throughput: 570 kSPS (Warp Mode) 500 kSPS (Normal Mode) INL: 2.5 LSB Max ( 0.0038% of Full-Scale) 16 Bits Resolution with No Missing Codes S/(N+D): 90 dB Typ @ 10 kHz THD: –100 dB Typ @ 10 kHz Analog Input Voltage Range: 0 V to 2.5 V Both AC and DC Specifications No Pipeline Delay Parallel and Serial 5 V/3 V Interface Single 5 V Supply Operation Power Dissipation 97 mW Typical, 21 W @ 100 SPS Power-Down Mode: 7 W Max Package: 48-Lead Quad Flat Pack (LQFP) Pin-to-Pin Compatible Upgrade of the AD7660 APPLICATIONS Data Acquisition Instrumentation Digital Signal Processing Spectrum Analysis Medical Instruments Battery-Powered Systems Process Control GENERAL DESCRIPTION The AD7664 is a 16-bit, 570 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7664 is hardware factory calibrated and is comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity. It features a very high sampling rate mode (Warp) and, for asyn- chronous conversion rate applications, a fast mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. It is fabricated using Analog Devices’ high-performance, 0.6 micron CMOS process, with correspondingly low cost and is available in a 48-lead LQFP with operation specified from –40 °C to +85 °C. PRODUCT HIGHLIGHTS 1. Fast Throughput The AD7664 is a 570 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry. 2. Superior INL The AD7664 has a maximum integral nonlinearity of 2.5 LSBs with no missing 16-bit code. 3. Single-Supply Operation The AD7664 operates from a single 5 V supply and typically dissipates only 97 mW. In impulse mode, its power dissipa- tion decreases with the throughput to, for instance, only 21 µW at a 100 SPS throughput. It consumes 7 µW maximum when in power-down. 4. Serial or Parallel Interface Versatile parallel or 2-wire serial interface arrangement com- patible with both 3 V or 5 V logic. *Patent pending. |
Numéro de pièce similaire - AD7664AST |
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Description similaire - AD7664AST |
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