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AD7660 Datasheet(PDF) 1 Page - Analog Devices |
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AD7660 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 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 AD7660* 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, 100 kSPS CMOS ADC FUNCTIONAL BLOCK DIAGRAM SWITCHED CAP DAC 16 CONTROL LOGIC AND CALIBRATION CIRCUITRY CLOCK AD7660 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 FEATURES Throughput: 100 kSPS INL: 3 LSB Max ( 0.0046% of Full-Scale) 16 Bits Resolution with No Missing Codes S/(N+D): 87 dB Min, 90 dB Typ @ 10 kHz THD: –96 dB Max @ 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 21 mW Typical Power Dissipation, 21 W @ 100 SPS Power-Down Mode: 7 W Max Package: 48-Lead Quad Flatpack (LQFP) Pin-to-Pin Compatible with the AD7664 APPLICATIONS Data Acquisition Battery-Powered Systems PCMCIA Instrumentation Automatic Test Equipment Scanners Medical Instruments Process Control GENERAL DESCRIPTION The AD7660 is a 16-bit, 100 kSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. The part contains an internal conversion clock, error cor- rection circuits, and both serial and parallel system interface ports. The AD7660 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 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 AD7660 is a 100 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry. 2. Superior INL The AD7660 has a maximum integral nonlinearity of 3 LSBs with no missing 16-bit code. 3. Single-Supply Operation The AD7660 operates from a single 5 V supply and only dissipates 21 mW typical. Its power dissipation 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. |
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