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AD7674 Datasheet(PDF) 1 Page - Analog Devices |
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AD7674 Datasheet(HTML) 1 Page - Analog Devices |
1 / 32 page ![]() 16-Bit, 250 kSPS, Unipolar/Bipolar Programmable Input PulSAR® ADC AD7610 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. FEATURES Multiple pins/software programmable input ranges: 5 V, 10 V, ±5 V, ±10 V Pins or serial SPI®-compatible input ranges/mode selection Throughput: 250 kSPS 16-bit resolution with no missing codes INL: ±0.75 LSB typ, ±1.5 LSB max (±23 ppm of FSR) SNR: 94 dB @ 2 kHz iCMOS® process technology 5 V internal reference: typical drift 3 ppm/°C; On-chip temperature sensor No pipeline delay (SAR architecture) Parallel (16- or 8-bit bus) and serial 5 V/3.3 V interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible Power dissipation 90 mW @ 250 kSPS 10 mW @ 1 kSPS 48-lead LQFP and LFCSP (7 mm × 7 mm) packages APPLICATIONS Process control Medical instruments High speed data acquisition Digital signal processing Instrumentation Spectrum analysis ATE FUNCTIONAL BLOCK DIAGRAM 16 CLOCK AD7610 DGND DVDD AVDD AGND REF REFGND IN+ PD RESET CNVST PDBUF REFBUFIN PDREF REF TEMP D[15:0] BUSY RD CS OB/2C OGND OVDD BYTESWAP SER/PAR REF AMP SWITCHED CAP DAC VCC VEE BIPOLAR TEN IN– SERIAL CONFIGURATION PORT PARALLEL INTERFACE SERIAL DATAPORT CONTROL LOGIC AND CALIBRATION CIRCUITRY Figure 1. GENERAL DESCRIPTION The AD7610 is a 16-bit charge redistribution successive approxi- mation register (SAR), architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.’s iCMOS high voltage process. The device is configured through hardware or via a dedicated write only serial configuration port for input range and operating mode. The AD7610 contains a high speed 16-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and both serial and parallel system interface ports. A falling edge on CNVST samples the analog input on IN+ with respect to a ground sense, IN−. The AD7610 features four different analog input ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V. Power consumption is scaled linearly with throughput. The device is available in Pb-free 48-lead, low- profile quad flat package (LQFP) and a lead frame chip-scale (LFCSP_VQ) package. Operation is specified from −40°C to +85°C. Table 1. 48-Lead 14-/16-/18-Bit PulSAR Selection Type 100 kSPS to 250 kSPS 500 kSPS to 570 kSPS 800 kSPS to 1000 kSPS >1000 kSPS Pseudo Differential AD7651 AD7660 AD7661 AD7650 AD7652 AD7664 AD7666 AD7653 AD7667 True Bipolar AD7610 AD7663 AD7665 AD7612 AD7671 AD7951 True Differential AD7675 AD7676 AD7677 AD7621 AD7622 AD7623 18-Bit, True Differential AD7678 AD7679 AD7674 AD7641 AD7643 Multichannel/ Simultaneous AD7654 AD7655 |
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