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AD1385KD bảng dữ liệu(PDF) 1 Page - Analog Devices |
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AD1385KD bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 20 page FUNCTIONAL BLOCK DIAGRAM 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 16-Bit 500 kHz Wide Temperature Range Sampling ADC AD1385 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 FEATURES 16-Bit Resolution 500 kHz Sampling Rate Differential Linearity Autocalibration Specified over –55 C to +125 C Range SNR 90 dB @ 100 kHz (min) THD –88 dB @ 100 kHz (min) 0.0006% FSR DNL (typ) 0.0015% FSR INL (typ) No Missing Codes 5, 10 V Bipolar Input Ranges Zero Offset Autocalibration APPLICATIONS Medical Imaging CAT Magnetic Resonance Radar Vibration Analysis Parametric Measurement Unit (ATE) Digital Storage Oscilloscopes Waveform Recorders Analytical Instruments PRODUCT DESCRIPTION The AD1385 is a complete 500 kHz, 16-bit, sampling analog- to-digital converter contained in a single package. Its differential linearity autocalibration feature allows this high resolution, high speed converter to offer outstanding noise and distortion perfor- mance, as well as excellent INL and DNL specifications, over the full military temperature range. Autocalibration effectively eliminates DNL drift over temperature. The AD1385 architecture includes a low noise, low distortion track/hold, a three pass digitally corrected subranging ADC, and linearity calibration circuitry. A complete linearity calibration requires only 15 ms. Precision thin-film resistors and a propri- etary DAC contribute to the part’s outstanding dynamic and static performance. The AD1385 uses four power supplies, ±5 V and ±15 V, and an external 10 MHz clock. Power dissipation is nominally 2.76 W. Two user selectable bipolar input ranges, ±5 V and ±10 V, are provided. Careful attention to grounding and a single package make it easy to design PCBs to achieve specified performance. The AD1385’s pinout is nearly identical to that of the AD1382, a factory calibrated 16-bit, 500 kHz SADC. Just two additional connections, to enable and monitor autocalibration, are required. This commonality provides an easy upgrade path to extend sys- tem performance and operating temperature range. |
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