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AD5570BRS-REEL データシート(PDF) 1 Page - Analog Devices |
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AD5570BRS-REEL データシート(HTML) 1 Page - Analog Devices |
1 / 24 page True Accuracy, 16-Bit ±12 V/±15 V, Serial Input Voltage Output DAC AD5570 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 or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved. FEATURES Full 16-bit performance 1 LSB max INL and DNL Output voltage range up to ±14 V On-board reference buffers, eliminating the need for a negative reference Controlled output during power-on Temperature range of −40°C to +85°C/−40°C to +125°C Settling time of 10 µs to 0.003% Clear function to 0 V Asynchronous update of outputs (LDAC pin) Power-on reset Serial data output for daisy chaining Data readback facility APPLICATIONS Industrial automation Automatic test equipment Process control Data acquisition systems General-purpose instrumentation FUNCTIONAL BLOCK DIAGRAM VOUT VDD DGND AD5570 REFIN REFGND LDAC SDIN CLR SCLK SYNC PD DAC REGISTER SHIFT REGISTER POWER-DOWN CONTROL LOGIC POWER-ON RESET SDO VSS R AGND AGNDS R R R 16-BIT DAC Figure 1. GENERAL DESCRIPTION The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±12 V up to ±15 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up (when the supply voltages are changing), VOUT is clamped to 0 V via a low impedance path. The AD5570 DAC comes complete with a set of reference buffers. The reference buffers allow a single, positive reference to be used. The voltage on REFIN is gained up and inverted internally to give the positive and negative reference for the DAC core. Having the reference buffers on-chip eliminates the need for external components such as inverters, precision amplifiers, and resistors, thereby reducing the overall solution size and cost. The AD5570 uses a versatile 3-wire interface that is compatible with SPI®, QSPI™, MICROWIRE™, and DSP® interface standards. Data is presented to the part in the format of a 16-bit serial word. Serial data is available on the SDO pin for daisy-chaining purposes. Data readback allows the user to read the contents of the DAC register via the SDO pin. Features on the AD5570 include LDAC, which may be used to update the output of the DAC. The device also has a power- down pin (PD), which allows the DAC to be put into a low power state, and a CLR pin that allows the output to be cleared to 0 V. The AD5570 is available in a 16-lead SSOP package. PRODUCT HIGHLIGHTS 1. 1 LSB maximum INL and DNL. 2. Buffered voltage output up to ±14 V. 3. Output controlled during power-up. 4. On-board reference buffers. 5. Wide temperature range of −40°C to +125°C. |
同様の部品番号 - AD5570BRS-REEL |
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同様の説明 - AD5570BRS-REEL |
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