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AD5676BRUZ データシート(PDF) 1 Page - Analog Devices |
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AD5676BRUZ データシート(HTML) 1 Page - Analog Devices |
1 / 28 page Octal, 16-Bit nanoDAC+ with SPI Interface Data Sheet AD5676 Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©2014–2015 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES High performance High relative accuracy (INL): ±3 LSB maximum at 16 bits Total unadjusted error (TUE): ±0.14% of FSR maximum Offset error: ±1.5 mV maximum Gain error: ±0.06% of FSR maximum Wide operating ranges −40°C to +125°C temperature range 2.7 V to 5.5 V power supply Easy implementation User selectable gain of 1 or 2 (GAIN pin/gain bit) Reset to zero scale or midscale (RSTSEL pin) 1.8 V logic compatibility 50 MHz SPI with readback or daisy chain Robust 2 kV HBM and 1.5 kV FICDM ESD rating 20-lead, TSSOP and LFCSP RoHS-compliant packages APPLICATIONS Optical transceivers Base station power amplifiers Process control (PLC input/output cards) Industrial automation Data acquisition systems GENERAL DESCRIPTION The AD5676 is a low power, octal, 16-bit buffered voltage output digital-to-analog converter (DAC). The device includes a gain select pin, giving a full-scale output of VREF (gain = 1) or 2 × VREF (gain = 2). The AD5676 DAC operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5676 is available in 20-lead TSSOP and LFCSP packages. The internal power-on reset circuit and the RSTSEL pin of the AD5676 ensure that the output DACs power up to zero scale or midscale and then remain there until a valid write takes place. The AD5676 contains a per channel power-down mode that typically reduces the current consumption of the device to 1 µA. The AD5676 employs a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz, and contains a VLOGIC pin intended for 1.8 V to 5.5 V logic. Table 1. Octal nanoDAC+® Devices Interface Reference 16-Bit 12-Bit SPI Internal AD5676R AD5672R External AD5676 Not applicable I2C Internal AD5675R AD5671R External AD5675 Not applicable PRODUCT HIGHLIGHTS 1. High relative accuracy (INL) 16-bit: ±3 LSB maximum. 2. −40°C to +125°C temperature range. 3. 20-lead, TSSOP and LFCSP RoHS-compliant packages. FUNCTIONAL BLOCK DIAGRAM INPUT REGISTER INPUT REGISTER POWER-DOWN LOGIC GAIN x1/x2 POWER-ON RESET DAC REGISTER STRING DAC 0 STRING DAC 7 DAC REGISTER AD5676 GAIN GND RSTSEL SDO SDI LDAC SYNC SCLK RESET INPUT REGISTER STRING DAC 1 DAC REGISTER INPUT REGISTER STRING DAC 2 DAC REGISTER INPUT REGISTER STRING DAC 3 DAC REGISTER INPUT REGISTER STRING DAC 4 DAC REGISTER INPUT REGISTER STRING DAC 5 DAC REGISTER INPUT REGISTER STRING DAC 6 DAC REGISTER BUFFER VREF VOUT0 BUFFER BUFFER BUFFER BUFFER BUFFER BUFFER BUFFER VOUT1 VOUT2 VOUT3 VOUT4 VOUT5 VOUT6 VOUT7 VDD VLOGIC INTERFACE LOGIC Figure 1. |
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