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AD5667RBRMZ-2REEL7 датащи(PDF) 1 Page - Analog Devices |
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AD5667RBRMZ-2REEL7 датащи(HTML) 1 Page - Analog Devices |
1 / 30 page Dual, 12-/14-/16-Bit nanoDACs® with 5ppm/°C On-Chip Ref, I2C Interface Preliminary Technical Data AD5627R/AD5647R/AD5667R AD5627/AD5667 Rev. PrA 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 Low power, smallest pin-compatible, dual nanoDACs AD5627R/AD5647R/AD5667R 12-/14-/16- bit On-chip 1.25 V/2.5 V, 5 ppm/°C reference AD5625/AD5665 12-/16- bit External reference only 3 mm x 3 mm LFCSP and 10-lead MSOP 2.7 V to 5.5 V power supply Guaranteed monotonic by design Power-on reset to zero scale Per channel power-down I2C-compatible serial interface supports standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators ADDR SCL SDA INPUT REGISTER INPUT REGISTER DAC REGISTER DAC REGISTER BUFFER BUFFER VOUTA VOUTB VDD GND VREFIN/VREFOUT AD5627R/AD5647R/AD5667R POWER-DOWN LOGIC STRING DAC B STRING DAC A LDAC CLR POWER-ON RESET INTERFACE LOGIC 1.25V/2.5V REF ADDR SCL SDA INPUT REGISTER INPUT REGISTER DAC REGISTER DAC REGISTER BUFFER BUFFER VOUTA VOUTB VDD GND VREFIN AD5627/AD5667 POWER-DOWN LOGIC STRING DAC B STRING DAC A LDAC CLR POWER-ON RESET INTERFACE LOGIC Figure 1. Functional Block Diagrams GENERAL DESCRIPTION The AD5627R/AD5647R/AD5667R, AD5627/AD5667, members of the nanoDAC family, are low power, dual, 12-, 14-, 16-bit buffered voltage-out DACs with/without on-chip reference. All devices operate from a single 2.7 V to 5.5 V supply, are guaranteed monotonic by design and have an I2C- compatible serial interface . The AD5627R/AD5647R/AD5667R have an on-chip reference. The AD56x7RBCPZ have a 1.25 V, 5 ppm/°C reference, giving a full-scale output range of 2.5 V; the AD56x7RBRUZ have a 2.5 V, 5 ppm/°C reference giving a full-scale output range of 5 V. The on-chip reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write. The AD5667 and AD5627 require an external reference voltage to set the output range of the DAC The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V and remains there until a valid write takes place. The part contains a per-channel power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power-down mode. The low power consumption of this part in normal operation makes it ideally suited to portable battery-operated equipment. The on-chip precision output amplifier enables rail-to-rail output swing. The AD5627R/AD5647R/AD5667R, AD5627/AD5667 use a 2- wire I2C-compatible serial interface that operates in standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes. Table 1. Related Devices Part No. Description AD5663 2.7 V to 5.5 V, Dual 16-bit DAC, external reference, SPI interface AD5623R/AD5643R/AD5663R 2.7 V to 5.5 V, Dual 12-, 14-, 16- bit DACs, internal reference, SPI interface AD5625R/AD5645R/AD5665R AD5625/AD5665 2.7 V to 5.5 V, quad 12-, 14- 16- bit DACs, with/without internal reference, I2C interface |
Аналогичный номер детали - AD5667RBRMZ-2REEL7 |
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Аналогичное описание - AD5667RBRMZ-2REEL7 |
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