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AD5612BKSZ-2500RL7 Datenblatt(PDF) 1 Page - Analog Devices |
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AD5612BKSZ-2500RL7 Datenblatt(HTML) 1 Page - Analog Devices |
1 / 24 page 2.7 V to 5.5 V, <100 μA, 8-/10-/12-Bit nanoDACs® with I2C®-Compatible Interface, Tiny SC70 Package AD5602/AD5612/AD5622 Rev. B 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 Single 8-, 10-, 12-bit DACs, 2 LSB INL 6-lead SC70 package Micropower operation: 100 μA max @ 5 V Power-down to <150 nA @ 3 V 2.7 V to 5.5 V power supply Guaranteed monotonic by design Power-on reset to 0 V with brownout detection 3 power-down functions I2C-compatible serial interface supports standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes On-chip output buffer amplifier, rail-to-rail operation APPLICATIONS Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators FUNCTIONAL BLOCK DIAGRAM AD5602/AD5612/AD5622 VDD VOUT GND POWER-ON RESET DAC REGISTER 8-/10-/12-BIT DAC INPUT CONTROL LOGIC POWER-DOWN CONTROL LOGIC OUTPUT BUFFER RESISTOR NETWORK REF(+) SCL SDA ADDR Figure 1. Table 1. Related Devices Part No. Description AD5601/AD5611/AD5621 2.7 V to 5.5 V, <100 μA, 8-, 10-, 12-bit nanoDAC with SPI® interface in a tiny SC70 package GENERAL DESCRIPTION The AD5602/AD5612/AD5622, members of the nanoDAC family, are single 8-, 10-, 12-bit buffered voltage-out DACs that operate from a single 2.7 V to 5.5 V supply, consuming <100 μA at 5 V. These DACs come in tiny SC70 packages. Each DAC contains an on-chip precision output amplifier that allows rail- to-rail output swing to be achieved. The AD5602/AD5612/AD5622 use a 2-wire I2C-compatible serial interface that operates in standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes. The references for AD5602/AD5612/AD5622 are derived from the power supply inputs to give the widest dynamic output range. Each 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 to the device. The parts contain a power-down feature that reduces the current consumption of the devices to <150 nA at 3 V and provides software-selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. The low power consumption of the AD5602/AD5612/AD5622 in normal operation makes them ideally suited for use in portable battery-operated equipment. The typical power consumption is 0.4 mW at 5 V. PRODUCT HIGHLIGHTS 1. Available in a 6-lead SC70 package. 2. Maximum 100 μA power consumption, single-supply operation. These parts operate from a single 2.7 V to 5.5 V supply, typically consuming 0.2 mW at 3 V and 0.4 mW at 5 V, making them ideal for battery-powered applications. 3. The on-chip output buffer amplifier allows the output of the DAC to swing rail-to-rail with a typical slew rate of 0.5 V/μs. 4. Reference derived from the power supply. 5. Standard, fast, and high speed mode I2C interface. 6. Designed for very low power consumption. 7. Power-down capability. When powered down, the DAC typically consumes <150 nA at 3 V. 8. Power-on reset and brownout detection. |
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