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AD5611ACPZ-RL7 Folha de dados(PDF) 1 Page - Analog Devices |
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AD5611ACPZ-RL7 Folha de dados(HTML) 1 Page - Analog Devices |
1 / 24 page 2.7 V to 5.5 V, <100 μA, 8-/10-/12-Bit nanoDAC, SPI Interface in LFCSP and SC70 Data Sheet AD5601/AD5611/AD5621 Rev. G 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 ©2005–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES 6-lead SC70 and LFCSP packages Micropower operation: 100 µA maximum at 5 V Power-down typically to 0.2 µA at 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 Low power serial interface with Schmitt-triggered inputs On-chip output buffer amplifier, rail-to-rail operation SYNC interrupt facility Minimized zero-code error AD5601 buffered 8-bit DAC B version: ±0.5 LSB INL AD5611 buffered 10-bit DAC B version: ±0.5 LSB INL A version: ±4 LSB INL AD5621 buffered 12-bit DAC B version: ±1 LSB INL A version: ±6 LSB INL APPLICATIONS Voltage level setting Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators GENERAL DESCRIPTION The AD5601/AD5611/AD5621, members of the nanoDAC® family, are single, 8-/10-/12-bit, buffered voltage output DACs that operate from a single 2.7 V to 5.5 V supply, consuming typically 75 µA at 5 V. The parts come in tiny LFCSP and SC70 packages. Their on-chip precision output amplifier allows rail- to-rail output swing to be achieved. The AD5601/AD5611/ AD5621 utilize a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards. The reference for the AD5601/AD5611/AD5621 is derived from the power supply inputs and, therefore, gives the widest dynamic output range. The parts incorporate a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write to the device takes place. The AD5601/AD5611/AD5621 contain a power-down feature that reduces current consumption to typically 0.2 µA at 3 V. FUNCTIONAL BLOCK DIAGRAM Figure 1. Table 1. Related Devices Part Number Description AD5641 2.7 V to 5.5 V, <100 µA, 14-bit nanoDAC in SC70 and LFCSP packages They also provide 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 these parts in normal operation makes them ideally suited to portable battery-operated equip- ment. The combination of small package and low power makes these nanoDAC devices ideal for level-setting requirements, such as generating bias or control voltages in space-constrained and power-sensitive applications. PRODUCT HIGHLIGHTS 1. Available in 6-lead LFCSP and SC70 packages. 2. Low power, single-supply operation. The AD5601/ AD5611/AD5621 operate from a single 2.7 V to 5.5 V supply with a maximum current consumption of 100 µA, 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 is derived from the power supply. 5. High speed serial interface with clock speeds up to 30 MHz. Designed for very low power consumption. The interface powers up only during a write cycle. 6. Power-down capability. When powered down, the DAC typically consumes 0.2 µA at 3 V. Power-on reset with brownout detection. AD5601/AD5611/AD5621 VDD VOUT GND POWER-ON RESET DAC REGISTER 12-/10-/8-BIT DAC INPUT CONTROL LOGIC POWER-DOWN CONTROL LOGIC OUTPUT BUFFER RESISTOR NETWORK REF(+) SCLK SDIN SYNC |
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