The AD5641, a member of the nanoDAC® family, is a single, 14-bit, buffered, voltage-out DAC that operates from a single 2.7 V to 5.5 V supply, typically consuming 75 μA at 5 V. The part comes in a tiny LFCSP and SC70 packages. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The AD5641 uses 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 AD5641 is derived from the power supply inputs and, therefore, gives the widest dynamic output range. The part incorporates 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 AD5641 contains a power-down feature that reduces current consumption typically to 0.2 μA at 3 V, and provides software-selectable output loads while in power-down mode. The part is put into power-down mode over the serial interface. The low power consumption of the part in normal operation makes it ideally suited to portable battery-operated equipment. The combination of small package and low power makes this nanoDAC device ideal for level-setting requirements such as generating bias or control voltages in space-constrained and power-sensitive applications.Product Highlights
|Title||Content Type||File Type|
|AD5641: 2.7 V to 5.5 V, <100 µA, 14-Bit nanoDAC, SPI Interface in LFCSP and SC70 Data Sheet (Rev D, 02/2012) (pdf, 554 kB)||Data Sheets|
Voltage Level Setting Requirements in RF Power Control Circuits
by James Caffrey, Analog Devices, Inc. (ECN, 6/1/2004)
Thinking inside the box - the future of converter designs?
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|Digital to Analog Converters ICs Solutions Bulletin (pdf)||Solutions Bulletins|
|Extending the nanoDAC Family||Overview||HTML|
Analog Devices’ 8-Bit to 16-Bit nanoDAC™ Converters
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... Highest performance in the industry’s smallest packaging.
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Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
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