AD5641

Data Sheet 2.7 V to 5.5 V, <100 µA, 14-Bit nanoDAC, SPI Interface in LFCSP and SC70 AD5641 FEATURES 6-lead LFCSP and SC70 packages Micropower operation: 100 µA maximum at 5 V Power-down to typically 0.2 µA at 3 V Single 14-bit DAC B version: ±4 LSB INL A version: ±16 LSB INL 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 APPLICATIONS Voltage level setting Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators GENERAL DESCRIPTION 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 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 pla...