AD7390 +3/+5 Volt Serial-Input Micropower 12-Bit DAC

The AD7390/AD7391 family of 10- and 12-bit voltage-output digital-to-analog converters are designed to operate from a single +3 volt supply. Built using a CBCMOS process, these monolithic DACs offer the user low cost, and ease-of-use in single-supply +3 V volt systems. Operation is guaranteed over the supply voltage range of +2.7 V to +5.5 V consuming less than 100 µA making this device ideal for battery operated applications.

The full-scale voltage output is determined by the external reference input voltage applied. The rail-to-rail REFIN to DACOUT allows for a full-scale voltage set equal the positive supply VDD or any value in between.

A doubled-buffered serial-data interface offers high-speed, three-wire, SPI and microcontroller compatible inputs using data in (SDI), clock (CLK) and chip select (CS/LD) pins. Additionally, a CLR input sets the output to zero scale at power on or upon user demand.

Both parts are offered in the same pin out to allow the user to select the amount of resolution appropriate for their application without circuit card redesign.

The AD7390/AD7391 are specified over the extended industrial (-40°C to +85°C) temperature range. AD7390/AD7391 are available in plastic DIP, and low profile 1.75 mm height SO-8 surface mount packages. For ultracompact applications the thin 1.1 mm TSSOP-8 package will be available.

Features and Benefits
  • Micropower - 100 µA
  • Single Supply - 2.7 V to 5.5 V Operation
  • Compact 1.75 mm Height SO-8 Package and 1.1 mm Height TSSOP-8 Package
  • AD7390 - 12-Bit Resolution
    AD7391 - 10-Bit Resolution
  • SPI and QSPI Serial Interface Compatible with Schmitt Trigger Inputs
Digital to Analog Converters
Data Sheets
Documentnote
AD7390/AD7391: 3 V Serial-Input Micropower 10-Bit and 12-Bit DAC Data Sheet (Rev. A)PDF 198 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7390ANZ Production8 ld PDIPOTH 50-40 to 85C6.425.46Y
AD7390AR Production8 ld SOICOTH 98-40 to 85C00N
AD7390ARZ Production8 ld SOICOTH 98-40 to 85C5.674.82Y
AD7390ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C04.82Y
Reference Materials
AD7390/AD7391: 3 V Serial-Input Micropower 10-Bit and 12-Bit DAC Data Sheet (Rev. A) ad7390
Digital to Analog Converters ICs Solutions Bulletin ad5590