AD5667RBRMZ Data Converter IC DAC Dual 16-Bit w/ 5 PPM/oC On-Chip Ref

FEATURES

• Low power, smallest pin-compatible, dual nanoDACs AD5627R/AD5647R/AD5667R
• 12-/14-/16-bit
• On-chip 1.25 V/2.5 V, 5 ppm/°C reference AD5627/AD5667
• 12-/16-bit
• External reference only
• 3 mm x 3 mm LFCSP and 10-lead MSOP
• 2.7 V to 5.5 V power supply
• Guaranteed monotonic by design
• Power-on reset to zero scale
• Per channel power-down
• Hardware LDAC and CLR functions
• I2C-compatible serial interface supports standard (100 kHz),
• fast (400 kHz), and high speed (3.4 MHz) modes
• APPLICATIONS
• Process control
• Data acquisition systems
• Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators

GENERAL DESCRIPTION

The AD5627R/AD5647R/AD5667R, AD5627/AD5667 members of the nanoDAC family are low power, dual, 12-, 14-, 16-bit buffered voltage-out digital-to-analog converters (DACs) with/without on-chip reference. All devices operate from a single 2.7 V to 5.5 V supply, are guaranteed monotonic by design, and have an I2C-compatible serial interface.

The AD5627R/AD5647R/AD5667R have an on-chip reference. The AD5627RBCPZ, AD5647RBCPZ, and AD5667RBCPZ have a 1.25 V, 5 ppm/°C reference, giving a full-scale output range of 2.5 V; the AD5627RBRMZ and AD5667RBRMZ have a 2.5 V, 5 ppm/°C reference, giving a full-scale output range of 5 V. The on-chip reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write. The AD5667 and AD5627 require an external reference voltage to set the output range of the DAC.

The AD5627R/AD5647R/AD5667R, AD5627/AD5667 incorporate a power-on reset circuit that ensures the DAC output powers up to 0 V, and remains there until a valid write takes place.