AD5040

Features:

Single 14/16-Bit DAC, 1 Lsb inl.
1.8 Volt Digital Interface Capability
Power-On-Reset to Zero Volts/Mid Scale
Three Power-Down Functions
Low Power Serial Interface with Schmitt-
Triggered Inputs
8-Lead Sot23
Low Power Operation
Fast Settling.
Low Glitch on Powerup.





Application

Process Control
Data Acquisition Systems
Portable Battery Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators




Pinout








Specifications






Description

The AD5040, a member of the nanoDAC? family, is a single full accurate 14-bit buffered voltage out DAC in a SOT-23

By combining a 14-bit DAC and high performance output buffer in

The AD5040/AD5060, members of the nanoDAC^TM family,are single 14/16-bit buffered voltage out DACs. Both parts areavailable in a 8ld Sot23. The AD5040 can be operated from 2.7-5.5V and the AD5060 can be operated at 3V/5V.The part utilizes a versatile three-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI™, QSPI™, MICROWIRE™ and DSP interface standards.

The reference for the AD5040/AD5060 is supplied from anexternal REF pin. A reference buffer is also provided on chip. The parts incorporate a power-on-reset circuit that ensures that the DAC output powers up to zero volts/ mid scale and remains there until a valid write takes place to the device. The parts also contain a power-down feature that reduces the current consumption of the device to 50nA at 5 V and provides software selectable output loads while in power-down mode. The part is put into power-down mode over the serial interface. Total unadjusted error for the part is <1mV.These parts also provide a very low glitch on power-up.