GENERAL DESCRIPTION

The AD8300 is a complete 12-bit, voltage-output digital-to analog converter designed to operate from a single +3 volt supply. Built using a CBCMOS process, this monolithic DAC offers the user low cost, and ease-of-use in single-supply +3 volt systems. Operation is guaranteed over the supply voltage range of +2.7 V to +5.5 V making this device ideal for battery operated applications.

The 2.0475 V full-scale voltage output is laser trimmed to maintain accuracy over the operating temperature range of the device. The binary input data format provides an easy-to-use one-half-millivolt-per-bit software programmability. The voltage outputs are capable of sourcing 5 mA.

A double buffered serial data interface offers high speed, three wire, DSP and microcontroller compatible inputs using data in (SDI), clock (CLK) and load strobe (LD) pins. A chip select (CS) pin simplifies connection of multiple DAC packages by enabling the clock input when active low. Additionally, a CLR input sets the output to zero scale at power on or upon user demand.

The AD8300 is specified over the extended industrial (–40°C to +85°C) temperature range. AD8300s are available in plastic DIP, and low profile 1.5 mm height SO-8 surface mount packages.

FEATURES

Complete 12-Bit DAC

No External Components

Single +3 Volt Operation

0.5 mV/Bit with 2.0475 V Full Scale

6 ms Output Voltage Settling Time

Low Power: 3.6 mW

Compact SO-8 1.5 mm Height Package

APPLICATIONS

Portable Communications

Digitally Controlled Calibration

Servo Controls

PC Peripherals