[ADI]

GENERAL DESCRIPTION

The AD5424/AD5433/AD5445 are CMOS 8, 10 and 12-bit current output digital-to-analog converters (DACs) respectively.

These devices operate from a +2.5 V to 5.5 V power supply, making them suited to battery powered applications and many other applications.

These DACs utilize Data readback allowing the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeros and the DAC outputs are at zero scale.

As a result of manufacture on a CMOS sub micron process, they offer excellent four quadrant multiplication characteristics, with large signal multiplying bandwidths of up to 10MHz.

The applied external reference input voltage (VREF) determines the full scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full scale voltage output when combined with an external I-toV precision amplifier.

FEATURES

+2.5 V to +5.5 V Supply Operation

Fast Parallel Interface (10ns WR cycle)

10MHz Multiplying Bandwidth

±10V Reference Input

20-Lead TSSOP and Chip Scale (4 x4mm) Packages

8, 10 and 12 Bit Current Output DACs

Pin compatible 8, 10 & 12 Bit DACs in Chip Scale

Guaranteed Monotonic

Four Quadrant Multiplication

Power On Reset

Readback Function

5μA typical Power Consumption

APPLICATIONS

Portable Battery Powered Applications

Waveform Generators

Analog Processing

Instrumentation Applications

Programmable Amplifiers and Attenuators

Digitally-Controlled Calibration

Programmable Filters and Oscillators

Composite Video

Ultrasound

Gain, offset and Voltage Trimming