■ DESCRIPTION

The FUJITSU MB88141A is an 8-bit D/A converter with 12 built−in channels.

The 12 analog output channels have built-in OP Amps, providing large current drive capability.

Data input is compatible with I2C specifications, and is controlled by two control lines.

The built-in I/O expander function allows the MB88141A to be controlled by devices incompatible with I2C bus specifications (provides conversion between I2C serial and 8- or 4-bit parallel I/O).

The MB88141A is ideal for replacing electronic knob or pre-set variable resistance tuning devices.

■ FEATURES

• Ultra-low power consumption (0.9 mW/channel Typ.)

• Ultra-compact package

• Built-in 12-channel R-2R type 8-bit D/A converter

• Built-in analog output amplifier (maximum sink current 1.0 mA, maximum source current 1.0 mA)

• Analog output range 0 V to VCC

• 5 V single power supply

• Power supply/GND for MCU interface and OP Amp is separate from power supply/GND for D/A converter

• Power supply for D/A converter is divided into two systems for VDDI/VSSI (AO1 to AO4) and VDD2/VSS2 (AO5 to AO12) , allowing separate level settings for each system

• Compatible with serial data input, I2C specifications

• Built-in I/O expander function (converts between I2C serial and 8-or 4-bit parallel)

• CMOS process

• Packages : DIP 24-pin, SOP 24-pin, SSOP 24-pin