■ DESCRIPTION

The MB88346B features 12 channels of 8-bit D/A converters with output amplifier for digital tuning. The output amplifier provides high current drive capability.

As the MB88346B inputs data in serial, it requires only three control lines and can also be cascade-connected with the MB88340 series.

The MB88346B is suitable for electronic volumes and replacement for potentiometers for adjustment, in addition to normal D/A converter applications.

■ FEATURES

• Low power consumption

• Small package

• Integrating 12 channels of R-2R type 8-bit D/A converter

• Built-in analog output amplifier (Max +1.0 mA sink/source current)

• Analog output range : 0 to VCC

• The range of D/A conversion can be independently set by separated the power supply for MCU interface and OP amplifier and the power supply for D/A converter.

• Capable of being controlled directly by a 3-V MCU (input voltage : “H” = 0.5 VCC, “L” = 0.2 VCC)

• Serial data input, 2.5 MHz operation

• CMOS process

• Package lineup : DIP 20-pin, SOP 20-pin, SSOP 20-pin