High stability for low-voltage multichannel DACs

Two new compact high-quality DACs use an R-2R resistor ladder architecture to offer high-stability operation to a wide range of consumer, industrial and office automation applications.

Rohm Electronics has two new compact high-quality DACs that use an R-2R resistor ladder architecture and offer high-stability operation to a wide range of consumer, industrial and office automation applications.

The new BU2501FV 8bit 12-channel DAC and the BU2505FV 10bit 10-channel DAC are ideally suited to adjustment and control in high performance applications ranging from CD and DVD drives to digital cameras, industrial systems, audio equipment, instrumentation and domestic appliances.

Rohm's BU2501FV 8bit 12-channel DAC is designed for operation with a 3V supply voltage.

The 10bit 10-channel BU2505FV DAC uses a 5V supply.

Both convertors offer a TTL-compatible digital input, while each channel output incorporates a rail-to-rail output type buffer amplifier that ensures high-stability operation across the complete voltage range and prevents oscillation, even when using capacitive loads.

The BU2501FV allows 12bit three-wire serial data input and the BU2505FV provides for 14bit three-wire input.

Both DACs can be serially cascaded with other devices of the same type to address the widest possible variety of application requirements.

The new DACs are supplied in compact SSOP-B20 20-pin packages with a board mounting area of just 6.5 x 6.4mm and a low profile of only 1.15mm.

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