AD7226BQ

The AD7226BQ from Analog Devices is a monolithic integrated circuit containing four 8-bit voltage-output digital-to-analog converters (DACs). Each DAC includes an output buffer amplifier capable of driving up to 5 mA of output current. The device features separate on-chip latches for each DAC, allowing data transfer through a common 8-bit TTL/CMOS compatible input port.

Designed for microprocessor compatibility, the AD7226BQ offers a versatile control architecture. It supports both single and dual supply operation, with specified performance for reference voltages from 2 V to 12.5 V with dual supplies, and 10 V for single supply operation. The integral nonlinearity error is specified at ±0.5 LSB, and the settling time is 4 µs.

Fabricated using a high-speed LC2MOS process, the AD7226BQ integrates high-speed digital logic and precision analog circuits. It is housed in a 20-pin CDIP package and is designed for through-hole mounting. The operating temperature range is -40°C to +85°C, classifying it for industrial applications.

Key features include inherent DAC-to-DAC matching due to on-chip fabrication, and a compact design that reduces board space requirements. The pinout is optimized for board layout, with analog inputs and outputs at one end and digital inputs at the other.