TLC7226CN

The TLC7226CN from Texas Instruments is a quadruple 8-bit digital-to-analog converter (DAC) designed for general-purpose applications. It integrates four 8-bit voltage-output DACs with output buffer amplifiers and interface logic on a single monolithic chip. Data is transferred via a common 8-bit TTL/CMOS-compatible 5-V input port, with control inputs A0 and A1 determining which DAC is loaded.

Key electrical specifications include an 8-bit resolution, a parallel interface, and a buffered voltage output. The output voltage range is from 0 to 10V, with an Integral Non-Linearity (INL) of ±1 LSB maximum. The settling time is 5 µs, and it utilizes an external reference type with an R-2R architecture. The device operates with a power consumption of typically 90 mW and supports a sample/update rate of 0.143 Msps.

This DAC is available in a 20-PDIP package and is designed for through-hole mounting. It operates within a temperature range of -40°C to 85°C, making it suitable for various industrial environments. Applications include process control, automatic test equipment, and automatic calibration of large system parameters.

The TLC7226CN is compatible with most 8-bit microprocessors and can operate from single or dual supplies. Each DAC includes an output buffer amplifier capable of sourcing up to 5 mA of output current.