**AD7528LRZ: A Comprehensive Technical Overview of the Dual 8-Bit Buffered Multiplying DAC**

The **AD7528LRZ** represents a significant component in the realm of digital-to-analog conversion, offering designers a compact and efficient solution for applications requiring dual-channel precision. As a **dual 8-bit buffered multiplying digital-to-analog converter (DAC)**, this device integrates two complete DACs into a single package, providing enhanced functionality and space savings for complex systems.

A primary feature of the AD7528LRZ is its **inherent multiplying capability**. Unlike standard voltage-output DACs, this device allows an external reference voltage to be applied, which it then multiplies by the digital code to produce an analog output current. This functionality is pivotal for applications such as programmable gain amplifiers, waveform generation, and complex modulation schemes. The **buffered input latches** for each DAC are crucial, as they ensure that the digital inputs are held stable during the conversion process, preventing glitches and errors in the output. This is especially important in systems with multiplexed digital data buses.

The architecture of the AD7528LRZ is designed for versatility. Each of the two 8-bit DACs features its own data latch, allowing them to be updated independently or simultaneously, providing **precise synchronous control** over both channels. The device operates with a wide range of reference voltages, which can be AC or DC, positive or negative, further underscoring its flexibility as a four-quadrant multiplier. The output is provided as complementary currents, which can be easily converted to a voltage using a single external operational amplifier per channel.

Housed in a compact package, the AD7528LRZ is engineered for performance. It exhibits **low glitch impulse**, minimizing transient noise during major code transitions, which is critical for maintaining signal integrity in sensitive analog circuits. Furthermore, it offers **fast settling times** for its output currents, enabling its use in higher-speed applications.

Typical applications that benefit from the AD7528LRZ's feature set include:

* **Digital Gain and Attenuation Control:** Where the external reference is modulated.

* **Programmable Filters and Power Supplies:** Utilizing the multiplying function for dynamic control.

* **Industrial Process Control:** Providing dual-channel output for actuator drives.

* **Audio Equipment:** For dual-channel volume and tone control.

**ICGOOODFIND**: The AD7528LRZ stands out as a highly integrated and versatile solution for systems demanding dual, high-performance digital-to-analog conversion. Its multiplying architecture, independent channel control, and robust design make it an excellent choice for a wide array of precision analog applications.

**Keywords**: Multiplying DAC, Dual Channel, Buffered Input, Digital-to-Analog Converter, Programmable Gain.