**ADG507ATQ: A Comprehensive Guide to the 8-Channel CMOS Analog Multiplexer**
The **ADG507ATQ** is a monolithic, complementary metal-oxide-semiconductor (CMOS) analog multiplexer designed to handle a wide range of analog signal switching applications. As a single-pole, 8-throw (SP8T) configuration, it serves as a crucial interface component, enabling a single output to be connected to one of eight independent input channels. This functionality is indispensable in systems where multiple sensors or signal sources must be sequentially monitored or processed by a single downstream component, such as an analog-to-digital converter (ADC) or an operational amplifier.
Engineered for high performance, the **ADG507ATQ** is built on an advanced CMOS process, which provides the essential benefits of **very low power dissipation** and high switching speed. A standout feature of this device is its **on-chip address decoder**, which greatly simplifies the interface with digital systems like microcontrollers and microprocessors. By applying a simple 3-bit binary code to the address lines (A0, A1, A2), users can select any one of the eight channels, making system design more straightforward and reducing the required number of digital I/O pins from the controlling device.
The multiplexer is designed to operate over a broad **bipolar analog signal range**, typically **±15 V**. This makes it exceptionally versatile for use in industrial control systems, data acquisition systems, and audio signal routing where signals can swing both positive and negative relative to ground. The **low on-resistance (typically 300 Ω)** is remarkably consistent across the entire signal range, ensuring minimal signal distortion and attenuation. Furthermore, the **on-resistance matching between channels** is excellent, which is critical for maintaining signal integrity when switching between different inputs in precision measurement applications.
Another significant advantage is the device's **break-before-make switching action**. This feature ensures that the currently connected channel is fully disconnected before a new channel is connected, preventing any momentary shorting between two input signals. This is vital for protecting sensitive signal sources and avoiding glitches in the output.
The ADG507ATQ is available in a compact **TQFP package**, making it suitable for space-constrained PCB designs. Its robust construction ensures high reliability, and it is characterized for operation from -40°C to +85°C, catering to industrial and extended temperature range applications.
**ICGOODFIND**: The ADG507ATQ stands out as a robust and highly integrated solution for complex analog signal routing. Its combination of a wide bipolar voltage range, low power consumption, and an integrated address decoder makes it an **excellent choice for designers** building sophisticated data acquisition systems, automated test equipment (ATE), and medical instrumentation.
**Keywords**: CMOS Analog Multiplexer, Low On-Resistance, Break-Before-Make, Bipolar Signal Handling, Address Decoder.
