Overview
The ADG713BRU is a single-pole, double-throw (SPDT) analog switch manufactured by Analog Devices. It is designed for precision signal routing applications where low on-resistance and high bandwidth are critical. The device operates from a single 1.8V to 5.5V supply, making it suitable for battery-powered and low-voltage systems. The ADG713BRU is part of Analog Devices' portfolio of high-performance analog switches, offering excellent dynamic performance and low power consumption. It comes in a small 16-lead TSSOP package, making it ideal for space-constrained applications in industrial, communication, and test equipment.
Structure and Working Principle
The ADG713BRU consists of CMOS switches that connect the common terminal to one of two possible outputs based on the control input. The device features break-before-make switching action to prevent signal contention during switching transitions. Internal charge pumps ensure proper gate drive for the switches across the full supply voltage range. The switch's low on-resistance (typically 0.5Ω) and flatness across the signal range minimize signal distortion. The device offers -3dB bandwidth exceeding 200MHz, making it suitable for high-frequency applications. The control interface is compatible with both TTL and CMOS logic levels.
Key Features
The ADG713BRU's most notable feature is its low on-resistance of 0.5Ω (typical), which remains relatively constant across the input signal range. This characteristic minimizes signal attenuation and distortion in precision applications. The device also features low power consumption (less than 0.1μA in standby mode) and fast switching times (typically 20ns). Other important features include excellent on-resistance flatness (0.1Ω typical), high off-isolation (-90dB at 1MHz), and crosstalk rejection (-90dB at 1MHz). These specifications make the ADG713BRU particularly suitable for audio signal routing, data acquisition systems, and communication equipment where signal integrity is paramount.
Application Areas
The ADG713BRU finds extensive use in industrial automation systems for signal routing between sensors, amplifiers, and data converters. It's commonly employed in programmable logic controllers (PLCs), process control systems, and test/measurement equipment where reliable signal switching is required. In communication systems, the device is used for antenna switching, signal routing in base stations, and multiplexing in RF front-ends. Other applications include medical instrumentation, audio/video signal routing, and battery-powered portable devices where low power consumption is critical.
Maintenance and Precautions
When implementing the ADG713BRU, proper ESD precautions should be observed during handling and assembly. The device should be stored in anti-static packaging when not in use. Maximum voltage ratings (both signal and supply) should not be exceeded to prevent damage to the internal CMOS circuitry. Board layout considerations include minimizing trace lengths to reduce parasitic capacitance and inductance. Power supply bypassing with 0.1μF ceramic capacitors placed close to the device is recommended for optimal performance. The device should be operated within its specified temperature range (-40°C to +85°C) for reliable operation.
B2B Procurement Guide
When procuring ADG713BRU switches in bulk, consider ordering directly from authorized distributors or Analog Devices' franchised partners to ensure authenticity. Lead times can vary based on market demand, so planning ahead is advisable for large volume orders. For prototype quantities, many distributors offer small quantity samples. Pricing typically decreases with volume purchases, with standard commercial grade units being more readily available than industrial or military temperature range variants. Consider purchasing evaluation boards for testing the device in your specific application before committing to large quantities.
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