AD7708BRUZ Datasheet

Analog to Digital Converters - ADC


The AD7708/AD7718/ AD7708BRUZ are complete analog front-ends for low frequency measurement applications. The AD7718 contains a 24-bit Σ- ADC with PGA and can be configured as 4/5 fullydifferential input channels or 8/10 pseudo-differential input channels. Two pins on the device are configurable as analog inputs or reference inputs. The AD7708 is a 16-bit version of the AD7718. Input signal ranges from 20 mV to 2.56 V can be directly converted using these ADCs. Signals can be converted directly from a transducer without the need for signal conditioning. The device operates from a 32 kHz crystal with an on-board PLL generating the required internal operating frequency. The output data rate from the part is software programmable. The peak-topeak resolution from the part varies with the programmed gain and output data rate. The part operates from a single 3 V or 5 V supply. When operating from 3 V supplies, the power dissipation for the part is 3.84 mW typ. Both parts are pin-for-pin compatible allowing an upgradable path from 16 to 24 bits without the need for hardware modifications. The AD7708/AD7718 are housed in 28-lead SOIC and TSSOP packages. AD7708BRUZ Features • 8-/10-Channel, High Resolution - ADCs• AD7708 Has 16-Bit Resolution• AD7718 Has 24-Bit Resolution• Factory-Calibrated• Single Conversion Cycle Setting• Programmable Gain Front End• Simultaneous 50 Hz and 60 Hz Rejection• VREF Select™ Allows Absolute and Ratiometric AD7708BRUZ Applications • Industrial Process Control• Instrumentation• Pressure Transducers• Portable Instrumentation• Smart Transmitters


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Manufacturer information


Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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