ADS7882

具有 Ref 引脚的 2.7V-5.25V 数字、5V 模拟 12 位 3MSP 并行 ADC

The is a 12-bit 3-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage.

The —IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in 48-pin TQFP package.

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3-MHz Sample Rate, 12-Bit Resolution

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Zero Latency

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Unipolar, Pseudo Differential Input, Range:

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0 V to 2.5 V

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High-Speed Parallel Interface

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69.5 dB SNR at 100 kHz I/P

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Power Dissipation 85 mW at 3 MSPS

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Nap Mode 10 mW Power Dissipation

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Power Down 10 µW

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Internal Reference

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Internal Reference Buffer

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48-Pin TQFP Package

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APPLICA ONS

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Optical Networking DWDM, MEMS Based Switching

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Spectrum Analyzers

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High Speed Data Acquisition Systems

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High Speed Close-Loop Systems

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Telecommunication

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Ultra-Sound Detection