ADS7882中文资料具有 Ref 引脚的 2.7V-5.25V 数字、5V 模拟 12 位 3MSP 并行 ADC数据手册TI规格书

描述 Description

The ADS7882 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.

特性 Features

• 3-MHz Sample Rate, 12-Bit Resolution
• Unipolar, Pseudo Differential Input, Range:
• High-Speed Parallel Interface
• Power Dissipation 85 mW at 3 MSPS
• Power Down (10 µW)
• Internal Reference Buffer
• APPLICATIONS
• Spectrum Analyzers
• High Speed Close-Loop Systems
• Ultra-Sound Detection