ADS7882 - 具有 Ref 引脚的 2.7V-5.25V 数字、5V 模拟 12 位 3MSP 并行 ADC

ADS7882是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS7882是具有 Ref 引脚的 2.7V-5.25V 数字、5V 模拟 12 位 3MSP 并行 ADC，本站介绍了ADS7882的封装应用图解、特点和优点、功能等，并给出了与ADS7882相关的TI元器件型号供参考。

ADS7882 - 具有 Ref 引脚的 2.7V-5.25V 数字、5V 模拟 12 位 3MSP 并行 ADC - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

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.

产品特性

3-MHz Sample Rate, 12-Bit Resolution
Zero Latency
Unipolar, Pseudo Differential Input, Range:
- 0 V to 2.5 V
High-Speed Parallel Interface
69.5 dB SNR at 100 kHz I/P
Power Dissipation 85 mW at 3 MSPS
Nap Mode (10 mW Power Dissipation)
Power Down (10 µW)
Internal Reference
Internal Reference Buffer
48-Pin TQFP Package
APPLICATIONS
- Optical Networking (DWDM, MEMS Based Switching)
- Spectrum Analyzers
- High Speed Data Acquisition Systems
- High Speed Close-Loop Systems
- Telecommunication
- Ultra-Sound Detection

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