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ADS7865 - 产品图解：
ADS7865-双路、2MSPS、12 位、3+3 或 2+2 通道、同步采样 ADC
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TI产品 - ADS7865介绍

ADS7865 - 双路、2MSPS、12 位、3+3 或 2+2 通道、同步采样 ADC

ADS7865是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS7865是双路、2MSPS、12 位、3+3 或 2+2 通道、同步采样 ADC，本站介绍了ADS7865的封装应用图解、特点和优点、功能等，并给出了与ADS7865相关的TI元器件型号供参考。

ADS7865 - 双路、2MSPS、12 位、3+3 或 2+2 通道、同步采样 ADC - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADS7865 is a dual, 12-bit, 2MSPS analog-to-digital converter (ADC) with four fully differential or six pseudo-differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold (S/H) amplifiers are fully differential and are maintained differentially to the input of the ADC. This architecture provides excellent common-mode rejection of 72dB at 100kHz, which is a critical performance characteristic in noisy environments.

The ADS7865 is pin-compatible with the ADS7862, but offers additional features such as a programmable channel sequencer and reference output, flexible supply voltage (2.7V to 5.5V for AVDD and BVDD), a pseudo-differential input multiplexer with three channels per ADC, and several power-down features.

The ADS7865 is offered in a TQFP-32 package. It is specified over the extended operating temperature range of –40°C to +125°C.

产品特性

  • Six Pseudo- or Four Fully Differential Inputs
  • SNR: 71.7dB, THD: –87dB
  • Programmable Channel Sequencer
  • Programmable and Buffered Internal 2.5V Reference
  • Flexible Power-Down Features
  • Variable Power-Supply Ranges: 2.7V to 5.5V
  • Low-Power Operation: 44mW Maximum at 5V
  • Operating Temperature Range: –40°C to +125°C
  • Pin-Compatible Upgrade for the ADS7862

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