ZHCSIT9C November 2018 – February 2024 TMUX1104
PRODUCTION DATA
請參考 PDF 數據表獲取器件具體的封裝圖。
The TMUX1104 can be operated without any external components except for the supply decoupling capacitors. If the desired power-up state is disabled, the enable pin should have a weak pull-down resistor and be controlled by the MCU through the GPIO. All inputs being muxed to the ADC must fall within the recommend operating conditions of the TMUX1104, including signal range and continuous current. For this design with a supply of 3.3V the signal range can be 0V to 3.3V, and the max continuous current can be 30mA.
The design example highlights a multiplexed data-acquisition system for highest system linearity and fast settling. The overall system block diagram is shown in Figure 8-1. The circuit is a multichannel data-acquisition signal chain consisting of an input low-pass filter, mux, mux output buffer, SAR ADC driver, and a reference buffer. The architecture provides a cost-effective solution for fast sampling of multiple channels using a single ADC.