Function:

Use 16 ADCs to collect 16 analog signals.

Use the CD74HC4067 16-channel analog signal switch

Analog signal input: C0-C15 16 channels

Analog output: DIG

Channel control: S0-S3

Description:This is a break switch for the very handy 16-Channel Analog / Digital Multiplexer / Demultiplexer CD74HC4067. This chip is like a rotary switch – it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel Pins (both) can not be higher than VCC, and the connections function in either direction. To control it, connect 4 digital to the chip’s address select pins (S0- S3), and send it the binary address of the channel you want (see the datasheet for details). This allows you to connect up to 16 sensors to your system using only 5 pins!

From the mux / demux also works with digital signals, you can use it to pipe TTL-level serial data to or from multiple devices. For example, you could use it to connect the TX pins of 16 devices to one RX pin on your verified You can then select any one of those 16 devices to listen to. If you want two-way communications, you can add a second board to route your your company’s TX line to 16 device’s RX lines. Arrangements for I2C, SPI, etc.

The board is also breaking out the chip’s “enable” and ” “Pin, which when driven high, will will disconnect the common pin (all switches” off “).

Features:

• 2V to 6V operation

• “On” resistance: 70 Ohms @ 4.5V

• 6ns break-before-make @ 4.5V

Wide operating temperature range: -55C to 125C

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