Status: End of Life
The TC530/534 are serial analog data acquisition subsystems ideal for high precision measurements (up to 17bits plus sign). The TC530 consists of a dual slope integrating A/D converter, negative power supply generator and 3 wire serial interface port. The TC534 is identical to the TC530, but adds a four channel differential input multiplexer. Key A/D converter operating parameters (Auto Zero and Integration time) are programmable, allowing the user to trade-off conversion time for resolution. Data conversion is initiated when the RESET input is brought low. After conversion, data is loaded into the output shift register and EOC is asserted indicating new data is available. The converted data (plus Overrange and polarity bits) is held in the output shift register until read by the processor, or until the next conversion is completed allowing the user to access data at any time. The TC530/534 timebase can be derived from an external crystal of 2 MHz (max), or from an external frequency source. The TC530/534 requires a single 5V power supply and features a – 5V, 10mA output which can be used to supply negative bias to other components in the system.
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