General Description
The TC530/TC534 are serial analog data acquisition subsystems ideal for high precision measurements (up to 17-bits plus sign). The TC534 consists of a dual slope integrating A/D converter, negative power supply generator and 3 wire serial interface port. The TC530 is identical to the TC534, but adds a four channel differential input multiplexer. Key A/D converter operating parameters (Auto Zero and Inte gration time) are programmable, allowing the user to trade conversion time for resolution.
The TC530/TC534 timebase can be derived from an external crystal of 2MHz (max) or from an external fre quency source. The TC530/TC534 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.

FEATUREs
• Precision (up to 17-Bits) A/D Converter
• 3-Wire Serial Port
• Flexible: User Can Trade Off Conversion Speed For Resolution
• Single Supply Operation
• -5V Output Pin
• 4 Input, Differential Analog MUX (TC530)
• Automatic Input Polarity and Overrange Detection
• Low Operating Current: 5mA Max
• Wide Analog Input Range: ±4.2V Max
• Cost Effective

APPLICATIONs
• Precision Analog Signal Processor
• Precision Sensor Interface
• High Accuracy DC Measurements