TC7109IJL Datasheet PDF - Microchip

●General Description:

●The TC7109A is a 12-bit plus sign, CMOS low power Analog-to-Digital Converter (ADC). Only eight passive components and a crystal are required to form a complete dual slope integrating ADC.

●The improved VOH source current and other TC7109A features make it an attractive per-channel alternative to analog multiplexing for many data acquisition applications. These features include typical input bias current of 1pA, drift of less than 1μV/°C, input noise typically 15μVP-P, and auto-zero. True differential input and reference allow measurement of bridge type transducers, such as load cells, strain gauges and temperature transducers.

●Features:

●• Zero Integrator Cycle for Fast Recovery from Input Overloads

●• Eliminates Cross-Talk in Multiplexed Systems

●• 12-Bit Plus Sign Integrating A/D Converter with Over Range Indication

●• Sign Magnitude Coding Format

●• True Differential Signal Input and Differential Reference Input

●• Low Noise: 15μVP-P Typ.

●• Input Current: 1pA Typ.

●• No Zero Adjustment needed

●• TTL Compatible, Byte Organized Tri-State Outputs

●• UART Handshake Mode for simple Serial Data Transmissions