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12-Bit Dual Slope Analog-to-Digital Converter.

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TC7109CPL General Description

The TC7109 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 TC7109 has features that 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 1 µV/°C, input noise typically 15 µVp-p, and auto-zero. True differential input and reference allow measurement of bridge-type transducers such as load cells, strain gauges, and temperature transducers. In the handshake mode, the TC7109 will operate with industry-standard UARTs in controlling serial data transmission - ideal for remote data logging.


Key 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 Overrange Indication
    • True Differential Signal Input and Differential Reference Input
    • Low Noise: 15µVp-p Typ.
    • Input Current: 1pA Typ.
    • No Zero Adjustment Needed
    • UART Handshake Mode for Simple Serial Data Transmission


Category Integrated Circuits (ICs)Data AcquisitionAnalog to Digital Converters (ADC) Mfr Microchip Technology
Series - Package Tube
Product Status Active Number of Bits 12
Sampling Rate (Per Second) 30 Number of Inputs 1
Input Type Differential Data Interface Parallel
Configuration ADC Ratio - S/H:ADC -
Number of A/D Converters 1 Architecture Dual Slope
Reference Type External Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V Features -
Operating Temperature 0°C ~ 70°C Package / Case 40-DIP (0.600", 15.24mm)
Supplier Device Package 40-PDIP Mounting Type Through Hole
Base Product Number TC7109 Manufacturer Microchip
Product Category Analog to Digital Converters - ADC RoHS Details
Mounting Style Through Hole Resolution 12 bit
Number of Channels 1 Channel Interface Type Parallel
Sampling Rate 10 S/s Minimum Operating Temperature 0 C
Maximum Operating Temperature + 70 C Brand Microchip Technology
Height 4.95 mm Length 53.21 mm
Number of Converters 1 Converter Operating Supply Voltage 6.2 V
Pd - Power Dissipation 1230 mW Product Analog to Digital Converters
Product Type ADCs - Analog to Digital Converters Shutdown No Shutdown
Factory Pack Quantity 10 Subcategory Data Converter ICs
Type Low Power ADC Width 14.73 mm
Unit Weight 0.210004 oz

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Ratings and Reviews

C**e 09/14/2023

Fast shipping. the item is fully working and according to the description

C**n 04/20/2023

Fast product shipping. For re for r led bulb. Recommended!

S**a 12/28/2021

Very good product according to the description.

S**n 09/17/2021

Everything is fine, the delivery is paid,,,, i wanted so much. I collect them.



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