Texas Instruments

ADC121S021CISD  

Analog to Digital Converters

ADC121S021CISD Description

The ADC121S021CISD is a 12-bit, single-channel, successive approximation register (SAR) analog-to-digital converter (ADC) designed by Texas Instruments. This IC is part of the Data Acquisition ICs category and is housed in a 6-lead WSON package, making it suitable for surface-mount applications. While it is currently marked as obsolete, its technical specifications and performance capabilities still make it a valuable component for certain applications.

ADC121S021CISD Features

• High Resolution: The ADC121S021CISD offers a 12-bit resolution, providing precise data conversion for a wide range of analog signals.
• Fast Sampling Rate: With a sampling rate of 200,000 samples per second (200k SPS), this ADC is capable of capturing high-frequency signals efficiently.
• Flexible Data Interface: It supports both SPI and DSP interfaces, allowing for seamless integration with various microcontrollers and digital signal processors.
• Wide Supply Voltage Range: The ADC operates within a supply voltage range of 2.7V to 5.25V for both analog and digital supplies, making it versatile for different power supply configurations.
• Single-Ended Input: The single-ended input type simplifies the design and reduces the complexity of the signal conditioning circuitry.
• Supply-Referenced Architecture: The supply-referenced architecture ensures accurate conversion by using the supply voltage as the reference.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the ADC121S021CISD is suitable for applications requiring high reliability in various environmental conditions.
• Compliance and Packaging: The device is REACH unaffected and comes in a tape and reel (TR) package, facilitating easy handling and assembly in production environments.

ADC121S021CISD Applications

The ADC121S021CISD is ideal for applications requiring high-precision data acquisition in compact and efficient designs. Some specific use cases include:

• Industrial Automation: For real-time monitoring and control of industrial processes where precise measurement of analog signals is crucial.
• Medical Equipment: In medical devices that require accurate and reliable data conversion, such as patient monitoring systems and diagnostic equipment.
• Consumer Electronics: For applications in consumer electronics where high-resolution data acquisition is needed, such as in sensors and smart devices.
• Automotive Systems: In automotive applications for monitoring various parameters like temperature, pressure, and other sensor inputs.

Conclusion of ADC121S021CISD

Despite being marked as obsolete, the ADC121S021CISD remains a robust and reliable ADC for applications requiring high precision and fast sampling rates. Its 12-bit resolution, flexible data interfaces, and wide supply voltage range make it a versatile component for various industries. The single-ended input and supply-referenced architecture further simplify design and ensure accurate conversion. While newer models may offer additional features, the ADC121S021CISD continues to provide excellent performance and reliability for applications where its specifications are well-suited.

ADC121S021CISD Documents

Download datasheets and manufacturer documentation for ADC121S021CISD

Datasheets :

ADC121S021      

HTML Datasheet :

ADC121S021