ADC121S101CIMF

Analog To Digital Converters (ADC) Overview

The ADC121S101 is a low-power, single-channel CMOS 12-bit analog-to-digital converter featuring a high-speed serial interface. Based on a successive-approximation register architecture with an internal track-and-hold circuit, it operates over a sample rate range of 500 ksps to 1 Msps. The device supports a single power supply ranging from 2.7V to 5.25V and consumes 2.0 mW at 3V or 10 mW at 5V. It utilizes straight binary output coding compatible with SPI, QSPI, MICROWIRE, and DSP standards. Available in 6-lead WSON and SOT-23 packages, it ensures operation across a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with specified performance over a 500 ksps to 1 Msps sample rate range
• Single power supply operation (2.7V to 5.25V) with low power consumption (2.0 mW typ at 3V)
• Internal track-and-hold circuit with SPI/QSPI/MICROWIRE/DSP compatible serial interface
• AEC-Q100 Grade 1 qualified for automotive applications

Analog To Digital Converters (ADC) Applications

• Portable systems requiring low power consumption
• Remote data acquisition networks
• Instrumentation and control systems
• Automotive electronics

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package suffix (CISD(X) for WSON or CIMF for SOT-23) against the design requirements. Confirm that the ordering suffix does not alter the functional specifications unless explicitly stated in the manufacturer's documentation. Ensure compliance with RoHS3 standards as indicated in production data.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel 12-bit conversion is required at speeds up to 1 Msps. It is suitable for designs needing compatibility with standard microprocessor serial interfaces without external reference voltage components, as the supply voltage serves as the reference. Consider thermal resistance values (94°C/W for WSON, 265°C/W for SOT-23) during PCB layout.

Analog To Digital Converters (ADC) Part Context

The ADC121S101 belongs to a family of pin-compatible ADCs from Texas Instruments. Alternatives within the same footprint include the ADC121S021 (50-200 ksps), ADC121S051 (200-500 ksps), and higher-resolution variants like the ADC101S101 and ADC081S101. All devices in this series share identical pinouts and functionality, differing primarily in speed and resolution.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements include the ADC121S021, ADC121S051, ADC101S101, and ADC081S101. These parts maintain the same package and electrical interface but offer different maximum sample rates or resolutions.