ADC122S051CIMM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC122S051CIMM/NOPB is a dual-channel, 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a sampling rate range of 200 ksps to 500 ksps and supports single-ended inputs. The device utilizes a single power supply ranging from 2.7 V to 5.25 V for both analog and digital sections. Key performance metrics include a typical signal-to-noise ratio (SNR) of 72.5 dB and a maximum integral nonlinearity (INL) of 1 LSB. It features an SPI-compatible serial interface and is housed in an 8-pin VSSOP package, designed for industrial temperature operation between -40°C and +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture supporting simultaneous or independent single-channel conversion modes
• Variable power management allowing optimization between speed and consumption across the sampling rate range
• Flexible serial interface compatibility with standard SPI, QSPI, MICROWIRE, and DSP protocols

Analog To Digital Converters (ADC) Applications

• Automotive electronic systems requiring AEC-Q100 qualified components
• Portable battery-powered instrumentation and measurement devices
• Remote data acquisition systems with limited power budgets

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CIMM' indicates commercial temperature grading (-40°C to +85°C) distinct from the automotive 'QIMM' variant. Confirm the 'NOPB' designation ensures lead-free packaging compliance. Cross-reference the manufacturer datasheet revision date against the production batch to ensure alignment with current pinout and electrical specifications before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel solution is required within a compact VSSOP-8 footprint. It is suitable for applications needing moderate resolution (12-bit) with variable throughput up to 500 ksps. Ensure the input signal range matches the single-supply voltage capabilities and that the system clock can support the required serial interface speeds for the desired data throughput.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC122S051 family of low-power CMOS 12-bit ADCs. It shares architectural similarities with the ADC122S625 and ADC124S101 but differs in channel count and specific sampling rate specifications. The device represents a transition from older National Semiconductor designs now managed under Texas Instruments' portfolio, maintaining backward compatibility in pinouts while offering updated automotive qualification options.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC122S051QIMM/NOPB serves as the automotive-grade equivalent with identical electrical characteristics but enhanced reliability testing per AEC-Q100 standards. For higher throughput requirements, the ADC122S101 offers similar architecture at increased speeds. Single-channel alternatives include the ADC102S101 for lower resolution needs.