LM12H454CIV

ADCs/DACs - Special Purpose Overview

The LM12H454CIV is a 12-bit plus sign data acquisition system manufactured by National Semiconductor, now part of Texas Instruments. It integrates a high-speed analog-to-digital converter with self-calibration capabilities to maintain accuracy without external trimming. The device operates within an industrial temperature range of -40°C to +85°C and supports supply voltages between 3V and 5.5V, typically rated at 5V. It is housed in a 44-lead Plastic Quad Flat Package (PQCC44) with J-bend terminals and a 1.27mm pitch, designed for surface-mount applications requiring compact form factors.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 12-bit plus sign ADC with built-in self-calibration
• Industrial temperature rating (-40°C to +85°C)
• Single 5V supply operation (3V to 5.5V range)
• 44-lead PQCC plastic quad flat package

ADCs/DACs - Special Purpose Applications

• Precision data acquisition systems
• Industrial process control instrumentation
• Medical equipment signal conditioning

ADCs/DACs - Special Purpose Part Context

The LM12H454CIV belongs to the LM1245x family, which includes variants like the LM12454, LM12458, and LM12H458. These components are specialized analog circuits designed for high-accuracy data conversion tasks. The 'H' suffix typically denotes specific performance or packaging variations within the National Semiconductor portfolio, while 'CIV' indicates the commercial/industrial temperature grade and lead finish/package type.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements include other members of the LM1245x family such as the LM12454CIV or LM12458CIV, provided pin compatibility and channel count requirements match. Verify that the substitute component maintains the same 44-lead PQCC package and industrial temperature range specifications.