LTC1452CS8#PBF

Digital To Analog Converters Overview

The LTC1452CS8#PBF is a 12-bit multiplying digital-to-analog converter (DAC) in an 8-lead SOIC package. It features a buffered true rail-to-rail voltage output and operates from a single supply of 2.7V to 5.5V. The full-scale output voltage is twice the external reference input voltage. Key electrical parameters include a maximum differential nonlinearity (DNL) error of ±0.5 LSB, a settling time of 14µs to –0.5 LSB, and a typical supply current of 225µA at 2.7V–5.5V. The device utilizes a 3-wire cascadable serial interface with Schmitt trigger inputs.

Digital To Analog Converters Feature Summary

• Multiplying DAC architecture with full-scale output equal to twice the reference input voltage
• Buffered rail-to-rail voltage output capable of sourcing/sinking 5mA
• 3-wire cascadable serial interface with Schmitt trigger on clock input
• Low power consumption with typical supply current of 225µA

Digital To Analog Converters Applications

• Industrial process control systems
• Automatic test equipment
• Battery-powered applications requiring low power consumption

Digital To Analog Converters Procurement Notes

Verify that the application provides an external reference voltage, as the LTC1452 lacks an internal reference unlike the LTC1451 or LTC1453. Ensure the reference signal does not exceed VCC/2 and can drive the minimum 8k resistor ladder. Confirm the supply voltage range aligns with the 2.7V to 5.5V specification for proper operation.

Digital To Analog Converters Selection Notes

Select the LTC1452 when a multiplying DAC function is required, where the output scales linearly with an external reference voltage. Choose this part over the LTC1451 if an internal reference is not desired or if the system requires a variable full-scale range determined by an external reference source. Ensure the external reference meets the drive capability requirements.

Digital To Analog Converters Part Context

The LTC1452 is part of the LTC1451/LTC1452/LTC1453 family of 12-bit micropower DACs. While sharing the same SO-8 package and serial interface, it differs from the LTC1451 (which has an internal 2.048V reference) and the LTC1453 (which has an internal 1.22V reference). The LTC1452 specifically serves as the multiplying variant within this series.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.