LTC2312HTS8-14#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2312HTS8-14#TRPBF is a 14-bit, 500ksps serial sampling Analog-to-Digital Converter (ADC) in an 8-lead TSOT-23 package. It operates from a single 3V or 5V analog supply and features an integrated low-drift internal reference with a maximum temperature coefficient of 20ppm/°C. The device achieves 77dB SINAD and –85dB THD at full throughput. Power consumption is 9mW at 500ksps with a 3V supply. It includes nap and sleep modes to minimize current draw during inactive periods.

Analog To Digital Converters (ADC) Feature Summary

• 14-Bit Resolution with No Missing Codes
• 500ksps Sampling Rate with No Cycle Latency
• Integrated 2.048V/4.096V Reference (20ppm/°C Max Drift)
• SPI-Compatible Serial Interface Supporting 1.8V to 5V Logic

Analog To Digital Converters (ADC) Applications

• Communication Systems
• High Speed Data Acquisition
• Medical Imaging
• Uninterrupted Power Supplies
• Battery Operated Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix '#TRPBF' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the 'H' grade designation aligns with the necessary operating temperature range of –40°C to 125°C for the target application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high sample rate-to-power ratio is critical for compact designs. Ensure the host system supports the SPI-compatible serial interface logic levels via the OVDD pin. Verify that the input signal range matches the internal reference output span of 0V to VREF.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2312-14 family of 14-bit SAR ADCs. It shares pin compatibility with other members of the series, such as the LTC2313-14 and LTC2314-14, which offer higher sampling rates up to 5Msps while maintaining the same 8-lead TSOT package form factor.

Analog To Digital Converters (ADC) Replacement Considerations

LTC2312ITS8-14#TRPBF: Same electrical performance but rated for industrial temperature range (–40°C to 85°C).

Analog To Digital Converters (ADC) FAQ

How does the device manage power consumption during idle periods?

The device automatically enters nap mode after conversions, reducing supply current to approximately 2mA. It can also enter sleep mode with typical supply current below 1µA by pulsing the CONV pin four times.

What is the wake-up time from sleep mode?

Exiting sleep mode requires a wait period of 1.1ms to allow the internal reference buffer capacitor to recharge before an accurate conversion can be initiated.

Can the internal reference be overridden?

Yes, the REF pin can be overdriven with an external voltage at least 50mV higher than the internal reference output to use an external reference source.