LTC2314HTS8-14#TRMPBF

Analog To Digital Converters (ADC) Overview

The LTC2314HTS8-14#TRMPBF is a 14-bit, 4.5Msps serial sampling Analog-to-Digital Converter (ADC) in an 8-lead TSOT-23 package. It operates from a wide analog supply range of 2.7V to 5.25V and features an integrated bandgap reference with a maximum temperature coefficient of 20ppm/°C. The device achieves a Signal-to-(Noise + Distortion) Ratio (SINAD) of 77dB and Total Harmonic Distortion (THD) of –85dB at a 500kHz input frequency. It supports a separate digital I/O supply (OVDD) ranging from 1.71V to 5.25V, enabling compatibility with 1.8V, 2.5V, 3V, and 5V logic interfaces via an SPI-compatible serial interface.

Analog To Digital Converters (ADC) Feature Summary

• 4.5Msps throughput rate with guaranteed 14-bit resolution and no missing codes
• Integrated internal reference providing 2.048V or 4.096V span depending on VDD
• Low power consumption: 6.2mA at 4.5Msps with 5V supply; includes Nap and Sleep modes
• SPI-compatible serial interface supporting 1.8V to 5V logic levels

Analog To Digital Converters (ADC) Applications

• Communication systems
• High-speed data acquisition
• Handheld terminal interfaces
• Medical imaging
• Uninterrupted power supplies

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRMPBF indicates a Tape and Reel (Mini) quantity of 500 pieces. Confirm the 'H' grade designation corresponds to the extended operating temperature range of –40°C to 125°C as specified in the manufacturer's order information table. Ensure packaging specifications align with project requirements for mini-tape reels.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-speed conversion at 4.5Msps is required within a compact TSOT-23 footprint. The internal reference simplifies design by eliminating external components, provided the system operates within the 2.7V–5.25V analog supply range. Consider the separate OVDD pin if interfacing with low-voltage logic (1.8V/2.5V) while maintaining a higher analog supply voltage.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2314 family of 14-bit SAR ADCs. It is pin-compatible with other members of the complete 14-/12-bit family, including the LTC2312-14, LTC2313-14, and various 12-bit variants like the LTC2315-12. These devices share similar architectures but differ in throughput rates ranging from 500ksps to 5Msps.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-for-pin compatible substitutes within the same family include the LTC2313-14 (2.5Msps) and LTC2312-14 (500ksps). For lower speed requirements, the 12-bit LTC2315-12 is also compatible. Verify that the replacement part's throughput and power specifications meet the specific application constraints.