LTC2351IUH-12#PBF

Introduction

The LTC2351IUH-12#PBF is an analog-to-digital converter (ADC) designed by Linear Technology, part of the 2351 family of high-resolution, low-power/low-noise ADCs. The LTC2351IUH-12#PBF has a 12-bit conversion resolution, low power operation, and an integrated PLL, which allows the user to design systems with wide bandwidths and low-frequency noise performance.

Applications

The LTC2351IUH-12#PBF is a versatile ADC, capable of being deployed in many different applications. It can be used in scientific and medical instrumentation applications, such as pH meters, blood analyzers, testing equipment, and motion capture. It is also suitable for industrial applications, such as factory automation and machine vision.

Working Principle and Features

At the heart of the LTC2351IUH-12#PBF is Linear Technology’s proprietary 12-bit Sampling Core. This core features a 8×1 analog multiplexer, switched-capacitor chopping system, high-speed sample-and-hold, and comparator. All four of these elements are key components in the ADC and allow the LTC2351IUH-12#PBF to have the following features:

• High sampling rate of up to 420 kSPS
• Integrated PLL for low noise performance
• Low power consumption of 330 mW
• Excellent linearity of ±1.5 LSB INL/ DNL
• 4th-order delta-sigma noise shaping

The ADC is capable of achieving a conversion rate of up to 420 kSPS with a single +3 V supply and 11 mW power draw. The LTC2351IUH-12#PBF also includes an integrated PLL, which reduces the amount of system noise and provides deterministic latency, making it suitable for sensitive analog to digital conversion applications. The PLL also allows the ADC to operate with a 120 MHz system clock.

The LTC2351IUH-12#PBF also includes a number of integrated features to improve the overall performance of the ADC. It includes a 4th-order delta-sigma modulator with low noise performance, which helps to reject random noise. The built-in comparator has a fast settling time, which enables rapid conversion times and accurate results. Additionally, the LTC2351IUH-12#PBF features a low differental nonlinearity (DNL) of 0.7 LSB, ensuring a high degree of linearity.

The LTC2351IUH-12#PBF ADC also offers many features and performance enhancements to the user. It comes with two on-chip 8-bit DACs, allowing for control and reference voltages to be adjusted. Additionally, the LTC2351IUH-12#PBF features internal temperature sensing, enabling it to monitor its own temperature. Lastly, the LTC2351IUH-12#PBF ADC offers integrated power-on reset, allowing it to be easily reset without the need for external reset circuitry.

Conclusion

The LTC2351IUH-12#PBF is an excellent choice for a variety of analog to digital conversion applications. Its high resolution, low power consumption, wide bandwidth, low-frequency noise performance and robust features make it suitable for many high-precision applications. With its wide range of features and performance enhancements, the LTC2351IUH-12#PBF allows for a robust and reliable system design.