LTC2152CUJ-14#PBF

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Data Acquisition - Analog to Digital Converters (ADC) are widely used in various industrial and consumer applications to convert analog signals into digital signals. The LTC2152CUJ-14#PBF is an integrated circuit developed by Linear Technology Corporation, a subsidiary of Analog Devices, which can accurately convert an analog signal into a digital code. This application note details its application field and working principle.

The LTC2152CUJ-14#PBF is an Analog-to-Digital Converter (ADC) optimized for low power operation. It is designed to operate over a wide supply range of 1.8V to 5.5V and has a maximum power consumption of 150mW during full-speed operation. This makes the LTC2152CUJ-14#PBF ideal for applications where power consumption is a primary concern. It features an integrated sample-and-hold circuit to allow continuous analog signal sampling, as well as slew rate control to reduce power consumption.

The LTC2152CUJ-14#PBF contains a 14-bit, low power, two-step sigma-delta ADC. It has a conversion rate of up to 2MHz and a maximum differential input range of ±2V. The ADC includes four on-chip gain stages to accommodate differential input voltages in the range of ±50mV to ±2V. All four stages have been optimized for low power consumption, with a maximum power consumption of 12mW.

The integrated sample-and-hold circuit of the LTC2152CUJ-14#PBF allows the ADC to maintain a tiny acquisition time and low power consumption. The circuit is designed to minimize charge injection errors, which leads to very low noise conversion performance with no external components. It operates at a fixed 2MHz sample rate and includes a slew rate control bit that can be used to reduce power consumption.

The LTC2152CUJ-14#PBF operates from a 1.8V to 5.5V supply voltage range and is specified for temperature ranges from -40°C to +85°C. The integrated Reference Trim circuit provides a unique self-calibration feature of ±1.25% accuracy. This circuit can also be used to reduce the total power consumption.

The LTC2152CUJ-14#PBF has a wide range of applications in a variety of industrial and consumer applications. It can be used in medical instrumentation, medical imaging systems, battery-operated applications, automotive systems, portable data acquisition systems, and more. The chip is also suitable for audio and video systems, as well as data acquisition and control. It supports a range of bus architecture including (SPI, I2C, LVDS, and HILO)

In summary, the LTC2152CUJ-14#PBF is an integrated circuit developed by Linear Technology Corporation for low power applications. It has a 14-bit two-step sigma-delta ADC with a maximum differential input range of ±2V and a maximum power consumption of 150mW during full-speed operation. It includes an integrated sample-and-hold circuit and slew rate control to minimize the power consumption. It is suitable for a wide range of applications such as medical instrumentation, portable data acquisition and audio/video systems.

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