LTC2142IUP-12#TRPBF

Data Acquisition - Analog to Digital Converters (ADC)

The LTC2142IUP-12#TRPBF is a low-power and high-speed, 12-bit, serial-output, CMOS analog-to-digital converter (ADC) with sampling speeds up to 65MSPS. The part is offered in a 5mm x 5mm LFCSP package and operates across a single 1.8V power supply. It is ideal for applications such as test and measurement systems, communications, medical imaging systems, and other low-cost data acquisition systems.

Features

• Low-Power: 900μA max at 65MSPS
• Single 1.8V Power Supply
• Up to 65 MSPS Conversion Rate
• Integrated Input Buffer
• LTC Low-Power Speed-Grade with 65 MSPS Sampling
• Low ANCVCC Pin Jitter Sensitivity
• No Missing Codes
• Rad Hard Qualified Models

The LTC2142IUP-12#TRPBF offers a number of advantages over other ADC solutions on the market. Its low power consumption, fast conversion rate, and low protocol jitter sensitivity make it ideal for power-conscious high-speed applications. Additionally, its small package size makes it suitable for space-restricted applications.

In terms of its applications, the part is commonly used for automated test equipment, ultrasound imaging and spectroscopy, communications systems, and other data acquisition systems. It is also used in applications where power efficiency is important, such as battery-powered wireless systems and portable electronics.

Working Principle

The LTC2142IUP-12#TRPBF utilizes a capacitively coupled input stage to reduce power consumption. The input stage provides up to 20 Vp-p offset-free input range and delivers a noise-free signal to the internal amplifier. The internal amplifier contains a gain stage and a low-pass filter, which sets the input signal for the sample-and-hold circuit. This circuit converts the analog signal to a digital code. The part contains an internal voltage reference, which sets the size of the output codes. The output codes are configured accordingly and the output digital data is then delivered to the serial SPI port.

The LTC2142IUP-12#TRPBF also features flexible digital control functions. It contains an asynchronous reset pin, register and address map control pins, and digital testpoints. The control pins allow for simple control and configuring of the part with minimal external components. Additionally, it features a low on-chip jitter and low latency conversion, making it suitable for high-speed and low-latency applications.

The LTC2142IUP-12#TRPBF is engineered using the latest CMOS and BiCMOS processes and is fully specified over the commercial and industrial temperature ranges. It is available in a 5×5 mm TQFP package and is ideal for applications that require efficient sampling rates and low power consumption.