LTC2271CUKG#PBF

Number of A/D Converters:	2
Base Part Number:	LTC2271
Supplier Device Package:	52-QFN (7x8)
Package / Case:	52-WFQFN Exposed Pad
Operating Temperature:	0°C ~ 70°C
Features:	Simultaneous Sampling
Voltage - Supply, Digital:	1.7 V ~ 1.9 V
Voltage - Supply, Analog:	1.7 V ~ 1.9 V
Reference Type:	External, Internal
Architecture:	Pipelined
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	LVDS - Serial
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	20M
Number of Bits:	16
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

Analog to Digital Converters (ADC) are essential electronics components that convert analog signals into discrete digital signals. The LTC2271CUKG#PBF is an excellent ADC designed for high-performance data acquisition applications. This article will discuss the application field, features and working principle of the LTC2271CUKG#PBF.

Application Field

The LTC2271CUKG#PBF is a high-resolution, low latency, low power, 12-bit Analog to Digital Converter (ADC). This device is ideal for demanding data acquisition applications, such as vibration analysis, audio processing, medical imaging, and test and measurement equipment.

Features

The LTC2271CUKG#PBF is a 12-bit, monolithic low power, high-performance analog-to-digital converter. It is capable of sampling rates up to 160MSPS. In addition, the device contains input circuitry to amplify and buffer a differential/single-ended input signal. It also has an off-chip clock synthesizer, which allows for using external references or internal voltage references for conversion.The LTC2271CUKG#PBF has an architecture that allows for low latency, low power operation and a high SNR on noisy inputs. It also features adjustable input sample timing, which allows for adaptation to different input signal frequencies.

Working Principle

The LTC2271CUKG#PBF works by converting analog signals into discrete digital signals using a sampling and quantization process. The converter samples the input signal at regular intervals, and the amplitude of the sampled signal is compared to a reference voltage. The digital output is determined by the differences in the amplitudes of the reference voltage and the sampled signal.The converter consists of a Programmable Gain Amplifier (PGA), a sample-and-hold (SH) stage, an Analog-to-Digital Converter (ADC), and an on-chip voltage reference. This voltage reference provides a known level against which the input signal is compared.The PGA receives the input signal and amplifies it to the desired reference level. The sample-and-hold stage samples the input signal at regular intervals and stores it until the next sampling cycle. The sample-and-hold is designed to minimize errors due to the time delay between sampling and the actual ADC conversion.Finally, the ADC takes the sample-and-hold output and converts it into a discreet digital word. The digital word is obtained from the most significant bit (MSB) of the reference voltage. The less significant bit (LSB) is obtained from the least significant bit of the reference voltage. The resulting digital word is passed to the output pins of the ADC.

Conclusion

The LTC2271CUKG#PBF is an excellent ADC designed for demanding data acquisition applications. It is a 12-bit, monolithic low power, high-performance Analog-to-Digital Convertor capable of sampling rates up to 160MSPS. Its architecture allows for low latency and low power operation, while providing a high SNR on noisy inputs. The LTC2271CUKG#PBF is an ideal device for applications such as vibration analysis, audio processing, medical imaging, and test and measurement equipment.

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