LTC1278-5CSW#PBF

Number of A/D Converters:	1
Base Part Number:	LTC1278
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Operating Temperature:	0°C ~ 70°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V, -2.45 V ~ 5.25
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	Parallel
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	500k
Number of Bits:	12
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

The LTC1278-5CSW#PBF analog-to-digital converter (ADC) is a versatile IC designed to accurately convert analog inputs into digital outputs. It is a monolithic device featuring a 16-bit ADC, 5th-order noise-rejection functions and a SPI- or I2C-compatible output. The LTC1278-5CSW#PBF has wide dynamic range and its low-level analog inputs are supported by a low-noise pre-amplifier circuit. This ADC works by quantizing the analog input voltage into a 16-bit digital value.

Application Field

The LTC1278-5CSW#PBF is well suited for a wide range of applications including:* Laboratory instrumentation* Industrial automation systems* Information processing* Automotive industry* Signal processing* Testing and measurement* Medical electronics The ADC is also quite suitable for use in audio applications. Its versatile design makes it compatible with many different platforms and supports both single-ended and differential-ended inputs for a variety of environments.

Working Principle

The LTC1278-5CSW#PBF is an integrated circuit that describes an analog-to-digital conversion process. Inside, it contains an integrated pre-amplifier, analog input multiplexer, a 16-bit successive approximation register-based (SAR) ADC, an analog-to-digital converter, a reference voltage generator, a series of noise-rejection filters, and a clock generator. When an analog voltage is applied to the ADCs input, the integrated pre-amplifier amplifies the input so that the analog-to-digital conversion process can begin. Next, the analog input multiplexer (MUX) selects one of the several analog inputs to be used in the conversion process. The selected analog input is then converted into a digital code. The ADC then begins its 16-bit SAR process. The successive approximation register, in the SAR converter, is essentially an ideal counter that begins with either a ‘1’ or a ‘0’ and counts up or down, based on the analog voltage applied to the ADC. Then the Integral Non Linearity (INL) is calculated by comparing the output from the ADC (digital value) with its ideal output (analog input).Finally, the output of the SAR, after being corrected for gain, offset, and INL, is sent to the digital interface (I2C or SPI) for further processing. With this multi-stage process, the LTC1278-5CSW#PBF is capable of producing high-resolution and high-speed digital outputs from analog inputs.The LTC1278-5CSW#PBF is a high precision and versatile IC that offers an extensive number of features and capabilities. Its wide dynamic range, low-noise pre-amplifier, and 16-bit SAR-based ADC, combined with its support for both single-ended and differential-ended inputs make it an ideal solution for many applications.

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