Number of A/D Converters:	1
Base Part Number:	LTC2412
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Reference Type:	External
Architecture:	Sigma-Delta
Series:	microPOWER™
Ratio - S/H:ADC:	--
Configuration:	MUX-ADC
Data Interface:	SPI
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	7.5
Number of Bits:	24
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

The LTC2412IGN#PBF (“LTC2412”) is an integrated circuit (IC) that performs analog-to-digital conversion. As a type of data acquisition device, its main function is to read electrical signals and process that data into a digital representation which can then be used by other computer systems. This article will discuss the application fields and working principles of the LTC2412 in detail. The LTC2412 is primarily used in applications that require low-power and fast analog-to-digital conversion such as automotive, medical, industrial, and consumer-based systems. In automotive systems, it can be used to detect incoming voltage signals from fuel injectors or other components and convert that data into digital signals which can then be analyzed by an onboard computer. In medical systems, it can be used to monitor and measure vital signs such as pulse, heart rate, and temperature. In industrial and consumer based systems, it can be used to measure the ambient temperature or humidity of a given environment. The LTC2412 is a dual-channel, high-speed, low-noise, analog-to-digital converter that features an onboard reference. It has an input voltage range from -0.3V to +2.6V and can produce 7-bit, 10-bit, or 12-bit resolution depending on the accuracy needed for the application. Its high-speed sampling rate has a maximum of 600kSPS, making it suitable for high-speed data acquisition. The LTC2412 also offers a wide dynamic range, adjustable gain factors, and a fully differential input architecture which reduce the noise and distortion errors encountered with standard single-ended input solutions. In terms of operation, the LTC2412 has a typical sample-and-hold architecture. In this mode, the input signal is sampled at a certain frequency and then held while the analog-to-digital conversion is done. The LTC2412 also supports a free-running architecture, in which the input signal can be sampled continuously and the conversion is done as each sample is taken in. The LTC2412 uses an advanced delta-sigma modulator and data acquisition technique, which allows for a much higher noise immunity than other types of analog-to-digital converters. The delta-sigma modulator works by taking multiple lower resolution samples of the input signal and then using a sigma-delta algorithm to combine them into a single higher-resolution signal. This technique reduces quantization noise, as well as provides a much higher signal-to-noise (SNR) ratio. Finally, the LTC2412 features an integrated 3.2V voltage reference which can be used to provide a reference voltage for the onboard analog-to-digital converter. This reference can be used to set a specific zero-point for the analog signal, or to provide a known small-signal dynamic range to an external signal which can then be converted into a digital value. Overall, the LTC2412 provides a high-speed, low-noise, low-power, integrated analog-to-digital converter solution for a variety of data acquisition applications. It is suitable for high-performance systems such as automotive, medical, industrial, and consumer-based systems. Its combination of features make it well-suited for a wide range of applications which require analog-to-digital conversion solutions.

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