LTC1865LAIS8#TRPBF

Number of A/D Converters:	1
Base Part Number:	LTC1865
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 3.6 V
Voltage - Supply, Analog:	2.7 V ~ 3.6 V
Reference Type:	External
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	MUX-S/H-ADC
Data Interface:	SPI
Input Type:	Single Ended
Number of Inputs:	2
Sampling Rate (Per Second):	150k
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LTC1862LAIS8#TRPBF is an analog-to-digital converter (ADC) manufactured by Linear Technology. It is a low cost, high performance ADC which provides low latency, high accuracy and is suitable for a wide variety of applications. The LTC1862LAIS8#TRPBF is a bipolar, low power ADC which can convert input voltages up to ±10 V range.

Application Field

The LTC1862LAIS8#TRPBF features a wide range of applications and is especially well suited for data acquisition systems. It can be used to measure signals from sensors, medical systems, test instruments, and process control systems. In addition to its data acquisition applications, it can be used for signal conditioning and for building analog-to-digital signal converters.The ADC is also well suited for industrial automation applications. The low power design and wide temperature range make it an ideal solution for embedded systems such as Programmable Logic Controller (PLC) control systems. The high speed of the ADC makes it suitable for multiplexing signals from multiple sources.

Working Principle

The LTC1862LAIS8#TRPBF is a low power, bipolar, analog-to-digital converter which can convert input voltages up to ±10 V range. The converter utilizes a two stage process to convert analog signals into a digital signal.The first stage is the sample-and-hold stage, wherein the analog signal is sampled and stored in a capacitor. After the signal has been sampled, it is processed by the second stage which converts the sampled signal into a digital signal. This is accomplished through an analog-to-digital conversion process which involves two main steps: analog-to-pulse-width-modulation (PWM) and PWM-to-digital conversion. The analog-to-PWM conversion produces a pulse width that is proportional to the analog voltage. This pulse width is then modified and encoded into a digital code that is mapped to the input voltage range.

Conclusion

The LTC1862LAIS8#TRPBF is an ideal solution for a variety of application fields, including data acquisition, signal conditioning, industrial automation, and embedded systems. The low power, wide temperature, and high speed characteristics of the ADC make it suitable for a wide variety of applications. Additionally, its two stage sample-and-hold and analog-to-digital conversion process provides a low latency, high accuracy solution.

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