LTC2247IUH#PBF

Number of A/D Converters:	1
Base Part Number:	LTC2247
Supplier Device Package:	32-QFN (5x5)
Package / Case:	32-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 3.4 V
Voltage - Supply, Analog:	2.7 V ~ 3.4 V
Reference Type:	External, Internal
Architecture:	Pipelined
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	Parallel
Input Type:	Differential, Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	40M
Number of Bits:	14
Part Status:	Active
Packaging:	Tube

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Introduction

Data acquisition covers a wide range of disciplines, from sensing electrical signals and measuring physical parameters to storing digital data. One of the most important elements of data acquisition is the analog to digital converter (ADC). In this article, we will look at the application field and working principles of the LTC2247IUH#PBF ADC.

Applications of the LTC2247IUH#PBF

The LTC2247IUH#PBF is a low power, low voltage mid-speed dual ADC. It is designed to deliver high resolution and excellent performance. It is typically used in high performance analog applications such as medical imaging and instrumentation, military avionics and test and measurement systems.The LTC2247IUH#PBF is a low power, low voltage mid-speed dual ADC. It is designed to deliver high resolution and excellent performance. It features an input range of ±2.7V, a sampling rate of up to 10MHz and a conversion time of 10µs. Additionally, it has two independent 8-bit ADCs which can acquire two separate signals simultaneously. This converter is designed specifically for applications that require high resolution and low power consumption. As such, it is ideal for signals with a wide dynamic range and low noise. Examples of such signals include ECG and EEG, seismic or other vibrations, or low level low frequency signals.

Working Principle of the LTC2247IUH#PBF

At the heart of the LTC2247IUH#PBF is a high speed, low power, dual 8-bit converter with two independent full scale ranges of ±2.7V and two sample-and-hold stages.The two integrated sample-and-hold stages enable the two independent 8-bit ADCs to acquire two separate signals simultaneously. Each of these stages has an independent switch and an adjustable capacitor to optimize the hold-mode sampling frequency. The input range of the two ADCs is always ±2.7V, regardless of the input signal frequency.In order to minimize power consumption, the LTC2247IUH#PBF contains an advanced low power digital control circuitry, which allows the ADCs to enter a low power hold mode. In this mode, the input stage is isolated so that little power is consumed when no input signal is present.The results of the ADCs are output as digital codes, which can be read over a 4-wire serial interface. The 8-bit word width of the ADCs allows for the conversion of an input signal in the range of ±2.7V, with a resolution of 0.39mV.

Conclusion

The LTC2247IUH#PBF is a low power, low voltage mid-speed dual ADC. It is designed to deliver high resolution and excellent performance and is ideal for applications that require high resolution and low power consumption. It features an input range of ±2.7V, a sampling rate of up to 10MHz and a conversion time of 10µs. Additionally, it has two independent 8-bit ADCs which can acquire two separate signals simultaneously. It is typically used in high performance analog applications such as medical imaging and instrumentation, military avionics and test and measurement systems.

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