ADS1115BQDGSRQ1 Integrated Circuits (ICs)

Ratio - S/H:ADC:	0:1
Supplier Device Package:	10-VSSOP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C
Features:	PGA
Voltage - Supply, Digital:	2 V ~ 5.5 V
Voltage - Supply, Analog:	2 V ~ 5.5 V
Reference Type:	Internal
Architecture:	Sigma-Delta
Number of A/D Converters:	1
Series:	Automotive, AEC-Q100
Configuration:	MUX-PGA-ADC
Data Interface:	I²C
Input Type:	Differential, Single Ended
Number of Inputs:	2, 4
Sampling Rate (Per Second):	860
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADS1115 is an intelligent, low-power, 16-bit analog-to-digital converter (ADC). Its gains and offset to allow us to do 2.0V→18V conversion with a resolution of up to 1uV. ADS1115 has 8-bit parallel, I2C and SPI interfaces, which can be very convenient for data acquisition. Compared with other sixteen-bit ADCs, ADS1115 has excellent dynamic performance, low noise and resist high sampling frequency. Application field and working principle of ADS1115BQDGSRQ1 as follows:

Application Field

Due to the advantages of ADS1115, like low power and high accuracy, it can be widely used in various applications including industrial data acquisition, environmental measurement, and medical instrumentation etc. For examples, in industrial process control, the responses of process must be accurately measured and monitored. ADS1115BQDGSRQ1 can accurately measure the amplitude and frequency of the input signals, then output the digital data for operating machinery. In medical instrumentation, many medical equipments require precise control and measurement. ADS1115 can be used to measure biological signals like heart rate, respiration rate and so on. Thus, it provides an efficient way for people to pursuit a healthy life. In other words, it can be said that ADS1115 is a very helpful "doctor".

Working principle

ADS1115BQDGSRQ1 is based on Sigma-delta analog-to-digital conversion technology. In simple terms, its analog-to-digital conversion process consists of the following steps:1. The first step is that the analog signal is sampled with the sampling capacitor.2. The low-pass is used to filter the signal to prevent the alteration of frequency before sampling.3. Then, with the signal comparator, the sampled signal is compared with the reference signal to lower the signal distortion brought by the low-pass filtering.4. Finally, the output data is encoded using the successive approximation algorithm and a corresponding digital signal is output after conversion.In summary, the ADS1115BQDGSRQ1 is an ideal employed for analog-to-digital conversion in various applications. Its low power consumption and excellent dynamic performance make it an ideal choice for many applications.

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