TLV0834IDG4

Number of A/D Converters:	1
Base Part Number:	TLV0834
Supplier Device Package:	14-SOIC
Package / Case:	14-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:	--
Configuration:	MUX-ADC
Data Interface:	SPI
Input Type:	Differential, Pseudo-Differential, Single Ended
Number of Inputs:	2, 3, 4
Sampling Rate (Per Second):	41k
Number of Bits:	8
Part Status:	Active
Packaging:	Tube

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TLV0834IDG4 is an Analog-to-Digital Converter (ADC) used in a variety of data acquisition applications. The TLV0834IDG4 is a 3.2 V-powered, 8-bit analog-to-digital converter (ADC). It has a single-ended, unipolar input and an SPI serial interface. The TLV0834IDG4 utilizes a low power, low noise CMOS analog front end with a programmable gain amplifier (PGA) to provide up to 8x gain with a ±1 LSB gain error.The TLV0834IDG4 provides a 10-bit resolution with a fast sample rate of 300 ksps. The input is a single-ended unipolar voltage, ranging from 0 V to the power rail. It provides both a differential nonlinearity (DNL) and integral nonlinearity (INL) of less than 1 LSB. It also supports input digital filtering of 2.8 kHz.The TLV0834IDG4 has an SPI port and a three-state output for data transportation. The default SPI data rate is 20 MHz. The SPI mode is set by the DRCTL pin, when set to logic high, the device uses double speed mode. The output of the TLV0834IDG4 can be selected to be 8-bit, 12-bit, or 16-bit. By controlling the DAxx pins, the device can output different resolutions.The TLV0834IDG4 has the following applications:• Motion and vibration sensing• Level sensing• Pressure and force sensing• Measurement of industrial process control signals• Audio signal acquisition• Gas sensing• Security applications• Health monitoring• Sensor signal acquisition• Used for measuring level, flow and temperatureWorking PrincipleThe working principle of TLV0834IDG4 is simple. It uses an Analog-to-Digital (ADC) conversion technology, which converts data from analog to digital. First, an analog signal is connected to the device’s input, then the data is amplified by a programmable gain amplifier (PGA). This amplified signal is then passed through a successive-approximation register (SAR) where it is converted into digital form. The ADC then converts the digital information into a proper output suitable for data transfer.The TLV0834IDG4 has a differential nonlinearity (DNL) of +1/-1, an integral nonlinearity (INL) of -0.5 to +0.5, and a maximum Gain Error (GE) of 1 LSB. It also has a noise-reduction filter that works by setting the gain level of the PGA to the desired value.To control the TLV0834IDG4, several pins are used. These include the MODE, RDY/CS, SPICLK, DOUT, DIN, RDST, DUCT, and SPISEL. The MODE pin is used to select either the 8-bit or 16-bit output mode. The RDY/CS pin is used to initiate a conversion, whereas the SPICLK, DOUT, and DIN pins are used to set the SPI clock frequency (up to 20 MHz) and to transmit the digital data to the outside world. The RDST pin is used to reset the device, whereas the DUCT pin is used to configure the gain setting of the PGA. Finally, the SPISEL pin is used to select between single-ended and differential output modes.In conclusion, the TLV0834IDG4 is an Analog-to-Digital Converter (ADC) that is used in a variety of data acquisition applications. Its wide range of features, high speed, and low power make it an ideal choice for a range of applications, from motion sensing to audio signal acquisition. With a sample rate of 300 ksps and a low gain error of 1 LSB, the TLV0834IDG4 ensures accurate conversion every time.

• Motion and vibration sensing
• Level sensing
• Pressure and force sensing
• Measurement of industrial process control signals
• Audio signal acquisition
• Gas sensing
• Security applications
• Health monitoring
• Sensor signal acquisition
• Used for measuring level, flow and temperature

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