ADS8354IPWR

Number of A/D Converters:	2
Base Part Number:	ADS8354
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 125°C
Features:	Simultaneous Sampling
Voltage - Supply, Digital:	1.65 V ~ 5.5 V
Voltage - Supply, Analog:	5V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	SPI
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	700k
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Data Acquisition - Analog to Digital Converters (ADC)

Analog to Digital Converters (ADC) play a vital role in data acquisition as they are used for acquiring analog signals encoding varying physical quantities such as temperature, pressure, voltage, etc. and convert them into a digital form which can be processed by computers. The ADS8354IPWR is an integrated precision quad 14-bit ADC developed by Analog Devices. It is designed to be implemented in wide range of applications such as data acquisition systems, digital prepaid meters, multimedia audio and video equipment, video streaming, gaming systems, automotive systems, medical instruments, portable instruments and industrial control systems.The ADS8354IPWR is an ultra-low power, quad 14-bit, precision SAR (Successive Approximation Register) ADC with an over-sampling option for higher resolution and better noise performance. It allows simultaneous sampling of up to four input signals with one device and supports a wide analog input voltage range of ±10V. It is also equipped with low voltage and high temperature operation with excellent dynamic performance, making it suitable for a wide range of industrial, medical and automotive applications.The ADS8354IPWR’s SAR architecture enables high accuracy and low power dissipation. Its architecture is based on an array of charge redistribution capacitors, each representing a bit of the encoded digital word. The capacitor array is connected to an input voltage divider network which is usually used as a source-following/filter circuit. The output codes of the SAR are determined by the magnitude of the input voltage and the analog voltage is converted to a digital word by the successive approximation method. The digital output word of the ADC is stored in a register that is updated with each conversion cycle.The ADS8354IPWR’s integrated sampling network eliminates the need for an external sample and hold circuit and reduces the overall system power and design complexity. Its integrated high-accuracy reference allows for excellent linearity and eliminates the need for external voltage reference and makes the device quite stable over a wide temperature range. The device has a built-in temperature sensor and reference voltage which is used to monitor the device operating temperature and compensate the ADC’s output accordingly.The ADS8354IPWR is also equipped with a built-in multiplexer, allowing for configuration of up to four input channels for simultaneous sampling. The multiplexer also features selectable control, making it suitable for automatic control, data acquisition, sensing, or measuring applications. The device supports two input ranges which provide improved dynamic performance over a wide variety of input signals and enable it to operate with a wide range of input signals.In summary, the ADS8354IPWR is an integrated quad 14-bit precision SAR ADC which provides simultaneous sampling of up to four input signals with excellent dynamic performance in a wide range of applications. Its integrated sampling network eliminates the need for an external sample and hold circuit, while its integrated reference ensures excellent linearity over a wide temperature range. The device also has a built-in temperature sensor, multiplexer and selectable control, making it suitable for a variety of applications.

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