DS1806E-100

Memory Type:	Volatile
Base Part Number:	DS1806
Supplier Device Package:	20-TSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C
Resistance - Wiper (Ohms) (Typ):	400
Temperature Coefficient (Typ):	750 ppm/°C
Tolerance:	±20%
Features:	Cascade Pin
Voltage - Supply:	2.7 V ~ 5.5 V
Series:	--
Interface:	Serial
Resistance (Ohms):	100k
Number of Taps:	64
Number of Circuits:	6
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Obsolete
Packaging:	Tube

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Introduction: Data Acquisition-Digital Potentiometers play a vital role in analog signal conditioning and signal generation by measuring and controlling signals. One such device-the DS1806E-100 is a simple yet efficient data acquisition system used for signal conditioning and signal generation. In this article, we will explore its application field, working principle and its advantages. Application Field:The DS1806E-100 is a high-precision digital potentiometer with an analog control and output signal. It has two-wire serial (SPI) interface and is equipped with 15 configurable and differential digital inputs, 2 analog inputs and 2 pulse-width modulated (PWM) output pins. It provides user-selectable digital filter modes with configurable frequency, gain, and offset. It can be used for signal conditioning of various types of analog signals, such as temperature, pressure, and strain readings, as well as noise and vibration signals. It is suitable for use in many applications, such as automatic data tracking, chaining various communication bus systems, switching systems, and motor control, in addition to calibration, testing and measurement systems. It can be used as an adjustable impedance, to modify the frequency response of circuits, to vary the gain in amplifiers, and to aid in ensuring proper signal transfer between stages in a processing system. Working Principle:The DS1806E-100 uses a two-wire serial (SPI) interface. Communications between the device and its controlling system is performed by sending and receiving 3-bit values which are then used to setup any of the 15 bits within a single command. By simply reading and writing to predetermined registers, a multitude of functions are available for set-up and control. The DS1806E-100 has an on-chip Digital Potentiometer feature, which is used to create voltages between 0-3V that are set by the user. The Potentiometer has a variable resistance element, which is adjusted by the user to suit the application. The variable resistance is created by adding fixed resistors in series with each other. The Potentiometer also has an adjustable gain, which is provided by a digital-to-analog converter. This feature allows the user to adjust the gain without having to adjust the resistance of the potentiometers. The Potentiometer also has an adjustable offset, which is used to provide an adjustable range of voltages from 0 to 3V.The signal from the Potentiometer is fed into a signal conditioning circuit, which is then sent to the processor for processing. The signal conditioning circuit regulates the signal level to ensure that any noise or spikes in the signal are filtered out, thus ensuring that only relevant signals are used for processing. The DS1806E-100 has an additional feature, which is the Pulse-Width Modulated (PWM) output. This allows the user to control the output frequency of the device, thus providing additional control over the signal processing system. Advantages: Amongst the many advantages the DS1806E-100 has, its adjustable gain and offset are the most noteworthy. It gives the user the ability to fine-tune the signal conditioning circuit, thus providing more accurate signals which can be used for further processing. The DS1806E-100 also offers increased flexibility in controlling the device. It makes it possible to chain multiple devices together using a single serial port, which allows the user to mount multiple DS1806E-100 devices on a single board. This reduces the amount of cabling and makes the setup simpler and cost effective.The DS1806E-100 is also capable of data logging, thus providing more precise measurements and the ability to monitor changes in the signal more closely.The DS1806E-100 is a highly versatile, efficient and cost-effective data acquisition system and is ideal for a variety of uses. Its simple yet effective design makes it a reliable and user-friendly device.Conclusion: The DS1806E-100 is a reliable and user-friendly device for data acquisition. Its adjustable gain and offset, as well as its Pulse Width Modulated output, makes it an ideal choice for signal conditioning and signal generation. The ability to chain multiple devices via a single serial port, and its data logging capabilities further enhances its utility. Its simple yet effective design makes it a dependable and cost effective device.

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