| Allicdata Part #: | DS1867-50+-ND |
| Manufacturer Part#: |
DS1867-50+ |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Maxim Integrated |
| Short Description: | IC POT W/EEPROM DUAL 50K 14-DIP |
| More Detail: | Digital Potentiometer 50k Ohm 2 Circuit 256 Taps S... |
| DataSheet: |  DS1867-50+ Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Memory Type: | Non-Volatile |
| Base Part Number: | DS1867 |
| Supplier Device Package: | 14-PDIP |
| Package / Case: | 14-DIP (0.300", 7.62mm) |
| Operating Temperature: | -40°C ~ 85°C |
| Resistance - Wiper (Ohms) (Typ): | 400 |
| Temperature Coefficient (Typ): | 750 ppm/°C |
| Tolerance: | ±20% |
| Features: | Cascade Pin |
| Voltage - Supply: | 5V |
| Series: | -- |
| Interface: | Serial |
| Resistance (Ohms): | 50k |
| Number of Taps: | 256 |
| Number of Circuits: | 2 |
| Configuration: | Potentiometer |
| Taper: | Linear |
| Part Status: | Obsolete |
| Packaging: | Tube |
Description
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Data Acquisition – Digital Potentiometers is a type of analog signal transducer which are used to measure either linear or rotary analog signal transmission. The most common type of digital potentiometers used in signal transducers applications is the DS1867-50+. This device provides the user with a variable set of resistances, which then can be used to convert an analog signal into the digital domain. This article will discuss the application field and working principle of the DS1867-50+.
The application field of the DS1867-50+potentiometer is quite broad, due to its numerous advantages. This device can be used in systems where a fine resolution of the analog input is required, such as in video cameras and image capture systems, or where an increased accuracy of the analog signal is required, such as in automation systems, audio equalizers and electronic instrumentation systems. Its most popular application, however, is most likely the use in digital displays, where its dual-slope switchable voltage range conversion capabilities and adjustable voltage gains are very desirable.
The DS1867-50+ utilizes a unique dual-slope switching analog-to-digital architecture which includes a precision adjustable linear potentiometer. This potentiometer is calibrated to the optimal value for the application, and then the device can be dynamically adjusted up to the predetermined maximum and minimum levels. In addition, the device provides the user with an adjustable DC offset and adjustable variable full-scale range, allowing for more precise linearization and further range optimization. Finally, the device also features a unique impedance matching feature, which can be used to precisely match any known impedance levels in the application, allowing for precision increases accuracy and improved stability.
The working principle of the DS1867-50+ involves the use of a programmable reference voltage source and a precision adjustable linear potentiometer. The reference voltage is set by the user, and is then varied in order to change the ratio of the two resistive elements, the resistive element and the potentiometer. This ratio is used to set the voltage ranges each side of the potentiometer wiper. The adjustable linear potentiometer then serves as a calibration means to convert the analog signal at any point within the range from the reference voltage to the applied voltage. The output is then fed as a digital signal, where the user can adjust the full-scale range, the DC offset and the impedance, in order to provide an accurate ac or DC voltage output.
In conclusion, the DS1867-50+ digital potentiometer provides the user with a range of advantages, including increased accuracy, increased resolution, adjustable voltage gains and adjustable linearization. These features have enabled the device to become a valuable tool for signal transducer applications in video cameras, image capture systems, automation systems, audio equalizers and electronic instrumentation systems. By utilizing a programmable reference voltage source and a precision adjustable linear potentiometer, the device can convert an analog signal at any point within a range from the reference voltage to the applied voltage, making it an invaluable asset for numerous applications.
The specific data is subject to PDF, and the above content is for reference
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