
Allicdata Part #: | DS3501U+T&R/H-ND |
Manufacturer Part#: |
DS3501U+T&R/H |
Price: | $ 0.51 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC POT NV 128POS HV 10-USOP |
More Detail: | Digital Potentiometer 10k Ohm 1 Circuit 128 Taps I... |
DataSheet: | ![]() |
Quantity: | 1000 |
3000 +: | $ 0.46633 |
Memory Type: | Non-Volatile |
Base Part Number: | DS3501 |
Supplier Device Package: | 10-uMAX |
Package / Case: | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
Operating Temperature: | -40°C ~ 100°C |
Resistance - Wiper (Ohms) (Typ): | 5000 (Max) |
Temperature Coefficient (Typ): | ±4 ppm/°C |
Tolerance: | ±20% |
Features: | Selectable Address |
Voltage - Supply: | 2.7 V ~ 5.5 V, 4.5 V ~ 15.5 V |
Series: | -- |
Interface: | I²C |
Resistance (Ohms): | 10k |
Number of Taps: | 128 |
Number of Circuits: | 1 |
Configuration: | Potentiometer |
Taper: | Linear |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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Data Acquisition - Digital Potentiometers is the basis for the implementation of the DS3501U+T&R/H application field and working principle.
The DS3501U+T&R/H (U+T&R/H) is a digital potentiometer application from Silicon Laboratories (SiLabs). It is a three-channel, single-chip, autonomous linear tracking potentiometer that is widely used for applications such as audio volume control, analog gain control, and current feedback control.
The U+T&R/H potentiometer is built with three voltage output channels, each of which has a separate linear tracking input and 256 taps. The three channels are divided into two channels (center-tapped) and a third channel on its own. The output impedance of each channel is typically 400 ohms +/-10 % and the output current capability is typically 20 mA. The input sense and digital logic is built into the device.
The U+T&R/H can be used in a variety of different applications such as audio volume control, analog gain control, and current feedback control. For audio volume control, the device offers a smooth and linear response to the change in the volume control setting. The selection of the current value output is done via two digital pins, and the analog output is continuously generated for the varied current values. Similarly, for analog gain control, the device can be used to give a linear tracking of the control setting over the desired range for audio gain control, and the gain value can be adjusted through two control pins.
For current feedback control, the device is used to adjust the current values within the specified range. The tracking characteristic is also maintained in this case and a separate current control pin is provided to adjust the reference current. This is done through the built-in NMOS FET switches in the device.
Apart from the above applications, the U+T&R/H can also be used in other applications such as substitution of analog potentiometers, printer head position control, head stabilization for optical storage devices, and tracking of current values for power controllers.
The working principle of the U+T&R/H involves the use of the two digital pins to set the current output and the analog output to be generated continuously as the voltage input to the device changes. This allows for the control of the current values within the specified range with a very accurate tracking characteristic. The U+T&R/H can be powered by a supply voltage as low as 1V and is capable of delivering an output current up to 20 mA.
With its built-in switches, the device can provide an analog output or a digital output or both. In the case of the analog output, it is the result of the complex interaction between the voltage input, the switch positions and the built-in circuit. The digital output from the device can be provided in either PWM (pulse-width modulation) or I2C format.
The device also offers a variety of protection features, such as input protection for over-voltage and over-current conditions, current limiting in order to protect from over-current conditions and ESD protection.
Overall, the DS3501U+T&R/H application field and working principle of digital potentiometers is quite extensive and the device is a very useful tool for a variety of different applications. With its range of features and excellent tracking characteristics, the U+T&R/H is one of the most popular digital potentiometer applications currently available in the market.
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