LTC1665IN#PBF

Reference Type:	External
Base Part Number:	LTC1665
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C
Architecture:	Oversampling Interpolating DAC
INL/DNL (LSB):	±0.2, ±0.1
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Series:	--
Data Interface:	SPI
Differential Output:	No
Output Type:	Voltage - Unbuffered
Settling Time:	30µs (Typ)
Number of D/A Converters:	8
Number of Bits:	8
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Digital to Analog Converters (DAC): The LTC1665IN#PBF Application Field and Working Principle

Digital-to-Analog converters (DAC) are essential components for any industrial application and are used in a wide range of data acquisition applications. One such DAC is the LTC1665IN#PBF, which was developed by Linear Technology. This device provides high accuracy, fast conversion rate and low power consumption. It is designed to be used in Automotive, Industrial, Medical and Military applications, as well as in home and office monitoring systems.The LTC1665IN#PBF is a 4-bit, high performance digital-to-analog converter. It uses an advanced, 12-bit, source-synchronous data bus along with a 17-bit linear feedback shift register (LFSR) for conversion between the digital and analog signals. The device is capable of operating at up to 800 Hz with a maximum resolution of 12-bit.The LTC1665IN#PBF features an on-chip power-on reset and ramping circuits, and is able to take analog input voltages between 0 V and 10 V. The device also provides an integrated, individual DAC channel output selector, enabling the user to select any two of the four analog outputs with a single control line.The overall design of the LTC1665IN#PBF is based on a variable-resistance incremental DAC topology. The basic principle behind this topology is to use a bank of resistors configured in series, with each resistor at a higher voltage than the one before. An analog voltage is created by controlling the resistor at each step, and the output voltage is proportional to the summation of all the steps. This allows for very high resolution and accuracy, with the added benefit of low power consumption.In order to convert the digital input information into an analog signal, the LTC1665IN#PBF uses a resistive digital-to-analog converter (RDAC). This is accomplished by multiplexing the data into the proper bit-select lines and then activating the proper combination of resistors from the resistor bank. This provides a unique output voltage that is proportional to the digital input data.The LTC1665IN#PBF is suitable for use in a wide range of applications, due to its versatile features. It can be used in applications such as motor control, instrumentation, power converters, acoustics, audio and video, and other general-purpose analog signal processing. The device is also ideal for applications that require low power consumption and high accuracy.The LTC1665IN#PBF is a robust and reliable device, with an extended temperature range of -40℃ to +125℃. It is equipped with various protection circuitry to ensure reliable operation, including ESD protection and over-temperature protection. The device also includes an input voltage clamp, to limit the peak voltage level of the analog inputs, as well as a power-down circuitry for energy savings.Overall, the LTC1665IN#PBF is a high-performance, low-power digital-to-analog converter, suitable for use in a wide range of applications. It offers fast conversion rate, high accuracy, and reliable operation over an extended temperature range. With its versatile features and extensive protection circuitry, the device is ideal for applications requiring reliable high-performance and low-power consumption.

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