LTC2636CMS-HZ12#PBF

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Data Acquisition - Digital to Analog Converters (DAC) is one of the most vital component subsystems used in various electronic applications. The LTC2636CMS-HZ12#PBF is an example of an advanced and efficient solution that is used to perform specific tasks. The application field and working principles of the device will be discussed in this article.

The LTC2636CMS-HZ12#PBF is a compact, ultra - low power and 24-bit Digital to Analog Converter (DAC) with an on-chip reference, providing high accuracy and low power characteristics. It is suitable for a wide range of applications like automotive, industrial, consumer and portable electronics. The device has excellent linearity and low noise performance.

The DAC features a five-segment current setting circuit that allows the user to precisely control the output current in five steps. It supports an accuracy of +/- 10µA without external current setting resistor. The LTC2636CMS-HZ12#PBF also has 2-wire and 3-wire Serial Peripheral Interface options which make it very suitable for higher levels of integration with external digital controllers and systems.

In terms of technical specifications, the operating temperature range of the LTC2636CMS-HZ12#PBF is - 40°C to +125°C. The output voltage range is 10 mV to 2.5 V. The channel-to-channel match is excellent with a delta-V of less than 0.5 LSB and dynamic performance of 1.5 µs in settling time. The on-board reference has an initial tolerance of 0.4% without trim. The offset error is also very low at ±2 μV.

Working Principle

The LTC2636CMS-HZ12#PBF is a differential input DAC which uses the internal reference to generate an output voltage. The output voltage is proportional to the input digital code value. The device takes in a familiar two-wire serial data input format, and then converts the digital code values into analog current from VREF. The current is then passed through a precision resistor ladder which translates it into a precise analog output voltage.

The device has an internal 8-bit ADC which is used to measure the output voltage. This provides feedback which helps in reducing the nonlinearity error that is present due to the mismatch of the resistors. The internal eight-bit ADC measures the voltage and adjusts it based on the input digital code.

In conclusion, the LTC2636CMS-HZ12#PBF is an advanced and efficient digital to analog converter that is suitable for a wide range of applications. It is characterized by excellent linearity and low noise performance, with a temperature range of -40°C to + 125°C and an output voltage range of 10 mV to 2.5V. The device also has internal 8-bit ADC for precise voltage measurement, a five-segment current setting circuit for precise current control and supports 2-wire and 3-wire Serial Peripheral Interface.

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