LTC2634CMSE-LMI8#PBF

Reference Type:	External, Internal
Base Part Number:	LTC2634
Supplier Device Package:	10-MSOP-EP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Operating Temperature:	0°C ~ 70°C
Architecture:	--
INL/DNL (LSB):	±0.05, ±0.5 (Max)
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 - Buffered
Settling Time:	3.3µs (Typ)
Number of D/A Converters:	4
Number of Bits:	8
Part Status:	Active
Packaging:	Tube

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Introduction: LTC2634CMSE-LMI8#PBF

The LTC2634CMSE-LMI8#PBF is an 8-channel high voltage, rail-to-rail output digital-to-analog converter (DAC) designed for data acquisition applications. The device operates over an analog supply range of 10V to 8V and a digital supply range of 1.8V to 5.5V. It includes a 2.5V to 8.5V buffered reference output, allowing for single supply operation. The LTC2634CMSE-LMI8#PBF features a true rail-to-rail output with both DAC outputs reaching the rail at the same time, and can operate on a wide temperature range of -40°C to +125°C. The device also features SPI, I2C and Microwire digital interfaces.

Application Field:

The LTC2634CMSE-LMI8#PBF is ideally suited for data acquisition applications. It is suitable for use in a wide range of applications including industrial monitoring and control, medical imaging/diagnostic systems, data acquisition systems, motor control systems, and consumer appliance applications. Additionally, the device is also suitable for process automation, HVAC systems, test and measurement, motor control, and robotics applications.

Working Principle:

The LTC2634CMSE-LMI8#PBF converts digital data into analog voltages. The device uses a voltage output DAC architecture which provides a true rail-to-rail output by driving both sides of each output to the rails simultaneously. This allows for low voltage operation, low consumption, and fast settling time.The device requires a digital code to be written to the control input. The digital code is proportional to the desired output voltage, and each code step represents a voltage step. The digital code is written over the digital interface and can be updated at any time.The LTC2634CMSE-LMI8#PBF is designed to provide high output accuracy and inter-channel accuracy, while providing low output noise and distortion. It also features digital isolation and thermal protection to ensure the accuracy is maintained over temperature and process variation, and provides additional safety features.

Conclusion:

The LTC2634CMSE-LMI8#PBF is a high voltage, rail-to-rail output digital-to-analog converter ideal for data acquisition applications. It features a wide supply range, true rail-to-rail output, wide temperature range, and multiple digital interfaces. The device provides high accuracy and inter-channel accuracy, low output noise and distortion, digital isolation and thermal protection, and additional safety features.

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