ADA4857-1YR-EBZ

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The ADA4857-1YR-EBZ evaluation board is an operational-amplifier (op-amp) evaluation board from Analog Devices Automotive Analog Products. The evaluation board provides a versatile platform for testing and evaluating op-amp performance in applications such as automotive, industrial, and instrumentation.

Application Field

The ADA4857-1YR-EBZ evaluation board is designed to evaluate the performance of Analog Devices’ op-amps in automotive, industrial, and instrumentation applications. Automotive applications may include temperature sensing, voltage and current sensing, power supply design, and signal conditioning. Industrial applications range from motor control and HVAC systems to electric vehicles and Factory Automation. Instrumentation applications may also include measurement and control of pressure, temperature, and other process or environmental parameters.

Working Principle

Analog Devices’ ADA4857-1YR-EBZ evaluation board is based on ADA4857, an op-amp from Analog Devices’ Automotive Analog product lineup. The board is designed to be a generic evaluation platform, allowing for tests and evaluations of various applications. This evaluation board kit contains components and necessary circuitry to operate the device, including a power source, connectors, switch, and resistor networks.

The device operates within a supply voltage range of 4V to 26V and draws a maximum current of 250mA. The device includes an on-board, adjustable connecting bridge between the input and output terminals. This connecting bridge can be used to provide a variable gain from 1V/V to 200V/V with 0.01V/V resolution. The device also has an enable/ disable pin that allows for efficient on-off switching.

The evaluation board also includes adjustable slew rate and gain-bandwidth product controls, as well as a power-on reset function. It supports EMI-susceptible applications and includes 3 levels of protection against EMI, over-current, over-temperature, and reversed inputs. Temperature ranges from -40°C to +105°C. The output voltage is optimized for load caps of 0.1nF to 1µF.

The device also includes an input offset voltage of approximately ±75µV. The maximum common-mode input range is 0.2V to VCC-2V, while the maximum output swing is from VEE +1V to VCC-1V. Additionally, it includes an on-board enable/disable switch that can be used to quickly control the state of the device.

The ADA4857-1YR-EBZ evaluation board can be used to evaluate and optimize numerous op-amp applications for automobile, industrial, and instrumentation applications. The evaluation board is designed to provide an easy-to-use platform for testing and evaluating performance of Analog Devices\' op-amps.

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