The TPA135 high-precision current sense amplifier represents a cutting-edge solution for engineers and designers requiring exceptional accuracy and performance in their applications. This current sense amplifier is engineered with a high degree of precision, making it particularly suitable for high-side current sensing applications where exact measurements are crucial. It features an impressively low offset voltage (Vos) of less than 300μV (maximum), which significantly reduces gain error and enhances the reliability of current measurements.
Available in five distinct fixed gain options—20V/V, 50V/V, 100V/V, 200V/V, and 500V/V—the TPA135 offers flexibility and adaptability for a wide range of uses. These gain options allow users to select the optimal configuration tailored to their specific requirements. The device’s low offset voltage, made possible by its zero-drift architecture, ensures that the maximum voltage drop across the shunt resistor can be minimized to just 5mV at full scale. This feature is especially advantageous in applications that demand precise current measurements across a variety of operational conditions.
One of the most notable attributes of the TPA135 is its wide input common-mode voltage range, which extends from -4V to 80V. This extensive range enables the device to be compatible with numerous power systems, facilitating accurate current sensing even in high-voltage environments. Additionally, the TPA135 is equipped with a small signal bandwidth of 1 MHz, making it highly effective for interfacing with Successive Approximation Register (SAR) Analog-to-Digital Converters (ADCs) for small signal conditioning. This capability is essential in applications that require both high-speed and high-precision signal processing.
Designed to operate over an expansive temperature range of -40°C to +125°C, the current sense amplifier TPA135 ensures consistent performance even in the harshest environments. This wide temperature range renders the TPA135 suitable for a variety of demanding applications, including automotive and industrial contexts, where components must endure rigorous conditions. The device is available in an 8-pin Small Outline Package (SOP), providing a compact and efficient form factor that simplifies integration into various systems.
Key Features of the TPA135:
· Offset Voltage: The TPA135 is distinguished by its exceptionally low offset voltage of ±300μV (maximum), which guarantees high accuracy in current sensing applications.
· Wide Common-Mode Voltage Range: Supporting a common-mode voltage range from -4V to 80V, the device offers tremendous flexibility for use in diverse power systems.
· Supply Voltage: With a supply voltage range of 3.0V to 5.5V, the current sense amplifier TPA135 is compatible with various power supply configurations, enhancing its versatility.
· Precision and Zero-Drift Performance: The amplifier delivers outstanding precision, characterized by a ±1% gain error, minimal offset drift (specified in μV/°C), and minimal gain drift (specified in ppm/°C).
· Voltage Output Gain Options: Available in multiple gain configurations, the TPA135 caters to a variety of applications:
o TPA135x1: 20V/V
o TPA135x2: 50V/V
o TPA135x3: 100V/V
o TPA135x4: 200V/V
o TPA135x5: 500V/V
· Rail-to-Rail Output: The device supports rail-to-rail output, increasing its applicability in a broad range of scenarios.
· Operating Temperature Range: Engineered to operate reliably within a temperature range of -40°C to 125°C, the TPA135 is built to withstand extreme conditions.
· AEC-Q100 Qualified: The device meets AEC-Q100 qualification standards, underscoring its suitability for automotive applications.
Applications of the TPA135:
· High-Side Current Sensing: The TPA135 excels in high-side current sensing applications, where accurate measurement of current flow is essential for system functionality and safety.
· Power Management: Ideal for power management applications, the current sense amplifier TPA135 provides precise current measurements that are crucial for optimizing power usage and enhancing efficiency.
· Server Backplanes: The high precision and reliability of the TPA135 make it an excellent choice for server backplane applications, where accurate current sensing is critical to maintaining system stability and performance.
Furthermore, the current sense amplifier TPA135’s high precision, wide common-mode voltage range, and zero-drift performance combine to make it a highly versatile and reliable component. Its extended temperature range and AEC-Q100 qualification further bolster its credentials, making it suitable for the most demanding environments and applications.
In the realm of high-side current sensing, the TPA135 stands out due to its remarkable accuracy and stability. Its ability to deliver consistent performance across a wide range of conditions makes it a preferred choice for engineers looking to implement precise and reliable current sensing solutions in their designs. We also provide the models INA283AID INA283AQDRQ1 for the customers looking for them.
Overall, the TPA135 high-precision current sense amplifier offers a robust and flexible solution for a myriad of applications. Its combination of high accuracy, extensive common-mode voltage range, and exceptional zero-drift performance makes it an indispensable tool for designers and engineers. Whether in automotive, industrial, or server backplane applications, the TPA135 is designed to meet and exceed the rigorous demands of modern electronic systems. More ICs and LCDs, pls visit our official website.
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