ADM7155ARDZ-04-R7 - Ultra-Low Noise, High PSRR, RF Linear Regulator

The ADM7155ARDZ-04-R7 is a state-of-the-art linear regulator from Analog Devices Inc., designed to deliver a precise voltage supply with ultra-low noise performance and high power supply rejection ratio (PSRR). This component is specifically engineered to meet the stringent demands of RF and analog circuits, providing a clean and stable power source that can significantly enhance the performance of sensitive electronic systems.

Key Features:

• Ultra-Low Noise Output: With an output noise as low as 1.0 µV RMS over a 10 Hz to 100 kHz bandwidth, the ADM7155 is ideal for noise-sensitive applications such as PLLs, VCOs, ADCs, DACs, and high-speed amplifiers.
• High PSRR: It offers excellent power supply rejection, minimizing the impact of supply noise on the output voltage. The ADM7155 maintains a high PSRR of 80 dB up to 10 kHz, ensuring a clean supply even in the presence of significant input noise.
• Adjustable Output Voltage: The output voltage range is adjustable from 1.5 V to 5.5 V via an external resistor divider, providing design flexibility for various applications.
• Low Dropout Voltage: The regulator features a low dropout voltage, making it suitable for applications with a small difference between the input and output voltage.
• Thermal Protection: The device includes over-temperature protection, safeguarding the regulator from damage due to excessive heat.
• Package and Temperature Range: The ADM7155ARDZ-04-R7 is offered in an 8-lead SOIC package and is rated for operation over the -40°C to +125°C temperature range, making it suitable for industrial and automotive applications.

Applications:

The ADM7155ARDZ-04-R7 is ideal for powering high-performance analog circuits, RF systems, and other applications where power integrity is crucial. Its excellent noise performance and high PSRR make it a perfect choice for:

• Wireless Infrastructure
• Medical Imaging Systems
• Precision Instrumentation
• Data Acquisition Systems
• Aerospace and Defense Electronics

With its robust design and flexible voltage options, the ADM7155ARDZ-04-R7 from Analog Devices Inc. is a reliable choice for designers looking to enhance the performance and stability of their sensitive electronic systems.