**ADM7160AUJZ-8-R7: An Ultra-Low-Noise, High-PSRR 8V LDO Voltage Regulator**
In the realm of precision electronics, the stability and purity of a power supply are paramount. Noise, ripple, and fluctuations from the input source can severely degrade the performance of sensitive components like RF transceivers, high-resolution ADCs, and precision analog sensors. Addressing this critical need, the **ADM7160AUJZ-8-R7** stands out as a premier solution: a high-performance, 8V output, ultra-low-dropout (LDO) linear voltage regulator engineered to deliver exceptionally clean and stable power.
**Uncompromising Noise Performance**
A defining characteristic of the ADM7160 is its **ultra-low output noise** performance. It achieves a remarkably low noise level of **1.8μV RMS** (typical, 10Hz to 100kHz) without requiring an external bypass capacitor. This is crucial for powering noise-sensitive circuitry where even minor power supply perturbations can introduce errors, reduce dynamic range, or increase the bit error rate in communication systems. By integrating the noise-reduction circuitry on-chip, the ADM7160 simplifies design-in while guaranteeing superior performance.
**Exceptional Power Supply Rejection**
Equally impressive is the device's **high Power Supply Rejection Ratio (PSRR)**. It maintains a PSRR of **80dB** at 10kHz, effectively acting as a formidable barrier against input voltage disturbances. This means any ripple or noise originating from upstream converters (like a switching regulator) or from the main power bus is attenuated before it reaches the load. This high PSRR ensures that the regulated output remains immune to input variations, providing a pristine voltage rail essential for high-fidelity audio, medical instrumentation, and test and measurement equipment.
**Key Features and Robust Design**
The ADM7160 is designed for a wide input voltage range from 2.8V to 13.2V, providing ample headroom for a variety of applications. Its **low dropout voltage** of 200mV (typical) at a 500mA load maximizes efficiency and allows it to continue regulating even when the input voltage dips close to the output level, preserving system operation during power transients.
Housed in a compact, low-profile **5-lead TSOT package**, the device is suitable for space-constrained PCB designs. It incorporates comprehensive protection features, including **current limiting and thermal shutdown**, safeguarding both the regulator and the load under fault conditions. The fixed 8.0V output version (ADM7160AUJZ-8-R7) offers design simplicity and reliability by eliminating external feedback resistors.
**Application Versatility**
The combination of ultra-low noise and high PSRR makes the ADM7160 an ideal choice for a broad spectrum of applications:
* Powering **RF and Mixed-Signal Circuits** (PLLs, VCOs, ADCs, DACs)
* **Post-Regulation** for switching power supplies
* **Medical Imaging and Diagnostic** equipment
* **Professional Audio** and video systems
* **Precision Instrumentation** and data acquisition systems
**ICGOODFIND**
The **ADM7160AUJZ-8-R7** is a superior LDO regulator that sets a high benchmark for power quality. Its unparalleled combination of **ultra-low noise and exceptionally high PSRR** makes it an indispensable component for designers who cannot compromise on the integrity of their power supply. It transforms a noisy input into a clean, stable, and reliable 8V output, ensuring that sensitive circuits operate at their peak performance.
**Keywords:**
1. **Ultra-Low Noise**
2. **High PSRR**
3. **LDO Regulator**
4. **Voltage Regulation**
5. **Precision Analog**
