Overview
The ADM7150ARDZ-1.8, produced by Analog Devices Inc., is a high-performance, ultralow noise, high power supply rejection ratio (PSRR) linear regulator. This device is part of the ADM7150 series and is specifically configured to provide a fixed output voltage of 1.8 V. The ADM7150 is designed to operate from an input voltage range of 4.5 V to 16 V and can deliver up to 800 mA of output current. It features an advanced proprietary architecture that ensures high PSRR, low output noise, and excellent line and load transient response.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 4.5 | 16 | V | |
| Maximum Output Current | IOUT | 800 | mA | ||
| Output Voltage | VOUT | 1.8 | V | ||
| Output Noise (10 Hz to 100 kHz) | OUTNOISE | 1.6 | µV rms | ||
| Output Noise (100 Hz to 100 kHz) | OUTNOISE | 1.0 | µV rms | ||
| Noise Spectral Density (10 kHz to 1 MHz) | NSD | 1.7 | nV/√Hz | ||
| Power Supply Rejection Ratio (PSRR) at 400 mA load | PSRR | >90 dB (1 kHz to 100 kHz) | dB | ||
| Dropout Voltage | VDO | 0.6 | V | ||
| Initial Voltage Accuracy | ±1% | % | |||
| Voltage Accuracy over Line, Load and Temperature | ±2% | % | |||
| Quiescent Current (IGND) | IGND | 4.3 | 7.0 | mA | |
| Shutdown Current | IIN-SD | 0.1 | 3 | µA |
Key Features
- Ultralow noise: 1.0 µV rms total integrated noise from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz.
- High PSRR: >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- Low dropout voltage: 0.6 V at VOUT = 5 V, 800 mA load.
- High accuracy: Initial voltage accuracy of ±1% and voltage accuracy over line, load, and temperature of ±2%.
- Low quiescent current: 4.3 mA at no load.
- Low shutdown current: 0.1 µA.
- Compact packaging: Available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- Stable with a 10 µF ceramic output capacitor.
Applications
- Regulated power for noise-sensitive applications.
- RF mixers, phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs.
- Communications and infrastructure, including cable digital-to-analog converter (DAC) drivers.
- Backhaul and microwave links.
Q & A
- What is the input voltage range of the ADM7150ARDZ-1.8?
The input voltage range is from 4.5 V to 16 V.
- What is the maximum output current of the ADM7150ARDZ-1.8?
The maximum output current is 800 mA.
- What is the output voltage of the ADM7150ARDZ-1.8?
The output voltage is fixed at 1.8 V.
- What is the noise spectral density of the ADM7150ARDZ-1.8?
The noise spectral density is 1.7 nV/√Hz from 10 kHz to 1 MHz.
- What is the PSRR of the ADM7150ARDZ-1.8 at 400 mA load?
The PSRR is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- What is the dropout voltage of the ADM7150ARDZ-1.8?
The dropout voltage is 0.6 V at VOUT = 5 V, 800 mA load.
- What is the initial voltage accuracy of the ADM7150ARDZ-1.8?
The initial voltage accuracy is ±1%.
- What is the quiescent current of the ADM7150ARDZ-1.8 at no load?
The quiescent current is 4.3 mA at no load.
- What is the shutdown current of the ADM7150ARDZ-1.8?
The shutdown current is 0.1 µA.
- In what packages is the ADM7150ARDZ-1.8 available?
The device is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
