ADR4525BRZ is a low-noise shunt-mode voltage reference developed by ADI
Specifications
MFR:
ADI
Product Number:
ADR4525BRZ
Description:
Series Voltage Reference IC Fixed 2.5V V ±0.02% 10 MA 8-SOIC
Highlight:
low-noise shunt-mode voltage reference ADR4525BRZ
,ADI shunt-mode voltage reference
,ADR4525BRZ voltage reference with warranty
Introduction
ADR4525BRZ - Low-Noise Shunt-Mode Voltage Reference
The ADR4525BRZ is a high-precision, low-noise shunt-mode voltage reference developed by Analog Devices (ADI). This premium voltage reference delivers an ultra-stable fixed 2.5 V output with exceptional temperature resilience, minimal noise, and robust long-term stability, making it ideal for precision applications in data acquisition and industrial control systems.
Core Functions
The ADR4525BRZ addresses critical voltage reference challenges with these key features:
Ultra-Precise Fixed 2.5 V Output
- Nominal Output Voltage: Calibrated fixed output of 2.5 V
- Initial Accuracy: ±0.02% (max) at 25°C, eliminating need for post-production trimming
Ultra-Low Temperature Drift
- Temperature Stability: 1.5 ppm/°C (typical), 5 ppm/°C (max) over -40°C to +85°C
- Maintains stable output in fluctuating environments like industrial machinery
Low Output Noise
- Noise Performance: 3.5 µV p-p (0.1 Hz to 10 Hz) for sensitive applications
- Internal circuitry reduces thermal and flicker noise
Shunt-Mode Operation
- Current Range: 10 µA to 10 mA for flexible power scenarios
- Simplified design requiring only current-limiting resistor
Robustness & Integration
- Reverse voltage protection for assembly safety
- Minimal external components reduce BOM cost and PCB space
- 50 ppm/year long-term drift for consistent performance
Key Applications
The ADR4525BRZ excels in precision-critical systems:
High-Resolution Data Acquisition Systems
Powering 16-bit+ ADCs/DACs and sensor conditioning circuits where reference stability defines measurement accuracy.
Test & Measurement Equipment
Calibration reference for DMMs, oscilloscopes, and ATE to maintain instrument precision.
Industrial Automation
Biases industrial sensors and PLCs for reliable process control in harsh environments.
Medical Electronics
Enables precise measurements in patient monitors and diagnostic equipment where safety is critical.
Automotive Systems
Maintains stability in ADAS components and engine sensors across automotive temperature ranges.
Low-Power Devices
Operates efficiently down to 10 µA for battery-powered IoT sensors and wearables.
Key Specifications
| Parameter | Typical Value | Maximum Value |
|---|---|---|
| Nominal Output Voltage | 2.5 V | -- |
| Initial Accuracy (25°C) | ±0.01% | ±0.02% |
| Temperature Coefficient | 1.5 ppm/°C | 5 ppm/°C |
| Output Noise (0.1 Hz-10 Hz) | 3.5 µV p-p | -- |
| Operating Current Range | 10 µA - 10 mA | -- |
| Input Voltage Range | 4.5 V - 18 V | 18 V |
| Reverse Voltage Protection | Yes | -- |
| Long-Term Drift | 50 ppm/year | -- |
| Package Type | 8-lead SOIC | -- |
The ADR4525BRZ sets the standard for precision voltage references with its combination of stability, low noise, and robust performance across demanding applications.
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