Overview
The ADR525BRTZ-REEL7 is a high-precision shunt voltage reference produced by Analog Devices Inc. This component is part of the ADR525 series, designed for space-critical applications and housed in an ultrasmall 3-Lead SOT-23-3 package. It is ideal for systems requiring low noise, high accuracy, and stability over a wide temperature range.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | Grade B | 2.495 | 2.500 | 2.505 | V |
| Initial Accuracy | VOERR | Grade B | −5 | − | 5 | mV |
| Temperature Coefficient | TCVO | −40°C < TA < +85°C, Grade B | 15 | 40 | ppm/°C | |
| Output Voltage Change vs. IIN | ∆VR | IIN = 0.1 mA to 15 mA, −40°C < TA < +85°C | 1 | − | 4 | mV |
| Dynamic Output Impedance | ∆VR/∆IR | IIN = 0.1 mA to 15 mA | 0.2 | − | − | Ω |
| Minimum Operating Current | IIN | −40°C < TA < +85°C | 50 | − | − | μA |
| Voltage Noise | eN p-p | 0.1 Hz to 10 Hz | 18 | − | − | μV p-p |
| Turn-On Settling Time | tR | − | − | 2 | μs |
Key Features
- High Precision: Initial accuracy of ±0.2% and a temperature coefficient of 40 ppm/°C.
- Low Noise: Ultralow output noise of 18 μV p-p from 0.1 Hz to 10 Hz.
- Stable Operation: No external capacitor required for stability, but can be used for filtering the supply if needed.
- Adjustable Output: A trim terminal allows adjustment of the output voltage over a ±0.5% range.
- Low Operating Current: Minimum operating current of 50 μA and a maximum of 15 mA.
- Compact Package: Housed in an ultrasmall 3-Lead SOT-23-3 package, ideal for space-critical applications.
Applications
- Portable, Battery-Powered Equipment: Ideal for handheld and battery-powered devices due to its low operating current.
- Automotive: Suitable for automotive applications requiring high precision and stability over a wide temperature range.
- Power Supplies: Used in power supply designs where precise voltage referencing is critical.
- Data Acquisition Systems: Employed in data acquisition systems for accurate voltage referencing.
- Instrumentation and Process Control: Utilized in instrumentation and process control systems for precise voltage reference.
- Energy Measurement: Used in energy measurement applications requiring high accuracy and stability.
Q & A
- What is the output voltage of the ADR525BRTZ-REEL7?
The output voltage of the ADR525BRTZ-REEL7 is 2.5 V with an initial accuracy of ±0.2%.
- What is the temperature coefficient of the ADR525BRTZ-REEL7?
The temperature coefficient of the ADR525BRTZ-REEL7 is 40 ppm/°C.
- Does the ADR525BRTZ-REEL7 require an external capacitor for stability?
No, the ADR525BRTZ-REEL7 does not require an external capacitor for stability, but one can be used for filtering the supply if needed.
- What is the minimum operating current of the ADR525BRTZ-REEL7?
The minimum operating current of the ADR525BRTZ-REEL7 is 50 μA.
- What is the maximum operating current of the ADR525BRTZ-REEL7?
The maximum operating current of the ADR525BRTZ-REEL7 is 15 mA.
- What is the voltage noise of the ADR525BRTZ-REEL7?
The voltage noise of the ADR525BRTZ-REEL7 is 18 μV p-p from 0.1 Hz to 10 Hz.
- Can the output voltage of the ADR525BRTZ-REEL7 be adjusted?
Yes, the output voltage of the ADR525BRTZ-REEL7 can be adjusted over a ±0.5% range using the trim terminal.
- What is the turn-on settling time of the ADR525BRTZ-REEL7?
The turn-on settling time of the ADR525BRTZ-REEL7 is 2 μs.
- In what package is the ADR525BRTZ-REEL7 housed?
The ADR525BRTZ-REEL7 is housed in a 3-Lead SOT-23-3 package.
- What are some common applications of the ADR525BRTZ-REEL7?
The ADR525BRTZ-REEL7 is commonly used in portable, battery-powered equipment, automotive, power supplies, data acquisition systems, instrumentation and process control, and energy measurement applications.
