Overview
The REF03GSZ-REEL7 is a precision voltage reference from Analog Devices Inc., part of the REF01/REF02/REF03 series. This device provides a stable 2.5 V output voltage with high accuracy and minimal change in response to variations in supply voltage, ambient temperature, or load conditions. It is available in an 8-lead SOIC package, making it suitable for both standard and high-stress applications.
The REF03 series is designed for general-purpose and space-constrained applications, offering a small footprint and a wide supply range. For newer designs, the ADR01/ADR02/ADR03 series is recommended, which offers higher accuracy and temperature stability while maintaining pin-for-pin compatibility.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VO | VIN = 15 V, −40°C ≤ TA ≤ +85°C, ILOAD = 0 mA | 2.495 | 2.500 | 2.515 | V |
| Output Adjustment Range | ΔVTRIM | POT = 10 kΩ | ±6 | ±11 | % | |
| Initial Accuracy | VOERR | ±15 mV | ±0.6 % | |||
| Temperature Coefficient | TCVO | 10 | 50 ppm/°C | |||
| Supply Voltage Range | VIN | 4.5 V | 36 V | |||
| Operating Temperature Range | TA | −40°C | +85°C | |||
| Maximum Supply Current | ISUPPLY | 1.4 mA | ||||
| Maximum Load Current | ILOAD | 10 mA |
Key Features
- High Output Accuracy: The REF03 provides an output voltage of 2.5 V with an initial accuracy of ±0.6% and a temperature coefficient of 10 to 50 ppm/°C.
- Adjustable Output: The output voltage can be fine-adjusted using the TRIM terminal, allowing for ±3% minimum adjustment range.
- Temperature Sensing: The device includes a TEMP terminal that can be used for temperature sensing and approximation with an external buffer and resistor network.
- Wide Supply Range: Operates with a supply voltage range of 4.5 V to 36 V, making it versatile for various applications.
- Low Supply Current: Maximum supply current of 1.4 mA, which is beneficial for power-sensitive designs.
- High Load-Driving Capability: Can drive loads up to 10 mA, ensuring robust performance in demanding applications).
Applications
The REF03GSZ-REEL7 is suitable for a variety of applications due to its high accuracy, stability, and versatility. Some common applications include:
- General-Purpose Voltage References: Ideal for any system requiring a stable voltage reference).
- Space-Constrained Applications: The small footprint of the SOIC package makes it suitable for designs where space is limited).
- High-Stress Applications: Can be used in environments with wide temperature ranges and varying load conditions).
- Temperature Monitoring Systems: The temperature sensing capability makes it useful in systems that require temperature monitoring).
Q & A
- What is the output voltage of the REF03GSZ-REEL7?
The output voltage of the REF03GSZ-REEL7 is 2.5 V with an initial accuracy of ±0.6%).
- What is the supply voltage range for the REF03GSZ-REEL7?
The supply voltage range is from 4.5 V to 36 V).
- Can the output voltage of the REF03GSZ-REEL7 be adjusted?
- What is the maximum load current that the REF03GSZ-REEL7 can drive?
The maximum load current is 10 mA).
- What is the operating temperature range for the REF03GSZ-REEL7?
The operating temperature range is from −40°C to +85°C).
- Does the REF03GSZ-REEL7 have a temperature sensing feature?
- What package type is the REF03GSZ-REEL7 available in?
- What is the maximum supply current of the REF03GSZ-REEL7?
- Are there any recommended alternatives for newer designs?
- What is the long-term stability of the REF03GSZ-REEL7?
