Overview
The REF192GRU-REEL7 is a precision 2.5V voltage reference IC from Analog Devices Inc., part of the REF19x series. These devices are designed to provide high accuracy and stability, making them suitable for a wide range of applications. The REF19x series utilizes a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. This component is particularly useful in systems requiring low power consumption and high precision voltage referencing.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | E Grade, IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Supply Current (IS) | No load | 45 | μA | ||
| Supply Current in Sleep Mode (ISLEEP) | No load | 15 | μA | ||
| Line Regulation (ΔVO/ΔVIN) | E Grade, 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 2 | 4 | ppm/V | |
| Load Regulation (ΔVO/ΔILOAD) | E Grade, VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 4 | 10 | ppm/mA | |
| Dropout Voltage (VS - VO) | VS = 3.5 V, ILOAD = 10 mA | 1.00 | V | ||
| Temperature Coefficient (TCVO) | E Grade, IOUT = 0 mA | 2 | ppm/°C | ||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Precision Voltage Reference: The REF192GRU-REEL7 provides a precise 2.5V output voltage with high initial accuracy and low temperature coefficient.
- Low Power Consumption: The device consumes less than 45 μA of supply current and reduces to less than 15 μA in sleep mode.
- Low Dropout Voltage: Operates with a dropout voltage as low as 1.00 V at ILOAD = 10 mA.
- High Stability: Features line and load regulation specifications that include the effect of self-heating, ensuring stable output voltage across various operating conditions.
- Wide Operating Temperature Range: Specified over the extended industrial temperature range of -40°C to +85°C, with typical performance up to +125°C.
- Package Options: Available in 8-lead SOIC, PDIP, and TSSOP packages.
Applications
- Portable Instruments: Ideal for battery-powered devices due to its low power consumption.
- ADCs and DACs: Provides a stable reference voltage for analog-to-digital and digital-to-analog converters.
- Smart Sensors: Suitable for sensor applications requiring high precision and low power.
- Solar Powered Applications: Efficient operation makes it suitable for solar-powered systems.
- Loop-Current-Powered Instruments: Can be used in instruments powered by loop currents.
- Automotive Applications: Meets the requirements for automotive applications with its extended temperature range.
Q & A
- What is the output voltage of the REF192GRU-REEL7?
The output voltage is 2.5V with an initial accuracy of ±2 mV maximum for the E grade.
- What is the maximum supply current of the REF192GRU-REEL7?
The maximum supply current is 45 μA.
- How much current does the REF192GRU-REEL7 consume in sleep mode?
In sleep mode, the supply current is reduced to less than 15 μA.
- What is the dropout voltage of the REF192GRU-REEL7?
The dropout voltage is 1.00 V at ILOAD = 10 mA.
- What is the operating temperature range of the REF192GRU-REEL7?
The operating temperature range is -40°C to +85°C, with typical performance up to +125°C.
- What are the package options available for the REF192GRU-REEL7?
It is available in 8-lead SOIC, PDIP, and TSSOP packages.
- What is the line regulation of the REF192GRU-REEL7?
The line regulation is 2 to 4 ppm/V for the E grade.
- What is the load regulation of the REF192GRU-REEL7?
The load regulation is 4 to 10 ppm/mA for the E grade.
- Is the REF192GRU-REEL7 suitable for automotive applications?
- What is the purpose of the sleep pin on the REF192GRU-REEL7?
The sleep pin allows the device to enter a low power mode by applying a low TTL or CMOS level, reducing the supply current to less than 15 μA.
