Overview
The REF192ESZ-REEL, produced by Analog Devices Inc., is a precision micropower, low dropout voltage (LDV) reference from the REF19x series. This device is designed to provide a stable output voltage of 2.5V with high accuracy and low temperature drift. It operates from supplies as low as 100 mV above the output voltage and consumes less than 45 μA of supply current, making it suitable for power-sensitive applications. The REF192 also features a sleep mode that reduces the supply current to less than 15 μA when the SLEEP pin is activated.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VO | IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Initial Accuracy | - | IOUT = 0 mA (E Grade) | - | - | ±2 mV | - |
| Temperature Coefficient | TCVO/°C | IOUT = 0 mA (G Grade) | 10 | 25 | - | ppm/°C |
| Line Regulation | ΔVO/ΔVIN | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA (E Grade) | - | - | 4 ppm/V | - |
| Load Regulation | ΔVO/ΔILOAD | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA (E Grade) | - | - | 4 ppm/mA | - |
| Dropout Voltage | VS - VO | VS = 3.5 V, ILOAD = 10 mA | - | - | 1.00 V | - |
| Supply Current | - | - | - | 45 μA | - | - |
| Sleep Mode Current | - | SLEEP pin activated | - | - | 15 μA | - |
| Operating Temperature Range | - | - | -40°C | - | +85°C | - |
| Package | - | - | - | - | 8-Lead SOIC | - |
Key Features
- High Initial Accuracy: ±2 mV maximum for the E grade, ensuring precise output voltage.
- Low Temperature Coefficient: 5 ppm/°C maximum, providing stable output across a wide temperature range.
- Low Dropout Voltage: Operates with supplies as low as 100 mV above the output voltage.
- Low Supply Current: Less than 45 μA, with a sleep mode current of less than 15 μA.
- High Output Current: Up to 30 mA, making it suitable for various applications.
- Extended Industrial Temperature Range: Specified over −40°C to +85°C, with performance up to +125°C.
Applications
The REF192ESZ-REEL is suitable for a variety of applications where high precision and low power consumption are critical. These include:
- Automotive Systems: Due to its extended temperature range and high reliability, it is ideal for automotive electronics.
- Industrial Control Systems: Provides stable reference voltages in industrial control and measurement systems.
- Medical Devices: Used in medical equipment where precise voltage references are essential.
- Consumer Electronics: Suitable for battery-powered devices and other consumer electronics requiring low power consumption).
Q & A
- What is the output voltage of the REF192ESZ-REEL?
The output voltage of the REF192ESZ-REEL is 2.5V).
- What is the minimum supply voltage required for the REF192ESZ-REEL?
The device operates from supplies as low as 100 mV above the output voltage, which is 2.6V for this model).
- What is the maximum output current of the REF192ESZ-REEL?
The maximum output current is 30 mA).
- How does the sleep mode function in the REF192ESZ-REEL?
The sleep mode reduces the supply current to less than 15 μA when the SLEEP pin is activated).
- What is the operating temperature range of the REF192ESZ-REEL?
The device operates over an extended industrial temperature range of −40°C to +85°C).
- What package options are available for the REF192ESZ-REEL?
The REF192ESZ-REEL is available in an 8-Lead SOIC package).
- What is the typical supply current of the REF192ESZ-REEL?
The typical supply current is less than 45 μA).
- How accurate is the output voltage of the REF192ESZ-REEL?
The initial accuracy is ±2 mV maximum for the E grade).
- What is the temperature coefficient of the REF192ESZ-REEL?
The temperature coefficient is 5 ppm/°C maximum).
- Is the REF192ESZ-REEL suitable for automotive applications?
Yes, it is specified over the extended industrial temperature range and is suitable for automotive electronics).
