Overview
The REF192ESZ is a precision micropower, low dropout voltage (LDV) reference device manufactured by Analog Devices Inc. This component is part of the REF19x series and is designed to provide a stable output voltage from supplies as low as 100 mV above the output voltage. It is known for its high accuracy, low power consumption, and robust performance across a wide range of temperatures.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Initial Accuracy (E Grade) | VO | IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Initial Accuracy (F Grade) | VO | IOUT = 0 mA | 2.495 | 2.505 | V | |
| Initial Accuracy (G Grade) | VO | IOUT = 0 mA | 2.490 | 2.510 | V | |
| Line Regulation (E Grade) | ΔVO/ΔVIN | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 2 | 4 ppm/V | ||
| Line Regulation (F and G Grades) | ΔVO/ΔVIN | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 4 | 8 ppm/V | ||
| Load Regulation (E Grade) | ΔVO/ΔILOAD | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 4 | 10 ppm/mA | ||
| Load Regulation (F and G Grades) | ΔVO/ΔILOAD | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 6 | 15 ppm/mA | ||
| Dropout Voltage | VS - VO | VS = 3.5 V, ILOAD = 10 mA | 1.00 V | |||
| Supply Current (No Load) | IS | 45 μA | ||||
| Supply Current (Sleep Mode) | IS | 15 μA |
Key Features
- High Output Current: Up to 30 mA, making it suitable for a variety of applications requiring stable voltage references.
- Low Supply Current: Maximum of 45 μA in normal operation and 15 μA in sleep mode, ideal for power-sensitive designs.
- Low Dropout Voltage: Ensures stable output voltage even with low input voltages, starting from 100 mV above the output voltage.
- High Accuracy: Initial accuracy of ±2 mV maximum for the E grade, ensuring precise voltage reference.
- Low Temperature Coefficient: Maximum of 5 ppm/°C, providing stable performance across a wide temperature range.
- Long-Term Stability: Guaranteed by characterization, with a long-term stability of 1.2 mV over 1000 hours at 125°C.
- Low Noise Voltage: 25 μV p-p from 0.1 Hz to 10 Hz, contributing to a clean and stable output.
Applications
- Precision Analog Circuits: Ideal for use in precision amplifiers, filters, and other analog circuits requiring stable voltage references.
- Industrial Control Systems: Suitable for applications in industrial automation where stable voltage references are crucial.
- Medical Devices: Used in medical equipment where high accuracy and stability of voltage references are essential.
- Aerospace and Defense: Applicable in aerospace and defense systems that require high reliability and precision voltage references.
- Automotive Systems: Can be used in automotive electronics for stable voltage references in various control systems.
Q & A
- What is the REF192ESZ used for?
The REF192ESZ is used as a precision micropower, low dropout voltage reference in various electronic circuits requiring stable voltage references.
- What is the maximum output current of the REF192ESZ?
The maximum output current of the REF192ESZ is 30 mA.
- What is the typical supply current of the REF192ESZ in normal operation?
The typical supply current in normal operation is 45 μA.
- What is the supply current in sleep mode for the REF192ESZ?
The supply current in sleep mode is 15 μA.
- What is the initial accuracy of the REF192ESZ for the E grade?
The initial accuracy for the E grade is ±2 mV maximum.
- What is the temperature coefficient of the REF192ESZ?
The temperature coefficient is 5 ppm/°C maximum.
- What is the long-term stability of the REF192ESZ?
The long-term stability is 1.2 mV over 1000 hours at 125°C.
- What is the noise voltage of the REF192ESZ?
The noise voltage is 25 μV p-p from 0.1 Hz to 10 Hz.
- What are some common applications of the REF192ESZ?
Common applications include precision analog circuits, industrial control systems, medical devices, aerospace and defense systems, and automotive systems.
- What is the package type of the REF192ESZ?
The REF192ESZ is available in an 8-pin SOIC package.
