Overview
The REF192GRUZ is a precision micropower, low dropout voltage reference from Analog Devices Inc. It is part of the REF19x series, which 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 device is designed to provide a stable output voltage of 2.5V with minimal power consumption, making it suitable for a variety of applications requiring precise voltage referencing.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Initial Accuracy | IOUT = 0 mA | - | - | ±2 mV | - |
| Temperature Coefficient | - | - | - | 5 ppm/°C | - |
| Output Current | - | - | - | 30 mA | - |
| Supply Current | No load | - | - | 45 μA | - |
| Supply Current in Sleep Mode | No load | - | - | 15 μA | - |
| Line Regulation | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 2 | - | 4 ppm/V | - |
| Load Regulation | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 4 | - | 10 ppm/mA | - |
| Dropout Voltage | VS = 3.5 V, ILOAD = 10 mA | - | - | 1.00 V | - |
| Noise Voltage (0.1 Hz to 10 Hz) | - | - | - | 25 μV p-p | - |
| Operating Temperature Range | - | -40°C | - | +85°C | - |
| Package Type | - | - | - | 8-TSSOP | - |
Key Features
- Precision band gap voltage reference with a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors.
- Low dropout voltage, allowing stable output from supplies as low as 100 mV above the output voltage.
- High output current capability of up to 30 mA.
- Low supply current of 45 μA maximum and 15 μA in sleep mode.
- High initial accuracy with a maximum deviation of ±2 mV.
- Low temperature coefficient of 5 ppm/°C maximum.
- Short-circuit protection and low noise voltage of 25 μV p-p (0.1 Hz to 10 Hz).
- Extended industrial temperature range operation from −40°C to +85°C.
Applications
- Portable instruments and battery-powered devices.
- Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs).
- Smart sensors and IoT devices.
- Solar-powered applications and renewable energy systems.
- Loop-current-powered instruments and industrial control systems.
- Automotive and industrial automation applications requiring high precision and reliability.
Q & A
- What is the output voltage of the REF192GRUZ?
The output voltage of the REF192GRUZ is 2.5V.
- What is the maximum supply current of the REF192GRUZ?
The maximum supply current is 45 μA.
- How does the sleep mode affect the supply current?
In sleep mode, the supply current is reduced to less than 15 μA.
- What is the temperature coefficient of the REF192GRUZ?
The temperature coefficient is 5 ppm/°C maximum.
- What is the maximum output current of the REF192GRUZ?
The maximum output current is 30 mA.
- What is the operating temperature range of the REF192GRUZ?
The operating temperature range is from −40°C to +85°C.
- What type of package does the REF192GRUZ come in?
The REF192GRUZ comes in an 8-TSSOP package.
- What is the line regulation of the REF192GRUZ?
The line regulation is 4 ppm/V for the E grade.
- What is the load regulation of the REF192GRUZ?
The load regulation is 4 ppm/mA for the E grade.
- Does the REF192GRUZ require any external components for proper operation?
Yes, a 1 μF capacitor is required between the output pin and the GND pin of the device.
