Overview
The REF192FSZ is a precision micropower, low dropout voltage (LDV) reference from Analog Devices Inc., part of the REF19x series. This device is designed to provide a stable output voltage with high initial accuracy and a very low temperature coefficient. It utilizes a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve these performance characteristics. The REF192FSZ is suitable for applications requiring low power consumption and stable voltage references across a wide range of temperatures.
Key Specifications
| Parameter | Symbol | Condition | Min | Max | Unit | |
|---|---|---|---|---|---|---|
| Output Voltage | VO | IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Temperature Coefficient | TCVO | IOUT = 0 mA | 5 ppm/°C | |||
| Supply Current | IS | No load | 45 μA | μA | ||
| Sleep Mode Supply Current | IS | No load | 15 μA | μA | ||
| Line Regulation | ΔVO/ΔVIN | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 4 ppm/V | |||
| Load Regulation | ΔVO/ΔILOAD | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 10 ppm/mA | |||
| Dropout Voltage | VS - VO | VS = 3.5 V, ILOAD = 10 mA | 1.00 V | |||
| Output Current | IOUT | 30 mA | ||||
| Operating Temperature | TA | -40°C | +85°C | °C | ||
| Package | 8-Lead SOIC_N |
Key Features
- High Initial Accuracy: ±2 mV maximum, ensuring precise voltage output.
- Low Temperature Coefficient: 5 ppm/°C maximum, providing stable output across a wide temperature range.
- Low Supply Current: 45 μA maximum, and 15 μA in sleep mode, making it suitable for low-power applications.
- Low Dropout Voltage: Operates with supplies as low as 100 mV above the output voltage.
- High Output Current: Up to 30 mA, supporting a variety of load conditions.
- Sleep Mode: Reduces supply current to less than 15 μA when enabled.
- Short-Circuit Protection: Ensures device safety in case of short circuits.
- Ultra-Low Noise: 25 μV p-p noise voltage from 0.1 Hz to 10 Hz.
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 accuracy 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: Specified over the extended industrial temperature range, making it suitable for automotive use.
Q & A
- What is the output voltage of the REF192FSZ?
The output voltage of the REF192FSZ is 2.5V.
- What is the temperature coefficient of the REF192FSZ?
The temperature coefficient is 5 ppm/°C maximum.
- How much supply current does the REF192FSZ consume?
The REF192FSZ consumes less than 45 μA of supply current and less than 15 μA in sleep mode.
- What is the maximum output current of the REF192FSZ?
The maximum output current is 30 mA.
- What is the operating temperature range of the REF192FSZ?
The operating temperature range is -40°C to +85°C.
- What package types are available for the REF192FSZ?
The REF192FSZ is available in an 8-lead SOIC_N package.
- Does the REF192FSZ have short-circuit protection?
Yes, the REF192FSZ has short-circuit protection.
- What is the noise voltage of the REF192FSZ from 0.1 Hz to 10 Hz?
The noise voltage is 25 μV p-p from 0.1 Hz to 10 Hz.
- Can the REF192FSZ be used in automotive applications?
Yes, it is specified over the extended industrial temperature range, making it suitable for automotive applications.
- Is a capacitor required for proper operation of the REF192FSZ?
Yes, a 1 μF capacitor is required between the output pin and the GND pin for proper operation.
