Overview
The REF192FSZ-REEL7 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. This design ensures a very low temperature coefficient and high initial accuracy. The device operates with a stable output voltage from supplies as low as 100 mV above the output voltage and consumes less than 45 μA of supply current. It also features a sleep mode that reduces the supply current to less than 15 μA when the SLEEP pin is activated.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | E Grade, IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Output Voltage (VO) | F Grade, IOUT = 0 mA | 2.495 | 2.505 | V | |
| Output Voltage (VO) | G Grade, IOUT = 0 mA | 2.490 | 2.510 | V | |
| Line Regulation (ΔVO/ΔVIN) | E Grade, 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 2 | 4 | ppm/V | |
| Load Regulation (ΔVO/ΔVLOAD) | 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 | ||
| Supply Current | No load | 45 | μA | ||
| Supply Current in Sleep Mode | No load | 15 | μA | ||
| Operating Temperature Range | -40°C | 85°C | |||
| Package Type | 8-Lead SOIC_N |
Key Features
- Precision Output Voltage: High initial accuracy with output voltage options, ensuring stable operation across various conditions.
- Low Dropout Voltage: Operates with supplies as low as 100 mV above the output voltage.
- Micropower Consumption: Low supply current of less than 45 μA and reduced to less than 15 μA in sleep mode.
- Temperature Stability: Very low temperature coefficient achieved through patented temperature drift curvature correction circuit and laser trimming of thin-film resistors.
- Short-Circuit Protection: Built-in protection against short-circuit conditions.
- Extended Temperature Range: Specified over -40°C to +85°C with typical performance up to +125°C.
Applications
- Portable Instruments: Ideal for battery-powered devices due to 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: Meets the requirements for automotive applications with its extended temperature range.
Q & A
- What is the typical output voltage of the REF192FSZ-REEL7?
The typical output voltage is 2.500 V.
- What is the maximum supply current of the REF192FSZ-REEL7?
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 operating temperature range of the REF192FSZ-REEL7?
The operating temperature range is -40°C to +85°C.
- What type of package is the REF192FSZ-REEL7 available in?
The REF192FSZ-REEL7 is available in an 8-Lead SOIC_N package.
- What is the dropout voltage for the REF192FSZ-REEL7?
The dropout voltage is 1.00 V at VS = 3.5 V and ILOAD = 10 mA.
- Does the REF192FSZ-REEL7 have short-circuit protection?
Yes, it has built-in short-circuit protection.
- What are some common applications for the REF192FSZ-REEL7?
Common applications include portable instruments, ADCs and DACs, smart sensors, solar powered applications, and loop-current-powered instruments.
- What is the line regulation of the REF192FSZ-REEL7?
The line regulation is 2 to 4 ppm/V for the E Grade.
- Is a capacitor required for proper operation of the REF192FSZ-REEL7?
Yes, a 1 μF capacitor is required between the output pin and the GND pin for proper operation.
