Overview
The REF192FS-REEL7, produced by Analog Devices Inc., is a precision micropower, low dropout voltage reference IC from the REF19x series. This device is designed to provide a highly stable output voltage with minimal power consumption. It features a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors, ensuring a very low temperature coefficient and high initial accuracy. The REF192FS-REEL7 operates over an extended industrial temperature range of −40°C to +85°C and is suitable for various applications requiring precise voltage referencing.
Key Specifications
| Parameter | Symbol | Condition | Min | |||
|---|---|---|---|---|---|---|
| Initial Accuracy | VO | IOUT = 0 mA | 2.498 | 2.500 | 2.502 | V |
| Temperature Coefficient | TCVO/°C | IOUT = 0 mA | 2 | 5 | 10 | ppm/°C |
| Supply Current | ISUPPLY | No load | - | 45 | - | μA |
| Sleep Mode Supply Current | ISUPPLY | No load | - | 15 | - | μA |
| Line Regulation | ΔVO/ΔVIN | 3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA | 2 | 4 | 8 | ppm/V |
| Load Regulation | ΔVO/ΔVLOAD | VS = 5.0 V, 0 mA ≤ IOUT ≤ 30 mA | 4 | 10 | 15 | 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 | - | 85 | °C |
| Package | - | - | - | - | 8-Lead SOIC_N | - |
Key Features
- Precision Voltage Reference: High initial accuracy of ±2 mV maximum and a low temperature coefficient of 5 ppm/°C maximum.
- Low Power Consumption: Supply current of 45 μA maximum and sleep mode current of 15 μA maximum.
- Low Dropout Voltage: Stable output voltage from supplies as low as 100 mV above the output voltage.
- High Output Current: Capable of delivering up to 30 mA of output current.
- Extended Temperature Range: Specified over −40°C to +85°C with typical performance up to +125°C.
- Sleep Mode: Output can be turned off by applying a low TTL or CMOS level to the SLEEP pin, reducing supply current.
- Short-Circuit Protection: Built-in protection against short-circuit conditions.
Applications
- Portable Instruments: Ideal for battery-powered devices requiring stable voltage references.
- ADCs and DACs: Used in analog-to-digital and digital-to-analog converters for precise voltage referencing.
- Smart Sensors: Suitable for sensor applications requiring stable and accurate voltage references.
- Solar Powered Applications: Low power consumption makes it suitable for solar-powered systems.
- Loop-Current-Powered Instruments: Used in instruments powered by loop currents, such as in industrial automation.
- Automotive Applications: Can operate over the extended industrial temperature range, making it suitable for automotive use.
Q & A
- What is the initial accuracy of the REF192FS-REEL7?
The initial accuracy of the REF192FS-REEL7 is ±2 mV maximum.
- What is the temperature coefficient of the REF192FS-REEL7?
The temperature coefficient is 5 ppm/°C maximum.
- How much supply current does the REF192FS-REEL7 consume?
The supply current is 45 μA maximum, and in sleep mode, it is reduced to 15 μA maximum.
- What is the output current capability of the REF192FS-REEL7?
The REF192FS-REEL7 can deliver up to 30 mA of output current.
- What is the operating temperature range of the REF192FS-REEL7?
The operating temperature range is −40°C to +85°C, with typical performance up to +125°C.
- Does the REF192FS-REEL7 have a sleep mode?
Yes, the output can be turned off by applying a low TTL or CMOS level to the SLEEP pin, reducing supply current to 15 μA maximum.
- What package type is the REF192FS-REEL7 available in?
The REF192FS-REEL7 is available in an 8-Lead SOIC_N package.
- Is the REF192FS-REEL7 RoHS compliant?
Yes, the REF192FS-REEL7 is lead-free and RoHS compliant.
- What are some typical applications of the REF192FS-REEL7?
Typical applications include portable instruments, ADCs and DACs, smart sensors, solar-powered applications, and loop-current-powered instruments.
- Does the REF192FS-REEL7 require any external components for proper operation?
Yes, a 1 μF capacitor is required between the output pin and the GND pin for proper operation.
