Overview
The REF195FSZ 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 5V with minimal power consumption, making it suitable for a variety of applications requiring precise voltage referencing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (Nominal) | 5.0 | V |
| Output Voltage Tolerance | ±0.1% | - |
| Temperature Coefficient | 10 ppm/°C (max) | - |
| Output Current | 30 mA | - |
| Supply Current | 45 μA (max) | - |
| Supply Voltage Range | 5.1 V to 15 V | - |
| Operating Temperature Range | -40°C to +85°C | - |
| Package Type | 8-Lead SOIC | - |
| Sleep Mode Current | 15 μA (max) | - |
| Load Regulation | 4 ppm/mA | - |
| Line Regulation | 4 ppm/V | - |
| Dropout Voltage | 100 mV above output voltage | - |
Key Features
- Precision Voltage Reference: The REF195FSZ offers high initial accuracy with a tolerance of ±0.1% and a low temperature coefficient of 10 ppm/°C (max).
- Micropower and Low Dropout Voltage: It consumes less than 45 μA of supply current and can operate with supplies as low as 100 mV above the output voltage.
- High Output Current: Capable of delivering up to 30 mA of output current.
- Sleep Mode: Reduces supply current to less than 15 μA when enabled by a low TTL or CMOS level on the SLEEP pin.
- 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 requiring stable voltage references.
- ADCs and DACs: Suitable for analog-to-digital and digital-to-analog converters where precise voltage referencing is crucial.
- Smart Sensors: Used in various sensor applications requiring stable and accurate voltage references.
- Solar Powered Applications: Efficient power consumption makes it suitable for solar-powered systems.
- Loop-Current-Powered Instruments: Applicable in instruments powered by loop currents.
- Automotive Applications: Specified for use in automotive environments due to its extended temperature range and robust specifications.
Q & A
- What is the nominal output voltage of the REF195FSZ?
The nominal output voltage of the REF195FSZ is 5.0V.
- What is the temperature coefficient of the REF195FSZ?
The temperature coefficient of the REF195FSZ is 10 ppm/°C (max).
- How much current does the REF195FSZ consume in normal operation?
The REF195FSZ consumes less than 45 μA of supply current in normal operation.
- What is the output current capability of the REF195FSZ?
The REF195FSZ can deliver up to 30 mA of output current.
- How does the sleep mode affect the supply current of the REF195FSZ?
In sleep mode, the supply current is reduced to less than 15 μA.
- What is the operating temperature range of the REF195FSZ?
The operating temperature range of the REF195FSZ is -40°C to +85°C, with typical performance up to +125°C.
- What type of package is the REF195FSZ available in?
The REF195FSZ is available in an 8-Lead SOIC package.
- Does the REF195FSZ have built-in short-circuit protection?
Yes, the REF195FSZ has built-in short-circuit protection.
- What are some typical applications of the REF195FSZ?
Typical applications include portable instruments, ADCs and DACs, smart sensors, solar powered applications, and automotive systems.
- How does the REF195FSZ achieve its high accuracy?
The REF195FSZ achieves its high accuracy through a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors.
