Overview
The REF194ES-REEL is a precision voltage reference IC manufactured by Analog Devices Inc. This component is part of the REF19x series, known for its high accuracy and stability. The REF194ES-REEL provides a fixed output voltage of 4.5V with a tight tolerance of ±0.04%. It is designed for applications requiring low power consumption and high precision voltage referencing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (Fixed) | 4.5V | V |
| Output Voltage Tolerance | ±0.04% | % |
| Output Current | 30 mA | mA |
| Temperature Coefficient | 5 ppm/°C | ppm/°C |
| Noise (0.1Hz to 10Hz) | 45 µVp-p | µVp-p |
| Supply Current | 45 µA | µA |
| Operating Temperature | -40°C to +85°C | °C |
| Package Type | 8-SOIC (0.154", 3.90mm Width) | |
| Mounting Type | Surface Mount |
Key Features
- High initial accuracy: ±2 mV max at 25°C.
- Low temperature coefficient: 5 ppm/°C max.
- Low supply current: 45 µA max, and 15 µA in sleep mode.
- Low dropout voltage: Stable output from supplies as low as 100 mV above the output voltage.
- High output current: Up to 30 mA.
- Short-circuit protection.
- Extended industrial temperature range: -40°C to +85°C.
Applications
- Portable instruments
- A/D and D/A converters
- Smart sensors
- Solar-powered applications
- Loop-current-powered instruments
- Automotive applications requiring high precision and low power consumption.
Q & A
- What is the output voltage of the REF194ES-REEL?
The output voltage is 4.5V with a tolerance of ±0.04%.
- What is the maximum output current of the REF194ES-REEL?
The maximum output current is 30 mA).
- What is the temperature coefficient of the REF194ES-REEL?
The temperature coefficient is 5 ppm/°C max).
- What is the supply current of the REF194ES-REEL?
The supply current is 45 µA max, and 15 µA in sleep mode).
- What is the operating temperature range of the REF194ES-REEL?
The operating temperature range is -40°C to +85°C).
- What package type does the REF194ES-REEL come in?
The REF194ES-REEL comes in an 8-SOIC (0.154", 3.90mm Width) package).
- Does the REF194ES-REEL have short-circuit protection?
Yes, the REF194ES-REEL has short-circuit protection).
- What are some typical applications of the REF194ES-REEL?
Typical applications include portable instruments, A/D and D/A converters, smart sensors, solar-powered applications, and loop-current-powered instruments).
- How does the sleep mode affect the supply current of the REF194ES-REEL?
In sleep mode, the supply current is reduced to less than 15 µA).
- What is the dropout voltage of the REF194ES-REEL?
The REF194ES-REEL can operate with a dropout voltage as low as 100 mV above the output voltage).
