Overview
The REF198GRU from Analog Devices Inc. is a precision voltage reference IC that belongs to the REF19x series. This device is designed to provide a highly accurate and stable output voltage of 4.096V. It 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. The REF198GRU is a micropower, low dropout voltage (LDV) device, making it suitable for applications where low power consumption and stable voltage reference are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 4.096 | V |
| Output Voltage Tolerance | % | |
| Temperature Coefficient | ppm/°C | |
| Supply Voltage Range | 100 mV above output voltage | V |
| Supply Current | μA | |
| Supply Current in Sleep Mode | μA | |
| Operating Temperature Range | °C | |
| Package Type |
Key Features
- Precision output voltage of 4.096V with high initial accuracy and low temperature coefficient.
- Micropower operation with supply current less than 45 μA and less than 15 μA in sleep mode.
- Low dropout voltage (LDV) capability, allowing stable output from supplies as low as 100 mV above the output voltage.
- Patented temperature drift curvature correction circuit for enhanced stability.
- Laser trimming of highly stable, thin-film resistors for improved performance.
- Surface mount package (8-Lead TSSOP) for easy integration into various designs.
Applications
The REF198GRU is suitable for a variety of applications that require a precise and stable voltage reference. These include:
- Automotive systems where reliability and stability over a wide temperature range are crucial.
- Industrial control systems that need accurate voltage references for measurement and control.
- Medical devices requiring stable voltage references for precise measurements and operations.
- Telecommunication equipment where stable voltage references are essential for reliable operation.
Q & A
- What is the output voltage of the REF198GRU?
The output voltage of the REF198GRU is 4.096V.
- What is the typical temperature coefficient of the REF198GRU?
The typical temperature coefficient is 2 ppm/°C.
- How much supply current does the REF198GRU consume?
The REF198GRU consumes less than 45 μA of supply current and less than 15 μA in sleep mode.
- What is the operating temperature range of the REF198GRU?
The operating temperature range is −40°C to +85°C.
- In what package is the REF198GRU available?
The REF198GRU is available in an 8-Lead TSSOP package.
- What is the purpose of the sleep mode in the REF198GRU?
The sleep mode reduces the supply current to less than 15 μA by turning off the output when a low TTL or CMOS level is applied to the SLEEP pin.
- What are some common applications for the REF198GRU?
Common applications include automotive systems, industrial control systems, medical devices, and telecommunication equipment.
- How does the REF198GRU achieve its high accuracy and stability?
The REF198GRU uses a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors.
- Is the REF198GRU RoHS compliant?
No, the REF198GRU is not RoHS compliant.
- Where can I find CAD models and footprints for the REF198GRU?
CAD models and footprints for the REF198GRU are available in various formats from sources like Ultra Librarian.
