Overview
The REF198ESZ-REEL is a precision micropower, low dropout voltage (LDV) reference IC from Analog Devices Inc. This device is part of the REF19x series, known for its high accuracy and stability over a wide range of temperatures. The REF198ESZ-REEL provides a fixed output voltage of 4.096V with a high initial accuracy and low temperature coefficient, making it suitable for various precision voltage reference applications.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VO | IOUT = 0 mA | 4.091 | 4.096 | 4.101 | V |
| Initial Accuracy | - | IOUT = 0 mA | - | - | ±0.05% | - |
| Temperature Coefficient | TCVO | -40°C to +85°C | - | - | 5 ppm/°C | - |
| Line Regulation | ΔVO/ΔVIN | 4.75 V ≤ VS ≤ 15 V, IOUT = 0 mA | - | - | 4 ppm/V | - |
| Load Regulation | ΔVO/ΔILOAD | VS = 5.8 V, 0 mA ≤ IOUT ≤ 30 mA | - | - | 4 ppm/mA | - |
| Dropout Voltage | VS - VO | VS = 5.00 V, ILOAD = 10 mA | - | - | 0.50 V | - |
| Supply Current | IS | - | - | - | 45 μA | - |
| Sleep Mode Current | ISLEEP | - | - | - | 15 μA | - |
| Output Current | IOUT | - | - | - | 30 mA | - |
| Package Type | - | - | - | - | 8-Lead SOIC | - |
Key Features
- Precision Output Voltage: The REF198ESZ-REEL provides a precise output voltage of 4.096V with high initial accuracy and low temperature coefficient.
- Low Dropout Voltage: The device can operate with supplies as low as 100 mV above the output voltage.
- Low Supply Current: It consumes less than 45 μA of supply current and reduces to less than 15 μA in sleep mode.
- High Output Current: Capable of delivering up to 30 mA of output current.
- Temperature Stability: Specified over the extended industrial temperature range (−40°C to +85°C) with typical performance up to +125°C.
- Package Options: Available in an 8-lead SOIC package.
- Sleep Mode: The output can be turned off and supply current reduced by applying a low TTL or CMOS level to the SLEEP pin.
Applications
The REF198ESZ-REEL is suitable for a variety of applications requiring precise voltage references, including:
- Automotive systems
- Industrial control systems
- Medical devices
- Telecommunication equipment
- High-precision measurement and data acquisition systems
Q & A
- What is the output voltage of the REF198ESZ-REEL?
The output voltage of the REF198ESZ-REEL is 4.096V.
- What is the initial accuracy of the REF198ESZ-REEL?
The initial accuracy is ±0.05%.
- What is the temperature coefficient of the REF198ESZ-REEL?
The temperature coefficient is 5 ppm/°C maximum.
- How much current does the REF198ESZ-REEL consume in normal operation?
The device consumes less than 45 μA of supply current.
- What is the sleep mode current of the REF198ESZ-REEL?
In sleep mode, the supply current is reduced to less than 15 μA.
- What is the maximum output current of the REF198ESZ-REEL?
The device can deliver up to 30 mA of output current.
- In what temperature range is the REF198ESZ-REEL specified?
The device is specified over the extended industrial temperature range (−40°C to +85°C).
- What package type is the REF198ESZ-REEL available in?
The device is available in an 8-lead SOIC package.
- How do you enable sleep mode on the REF198ESZ-REEL?
Sleep mode is enabled by applying a low TTL or CMOS level to the SLEEP pin.
- What are some typical applications for the REF198ESZ-REEL?
Typical applications include automotive systems, industrial control systems, medical devices, telecommunication equipment, and high-precision measurement and data acquisition systems.
