Overview
The LT1461DHS8-3#PBF, produced by Analog Devices Inc., is a member of the LT1461 family of low dropout micropower band-gap references. These devices are designed to offer high accuracy, low drift, and low supply current, making them ideal for low power and portable applications. The LT1461 series utilizes advanced curvature compensation techniques and trimmed precision thin-film resistors to achieve high output accuracy and a low temperature coefficient. The devices are available in various output voltage options, including 2.5V, 3V, 3.3V, 4.096V, and 5V, with the LT1461DHS8-3#PBF specifically providing a 3.3V output voltage.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Output Voltage | - | -0.04% | - | 0.04% | % |
| Output Voltage Temperature Coefficient | -40°C to 125°C | 3 | - | 12 | ppm/°C |
| Supply Current | - | - | 35 | 50 | µA |
| Output Current | - | - | - | 50 | mA |
| Dropout Voltage | IOUT = 50mA | - | - | 0.3 | V |
| Line Regulation | 0.5V ≤ VIN ≤ 20V | 2 | - | 12 | ppm/V |
| Load Regulation | 0 ≤ IOUT ≤ 50mA | 12 | - | 30 | ppm/mA |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| Package Type | - | - | - | 8-Lead SOIC (Narrow 0.15 Inch) | - |
Key Features
- High Accuracy: The LT1461DHS8-3#PBF offers high output accuracy with a maximum error of 0.04%.
- Low Drift: The device features a low temperature coefficient of 3ppm/°C, ensuring minimal output voltage shift over temperature.
- Low Supply Current: It draws only 35µA of supply current, making it suitable for low power applications.
- High Output Drive: The device can source up to 50mA of output current, making it suitable for higher power requirements.
- Low Dropout Voltage: A dropout voltage of less than 300mV ensures maximum battery life while maintaining full reference performance.
- Excellent Thermal Regulation: The device exhibits excellent load and thermal regulation, which does not significantly add to system error budgets.
- Shutdown Feature: The LT1461 includes a shutdown feature that can be used to switch full load currents and for system power down.
- Thermal Limiting: The device is protected by thermal shutdown to prevent overload conditions.
Applications
The LT1461DHS8-3#PBF is suitable for a variety of applications, including:
- Low Power and Portable Devices: Due to its low supply current, it is ideal for battery-powered devices and other low power applications.
- Precision Regulators: The high output drive capability makes it suitable for precision regulators and other high current applications).
- Automotive Applications: Versions with the #W suffix are available for automotive applications, supporting the quality and reliability requirements of such systems).
- General Purpose Voltage References: It can be used in any application requiring a stable and accurate voltage reference).
Q & A
- What is the output voltage of the LT1461DHS8-3#PBF?
The output voltage of the LT1461DHS8-3#PBF is 3.3V).
- What is the maximum supply current of the LT1461DHS8-3#PBF?
The maximum supply current is 50µA).
- What is the temperature coefficient of the LT1461DHS8-3#PBF?
The temperature coefficient is 3ppm/°C).
- What is the maximum output current of the LT1461DHS8-3#PBF?
The device can source up to 50mA of output current).
- What is the dropout voltage of the LT1461DHS8-3#PBF?
The dropout voltage is less than 300mV).
- Does the LT1461DHS8-3#PBF have a shutdown feature?
Yes, it includes a shutdown feature for system power down and to switch full load currents).
- What is the operating temperature range of the LT1461DHS8-3#PBF?
The operating temperature range is from –40°C to 125°C).
- What package type is the LT1461DHS8-3#PBF available in?
The device is available in an 8-Lead SOIC (Narrow 0.15 Inch) package).
- Is the LT1461DHS8-3#PBF suitable for automotive applications?
Yes, versions with the #W suffix are available for automotive applications).
- What are the key applications of the LT1461DHS8-3#PBF?
It is suitable for low power and portable devices, precision regulators, and general purpose voltage references).
