Overview
The LTC6655LNBHMS8-2.5#PBF is a precision bandgap voltage reference from Analog Devices Inc., known for its exceptional noise and drift performance. This component is part of the LTC6655 family, which is ideally suited for high-resolution measurements in instrumentation, test equipment, and various industrial applications. The LTC6655LN variant includes a noise reduction pin, allowing for the reduction of wideband noise with the addition of a single capacitor. It offers superior load regulation, source and sink current capability, and excellent line rejection, ensuring consistent performance across a wide range of operating conditions. A low power shutdown mode is also available, making it suitable for power-sensitive applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Voltage | 2.5 | V |
| Initial Accuracy | ±0.025% | % |
| Temperature Coefficient | 2 ppm/°C | ppm/°C |
| Noise (0.1Hz to 10Hz) | 0.12 ppm P-P (CNR = 100µF) | ppm P-P |
| Noise (10Hz to 1kHz) | 0.21 ppm RMS (CNR = 100µF) | ppm RMS |
| Load Regulation | < 10 ppm/mA | ppm/mA |
| Source and Sink Current | ±5 mA | mA |
| Low Dropout Voltage | 500 mV | mV |
| Maximum Supply Voltage | 13.2 V | V |
| Shutdown Current | < 20 µA | µA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 8-Lead MSOP |
Key Features
- Low Noise and Drift: Exceptional noise and drift performance, with noise as low as 0.12 ppm P-P (0.1Hz to 10Hz) and drift of 2 ppm/°C.
- High Accuracy: Output voltage accurate to ±0.025%.
- Load Regulation and Line Rejection: Superior load regulation and exceptional line rejection ensure consistent performance over a wide range of operating conditions.
- Source and Sink Capability: Capable of sourcing and sinking up to ±5 mA of current.
- Low Dropout Voltage: Can be powered from as little as 500 mV above the output voltage.
- Low Power Shutdown: Shutdown mode available for low power applications, with a current of less than 20 µA.
- Noise Reduction Pin: The LTC6655LN variant includes a noise reduction pin to reduce wideband noise with a single capacitor.
- Hermetic Package Option: Available in an 8-lead LS8 hermetic package for outstanding stability.
Applications
- Instrumentation and Test Equipment: Ideal for high-resolution measurements.
- High Resolution Data Acquisition Systems: Suitable for systems requiring precise voltage references.
- Weigh Scales and Precision Battery Monitors: Used in applications where accurate voltage references are critical.
- Precision Regulators and Medical Equipment: Applied in various precision and medical devices requiring stable voltage references.
- Automotive and Industrial Applications: Fully specified over the temperature range of –40°C to 125°C, making it suitable for demanding environments.
Q & A
- What is the output voltage of the LTC6655LNBHMS8-2.5#PBF?
The output voltage is 2.5 V.
- What is the initial accuracy of the LTC6655LNBHMS8-2.5#PBF?
The initial accuracy is ±0.025%.
- What is the temperature coefficient of the LTC6655LNBHMS8-2.5#PBF?
The temperature coefficient is 2 ppm/°C.
- How much noise does the LTC6655LNBHMS8-2.5#PBF produce in the 0.1Hz to 10Hz range?
The noise is 0.12 ppm P-P (CNR = 100µF) in the 0.1Hz to 10Hz range.
- What is the load regulation of the LTC6655LNBHMS8-2.5#PBF?
The load regulation is less than 10 ppm/mA.
- Can the LTC6655LNBHMS8-2.5#PBF source and sink current?
Yes, it can source and sink up to ±5 mA of current.
- What is the minimum supply voltage required for the LTC6655LNBHMS8-2.5#PBF?
The minimum supply voltage is 500 mV above the output voltage.
- What is the maximum supply voltage for the LTC6655LNBHMS8-2.5#PBF?
The maximum supply voltage is 13.2 V.
- Does the LTC6655LNBHMS8-2.5#PBF have a shutdown mode?
Yes, it has a low power shutdown mode with a current of less than 20 µA.
- What is the operating temperature range of the LTC6655LNBHMS8-2.5#PBF?
The operating temperature range is –40°C to 125°C.
