Overview
The ADT6401SRJZ-RL7, produced by Analog Devices Inc., is a trip point temperature switch designed for precise temperature sensing and switching applications. This device is part of the ADT6401/ADT6402 series and is packaged in a compact 6-lead SOT-23 package. It features an internal band gap temperature sensor that provides local temperature sensing with high accuracy and linearity over a wide temperature range.
The ADT6401SRJZ-RL7 has an active low, open-drain output structure, which can sink current, and it operates within a supply voltage range of 2.7 V to 5.5 V. The device is known for its low power consumption, typically 30 μA of supply current, making it suitable for battery-powered and low-power applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 5.5 | V | ||
| Supply Current | 30 | μA | |||
| Temperature Range | -55 | 125 | °C | ||
| Temperature Resolution | 0.125 | °C | 11-bit resolution | ||
| Temperature Threshold Hysteresis | 2 | 10 | °C | Pin-selectable | |
| Output High Current (IOH) | 10 | nA | Leakage current, VCC = 2.7 V and VOH = 5.5 V | ||
| Output Low Voltage (VOL) | 0.3 | 0.4 | V | IOL = 1.2 mA, VCC = 2.7 V; IOL = 3.2 mA, VCC = 4.5 V | |
| Output Capacitance (COUT) | 10 | pF | RPULL-UP = 10 kΩ |
Key Features
- Precision Temperature Sensing: The ADT6401SRJZ-RL7 features a Σ-Δ based temperature measurement system, providing high accuracy and noise immunity with an 11-bit resolution and a temperature resolution of 0.125°C.
- Pin-Selectable Trip Points: The device allows for pin-selectable temperature trip points, with settings 10°C apart, ranging from -45°C to +5°C for undertemperature switching and from 45°C to 115°C for overtemperature switching.
- Low Power Consumption: It consumes a typical supply current of 30 μA, making it suitable for low-power and battery-powered applications.
- Compact Packaging: The device is packaged in a space-saving 6-lead SOT-23 package, ideal for applications where board space is limited.
- High Accuracy and Linearity: The on-board temperature sensor offers excellent accuracy and linearity over the entire rated temperature range without the need for user calibration or correction.
- Active Low, Open-Drain Output: The ADT6401SRJZ-RL7 has an active low, open-drain output structure that can sink current, suitable for various logic circuits and microcontroller interfaces.
Applications
- Industrial Automation: Used in temperature monitoring and control systems in industrial environments where precise temperature sensing is critical.
- Consumer Electronics: Suitable for temperature monitoring in consumer electronics such as smartphones, laptops, and other portable devices.
- Aerospace and Defense: Applied in aerospace and defense systems where high accuracy and reliability in temperature sensing are essential.
- Medical Devices: Used in medical equipment that requires precise temperature monitoring and control, such as in patient monitoring systems and medical imaging devices.
- Automotive Systems: Employed in automotive systems for engine temperature monitoring, battery management, and other temperature-critical applications).
Q & A
- What is the operating temperature range of the ADT6401SRJZ-RL7?
The operating temperature range is from -55°C to +125°C).
- What is the supply voltage range for the ADT6401SRJZ-RL7?
The supply voltage range is from 2.7 V to 5.5 V).
- What is the typical supply current of the ADT6401SRJZ-RL7?
The typical supply current is 30 μA).
- What is the temperature resolution of the ADT6401SRJZ-RL7?
The temperature resolution is 0.125°C with an 11-bit resolution).
- How are the trip points selected for the ADT6401SRJZ-RL7?
The trip points are pin-selectable, with settings 10°C apart, ranging from -45°C to +5°C for undertemperature switching and from 45°C to 115°C for overtemperature switching).
- What type of output does the ADT6401SRJZ-RL7 have?
The ADT6401SRJZ-RL7 has an active low, open-drain output structure).
- What is the package type of the ADT6401SRJZ-RL7?
The device is packaged in a 6-lead SOT-23 package).
- Does the ADT6401SRJZ-RL7 require calibration or correction by the user?
No, the on-board temperature sensor offers excellent accuracy and linearity over the entire rated temperature range without the need for user calibration or correction).
- What is the typical temperature conversion time for the ADT6401SRJZ-RL7?
The typical temperature conversion time is 30 ms).
- What is the update rate for the temperature conversions in the ADT6401SRJZ-RL7?
The temperature conversions are updated every 600 ms).
