TMP422AMDCNTEP
Board Mount Temperature Sensors Remote and Local Temp SensorTMP422AMDCNTEP
Board Mount Temperature Sensors Remote and Local Temp Sensor
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Manufacturer Part # : TMP422AMDCNTEP
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Package/Case: SOT23-8
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Brand: Texas Instruments
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Product Categories : Analog and Digital Output
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Shipping & Payment
Shipping & Payment
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Service & Packaging
Service & Packaging
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TMP422AMDCNTEP DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The TMP422 is a remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs.
Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.
The TMP422 includes series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to 150°C), and diode fault detection.
The TMP422 is available in a SOT23-8 package.
Key Features
- Fault-Tolerant Design for Increased Reliability
- Dual-Channel Analog-to-Digital Converter
- Synchronous Bus Interface with Error Detection
- Automatic Gain Control (AGC) Feature
- High-Speed Data Transmission up to 8Mbps
- Error-Free Data Transfer using CRC Code
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Local sensor accuracy (max) | 2.5 | Type | Remote |
Operating temperature range (°C) | -55 to 125 | Supply voltage (min) (V) | 2.7 |
Interface type | I2C, SMBus | Supply voltage (max) (V) | 5.5 |
Features | One-shot conversion | Supply current (max) (µA) | 38 |
Temp resolution (max) (Bits) | 12 | Remote channels (#) | 2 |
Addresses | 4 | Rating | HiRel Enhanced Product |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is TMP422AMDCNTEP?
The TMP422AMDCNTEP is a high-accuracy, low-power, digital temperature sensor designed by Texas Instruments. It is ideal for applications requiring precise temperature measurement and monitoring, such as industrial systems, medical devices, and consumer electronics.
How Does TMP422AMDCNTEP Work?
The TMP422AMDCNTEP operates by sensing temperature using an integrated sensor element and converting the analog temperature signal into digital data. It communicates the temperature readings digitally, providing accurate temperature information for system control and monitoring. The sensor features low power consumption and high accuracy for reliable temperature measurements.
How Many Pins does TMP422AMDCNTEP have and What are the Functions of the Pinout Configuration?
The TMP422AMDCNTEP is housed in a 6-pin SOT-23 package. The pinout configuration includes:
- V+: Power supply pin.
- GND: Ground pin.
- SDA: Serial data input/output for communication.
- SCL: Serial clock input for communication.
- ALERT: Alert output for temperature threshold detection.
- A0: Address input pin for device addressing.
What are the Pros and Cons of TMP422AMDCNTEP?
Pros:
- High Accuracy: Provides precise temperature measurements for critical applications.
- Low Power Consumption: Operates with low power, suitable for battery-powered devices.
- Digital Output: Offers digital temperature data for easy interfacing with microcontrollers and digital systems.
- Alert Functionality: Includes an alert output for temperature threshold detection and system control.
- Compact Package: The 6-pin SOT-23 package is space-efficient for compact designs.
Cons:
- External Components: May require additional external components for specific applications.
- Accuracy vs. Cost: Higher accuracy temperature sensors like the TMP422AMDCNTEP may come at a higher cost.
- Interface Complexity: Requires I2C communication for temperature data retrieval.
Are There Any Equivalents/Alternatives to TMP422AMDCNTEP for Recommendation?
- The LM75 from Texas Instruments is a similar digital temperature sensor with I2C interface.
- Alternatives to the TMP422AMDCNTEP include the DS18B20 from Maxim Integrated and the MCP9808 from Microchip Technology.
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