LM94CIMT

Product Overview

Category: Integrated Circuit (IC)

Use: Temperature Sensor

Characteristics: - High accuracy - Low power consumption - Small form factor - Digital output - Wide temperature range

Package: SOT-23-6

Essence: The LM94CIMT is a temperature sensor IC that provides accurate temperature measurements in various applications.

Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +125°C
• Accuracy: ±1°C (typical)
• Resolution: 0.0625°C
• Interface: I2C/SMBus compatible

Detailed Pin Configuration

The LM94CIMT has a total of six pins arranged as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| SDA SCL |-- Pin 2: Serial Data (SDA) --| ALERT |-- Pin 3: Alert Output (ALERT) --| A2 A1 |-- Pins 4 and 5: Address Select (A2, A1) --| VDD GND |-- Pin 6: Power Supply (VDD) |___________| ```

Functional Features

• High-resolution temperature sensing
• Programmable temperature limits with alert output
• Shutdown mode for power saving
• SMBus/I2C compatible interface for easy integration
• Nonvolatile memory for storing configuration settings

Advantages and Disadvantages

Advantages: - High accuracy ensures precise temperature measurements - Low power consumption extends battery life in portable devices - Small form factor allows for space-constrained applications - Digital output simplifies interfacing with microcontrollers

Disadvantages: - Limited temperature range compared to some other temperature sensors - Requires external pull-up resistors for I2C/SMBus communication

Working Principles

The LM94CIMT utilizes a bandgap voltage reference and a temperature sensor to accurately measure the ambient temperature. The analog signal is converted into a digital value using an internal ADC. The temperature data can be accessed through the I2C/SMBus interface.

Detailed Application Field Plans

The LM94CIMT is suitable for a wide range of applications, including but not limited to: - Consumer electronics - Industrial automation - HVAC systems - Medical devices - Automotive electronics

Detailed and Complete Alternative Models

1. LM75A: Digital Temperature Sensor with I2C Interface
2. TMP102: Low-Power Digital Temperature Sensor
3. DS18B20: Programmable Resolution 1-Wire Digital Thermometer
4. MCP9808: High Accuracy I2C Temperature Sensor
5. MAX31855: Thermocouple-to-Digital Converter

These alternative models offer similar functionality and can be considered based on specific application requirements.

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