Overview
The LTC2984CLX#PBF, produced by Analog Devices Inc., is a high-precision, quad-channel external temperature monitoring IC. This device is designed to measure and monitor the temperature of up to four external precision thermistors or RTDs with exceptional accuracy. It features a sigma-delta ADC and a multiplexed input architecture, enabling efficient and accurate multi-channel temperature monitoring.
The LTC2984 is known for its wide temperature measurement range, fast conversion times, and ease of integration through a digital SPI interface. It is suitable for various applications requiring precise temperature monitoring across different environments.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | - | - | 24 Bits | - |
| Accuracy | - | ±0.1°C | - | - |
| Temperature Measurement Range | -265°C | - | 1800°C | - |
| Operating Temperature Range | 0°C | - | 70°C | - |
| Supply Voltage | 2.85V | - | 5.25V | - |
| Conversion Time (all 4 channels) | - | - | 80ms | - |
| Input Referred Noise (H-Grade) | 0.8µV | 1.5µV | 2.0µV | RMS |
| Common Mode Input Range | - | - | VDD + 0.3V | - |
| Package Type | - | - | 48-Lead LQFP (7mm × 7mm) | - |
Key Features
- Measures up to 4 external temperature sensors (thermistors or RTDs)
- Sigma-delta ADC with 16-bit resolution and ±0.1°C accuracy
- Multiplexed input architecture for efficient multi-channel monitoring
- Configurable via register bank accessible through SPI interface
- Fast conversion time: 80ms for all 4 channels
- Supports 2.85V to 5.25V supply voltage
- High-precision temperature monitoring with excellent accuracy
- Flexible multi-channel design for comprehensive thermal management
- Easy integration and configuration through digital SPI interface
- Wide operating temperature range for diverse application environments
Applications
- Industrial automation and control systems
- HVAC and building management systems
- Medical equipment and instrumentation
- Automotive and transportation systems
- Electronics and semiconductor manufacturing
Q & A
- What is the temperature measurement range of the LTC2984CLX#PBF?
The temperature measurement range is from -265°C to 1800°C.
- How many external temperature sensors can the LTC2984CLX#PBF measure?
The device can measure up to 4 external temperature sensors (thermistors or RTDs).
- What is the resolution and accuracy of the LTC2984CLX#PBF?
The device has a 24-bit resolution and an accuracy of ±0.1°C.
- What is the conversion time for all 4 channels of the LTC2984CLX#PBF?
The conversion time for all 4 channels is 80ms.
- What is the supply voltage range for the LTC2984CLX#PBF?
The supply voltage range is from 2.85V to 5.25V.
- How is the LTC2984CLX#PBF configured?
The device is configurable via a register bank accessible through an SPI interface.
- What type of package does the LTC2984CLX#PBF come in?
The device comes in a 48-Lead LQFP (7mm × 7mm) package.
- What are some common applications of the LTC2984CLX#PBF?
Common applications include industrial automation, HVAC systems, medical equipment, automotive systems, and electronics manufacturing.
- Is the LTC2984CLX#PBF currently in production?
Yes, the LTC2984CLX#PBF is an active product and is currently in production.
- What is the operating temperature range for the LTC2984CLX#PBF?
The operating temperature range is from 0°C to 70°C for the C-grade version.
