Overview
The LTC2379HMS-18#TRPBF is a high-performance, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is renowned for its low noise, low power consumption, and high speed, making it ideal for a wide range of high-speed applications. Operating from a single 2.5V supply, the LTC2379-18 offers a fully differential input range and supports various logic levels for its SPI-compatible serial interface.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sample Rate | 1.6 Msps |
| Supply Voltage | 2.5V |
| Input Range | ±VREF (2.5V to 5.1V) |
| Signal-to-Noise Ratio (SNR) | 101.2 dB |
| Integral Nonlinearity (INL) | ±2 LSB |
| Power Consumption | 18 mW |
| Package | 16-MSOP |
| Logic Levels | 1.8V, 2.5V, 3.3V, 5V |
Key Features
- Low Noise and High Speed: The LTC2379-18 achieves a high signal-to-noise ratio (SNR) of 101.2 dB and operates at a sample rate of 1.6 Msps.
- Low Power Consumption: The device consumes only 18 mW of power and automatically powers down between conversions to reduce power dissipation.
- Digital Gain Compression (DGC): This feature eliminates the need for a negative supply voltage for the driver amplifier while preserving the full resolution of the ADC.
- SPI-Compatible Serial Interface: Supports daisychain mode and various logic levels (1.8V, 2.5V, 3.3V, 5V).
- Internal Oscillator: Sets the conversion time, simplifying external timing considerations.
Applications
The LTC2379-18 is suited for a variety of high-speed applications, including industrial automation, medical devices, data acquisition systems, and high-performance measurement instruments. Its low power consumption and high accuracy make it particularly useful in battery-powered devices and systems requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the LTC2379-18 ADC?
The LTC2379-18 has a resolution of 18 bits. - What is the sample rate of the LTC2379-18?
The sample rate is 1.6 Msps. - What is the supply voltage for the LTC2379-18?
The device operates from a single 2.5V supply. - What is the input range of the LTC2379-18?
The input range is ±VREF with VREF ranging from 2.5V to 5.1V. - What is the signal-to-noise ratio (SNR) of the LTC2379-18?
The SNR is 101.2 dB. - How much power does the LTC2379-18 consume?
The device consumes 18 mW of power. - Does the LTC2379-18 have an internal oscillator?
Yes, it has an internal oscillator that sets the conversion time. - What is the purpose of the digital gain compression (DGC) feature?
The DGC feature eliminates the need for a negative supply voltage for the driver amplifier while preserving the full resolution of the ADC. - What types of logic levels does the LTC2379-18 support?
The device supports 1.8V, 2.5V, 3.3V, and 5V logic levels. - In what package is the LTC2379-18 available?
The LTC2379-18 is available in a 16-MSOP package.
