Overview
The LTC2378CMS-20#PBF is a high-performance, 20-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for low noise, low power, and high-speed applications. It operates from a single 2.5V supply and features a fully differential input range with a reference voltage ranging from 2.5V to 5.1V. The LTC2378CMS-20#PBF is ideal for various high-speed applications due to its fast 1Msps throughput and low power consumption of 21mW.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20 bits |
| Number of Channels | 1 Channel |
| Sampling Rate | 1 MS/s |
| Input Type | Differential |
| Architecture | SAR |
| Analog Supply Voltage | 2.5 V |
| Power Dissipation | 21 mW |
| INL - Integral Nonlinearity | ±2 ppm |
| DNL - Differential Nonlinearity | 0.2 LSB |
| SINAD - Signal to Noise and Distortion Ratio | 104 dB |
| SFDR - Spurious Free Dynamic Range | 128 dB |
| Operating Temperature | 0°C to 70°C |
| Package | 16-Lead MSOP |
| Data Interface | SPI |
Key Features
- Low noise and low power consumption, making it suitable for power-sensitive applications.
- High-speed operation with a sampling rate of 1 MS/s and no cycle latency.
- High resolution of 20 bits with ±2 ppm INL and no missing codes.
- Fully differential input range with a reference voltage from 2.5V to 5.1V.
- SPI-compatible serial interface supporting 1.8V, 2.5V, 3.3V, and 5V logic, with daisy-chain mode.
- Automatic power-down between conversions to reduce power dissipation.
- Internal oscillator for setting the conversion time, easing external timing considerations.
- Digital gain compression (DGC) function to eliminate the need for a negative supply voltage while preserving full resolution.
Applications
- High-speed data acquisition systems.
- Industrial control and automation.
- Medical devices requiring high precision and low noise.
- Aerospace and defense applications where high accuracy and reliability are crucial.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2378CMS-20#PBF ADC?
The LTC2378CMS-20#PBF has a resolution of 20 bits. - What is the sampling rate of the LTC2378CMS-20#PBF?
The sampling rate is 1 MS/s. - What is the input type of the LTC2378CMS-20#PBF?
The input type is differential. - What is the power consumption of the LTC2378CMS-20#PBF?
The power consumption is 21 mW. - What is the operating temperature range of the LTC2378CMS-20#PBF?
The operating temperature range is from 0°C to 70°C. - What interface does the LTC2378CMS-20#PBF use?
The LTC2378CMS-20#PBF uses an SPI-compatible serial interface. - Does the LTC2378CMS-20#PBF support daisy-chain mode?
Yes, it supports daisy-chain mode. - What is the reference voltage range for the LTC2378CMS-20#PBF?
The reference voltage range is from 2.5V to 5.1V. - Does the LTC2378CMS-20#PBF have an internal oscillator?
Yes, it has an internal oscillator for setting the conversion time. - What is the purpose of the digital gain compression (DGC) function in the LTC2378CMS-20#PBF?
The DGC function eliminates the need for a negative supply voltage while preserving the full resolution of the ADC.
