Overview
The LTC2378CMS-20#TRPBF is a high-performance, 20-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high-speed, low-power applications and features a serial output interface. It operates from a single 2.5V supply and is known for its low noise and high linearity, making it suitable for a wide range of precision measurement and data acquisition systems.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 20 |
| Sampling Rate | 1 Msps |
| Supply Voltage (Digital and Analog) | 2.5V |
| Input Type | Fully Differential |
| Reference Type | External |
| Input Range | ±5V |
| Signal-to-Noise Ratio (SNR) | 104 dB |
| Integral Non-Linearity (INL) | ±2 ppm max |
| Power Consumption | 21 mW |
| Data Interface | SPI-compatible serial interface |
| Package | 16-MSOP |
| Operating Temperature | 0°C to 70°C |
Key Features
- High Resolution and Linearity: 20-bit resolution with ±2 ppm INL max and no missing codes.
- Low Power Consumption: Operates at 21 mW, with automatic power-down between conversions to reduce power dissipation.
- High-Speed Conversion: 1 Msps sampling rate with no cycle latency.
- Digital Gain Compression (DGC): Eliminates the need for a negative supply voltage while preserving full resolution.
- Flexible Interface: SPI-compatible serial interface supporting 1.8V, 2.5V, 3.3V, and 5V logic, with daisy-chain mode.
- Internal Oscillator: Sets the conversion time, simplifying external timing considerations.
Applications
- Precision Measurement Systems: Ideal for applications requiring high accuracy and low noise, such as test and measurement equipment.
- Data Acquisition Systems: Suitable for high-speed data acquisition in industrial, medical, and scientific instruments.
- Industrial Automation: Used in control systems and monitoring applications where precise analog-to-digital conversion is necessary.
- Medical Devices: Applicable in medical imaging and diagnostic equipment that require high-resolution ADCs.
Q & A
- What is the resolution of the LTC2378CMS-20#TRPBF ADC?
The LTC2378CMS-20#TRPBF has a 20-bit resolution.
- What is the sampling rate of the LTC2378CMS-20#TRPBF?
The sampling rate is 1 Msps.
- What is the supply voltage for the LTC2378CMS-20#TRPBF?
The device operates from a single 2.5V supply.
- What type of input does the LTC2378CMS-20#TRPBF support?
The device supports fully differential inputs.
- What is the signal-to-noise ratio (SNR) of the LTC2378CMS-20#TRPBF?
The SNR is 104 dB.
- Does the LTC2378CMS-20#TRPBF have any power-saving features?
Yes, it automatically powers down between conversions to reduce power dissipation.
- What is the data interface of the LTC2378CMS-20#TRPBF?
The device features an SPI-compatible serial interface.
- What is the operating temperature range of the LTC2378CMS-20#TRPBF?
The operating temperature range is 0°C to 70°C.
- Does the LTC2378CMS-20#TRPBF support daisy-chain mode?
Yes, it supports daisy-chain mode for multiple device configurations.
- What is the purpose of the Digital Gain Compression (DGC) feature in the LTC2378CMS-20#TRPBF?
The DGC feature eliminates the need for a negative supply voltage while preserving the full resolution of the ADC.
