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Overview

The LTC2378IDE-20 is a low noise, low power, high speed 20-bit successive approximation register (SAR) ADC‌. It uses a single 2.5V operating power supply with a fully differential input range of ±VREF, with VREF variations ranging from 2.5V to 5.1V. The LTC2378IDE-20 consumes only 21mW of power and achieves an integrated nonlinear (INL) maximum of ±2ppm with no code loss at 20 bits and a signal-to-noise ratio (SNR) of 104dB‌.

The LTC2378IDE-20 features a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic, as well as a Daisy chain mode. The high throughput rate and cycle-free delay of 1Msps make the LTC2378IDE-20 ideal for a wide range of high-speed applications. An internal oscillator is responsible for setting the conversion time, alleviating external timing considerations. The LTC2378IDE-20 automatically powers off between conversion operations, thereby reducing power consumption with the sampling rate.

Main characteristics

Low noise and power consumption ‌ : The LTC2378IDE-20 consumes only 21mW at 1Msps sampling rate and 21μW at 1ksps ‌.

High precision ‌ : no lost code at 20 bits, SNR is 104dB, THD is -125dB‌.

High speed ‌ : Throughput rate of 1Msps, LTC2378IDE-20 has no pipeline delay and no cycle delay ‌.

Fully differential input range ‌ : Input range is ±VREF, LTC2378IDE-20 is suitable for a variety of signal processing requirements ‌.

Digital Gain compression (DGC) function ‌ : This function enables the LTC2378IDE-20 to maintain full resolution without a negative power supply and is suitable for applications where high accuracy and stability ‌.

Package mode: The LTC2378IDE-20 comes in a 4mm x 3mm DFN package.

Typical application

1. High-speed data acquisition system ‌

‌LTC2378IDE-20‌ Suitable for spectral analysis, vibration monitoring and other scenarios, its pipeline-free delay feature can capture transient signals in real time, with DGC function to optimize the dynamic range ‌.

2. Industrial Automation and control ‌

PLC and motor drive ‌ : LTC2378IDE-20 for current/voltage closed loop detection, improve control accuracy and response speed ‌.

‌ Power module monitoring ‌ : Integrated in inverters or DC-DC converters, the LTC2378IDE-20 provides high precision temperature and voltage sampling ‌.

3. Medical and testing equipment ‌

‌ Medical Imaging system ‌ : LTC2378IDE-20 supports analog signal digitization of MRI and CT equipment to ensure image resolution and SNR ‌.

Precision test instrument ‌ : LTC2378IDE-20 adaptive oscilloscope, spectrum analyzer, to meet the needs of laboratory level measurement ‌.

To obtain [LTC2378IDE-20] sample or quotation service, please visit www.hkmjd.com for details!