Overview
The LTC2345IUK-18#TRPBF is an 18-bit, low noise, octal analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the successive approximation register (SAR) ADC family and is known for its high precision and flexibility. It features differential inputs with a wide common mode range, making it suitable for a variety of signal processing applications. The ADC operates from a 5V low voltage supply and includes an internal reference and buffer, allowing for flexible input voltage span configuration on a per-channel basis.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Number of Channels | 8 |
| Sampling Rate | 200 ksps |
| Input Voltage Range | ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V |
| Input Common Mode Range | Wide common mode range |
| CMRR | 102 dB |
| SNR | 91.8 dB |
| INL | ±5 LSB |
| Supply Voltage | 5V |
| Package | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) |
| Interface | SPI CMOS (1.8V to 5V), LVDS |
Key Features
- Simultaneous sampling of all eight channels
- Flexible SoftSpan™ interface allowing conversion-by-conversion control of the input voltage span on a per-channel basis
- Internal 2.048V reference and 2× buffer for simplified operation
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces
- Option to use between one and eight lanes of data output in CMOS mode for optimized bus width and throughput
- No missing codes at 18 bits and high linearity with ±5 LSB INL
Applications
The LTC2345IUK-18#TRPBF is ideal for applications requiring high precision and wide dynamic range, such as industrial automation, medical devices, test and measurement equipment, and high-end data acquisition systems. Its ability to directly digitize a variety of signals with a wide input common mode range simplifies signal chain design, making it a versatile choice for complex signal processing tasks.
Q & A
- What is the resolution of the LTC2345IUK-18#TRPBF ADC?
The LTC2345IUK-18#TRPBF has an 18-bit resolution. - How many channels does the LTC2345IUK-18#TRPBF support?
The device supports eight simultaneous sampling channels. - What is the sampling rate of the LTC2345IUK-18#TRPBF?
The sampling rate is 200 ksps. - What are the input voltage ranges supported by the LTC2345IUK-18#TRPBF?
The device supports input voltage ranges of ±4.096V, 0V to 4.096V, ±2.048V, and 0V to 2.048V. - What is the common mode rejection ratio (CMRR) of the LTC2345IUK-18#TRPBF?
The CMRR is 102 dB. - What is the signal-to-noise ratio (SNR) of the LTC2345IUK-18#TRPBF?
The SNR is 91.8 dB. - What is the integral non-linearity (INL) of the LTC2345IUK-18#TRPBF?
The INL is ±5 LSB. - What supply voltage does the LTC2345IUK-18#TRPBF operate from?
The device operates from a 5V supply voltage. - What package type is the LTC2345IUK-18#TRPBF available in?
The device is available in a 48-Lead QFN package (7mm x 7mm x 0.75mm w/ EP). - What interfaces does the LTC2345IUK-18#TRPBF support?
The device supports SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
