Overview
The LTC2345-16, produced by Analog Devices Inc., is a high-performance, 16-bit, octal analog-to-digital converter (ADC) designed for simultaneous sampling applications. This successive approximation register (SAR) ADC features differential inputs with a wide common mode range, making it suitable for a variety of signal processing tasks. The device operates from a 5V low voltage supply and includes an internal reference and buffer, allowing for flexible configuration of the input voltage span on a per-channel basis.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Number of Channels | 8 |
| Sampling Rate | 200 ksps |
| Input Range | ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V |
| Input Common Mode Range | Wide common mode range |
| CMRR | 102 dB |
| INL | ±1.25 LSB |
| SNR | 91 dB |
| Supply Voltage | 5V |
| Interface | SPI CMOS (1.8V to 5V), LVDS |
| Package | 48-Lead QFN (7mm x 7mm x 0.75mm) |
Key Features
- Simultaneous sampling of all 8 channels
- Differential inputs with wide common mode range
- Flexible SoftSpan™ interface for conversion-by-conversion control of input voltage span
- Internal 2.048V reference and 2× buffer
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces
- Low noise and high speed operation
- No missing codes at 16 bits
Applications
The LTC2345-16 is ideal for applications requiring high accuracy and wide dynamic range, such as industrial control systems, medical devices, and test and measurement equipment. Its ability to directly digitize a variety of signals simplifies signal chain design, making it a versatile choice for various industrial and scientific applications.
Q & A
- What is the resolution of the LTC2345-16 ADC?
The LTC2345-16 has a resolution of 16 bits. - How many channels does the LTC2345-16 support?
The LTC2345-16 supports 8 channels. - What is the sampling rate of the LTC2345-16?
The sampling rate of the LTC2345-16 is 200 ksps. - What are the input voltage ranges supported by the LTC2345-16?
The LTC2345-16 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 LTC2345-16?
The CMRR of the LTC2345-16 is 102 dB. - What is the integral non-linearity (INL) of the LTC2345-16?
The INL of the LTC2345-16 is ±1.25 LSB. - What is the signal-to-noise ratio (SNR) of the LTC2345-16?
The SNR of the LTC2345-16 is 91 dB. - What supply voltage does the LTC2345-16 operate from?
The LTC2345-16 operates from a 5V supply voltage. - What interfaces are supported by the LTC2345-16?
The LTC2345-16 supports SPI CMOS (1.8V to 5V) and LVDS serial interfaces. - What is the package type of the LTC2345-16?
The LTC2345-16 is packaged in a 48-Lead QFN (7mm x 7mm x 0.75mm).
