Overview
The LTC2345HUK-16 is a high-performance, 16-bit, 8-channel simultaneous sampling successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2345-16 series and is known for its low noise, high resolution, and wide input common mode range. It operates from a 5V low voltage supply and utilizes an internal reference and buffer, allowing each channel to be independently configured to accept various signal ranges on a conversion-by-conversion basis. The LTC2345HUK-16 is particularly suited for applications requiring precise measurement of multiple signals, such as monitoring sensor outputs, capturing audio signals, or digitizing control voltages.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Number of Channels | 8 | |
| Sampling Rate | 200 kS/s | |
| Input Type | Differential | |
| Input Voltage Range | ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V | V |
| Analog Supply Voltage | 5V | V |
| Digital Supply Voltage | 1.8V to 5V | V |
| Integral Nonlinearity (INL) | ±1.25 LSB | LSB |
| Signal to Noise and Distortion Ratio (SINAD) | 91 dB | dB |
| Common Mode Rejection Ratio (CMRR) | 102 dB | dB |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package/Case | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | |
| Data Interface | SPI CMOS (1.8V to 5V), LVDS |
Key Features
- High-Speed Data Acquisition Capability: Supports up to 200 kS/s sampling rate per channel.
- Simultaneous Sampling: All eight channels sample simultaneously, ensuring accurate and synchronized data capture.
- Advanced Filtering Algorithms Supported: Enhances signal processing capabilities.
- Fully Synchronous Input Architecture: Ensures precise and coordinated data acquisition.
- Limited Power Consumption per Channel: Optimized for low power dissipation, making it suitable for power-sensitive applications.
- Compact 48-Lead QFN Package: Surface mount package for efficient board design.
- EZ-Set Configuration: Allows for quick and easy startup and configuration.
- Wide Input Common Mode Range: Allows direct digitization of a variety of signals, simplifying signal chain design.
Applications
- Consumer Electronics: Suitable for high-performance audio and video applications.
- Automotive Applications: Used in various automotive systems requiring precise signal measurement.
- Wireless Communication: Employed in wireless communication systems for accurate signal processing.
- Industrial Control: Ideal for digitizing control voltages and monitoring sensor outputs in industrial environments.
- Medical Devices: Used in medical equipment requiring high-resolution and low-noise signal conversion.
Q & A
- What is the resolution of the LTC2345HUK-16 ADC?
The LTC2345HUK-16 has a resolution of 16 bits.
- How many channels does the LTC2345HUK-16 support?
The LTC2345HUK-16 supports 8 simultaneous sampling channels.
- What is the sampling rate of the LTC2345HUK-16?
The sampling rate is up to 200 kS/s per channel.
- What are the input voltage ranges for the LTC2345HUK-16?
The input voltage ranges are ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V.
- What is the common mode rejection ratio (CMRR) of the LTC2345HUK-16?
The CMRR is 102 dB.
- What are the supported data interfaces for the LTC2345HUK-16?
The device supports SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- What is the operating temperature range of the LTC2345HUK-16?
The operating temperature range is -40°C to 125°C.
- What is the package type of the LTC2345HUK-16?
The package type is a 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP).
- Can individual channels be disabled on the LTC2345HUK-16?
Yes, individual channels can be disabled to increase throughput on the remaining channels.
- What is the signal to noise and distortion ratio (SINAD) of the LTC2345HUK-16?
The SINAD is 91 dB.
