Overview
The LTC2172CUKG-14, produced by Analog Devices Inc., is a high-performance 14-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This 4-channel, simultaneous sampling ADC is particularly suited for demanding communications applications, offering exceptional AC performance with a signal-to-noise ratio (SNR) of 73.7dB and a spurious free dynamic range (SFDR) of 90dB. The converter features an ultralow jitter of 0.15ps RMS, enabling effective undersampling of intermediate frequencies with excellent noise performance. It operates on a single 1.8V supply and is available in a 52-lead QFN package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 | Bits |
| Number of Channels | 4 | |
| Sampling Rate | 65 MS/s | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Digital Supply Voltage | 1.7V to 1.9V | V |
| SNR | 73.7 dB | |
| SFDR | 90 dB | |
| Jitter | 0.15 ps RMS | |
| Integral Nonlinearity (INL) | ±1 LSB | |
| Differential Nonlinearity (DNL) | ±0.3 LSB | |
| Power Dissipation | 311 mW | |
| Package | 52-Lead QFN (7mm x 8mm x 0.75mm) |
Key Features
- Simultaneous Sampling: All four channels sample simultaneously, ensuring synchronized data acquisition.
- High-Speed Sampling: Supports sampling rates up to 65 MS/s.
- Low Power Consumption: Total power dissipation of 311 mW, with 78 mW per channel.
- Serial LVDS Outputs: Outputs data in serial LVDS format, minimizing the number of data lines. Supports 1-lane or 2-lane mode.
- Selectable Input Ranges: Input ranges from 1V P-P to 2V P-P.
- Internal Clock Duty Cycle Stabilizer: Ensures high performance across a wide range of clock duty cycles.
- Shutdown and Nap Modes: Reduces power consumption during idle periods.
- Serial SPI Port for Configuration: Allows for flexible configuration and control.
Applications
- Communications: Ideal for cellular base stations, software-defined radios, and other high-frequency communication systems.
- Portable Medical Imaging: Suitable for medical imaging devices that require high-resolution and low-power consumption.
- Multichannel Data Acquisition: Used in various data acquisition systems requiring simultaneous sampling of multiple channels.
- Nondestructive Testing: Applied in testing equipment that demands high accuracy and speed.
- Industrial Automation: Utilized in industrial automation systems for precise measurement and control.
Q & A
- What is the resolution of the LTC2172CUKG-14 ADC?
The LTC2172CUKG-14 has a resolution of 14 bits.
- How many channels does the LTC2172CUKG-14 support?
The LTC2172CUKG-14 supports 4 channels.
- What is the maximum sampling rate of the LTC2172CUKG-14?
The maximum sampling rate is 65 MS/s.
- What is the typical SNR of the LTC2172CUKG-14?
The typical signal-to-noise ratio (SNR) is 73.7 dB.
- What is the spurious free dynamic range (SFDR) of the LTC2172CUKG-14?
The SFDR is 90 dB.
- What is the jitter performance of the LTC2172CUKG-14?
The jitter is 0.15 ps RMS.
- What are the power supply requirements for the LTC2172CUKG-14?
The device operates on a single 1.8V supply for both analog and digital sections.
- What is the package type of the LTC2172CUKG-14?
The device is packaged in a 52-lead QFN (7mm x 8mm x 0.75mm).
- Does the LTC2172CUKG-14 support differential and single-ended inputs?
Yes, the device supports both differential and single-ended inputs.
- What are some common applications of the LTC2172CUKG-14?
Common applications include communications, portable medical imaging, multichannel data acquisition, and nondestructive testing.
