Overview
The LTC2140CUP-14#PBF is a high-performance, 14-bit, dual analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for applications requiring simultaneous sampling of high-frequency, wide dynamic range signals. It features low power consumption and excellent AC performance, making it suitable for demanding communications and other high-speed applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 25 Msps |
| Signal-to-Noise Ratio (SNR) | 73.2 dB |
| Spurious Free Dynamic Range (SFDR) | 90 dB |
| Power Supply | Single 1.8V |
| Power Consumption | 95mW / 67mW / 50mW total, 48mW / 34mW / 25mW per channel |
| Input Range | Selectable: 1V P-P to 2V P-P |
| Full Power Bandwidth S/H | 750 MHz |
| Output Type | CMOS, DDR CMOS, or DDR LVDS |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm with exposed pad) |
Key Features
- Two-channel simultaneously sampling ADC
- Low power consumption with shutdown and nap modes
- Optional data output randomizer and clock duty cycle stabilizer
- Serial SPI port for configuration
- Ultralow jitter of 0.08ps RMS
- DC specs include ±1LSB INL (typ), ±0.3LSB DNL (typ), and no missing codes over temperature
- Transition noise of 1.2LSB RMS
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the resolution of the LTC2140CUP-14#PBF?
The resolution is 14 bits. - What is the sampling rate of this ADC?
The sampling rate is 25 Msps. - What is the signal-to-noise ratio (SNR) of this ADC?
The SNR is 73.2 dB. - What types of output can the LTC2140CUP-14#PBF provide?
The outputs can be CMOS, DDR CMOS, or DDR LVDS. - What is the power supply requirement for this ADC?
The ADC requires a single 1.8V supply. - What are the selectable input ranges for this ADC?
The input ranges are selectable from 1V P-P to 2V P-P. - Does the LTC2140CUP-14#PBF support any power-saving modes?
Yes, it supports shutdown and nap modes. - What is the package type of the LTC2140CUP-14#PBF?
The package is a 64-Lead QFN (9mm x 9mm x 0.75mm with exposed pad). - What are some typical applications of the LTC2140CUP-14#PBF?
Typical applications include communications, cellular base stations, software defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing. - Does the LTC2140CUP-14#PBF have any optional features?
Yes, it has optional features such as data output randomizer and clock duty cycle stabilizer.
