Overview
The LTC2140CUP-14#TRPBF is a 14-bit, dual-channel, simultaneously sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications and other high-performance applications. It features excellent AC performance, low power consumption, and a range of configurable output options.
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 Consumption | 95mW / 67mW / 50mW total, 48mW / 34mW / 25mW per channel |
| Supply Voltage | Single 1.8V |
| Input Range | 1V P-P to 2V P-P |
| Full Power Bandwidth S/H | 750 MHz |
| Output Options | CMOS, DDR CMOS, or DDR LVDS |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm) |
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
- Separate output power supply allowing CMOS output swing from 1.2V to 1.8V
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#TRPBF ADC?
The resolution of the LTC2140CUP-14#TRPBF 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 device?
The SNR is 73.2 dB. - What are the power consumption options for this ADC?
The total power consumption is 95mW, 67mW, or 50mW, with per-channel consumption of 48mW, 34mW, or 25mW. - What are the output options for the digital data?
The digital outputs can be CMOS, DDR CMOS, or DDR LVDS. - What is the package type and size of the LTC2140CUP-14#TRPBF?
The package is a 64-Lead QFN measuring 9mm x 9mm x 0.75mm. - What are the input range options for this ADC?
The input range can be selected from 1V P-P to 2V P-P. - Does the LTC2140CUP-14#TRPBF support any power-saving modes?
Yes, it supports shutdown and nap modes. - How can the device be configured?
The device can be configured via a serial SPI port. - What is the jitter performance of this ADC?
The ultralow jitter is 0.08ps RMS.
