Overview
The LTC2140CUP-14 is a 2-channel simultaneous sampling 14-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This device is optimized for digitizing high frequency, wide dynamic range signals, making it ideal for demanding communications and other high-performance applications. It features low power consumption, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR), along with various output modes and configuration options.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 | Bits |
| Sampling Frequency | 25 | MHz |
| SNR | 73.2 | dB |
| SFDR | 90 | dB |
| Power Consumption (Total) | 50 | mW |
| Power Consumption (Per Channel) | 25 | mW |
| Supply Voltage | 1.8 | V |
| Input Range | 1VP-P to 2VP-P | |
| Full Power Bandwidth S/H | 750 | MHz |
| Output Modes | CMOS, DDR CMOS, DDR LVDS | |
| Package | 64-Pin QFN (9mm x 9mm x 0.75mm) |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 50mW total, 25mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1VP-P to 2VP-P
- 750MHz full power bandwidth sample-and-hold
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
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 ADC?
The LTC2140CUP-14 has a resolution of 14 bits. - What is the sampling frequency of the LTC2140CUP-14?
The sampling frequency of the LTC2140CUP-14 is 25 Msps. - What is the signal-to-noise ratio (SNR) of the LTC2140CUP-14?
The SNR of the LTC2140CUP-14 is 73.2 dB. - What is the spurious free dynamic range (SFDR) of the LTC2140CUP-14?
The SFDR of the LTC2140CUP-14 is 90 dB. - What are the power consumption options for the LTC2140CUP-14?
The total power consumption is 50 mW, with 25 mW per channel. - What are the output modes available for the LTC2140CUP-14?
The output modes include CMOS, DDR CMOS, and DDR LVDS. - What is the package type of the LTC2140CUP-14?
The LTC2140CUP-14 comes in a 64-Pin QFN package (9mm x 9mm x 0.75mm). - What are the input range options for the LTC2140CUP-14?
The input range can be selected from 1VP-P to 2VP-P. - Does the LTC2140CUP-14 support configuration through a serial interface?
Yes, it supports configuration through a serial SPI port. - What are some typical applications of the LTC2140CUP-14?
Typical applications include communications, cellular base stations, software defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
