Overview
The LTC2145CUP-14 is a 14-bit, dual-channel, simultaneous sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed 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 options and configuration capabilities.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 125 Msps | |
| Signal-to-Noise Ratio (SNR) | 73.1 dB | dBFS |
| Spurious Free Dynamic Range (SFDR) | 90 dB | dBFS |
| Power Consumption | 189 mW (total), 95 mW per channel | mW |
| Supply Voltage | 1.8 V | V |
| Output Types | CMOS, DDR CMOS, DDR LVDS | |
| Input Ranges | 1 Vpp to 2 Vpp | Vpp |
| Full Power Bandwidth | 750 MHz | MHz |
| Package | 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP) |
Key Features
- Two-channel simultaneous sampling
- Low power consumption: 189 mW total, 95 mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1Vpp to 2Vpp
- 750 MHz full power bandwidth
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Ultralow jitter of 0.08 ps 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 LTC2145CUP-14 ADC?
The LTC2145CUP-14 has a resolution of 14 bits. - What is the maximum sampling rate of the LTC2145CUP-14?
The maximum sampling rate is 125 Msps. - What is the signal-to-noise ratio (SNR) of the LTC2145CUP-14?
The SNR is 73.1 dB. - What types of output can the LTC2145CUP-14 provide?
The LTC2145CUP-14 can provide CMOS, DDR CMOS, or DDR LVDS outputs. - What is the power consumption of the LTC2145CUP-14?
The total power consumption is 189 mW, with 95 mW per channel. - What is the supply voltage for the LTC2145CUP-14?
The supply voltage is 1.8 V. - What are the selectable input ranges for the LTC2145CUP-14?
The selectable input ranges are from 1 Vpp to 2 Vpp. - Does the LTC2145CUP-14 have any power management features?
Yes, it has shutdown and nap modes for power management. - How is the LTC2145CUP-14 configured?
It is configured via a serial SPI port. - What is the package type of the LTC2145CUP-14?
The package type is a 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP).
