Overview
The LTC2123CUK, produced by Analog Devices Inc., is a dual-channel, 14-bit analog-to-digital converter (ADC) that operates at a sampling rate of 250 Msps. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features a 5Gbps JESD204B serial interface, which simplifies PCB design by minimizing the number of data lines required. The ADC has a single 1.8V supply and supports both internal and external reference options. It is packaged in a 48-lead QFN (7mm x 7mm) with an exposed pad, ensuring efficient thermal management and compact design.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Sampling Rate | 250 | Msps |
| Number of Bits | 14 | |
| Number of A/D Converters | 2 | |
| Input Type | Differential | |
| Input Bandwidth | 1.25 GHz | |
| SNR | 70 dBFS | |
| SFDR | 90 dBFS | |
| Supply Voltage (Analog/Digital) | 1.7 V ~ 1.9 V | |
| Package Type | 48-QFN (7x7 mm) | |
| Operating Temperature | 0°C ~ 70°C | |
| Data Interface | JESD204B | |
| Power Consumption | 864 mW (Total) |
Key Features
- Simultaneous sampling of two channels
- 5Gbps JESD204B serial interface
- 70 dBFS SNR and 90 dBFS SFDR for high AC performance
- Single 1.8V supply with low power consumption (864 mW total)
- Optional clock divide-by-two circuit and clock duty cycle stabilizer
- Low power sleep and nap modes
- Serial SPI port for configuration
- Internal and external reference options
- 1.25 GHz full power bandwidth S/H
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Medical Imaging
- High Definition Video
- Test and Measurement Instrumentation
Q & A
- What is the sampling rate of the LTC2123CUK? The sampling rate of the LTC2123CUK is 250 Msps.
- How many channels does the LTC2123CUK support? The LTC2123CUK supports two simultaneous sampling channels.
- What is the resolution of the LTC2123CUK? The resolution of the LTC2123CUK is 14 bits.
- What type of input does the LTC2123CUK have? The LTC2123CUK has differential inputs.
- What is the input bandwidth of the LTC2123CUK? The input bandwidth of the LTC2123CUK is 1.25 GHz.
- What is the SNR and SFDR of the LTC2123CUK? The SNR is 70 dBFS, and the SFDR is 90 dBFS.
- What is the supply voltage range for the LTC2123CUK? The supply voltage range is 1.7 V to 1.9 V for both analog and digital supplies.
- What type of package does the LTC2123CUK come in? The LTC2123CUK comes in a 48-QFN (7x7 mm) package with an exposed pad.
- What is the operating temperature range of the LTC2123CUK? The operating temperature range is 0°C to 70°C.
- What data interface does the LTC2123CUK use? The LTC2123CUK uses a 5Gbps JESD204B serial interface.
