Overview
The LTC2171CUKG-14, produced by Analog Devices Inc., is a 4-channel, simultaneous sampling 14-bit analog-to-digital converter (ADC) designed for digitizing high frequency, wide dynamic range signals. This device is particularly suited for demanding communications applications, offering exceptional AC performance with a signal-to-noise ratio (SNR) of 73.7dB and a spurious free dynamic range (SFDR) of 90dB. The ADC features an ultralow jitter of 0.15ps RMS, enabling the undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 40 Msps | |
| SNR | 73.7 dB | |
| SFDR | 90 dB | |
| Jitter | 0.15 ps RMS | |
| Power Consumption | 311 mW (total), 78 mW (per channel) | |
| Supply Voltage | 1.8 V | |
| Input Range | 1 Vpp to 2 Vpp | |
| Sample-and-Hold Bandwidth | 800 MHz | |
| Package | 52-Lead QFN (7mm x 8mm x 0.75mm) |
Key Features
- 4-channel simultaneous sampling ADC
- Low power consumption: 311 mW total, 78 mW per channel
- Single 1.8V supply
- Serial LVDS outputs with optional internal termination and adjustable output levels
- Selectable input ranges: 1 Vpp to 2 Vpp
- 800 MHz full power bandwidth sample-and-hold
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin-compatible 14-bit and 12-bit versions
Applications
- Communications
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2171CUKG-14 ADC?
The LTC2171CUKG-14 has a resolution of 14 bits.
- What is the sampling rate of the LTC2171CUKG-14?
The sampling rate of the LTC2171CUKG-14 is 40 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2171CUKG-14?
The SNR of the LTC2171CUKG-14 is 73.7 dB.
- What is the spurious free dynamic range (SFDR) of the LTC2171CUKG-14?
The SFDR of the LTC2171CUKG-14 is 90 dB.
- What is the power consumption of the LTC2171CUKG-14?
The total power consumption is 311 mW, with 78 mW per channel.
- What is the supply voltage for the LTC2171CUKG-14?
The supply voltage is 1.8 V.
- What are the input ranges for the LTC2171CUKG-14?
The input ranges are selectable from 1 Vpp to 2 Vpp.
- What is the sample-and-hold bandwidth of the LTC2171CUKG-14?
The sample-and-hold bandwidth is 800 MHz.
- Does the LTC2171CUKG-14 support power management features?
Yes, it supports shutdown and nap modes for power management.
- How is the LTC2171CUKG-14 configured?
It can be configured via a serial SPI port.
