Overview
The LTC2171IUKG-14 is a 14-bit, 4-channel, simultaneous sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to digitize high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features an ultralow jitter of 0.15ps RMS, enabling excellent noise performance even when undersampling IF frequencies. The ADC offers high AC performance with a signal-to-noise ratio (SNR) of 73.7dB and a spurious free dynamic range (SFDR) of 90dB.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 14 | |
| Number of Channels | 4 | |
| Sampling Rate | 40 Msps | |
| Signal-to-Noise Ratio (SNR) | 73.7 dB | |
| Spurious Free Dynamic Range (SFDR) | 90 dB | |
| Jitter | 0.15 ps RMS | |
| Analog Supply Voltage (VDD) | 1.7 - 1.9 V | |
| Output Supply Voltage (OVDD) | 1.7 - 1.9 V | |
| Analog Supply Current (IVDD) | 112 mA (typ) | |
| Digital Supply Current (IOVDD) | 1.75 - 3.5 mA (typ) | |
| Operating Temperature | -40°C to 85°C | |
| Package | 52-WFQFN Exposed Pad | |
| Data Interface | Serial LVDS |
Key Features
- Simultaneous sampling of all four channels
- Low power consumption: 311mW total, 78mW per channel (typ)
- Single 1.8V supply voltage
- Serial LVDS outputs with optional internal termination and adjustable output levels
- Selectable input ranges: 1VP-P to 2VP-P
- 800MHz 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 LTC2171IUKG-14 ADC?
The LTC2171IUKG-14 has a resolution of 14 bits.
- How many channels does the LTC2171IUKG-14 support?
The LTC2171IUKG-14 supports 4 simultaneous sampling channels.
- What is the sampling rate of the LTC2171IUKG-14?
The sampling rate of the LTC2171IUKG-14 is 40 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2171IUKG-14?
The SNR of the LTC2171IUKG-14 is 73.7 dB.
- What is the spurious free dynamic range (SFDR) of the LTC2171IUKG-14?
The SFDR of the LTC2171IUKG-14 is 90 dB.
- What is the jitter performance of the LTC2171IUKG-14?
The LTC2171IUKG-14 has an ultralow jitter of 0.15 ps RMS.
- What are the power supply requirements for the LTC2171IUKG-14?
The LTC2171IUKG-14 operates on a single 1.8V supply voltage for both analog and digital supplies.
- What is the operating temperature range of the LTC2171IUKG-14?
The operating temperature range is -40°C to 85°C.
- What type of data interface does the LTC2171IUKG-14 use?
The LTC2171IUKG-14 uses serial LVDS outputs.
- What are some typical applications of the LTC2171IUKG-14?
Typical applications include communications, cellular base stations, software defined radios, portable medical imaging, multichannel data acquisition, and nondestructive testing.
