Overview
The LTC2171CUKG-12 is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the LTC2171 series, which includes 4-channel, simultaneous sampling ADCs designed for digitizing high frequency, wide dynamic range signals. It is particularly suited for demanding communications applications due to its excellent AC performance, including a signal-to-noise ratio (SNR) of 71dB and a spurious free dynamic range (SFDR) of 90dB.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Sampling Rate | 40 Msps | samples per second |
| Analog Supply Voltage | 1.7 - 1.9 | V |
| Output Supply Voltage | 1.7 - 1.9 | V |
| Power Dissipation (Total) | 306 mW (1-lane mode), 198 mW (1-lane mode), 160 mW (2-lane mode) | mW |
| Power Dissipation per Channel | 77 mW, 50 mW, 40 mW | mW |
| Integral Linearity Error (INL) | ±0.3 LSB | LSB |
| Differential Linearity Error (DNL) | ±0.1 LSB | LSB |
| Operating Temperature | 0°C to 70°C | °C |
| Package | 52-QFN (7mm × 8mm) | |
| Input Type | Differential | |
| Data Interface | Serial LVDS |
Key Features
- 4-channel simultaneous sampling ADC
- 71dB SNR and 90dB SFDR for excellent AC performance
- Ultralow jitter of 0.15ps RMS, allowing undersampling of IF frequencies
- Low power consumption: 306mW/198mW/160mW total, 77mW/50mW/40mW per channel
- Single 1.8V supply voltage
- Serial LVDS outputs: one or two bits per channel
- Selectable input ranges: 1V to 2V peak-to-peak
- 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
The LTC2171CUKG-12 is ideal for demanding communications applications, including:
- High-frequency signal processing
- Wide dynamic range signal digitization
- Communications systems requiring high SNR and SFDR
- IF frequency undersampling with low jitter
- Low-power, high-performance ADC applications
Q & A
- What is the resolution of the LTC2171CUKG-12 ADC?
The LTC2171CUKG-12 has a resolution of 12 bits.
- What is the sampling rate of the LTC2171CUKG-12?
The sampling rate of the LTC2171CUKG-12 is 40 Msps.
- What is the power consumption of the LTC2171CUKG-12?
The total power consumption is 306 mW, 198 mW, or 160 mW depending on the mode, with per-channel consumption of 77 mW, 50 mW, or 40 mW.
- What is the operating temperature range of the LTC2171CUKG-12?
The operating temperature range is 0°C to 70°C.
- What type of data interface does the LTC2171CUKG-12 use?
The LTC2171CUKG-12 uses a serial LVDS data interface.
- What are the input ranges for the LTC2171CUKG-12?
The input ranges are selectable from 1V to 2V peak-to-peak.
- Does the LTC2171CUKG-12 support differential or single-ended inputs?
The LTC2171CUKG-12 supports both differential and single-ended inputs.
- What is the jitter performance of the LTC2171CUKG-12?
The LTC2171CUKG-12 has an ultralow jitter of 0.15ps RMS.
- What power management modes are available on the LTC2171CUKG-12?
The LTC2171CUKG-12 has shutdown and nap modes for power management.
- Is the LTC2171CUKG-12 RoHS compliant?
Yes, the LTC2171CUKG-12 is lead-free and RoHS compliant.
