Overview
The LTC2271CUKG#PBF is a high-performance, 2-channel simultaneous sampling 16-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This device is optimized for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features excellent AC performance, including a signal-to-noise ratio (SNR) of 84.1dB and a spurious free dynamic range (SFDR) of 99dB. The LTC2271 is known for its low power consumption and robust signal integrity, making it a reliable choice for various high-speed data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 20 Msps |
| Signal-to-Noise Ratio (SNR) | 84.1 dB |
| Spurious Free Dynamic Range (SFDR) | 99 dB |
| Input Referred Noise | 46 μV RMS |
| Integral Nonlinearity (INL) | ±1 LSB (typ) |
| Differential Nonlinearity (DNL) | ±0.2 LSB (typ) |
| Power Consumption | 185 mW total, 92 mW per channel |
| Supply Voltage | Single 1.8V |
| Input Ranges | Selectable: 1V P-P to 2.1V P-P |
| Full-Power Bandwidth S/H | 200 MHz |
| Package | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) |
Key Features
- 2-channel simultaneous sampling ADC
- Serial LVDS outputs: 1, 2, or 4 bits per channel
- Low power consumption: 185 mW total, 92 mW per channel
- Single 1.8V supply
- Selectable input ranges: 1V P-P to 2.1V P-P
- 200 MHz full-power bandwidth S/H
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin compatible with LTC2190
- Optional internal termination and adjustable output levels for LVDS drivers
Applications
The LTC2271 is particularly suited for demanding communications applications, including high-speed data acquisition systems, wireless communication systems, and other applications requiring high-frequency signal digitization. Its excellent AC performance and low power consumption make it an ideal choice for systems that require precise and reliable signal conversion.
Q & A
- What is the resolution of the LTC2271 ADC?
The LTC2271 has a resolution of 16 bits. - What is the sampling rate of the LTC2271?
The sampling rate of the LTC2271 is 20 Msps. - What is the signal-to-noise ratio (SNR) of the LTC2271?
The SNR of the LTC2271 is 84.1 dB. - What is the spurious free dynamic range (SFDR) of the LTC2271?
The SFDR of the LTC2271 is 99 dB. - What is the power consumption of the LTC2271?
The total power consumption is 185 mW, with 92 mW per channel. - What is the supply voltage for the LTC2271?
The LTC2271 operates on a single 1.8V supply. - What are the selectable input ranges for the LTC2271?
The input ranges are selectable from 1V P-P to 2.1V P-P. - What is the full-power bandwidth of the sample-and-hold (S/H) circuit?
The full-power bandwidth of the S/H circuit is 200 MHz. - Does the LTC2271 have power management features?
Yes, the LTC2271 includes shutdown and nap modes for power management. - Is the LTC2271 pin compatible with other models?
Yes, the LTC2271 is pin compatible with the LTC2190.
