Overview
The LTC2282IUP from Analog Devices Inc. is a high-performance, dual 12-bit analog-to-digital converter (ADC) designed to digitize high-frequency, wide dynamic range signals. This ADC operates at a sampling rate of 105 Msps and is ideal for demanding applications in imaging and communications. It features low power consumption and high AC performance, including a signal-to-noise ratio (SNR) of 70.1 dB and a spurious free dynamic range (SFDR) of 85 dB for signals at the Nyquist frequency. The device is powered by a single 3V supply and has separate output supply options to drive logic levels from 0.5V to 3.6V.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 2 | |
| Sampling Rate | 105 Msps | |
| Analog Supply Voltage | 2.85V to 3.4V | V |
| Integral Nonlinearity (INL) | ±0.4 LSB | |
| Differential Nonlinearity (DNL) | ±0.2 LSB | |
| Signal to Noise and Distortion Ratio (SINAD) | 70.1 dB | |
| Spurious Free Dynamic Range (SFDR) | 85 dB | |
| Power Dissipation | 540 mW | |
| Operating Temperature | -40°C to 85°C | |
| Package | 64-QFN (9x9) |
Key Features
- Simultaneous sampling of two channels
- Pipelined architecture for high-speed conversion
- Internal reference with low drift
- Low power consumption with a single 3V supply
- Separate output supply options to drive various logic levels (0.5V to 3.6V)
- Optional clock duty cycle stabilizer for high performance across a wide range of clock duty cycles
- High AC performance with 70.1 dB SNR and 85 dB SFDR at Nyquist frequency
Applications
The LTC2282IUP is suitable for a variety of high-performance applications, including:
- Imaging systems: Such as medical imaging, radar, and other high-frequency imaging applications.
- Communications: Including wireless communication systems, base stations, and other high-speed data acquisition systems.
- Industrial control: For high-speed data acquisition and control in industrial environments.
- Aerospace and defense: For applications requiring high-speed, high-accuracy analog-to-digital conversion.
Q & A
- What is the sampling rate of the LTC2282IUP?
The LTC2282IUP has a sampling rate of 105 Msps. - How many channels does the LTC2282IUP have?
The LTC2282IUP is a dual-channel ADC. - What is the resolution of the LTC2282IUP?
The resolution is 12 bits. - What is the typical power dissipation of the LTC2282IUP?
The typical power dissipation is 540 mW. - What is the operating temperature range of the LTC2282IUP?
The operating temperature range is -40°C to 85°C. - Does the LTC2282IUP have an internal reference?
Yes, it has an internal reference. - What is the package type of the LTC2282IUP?
The package type is 64-QFN (9x9). - Can the LTC2282IUP handle simultaneous sampling of both channels?
Yes, it supports simultaneous sampling of both channels. - What are the typical values for INL and DNL?
The typical values are ±0.4 LSB for INL and ±0.2 LSB for DNL. - What is the SFDR at the Nyquist frequency?
The SFDR at the Nyquist frequency is 85 dB.
