Overview
The LTC2256IUJ-12 is a 12-bit, 25Msps (mega-samples per second) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it suitable for demanding applications in communications and other fields. It operates on a single 1.8V supply and features low power consumption, with options for shutdown and nap modes to further reduce power usage.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sampling Rate | 25 Msps | |
| Signal-to-Noise Ratio (SNR) | 71.1 dB | |
| Spurious Free Dynamic Range (SFDR) | 88 dB | |
| Power Consumption | 34 mW (typical) | |
| Supply Voltage | 1.7V to 1.9V | |
| Input Range | 1V P-P to 2V P-P | |
| Full-Power Bandwidth S/H | 800 MHz | |
| Output Modes | CMOS, DDR CMOS, DDR LVDS | |
| Package | 40-Pin (6mm × 6mm) QFN |
Key Features
- Low power consumption: 34 mW (typical) at 25 Msps
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS digital outputs
- Selectable input ranges: 1V P-P to 2V P-P
- 800 MHz full-power bandwidth sample-and-hold
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for reduced power consumption
- Serial SPI port for configuration
- Pin compatible with 14-bit versions
- Ultralow jitter: 0.17 ps RMS
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the resolution of the LTC2256IUJ-12 ADC?
The LTC2256IUJ-12 is a 12-bit ADC.
- What is the sampling rate of the LTC2256IUJ-12?
The sampling rate is 25 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2256IUJ-12?
The SNR is 71.1 dB.
- What are the available output modes for the LTC2256IUJ-12?
The output modes include CMOS, DDR CMOS, and DDR LVDS.
- What is the power consumption of the LTC2256IUJ-12?
The typical power consumption is 34 mW at 25 Msps.
- Does the LTC2256IUJ-12 have optional features for clock duty cycle stabilization?
- What are the input range options for the LTC2256IUJ-12?
The input ranges are selectable from 1V P-P to 2V P-P.
- What is the full-power bandwidth of the sample-and-hold circuit?
The full-power bandwidth is 800 MHz.
- Does the LTC2256IUJ-12 support shutdown and nap modes?
- What package type is the LTC2256IUJ-12 available in?
The LTC2256IUJ-12 is available in a 40-Pin (6mm × 6mm) QFN package.
