Overview
The LTC2261CUJ-12 is a high-speed, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications and other high-performance applications. The ADC features a pipelined architecture and operates at a sampling rate of 125 MS/s. It is powered by a single 1.8V supply and is available in a 40-pin QFN package, measuring 6mm x 6mm.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits | |
| Sampling Rate | 125 MS/s | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Digital Supply Voltage | 1.7V to 1.9V | V |
| Input Type | Differential/Single-Ended | |
| Input Range | 1V P-P to 2V P-P | V |
| SNR | 70.8 dB | dB |
| SFDR | 85 dB | dB |
| Jitter | 0.17 ps RMS | ps |
| Power Consumption | 124 mW (typical) | mW |
| Operating Temperature | -40°C to 85°C | °C |
| Package | 40-Pin QFN (6mm x 6mm) |
Key Features
- High-speed 12-bit ADC with a sampling rate of 125 MS/s
- Pipelined architecture for high-frequency signal digitization
- Single 1.8V supply voltage
- Differential or single-ended analog input
- Selectable input ranges: 1V P-P to 2V P-P
- CMOS, DDR CMOS, or DDR LVDS digital outputs
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin-compatible with 14-bit versions
Applications
- Communications systems
- Cellular base stations
- Software-defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2261CUJ-12 ADC?
The LTC2261CUJ-12 has a resolution of 12 bits.
- What is the sampling rate of the LTC2261CUJ-12?
The sampling rate is 125 MS/s.
- What is the operating supply voltage for the LTC2261CUJ-12?
The operating supply voltage is 1.7V to 1.9V.
- What types of analog inputs does the LTC2261CUJ-12 support?
The LTC2261CUJ-12 supports both differential and single-ended analog inputs.
- What are the key performance metrics of the LTC2261CUJ-12 in terms of SNR and SFDR?
The LTC2261CUJ-12 has an SNR of 70.8 dB and an SFDR of 85 dB.
- What is the typical power consumption of the LTC2261CUJ-12?
The typical power consumption is 124 mW.
- What are the available digital output formats for the LTC2261CUJ-12?
The digital outputs can be CMOS, DDR CMOS, or DDR LVDS.
- Does the LTC2261CUJ-12 have power management features?
- How is the LTC2261CUJ-12 configured?
- What is the package type and size of the LTC2261CUJ-12?
