Overview
The LTC2261IUJ-12 is a high-performance, 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This ADC is part of the LTC2261 series, which is optimized for digitizing high-frequency, wide dynamic range signals. It features a pipelined architecture, ensuring accurate and reliable data capture. The device is particularly suited for demanding communications applications, such as cellular base stations, software-defined radios, and portable medical imaging.
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 |
| Operating Temperature | -40°C to 85°C | °C |
| Signal-to-Noise Ratio (SNR) | 70.8 dB | dB |
| Spurious Free Dynamic Range (SFDR) | 85 dB | dB |
| Input Range | 1 Vpp to 2 Vpp | Vpp |
| Full-Power Bandwidth | 800 MHz | MHz |
| Package Type | 40-Pin QFN (6mm x 6mm) | |
| Output Type | CMOS, DDR CMOS, or DDR LVDS | |
| Power Consumption | 124 mW / 103 mW / 87 mW | mW |
Key Features
- 12-bit resolution with a sampling rate of 125 MS/s
- Ultralow power consumption: 124 mW / 103 mW / 87 mW
- Single 1.8V supply voltage
- CMOS, DDR CMOS, or DDR LVDS output options
- Selectable input ranges: 1 Vpp to 2 Vpp
- 800 MHz full-power bandwidth sample-and-hold circuit
- 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 and 12-bit versions
Applications
- Communications: cellular base stations, software-defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the resolution and sampling rate of the LTC2261IUJ-12?
The LTC2261IUJ-12 has a 12-bit resolution and a sampling rate of 125 MS/s.
- What are the power consumption options for this ADC?
The power consumption options are 124 mW, 103 mW, and 87 mW.
- What types of output are available for the LTC2261IUJ-12?
The output types include CMOS, DDR CMOS, and DDR LVDS.
- What is the full-power bandwidth of the sample-and-hold circuit?
The full-power bandwidth is 800 MHz.
- Does the LTC2261IUJ-12 support differential or single-ended inputs?
Yes, it supports both differential and single-ended inputs.
- What are the operating temperature ranges for this ADC?
The operating temperature range is -40°C to 85°C.
- Is there an optional clock duty cycle stabilizer?
Yes, there is an optional clock duty cycle stabilizer.
- What package type is used for the LTC2261IUJ-12?
The package type is a 40-Pin QFN (6mm x 6mm).
- Does the LTC2261IUJ-12 have power management features?
Yes, it includes shutdown and nap modes for power management.
- How is the device configured?
The device is configured via a serial SPI port.
