Overview
The LTC2258IUJ-14, produced by Analog Devices Inc., is a high-performance 14-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This ADC is part of the LTC2258-14 series, which includes models with varying sampling rates and output configurations. It 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 | 14 | Bits |
| Sampling Rate | 65 | MSPS |
| Signal-to-Noise Ratio (SNR) | 74 | dB |
| Spurious Free Dynamic Range (SFDR) | 88 | dB |
| Power Consumption | 81 | mW |
| Supply Voltage | 1.8 | V |
| Input Range | 1V P-P to 2V P-P | |
| Full-Power Bandwidth S/H | 800 | MHz |
| Output Modes | CMOS, DDR CMOS, DDR LVDS | |
| Package Type | 40-Pin QFN (6mm x 6mm x 0.75mm) | |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Ultralow jitter of 0.17ps RMS, allowing for undersampling of IF frequencies with excellent noise performance.
- Optional data output randomizer and clock duty cycle stabilizer for high performance across a wide range of clock duty cycles.
- Shutdown and nap modes for power management.
- Serial SPI port for configuration.
- Pin-compatible 14-bit and 12-bit versions.
- Low input capacitance for quick response to changes.
- External and internal reference options.
- Support for differential or single-ended inputs with various signal types (sine wave, PECL, LVDS, TTL, CMOS).
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 LTC2258IUJ-14 ADC?
The LTC2258IUJ-14 has a resolution of 14 bits.
- What is the sampling rate of the LTC2258IUJ-14?
The sampling rate is 65 MSPS.
- What are the output modes available for the LTC2258IUJ-14?
The output modes include full rate CMOS, double data rate CMOS, and double data rate LVDS.
- What is the power consumption of the LTC2258IUJ-14?
The power consumption is typically 81 mW.
- What is the operating temperature range of the LTC2258IUJ-14?
The operating temperature range is from -40°C to 85°C.
- Does the LTC2258IUJ-14 support differential or single-ended inputs?
Yes, it supports both differential and single-ended inputs with various signal types.
- What are the package dimensions of the LTC2258IUJ-14?
The package is a 40-Pin QFN with dimensions of 6mm x 6mm x 0.75mm.
- What are some of the key applications for the LTC2258IUJ-14?
Key applications include communications, cellular base stations, software-defined radios, portable medical imaging, and multi-channel data acquisition.
- Does the LTC2258IUJ-14 have power management features?
Yes, it includes shutdown and nap modes for power management.
- How can the LTC2258IUJ-14 be configured?
It can be configured via a serial SPI port.
