Overview
The LTC2268CUJ-12 is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2268-12 series, which includes 2-channel, simultaneous sampling ADCs designed for digitizing high-frequency, wide dynamic range signals. It is particularly suited for demanding communications applications, such as cellular base stations, software-defined radios, and other high-speed data acquisition systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits | |
| Number of Channels | 2 | |
| Sampling Rate | 125 MS/s | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Digital Supply Voltage | 1.7V to 1.9V | V |
| Signal to Noise and Distortion Ratio (SINAD) | 70.6 dB | dB |
| Spurious Free Dynamic Range (SFDR) | 88 dB | dB |
| Integral Nonlinearity (INL) | ±0.3 LSB | LSB |
| Differential Nonlinearity (DNL) | ±0.1 LSB | LSB |
| Power Dissipation | 292 mW | mW |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 40-Pin QFN (6mm x 6mm x 0.75mm w/ EP) | |
| Data Interface | Serial LVDS |
Key Features
- Simultaneous sampling of two channels
- Low power consumption: 292 mW total, 146 mW per channel
- Single 1.8V supply voltage
- Serial LVDS outputs: 1 or 2 bits per channel
- Selectable input ranges: 1V P-P to 2V P-P
- 800 MHz full power bandwidth sample-and-hold (S/H)
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin compatible with 14-bit versions
- Ultralow jitter of 0.15 ps RMS
- No missing codes over temperature
- Internal clock duty cycle stabilizer for high performance at full speed
Applications
- Cellular base stations
- Software-defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
- Demanding industrial or automotive applications
Q & A
- What is the resolution of the LTC2268CUJ-12 ADC?
The LTC2268CUJ-12 has a resolution of 12 bits.
- How many channels does the LTC2268CUJ-12 support?
The LTC2268CUJ-12 supports 2 channels with simultaneous sampling.
- What is the sampling rate of the LTC2268CUJ-12?
The sampling rate of the LTC2268CUJ-12 is 125 MS/s.
- What is the analog supply voltage range for the LTC2268CUJ-12?
The analog supply voltage range is 1.7V to 1.9V.
- What is the SINAD of the LTC2268CUJ-12?
The Signal to Noise and Distortion Ratio (SINAD) is 70.6 dB.
- What is the SFDR of the LTC2268CUJ-12?
The Spurious Free Dynamic Range (SFDR) is 88 dB.
- What is the power dissipation of the LTC2268CUJ-12?
The total power dissipation is 292 mW, with 146 mW per channel.
- What is the operating temperature range of the LTC2268CUJ-12?
The operating temperature range is -40°C to 85°C.
- What type of data interface does the LTC2268CUJ-12 use?
The LTC2268CUJ-12 uses a serial LVDS data interface.
- Does the LTC2268CUJ-12 have power management features?
Yes, it includes shutdown and nap modes for power management.
