Overview
The LTC2267CUJ-14 is a 2-channel, simultaneous sampling 14-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This component is optimized for digitizing high frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features excellent AC performance, including a signal-to-noise ratio (SNR) of 73.1dB and a spurious free dynamic range (SFDR) of 88dB. The ultralow jitter of 0.15ps RMS enables undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 | Bits |
| Sampling Rate | 105 Msps | |
| SNR | 73.1 dB | |
| SFDR | 88 dB | |
| Jitter | 0.15 ps RMS | |
| Integral Linearity Error (INL) | ±1 LSB (typ) | |
| Differential Linearity Error (DNL) | ±0.3 LSB (typ) | |
| Transition Noise | 1.2 LSB RMS | |
| Supply Voltage | 1.8 V | |
| Power Consumption (Total) | 299 mW (max) | |
| Power Consumption (Per Channel) | 150 mW (max) | |
| Operating Temperature Range | –40°C to 85°C | |
| Package | 40-Lead QFN (6mm x 6mm x 0.75mm) |
Key Features
- 2-channel simultaneous sampling ADC
- 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 and 12-bit versions
- Internal clock duty cycle stabilizer for high performance at full speed
- Optional internal termination and adjustable output levels for clean signal integrity
Applications
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2267CUJ-14 ADC?
The LTC2267CUJ-14 has a resolution of 14 bits.
- What is the sampling rate of the LTC2267CUJ-14?
The sampling rate of the LTC2267CUJ-14 is 105 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2267CUJ-14?
The SNR of the LTC2267CUJ-14 is 73.1 dB.
- What is the spurious free dynamic range (SFDR) of the LTC2267CUJ-14?
The SFDR of the LTC2267CUJ-14 is 88 dB.
- What is the jitter performance of the LTC2267CUJ-14?
The LTC2267CUJ-14 has an ultralow jitter of 0.15 ps RMS.
- What are the power consumption modes of the LTC2267CUJ-14?
The LTC2267CUJ-14 has total power consumption of up to 299 mW and per channel consumption of up to 150 mW. It also features shutdown and nap modes for power management.
- What is the operating temperature range of the LTC2267CUJ-14?
The operating temperature range of the LTC2267CUJ-14 is –40°C to 85°C.
- What type of output does the LTC2267CUJ-14 use?
The LTC2267CUJ-14 uses serial LVDS outputs, which can be configured to output 1 or 2 bits per channel.
- What are some typical applications of the LTC2267CUJ-14?
The LTC2267CUJ-14 is typically used in cellular base stations, software defined radios, portable medical imaging, multichannel data acquisition, and nondestructive testing.
- What package type does the LTC2267CUJ-14 come in?
The LTC2267CUJ-14 comes in a 40-Lead QFN package (6mm x 6mm x 0.75mm).
