Overview
The LTC2267IUJ-14 is a 14-bit, dual-channel, simultaneous sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to digitize high-frequency, wide dynamic range signals, making it ideal for demanding communications and other high-performance applications. The ADC features low power consumption, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR), along with ultralow jitter, which allows for excellent noise performance even when undersampling IF frequencies.
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) | |
| Analog Supply Voltage (VDD) | 1.7 to 1.9 V | |
| Digital Supply Voltage (OVDD) | 1.7 to 1.9 V | |
| Analog Supply Current (IVDD) | 131 mA (typ) | |
| Digital Supply Current (IOVDD) | 20 to 34 mA (typ) | |
| Power Dissipation | 243 mW (typ) | |
| Operating Temperature Range | –40°C to 85°C | |
| Package | 40-Pin (6mm × 6mm) QFN |
Key Features
- 2-channel, simultaneous sampling 14-bit ADC
- High SNR and SFDR for excellent AC performance
- Ultralow jitter of 0.15 ps RMS for undersampling IF frequencies
- Low power consumption: 243 mW total, 121 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 S/H
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin compatible 14-bit and 12-bit versions
Applications
- Communications: cellular base stations, software-defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2267IUJ-14 ADC?
The resolution of the LTC2267IUJ-14 is 14 bits.
- What is the sampling rate of the LTC2267IUJ-14?
The sampling rate of the LTC2267IUJ-14 is 105 Msps.
- What is the SNR of the LTC2267IUJ-14?
The SNR of the LTC2267IUJ-14 is 73.1 dB.
- What is the SFDR of the LTC2267IUJ-14?
The SFDR of the LTC2267IUJ-14 is 88 dB.
- What is the jitter performance of the LTC2267IUJ-14?
The jitter performance of the LTC2267IUJ-14 is 0.15 ps RMS.
- What are the supply voltage requirements for the LTC2267IUJ-14?
The LTC2267IUJ-14 requires a single 1.8V supply voltage for both analog and digital supplies.
- What are the typical power consumption values for the LTC2267IUJ-14?
The typical power consumption for the LTC2267IUJ-14 is 243 mW total, with 121 mW per channel.
- What are the operating temperature ranges for the LTC2267IUJ-14?
The operating temperature range for the LTC2267IUJ-14 is –40°C to 85°C.
- What package type is the LTC2267IUJ-14 available in?
The LTC2267IUJ-14 is available in a 40-Pin (6mm × 6mm) QFN package.
- What are some common applications for the LTC2267IUJ-14?
Common applications include communications (cellular base stations, software-defined radios), portable medical imaging, multichannel data acquisition, and nondestructive testing.
