Overview
The LTC2145CUP-12 is a 12-bit, 125Msps low power dual analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high frequency, wide dynamic range signals and is particularly suited for demanding communications applications. It features two-channel simultaneous sampling, making it ideal for applications requiring precise and synchronized data acquisition.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 125 Msps |
| Signal-to-Noise Ratio (SNR) | 70.6 dB |
| Spurious Free Dynamic Range (SFDR) | 89 dB |
| Power Consumption | 183 mW (total), 92 mW per channel |
| Supply Voltage | Single 1.8 V |
| Output Types | CMOS, DDR CMOS, or DDR LVDS |
| Input Ranges | 1 V P-P to 2 V P-P |
| Full Power Bandwidth S/H | 750 MHz |
| Package | 64-Pin QFN (9mm x 9mm x 0.75mm) |
| Operating Temperature Range | 0°C to 70°C (commercial), -40°C to 85°C (industrial) |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 183 mW total, 92 mW per channel
- Single 1.8 V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1 V P-P to 2 V P-P
- 750 MHz full power bandwidth sample-and-hold (S/H)
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Ultralow jitter of 0.08 ps RMS
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 LTC2145CUP-12?
The LTC2145CUP-12 has a resolution of 12 bits and a sampling rate of 125 Msps.
- What are the key applications for the LTC2145CUP-12?
The key applications include communications, cellular base stations, software defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
- What are the output types available for the LTC2145CUP-12?
The output types available are CMOS, DDR CMOS, or DDR LVDS.
- What is the power consumption of the LTC2145CUP-12?
The total power consumption is 183 mW, with 92 mW per channel.
- What is the full power bandwidth of the sample-and-hold (S/H) for the LTC2145CUP-12?
The full power bandwidth of the S/H is 750 MHz.
- Does the LTC2145CUP-12 have any power management features?
- What is the operating temperature range for the LTC2145CUP-12?
The operating temperature range is 0°C to 70°C for commercial grade and -40°C to 85°C for industrial grade.
- What is the package type and size of the LTC2145CUP-12?
The package is a 64-Pin QFN (9mm x 9mm x 0.75mm).
- Does the LTC2145CUP-12 support SPI configuration?
- What is the jitter performance of the LTC2145CUP-12?
The LTC2145CUP-12 has an ultralow jitter of 0.08 ps RMS.
