Overview
The LTC2144CUP-12 is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2144 family, which is designed for digitizing high-frequency, wide dynamic range signals. It features two channels that sample simultaneously, making it ideal for demanding applications such as communications, cellular base stations, and software-defined radios.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12 | Bits | |||
| Sampling Frequency | 105 | Msps | |||
| Signal-to-Noise Ratio (SNR) | 70.6 | dB | |||
| Spurious Free Dynamic Range (SFDR) | 89 | dB | |||
| Integral Nonlinearity (INL) | -0.3 | 0.3 | LSB | ||
| Differential Nonlinearity (DNL) | -0.1 | 0.1 | LSB | ||
| Power Consumption (Total) | 109 | 144 | 183 | mW | |
| Power Consumption (Per Channel) | 55 | 72 | 92 | mW | |
| Supply Voltage | 1.8 | V | |||
| Input Range | 1V P-P | 2V P-P | |||
| Output Type | CMOS, DDR CMOS, DDR LVDS |
Key Features
- Simultaneous sampling of two channels
- High-speed sampling rate of up to 105 Msps
- Low power consumption: 109mW to 183mW total, and 55mW to 92mW per channel
- Single 1.8V supply voltage
- CMOS, DDR CMOS, or DDR LVDS output options
- Selectable input ranges: 1V P-P to 2V P-P
- 750MHz full power bandwidth S/H
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power savings
- Serial SPI port for configuration
- 64-pin QFN package (9mm x 9mm x 0.75mm with EP)
Applications
- Communications systems
- Cellular base stations
- Software-defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2144CUP-12 ADC?
The LTC2144CUP-12 has a resolution of 12 bits.
- What is the maximum sampling frequency of the LTC2144CUP-12?
The maximum sampling frequency is 105 Msps.
- What are the power consumption options for the LTC2144CUP-12?
The total power consumption ranges from 109mW to 183mW, and per channel from 55mW to 92mW.
- What types of output interfaces does the LTC2144CUP-12 support?
The device supports CMOS, DDR CMOS, and DDR LVDS output interfaces.
- What are the selectable input ranges for the LTC2144CUP-12?
The input ranges are selectable from 1V P-P to 2V P-P.
- Does the LTC2144CUP-12 have power-saving modes?
- What is the package type and size of the LTC2144CUP-12?
The device is packaged in a 64-pin QFN package (9mm x 9mm x 0.75mm with EP).
- What are some typical applications of the LTC2144CUP-12?
Typical applications include communications systems, cellular base stations, software-defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
- Does the LTC2144CUP-12 support SPI configuration?
- What is the SNR and SFDR of the LTC2144CUP-12?
The SNR is 70.6 dB, and the SFDR is 89 dB.
