Overview
The LTC2145IUP-12 is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This dual-channel ADC is designed for simultaneous sampling and is optimized for digitizing high-frequency, wide dynamic range signals. It is particularly suited for demanding applications in communications, medical imaging, and multi-channel data acquisition.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate | 125 Msps |
| Number of Converters | 2 |
| Interface | Parallel, SPI, Serial |
| Integral Nonlinearity (INL) | ±1 LSB (typ) |
| Differential Nonlinearity (DNL) | ±0.3 LSB (typ) |
| Signal-to-Noise Ratio (SNR) | 73.1 dB |
| Spurious Free Dynamic Range (SFDR) | 90 dB |
| Power Consumption | 189mW (total), 95mW per channel |
| Supply Voltage | 1.8 V |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 189mW total, 95mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- 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 management
- Serial SPI port for configuration
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the sampling rate of the LTC2145IUP-12?
The sampling rate of the LTC2145IUP-12 is 125 Msps.
- How many channels does the LTC2145IUP-12 have?
The LTC2145IUP-12 is a dual-channel ADC.
- What is the signal-to-noise ratio (SNR) of the LTC2145IUP-12?
The SNR of the LTC2145IUP-12 is 73.1 dB.
- What are the available output interfaces for the LTC2145IUP-12?
The available output interfaces are CMOS, DDR CMOS, and DDR LVDS.
- Does the LTC2145IUP-12 support power management features?
Yes, it supports shutdown and nap modes for power management.
- What is the package type of the LTC2145IUP-12?
The package type is a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP).
- Can the input ranges be selected on the LTC2145IUP-12?
Yes, the input ranges can be selected from 1V P-P to 2V P-P.
- Is there an optional clock duty cycle stabilizer available?
Yes, an optional clock duty cycle stabilizer is available.
- What is the typical power consumption per channel?
The typical power consumption per channel is 95mW.
- Does the LTC2145IUP-12 have a serial configuration port?
Yes, it has a serial SPI port for configuration.
