Overview
The LTC2141IUP-12 is a 12-bit, 40Msps low power dual analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for digitizing high frequency, wide dynamic range signals and is particularly suited for demanding communications applications. It features two channels that sample simultaneously, making it ideal for applications requiring precise and synchronized data acquisition.
The ADC operates on a single 1.8V supply and offers various output modes including full rate CMOS, double data rate CMOS, and double data rate LVDS. It also includes features such as selectable input ranges, a 750MHz full power bandwidth sample-and-hold amplifier, and an optional clock duty cycle stabilizer to ensure high performance across a wide range of clock duty cycles.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Number of Bits | 12 | |
| Sampling Frequency | 40 | MSPS |
| Signal-to-Noise Ratio (SNR) | 70.8 | dB |
| Spurious Free Dynamic Range (SFDR) | 89 | dB |
| Analog Supply Voltage (VDD) | 1.7 to 1.9 | V |
| Digital Supply Voltage (OVDD) | 1.1 to 1.9 | V |
| Analog Supply Current (IVDD) | 35.9 to 41 | mA |
| Digital Supply Current (IOVDD) | 2.4 to 3.8 | mA |
| Power Dissipation (PDISS) | 64.6 to 74 | mW |
| Full Power Bandwidth S/H | 750 | MHz |
| Input Range | 1Vpp to 2Vpp | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | 64-Pin QFN (9mm × 9mm) |
Key Features
- Two-channel simultaneous sampling ADC
- 73.2dB SNR and 90dB SFDR (for 14-bit models, but 70.8dB SNR and 89dB SFDR for the 12-bit model)
- Low power consumption: 65mW total, 33mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1Vpp to 2Vpp
- 750MHz full power bandwidth sample-and-hold amplifier
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- 64-Pin QFN package (9mm × 9mm)
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the sampling frequency of the LTC2141IUP-12?
The sampling frequency of the LTC2141IUP-12 is 40 MSPS.
- What is the signal-to-noise ratio (SNR) of the LTC2141IUP-12?
The SNR of the LTC2141IUP-12 is 70.8 dB.
- What are the available output modes for the LTC2141IUP-12?
The available output modes are full rate CMOS, double data rate CMOS, and double data rate LVDS.
- What is the power consumption of the LTC2141IUP-12?
The total power consumption is approximately 65 mW, with 33 mW per channel.
- What is the operating temperature range of the LTC2141IUP-12?
The operating temperature range is -40°C to 85°C.
- What package type does the LTC2141IUP-12 come in?
The LTC2141IUP-12 comes in a 64-Pin QFN package (9mm × 9mm).
- Does the LTC2141IUP-12 support simultaneous sampling?
- What are the selectable input ranges for the LTC2141IUP-12?
The selectable input ranges are from 1Vpp to 2Vpp.
- Does the LTC2141IUP-12 have power management features?
- How is the LTC2141IUP-12 configured?
