Overview
The LTC2181IUP is a high-performance, 16-bit, dual-channel analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is part of the LTC2182/LTC2181/LTC2180 family and is designed for digitizing high-frequency, wide dynamic range signals. It is particularly suited for demanding communications applications, offering excellent AC performance and low power consumption.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 40 MSPS | |
| Number of Inputs | 2 | |
| Input Type | Differential | |
| Data Interface | Parallel | |
| Signal-to-Noise Ratio (SNR) | 77 dB | |
| Spurious Free Dynamic Range (SFDR) | 90 dB | |
| Power Consumption (Total) | 115 mW | |
| Power Consumption (Per Channel) | 58 mW | |
| Supply Voltage | 1.8 V | |
| Output Formats | CMOS, DDR CMOS, DDR LVDS | |
| Input Range | 1 Vpp to 2 Vpp | |
| Full Power Bandwidth | 550 MHz | |
| Package Type | 64-Pin QFN EP |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 115 mW total, 58 mW per channel
- Single 1.8 V supply
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Ultralow jitter of 0.07 psRMS
- No missing codes over temperature
- DC specs include ±2 LSB INL (typ), ±0.5 LSB DNL (typ)
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 LTC2181IUP?
The sampling rate of the LTC2181IUP is 40 MSPS.
- How many input channels does the LTC2181IUP have?
The LTC2181IUP has two input channels.
- What is the signal-to-noise ratio (SNR) of the LTC2181IUP?
The SNR of the LTC2181IUP is 77 dB.
- What are the power consumption specifications of the LTC2181IUP?
The total power consumption is 115 mW, with 58 mW per channel.
- What are the output formats available for the LTC2181IUP?
The output formats include CMOS, DDR CMOS, and DDR LVDS.
- What is the full power bandwidth of the LTC2181IUP?
The full power bandwidth is 550 MHz.
- Does the LTC2181IUP support differential or single-ended inputs?
The LTC2181IUP supports both differential and single-ended inputs.
- What package type is the LTC2181IUP available in?
The LTC2181IUP is available in a 64-Pin QFN EP package.
- Does the LTC2181IUP have any power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the purpose of the clock duty cycle stabilizer in the LTC2181IUP?
The clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
