Overview
The LTC2241-12, produced by Analog Devices Inc., is a high-performance 12-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This ADC operates at a sampling rate of 210 Msps, making it ideal for demanding communications applications. It features excellent AC performance, including a signal-to-noise ratio (SNR) of 65.5 dB and a spurious free dynamic range (SFDR) of 78 dB. The ultralow jitter of 95 fs RMS enables IF undersampling with superior noise performance.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 210 Msps |
| SNR (dBFS) | 65.5 dB |
| SFDR (dB) | 78 dB |
| Jitter (RMS) | 95 fs |
| Integral Nonlinearity (INL) | ±0.7 LSB (typ) |
| Differential Nonlinearity (DNL) | ±0.4 LSB (typ) |
| Analog Input Range | ±1 V (largest valid range) |
| Digital Output Modes | Differential LVDS, Single-ended CMOS |
| CMOS Output Swing | 0.5 V to 2.625 V |
Key Features
- High-speed sampling at 210 Msps
- Excellent AC performance with 65.5 dB SNR and 78 dB SFDR
- Ultralow jitter of 95 fs RMS for IF undersampling
- High accuracy with ±0.7 LSB INL and ±0.4 LSB DNL
- No missing codes over temperature
- Flexible digital output options: differential LVDS or single-ended CMOS
- CMOS output swing adjustable from 0.5 V to 2.625 V
- Demultiplexed CMOS output options: single bus at full data rate or two demultiplexed buses at half data rate
Applications
The LTC2241-12 is particularly suited for demanding communications applications, including:
- High-frequency signal processing
- IF undersampling in communication systems
- Radar and imaging systems
- High-speed data acquisition systems
- Wireless communication infrastructure
Q & A
- What is the sampling rate of the LTC2241-12 ADC?
The LTC2241-12 ADC operates at a sampling rate of 210 Msps.
- What are the key AC performance metrics of the LTC2241-12?
The key AC performance metrics include a signal-to-noise ratio (SNR) of 65.5 dB and a spurious free dynamic range (SFDR) of 78 dB.
- What is the jitter performance of the LTC2241-12?
The LTC2241-12 features an ultralow jitter of 95 fs RMS.
- What are the available digital output modes for the LTC2241-12?
The digital outputs can be either differential LVDS or single-ended CMOS.
- Can the CMOS output swing be adjusted?
- What are the demultiplexed CMOS output options?
The CMOS outputs can be configured as a single bus running at the full data rate or two demultiplexed buses running at half data rate with either interleaved or simultaneous update.
- What is the largest valid analog input range for the LTC2241-12?
The largest valid analog input range is ±1 V.
- Does the LTC2241-12 have any missing codes over temperature?
No, the LTC2241-12 has no missing codes over temperature.
- What are some typical applications for the LTC2241-12?
Typical applications include high-frequency signal processing, IF undersampling in communication systems, radar and imaging systems, and high-speed data acquisition systems.
- How should the exposed pad on the bottom of the package be handled?
The exposed pad on the bottom of the package needs to be soldered to ground.
