Overview
The LTC2241-12 is a high-performance, 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This component is optimized for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. With a sampling rate of 210 Msps, it offers 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 |
| Signal-to-Noise Ratio (SNR) | 65.5 dB |
| Spurious Free Dynamic Range (SFDR) | 78 dB |
| Full Power Bandwidth S/H | 1.2 GHz |
| Supply Voltage | 2.375V to 2.625V |
| Power Dissipation | 585 mW |
| Output Modes | LVDS, CMOS, or Demultiplexed CMOS |
| Input Ranges | ±0.5V or ±1V |
| Integral Nonlinearity (INL) | ±0.7 LSB (typ) |
| Differential Nonlinearity (DNL) | ±0.4 LSB (typ) |
| Package | 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP) |
| Operating Temperature | 0°C to 70°C |
Key Features
- Ultralow jitter of 95 fs RMS for excellent noise performance in IF undersampling.
- No missing codes over temperature.
- Optional clock duty cycle stabilizer for high performance over a wide range of clock duty cycles.
- Shutdown and nap modes for power management.
- Data ready output clock.
- Pin compatible with other family members (e.g., LTC2242-12, LTC2240-12).
- Separate output power supply allowing CMOS output swing from 0.5V to 2.625V.
- ENC+ and ENC– inputs can be driven differentially or single-ended with various input types (sine wave, PECL, LVDS, TTL, or CMOS).
Applications
- Wireless and Wired Broadband Communication
- Cable Head-End Systems
- Power Amplifier Linearization
- Communications Test Equipment
Q & A
- What is the sampling rate of the LTC2241-12 ADC?
The sampling rate of the LTC2241-12 ADC is 210 Msps.
- What are the key AC performance metrics of the LTC2241-12?
The key AC performance metrics include a SNR of 65.5 dB and an SFDR of 78 dB.
- What is the power dissipation of the LTC2241-12?
The power dissipation is 585 mW.
- What are the available output modes for the LTC2241-12?
The available output modes are LVDS, CMOS, or demultiplexed CMOS.
- Can the input ranges be selected on the LTC2241-12?
- What is the package type and size of the LTC2241-12?
The package type is a 64-Pin QFN with dimensions of 9mm x 9mm x 0.75mm w/ EP.
- Does the LTC2241-12 have any power management features?
- What types of input signals can be used for the ENC+ and ENC– inputs?
The ENC+ and ENC– inputs can be driven differentially or single-ended with sine wave, PECL, LVDS, TTL, or CMOS inputs.
- Is there an optional clock duty cycle stabilizer available?
- What are some typical applications of the LTC2241-12?
