Overview
The LTC2242-10, produced by Analog Devices Inc., is a high-performance 10-bit analog-to-digital converter (ADC) designed to digitize high-frequency, wide dynamic range signals. This ADC operates at a sampling rate of 250 Msps, making it ideal for demanding communications applications. It features excellent AC performance, including a signal-to-noise ratio (SNR) of 60.5 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. The device is powered by a single 2.5V supply and offers low power dissipation of 740 mW.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 10-bit | |
| Sampling Rate | 250 Msps | |
| SNR | 60.5 dB | |
| SFDR | 78 dB | |
| Full Power Bandwidth | 1.2 GHz | |
| Analog Supply Voltage | 2.375 - 2.625 V | |
| Power Dissipation | 740 mW | |
| Output Formats | LVDS, CMOS, or Demultiplexed CMOS | |
| Input Ranges | ±0.5V or ±1V | |
| INL (Typical) | ±0.4 LSB | |
| DNL (Typical) | ±0.2 LSB | |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) |
Key Features
- High sampling rate of 250 Msps
- Excellent AC performance with 60.5 dB SNR and 78 dB SFDR
- Ultralow jitter of 95 fs RMS for IF undersampling
- Single 2.5V supply with low power dissipation of 740 mW
- Digital outputs available in LVDS, CMOS, or demultiplexed CMOS formats
- Selectable input ranges of ±0.5V or ±1V
- 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 (LTC2242-12, LTC2241-12, etc.)
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 LTC2242-10?
The LTC2242-10 has a sampling rate of 250 Msps.
- What are the SNR and SFDR specifications of the LTC2242-10?
The SNR is 60.5 dB and the SFDR is 78 dB.
- What is the power supply voltage for the LTC2242-10?
The device operates on a single 2.5V supply.
- What are the available output formats for the LTC2242-10?
The digital outputs can be either differential LVDS, or single-ended CMOS, with options for demultiplexed CMOS outputs.
- What are the selectable input ranges for the LTC2242-10?
The input ranges are ±0.5V or ±1V.
- Does the LTC2242-10 have any power-saving modes?
Yes, it has shutdown and nap modes for power management.
- What is the typical INL and DNL for the LTC2242-10?
The typical INL is ±0.4 LSB and the typical DNL is ±0.2 LSB.
- Is the LTC2242-10 pin compatible with other ADCs in the family?
Yes, it is pin compatible with other family members like the LTC2242-12 and LTC2241-12.
- What is the package type of the LTC2242-10?
The device is packaged in a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP).
- What are some common applications of the LTC2242-10?
Common applications include wireless and wired broadband communication, cable head-end systems, power amplifier linearization, and communications test equipment.
