Overview
The LTC2231, produced by Analog Devices Inc., is a high-performance 10-bit pipelined analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This component is part of the LTC2230/LTC2231 family, which offers sampling rates of 170Msps and 135Msps, respectively. The LTC2231 is particularly suited for demanding communications applications, offering excellent AC performance with a signal-to-noise ratio (SNR) of 61dB and a spurious free dynamic range (SFDR) of 75dB for signals up to 200MHz. It features ultralow jitter of 0.15ps RMS, enabling undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Value |
|---|---|
| Sample Rate | 135 Msps |
| Resolution | 10 bits |
| SNR | 61 dB up to 140 MHz Input |
| SFDR | 75 dB up to 200 MHz Input |
| Full Power Bandwidth S/H | 775 MHz |
| Supply Voltage | Single 3.3V |
| Power Dissipation | 660 mW |
| Output Formats | LVDS, CMOS, or Demultiplexed CMOS |
| Input Ranges | ±0.5V or ±1V |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) |
| Operating Temperature | 0°C ~ 70°C |
| Input Type | Differential, Single Ended |
Key Features
- High sampling rates of 135 Msps
- Excellent AC performance with 61 dB SNR and 75 dB SFDR up to 200 MHz
- Ultralow jitter of 0.15 ps RMS
- Single 3.3V supply voltage
- Low power dissipation of 660 mW
- Support for LVDS, CMOS, or demultiplexed CMOS outputs
- Selectable input ranges of ±0.5V or ±1V
- No missing codes and low transition noise
- Optional clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Data ready output clock
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 LTC2231?
The LTC2231 has a sampling rate of 135 Msps.
- What is the resolution of the LTC2231?
The LTC2231 is a 10-bit ADC.
- What are the input ranges for the LTC2231?
The LTC2231 has selectable input ranges of ±0.5V or ±1V.
- What types of output formats does the LTC2231 support?
The LTC2231 supports LVDS, CMOS, or demultiplexed CMOS outputs.
- What is the power dissipation of the LTC2231?
The power dissipation of the LTC2231 is 660 mW.
- Does the LTC2231 have any power management features?
Yes, the LTC2231 includes shutdown and nap modes for power management).
- What is the operating temperature range of the LTC2231?
The operating temperature range of the LTC2231 is 0°C ~ 70°C).
- What types of input signals can the LTC2231 handle?
The LTC2231 can handle differential or single-ended input signals, including sine wave, PECL, LVDS, TTL, or CMOS inputs).
- Does the LTC2231 have an optional clock duty cycle stabilizer?
Yes, the LTC2231 has an optional clock duty cycle stabilizer to ensure high performance across a wide range of clock duty cycles).
- What is the package type of the LTC2231?
The LTC2231 is available in a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) package).
