Overview
The LTC2231IUP, manufactured by Analog Devices Inc., is a high-performance 10-bit pipelined analog-to-digital converter (ADC) designed for high-speed applications. This ADC operates at a sampling rate of 135 Msps and is known for its excellent signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR). It is powered by a single 3.3V supply and features a 64-pin QFN exposed pad package, making it suitable for a variety of high-frequency signal processing tasks.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Sampling Rate | 135 Msps |
| Signal-to-Noise Ratio (SNR) | 61 dB up to 140 MHz input |
| Spurious-Free Dynamic Range (SFDR) | 75 dB up to 200 MHz input |
| Full Power Bandwidth | 775 MHz |
| Analog Supply Voltage | 3.1V ~ 3.5V |
| Digital Supply Voltage | 3.1V ~ 3.5V |
| Package Type | 64-WFQFN Exposed Pad |
| Operating Temperature | -40°C ~ 85°C |
| Input Type | Differential, Single-Ended |
| Data Interface | LVDS - Parallel, Parallel |
Key Features
- Pipelined ADC architecture with five stages for high-speed conversion.
- Internal 1.6V bandgap reference with pin-selectable input ranges of 2V (±1V differential) or 1V (±0.5V differential).
- Differential and single-ended input options with improved common mode noise immunity.
- Separate power and ground pins for digital output drivers to isolate from analog circuitry.
- Support for CMOS and LVDS output modes.
- Low aperture delay jitter to minimize noise when sampling AC inputs.
Applications
The LTC2231IUP is suitable for a wide range of high-speed data acquisition and signal processing applications, including:
- Wireless communication systems.
- Radar and surveillance systems.
- Medical imaging and diagnostic equipment.
- High-speed data acquisition systems.
- Test and measurement instruments.
Q & A
- What is the sampling rate of the LTC2231IUP ADC?
The LTC2231IUP ADC has a sampling rate of 135 Msps. - What is the signal-to-noise ratio (SNR) of the LTC2231IUP?
The SNR of the LTC2231IUP is up to 61 dB for input frequencies up to 140 MHz. - What is the package type of the LTC2231IUP?
The LTC2231IUP comes in a 64-WFQFN exposed pad package. - What are the operating temperature ranges for the LTC2231IUP?
The operating temperature range is -40°C to 85°C. - Does the LTC2231IUP support both differential and single-ended inputs?
Yes, the LTC2231IUP supports both differential and single-ended input configurations. - What are the available output modes for the LTC2231IUP?
The LTC2231IUP supports CMOS and LVDS output modes. - How is the internal voltage reference configured in the LTC2231IUP?
The internal voltage reference can be configured for two pin-selectable input ranges of 2V (±1V differential) or 1V (±0.5V differential). - What is the purpose of the separate power and ground pins for the digital output drivers?
The separate power and ground pins allow the output drivers to be isolated from the analog circuitry, reducing noise and interference. - What is the significance of the aperture delay jitter in the LTC2231IUP?
The low aperture delay jitter minimizes noise when sampling AC inputs, ensuring better signal integrity. - Is the LTC2231IUP RoHS compliant?
Yes, the LTC2231IUP is RoHS compliant.
