Overview
The LTC2205IUK, produced by Analog Devices Inc., is a high-performance 16-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This sampling ADC is optimized for demanding communications applications, offering exceptional AC performance and low jitter. The device features a programmable gain amplifier (PGA) front end, allowing for input range optimization, and supports input frequencies up to 700MHz. With its ultralow jitter of 90fs RMS, the LTC2205IUK is ideal for undersampling high input frequencies while maintaining excellent noise performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Sample Rate | 65 Msps | |
| Signal-to-Noise Ratio (SNR) | 79.1 dB (5 MHz input, 2.25V range, PGA = 0) | dBFS |
| Spurious Free Dynamic Range (SFDR) | 100 dB (5 MHz input, 2.25V range, PGA = 0) | dBFS |
| Integral Linearity Error (INL) | ±4 LSB | |
| Differential Linearity Error (DNL) | ±1 LSB (no missing codes) | |
| Analog Supply Voltage | 3.135V to 3.465V | V |
| Digital Supply Voltage | 3.135V to 3.465V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Package | 48-WFQFN Exposed Pad (7x7 mm) |
Key Features
- PGA Front End: Programmable gain amplifier allowing for input range optimization (2.25V or 1.5V peak-to-peak input range).
- High Frequency Capability: Supports input frequencies up to 700MHz with full power bandwidth S/H.
- Low Jitter: Ultralow jitter of 90fs RMS, enabling undersampling of high input frequencies with excellent noise performance.
- Optional Internal Dither and Data Output Randomizer: Enhances noise performance and reduces quantization noise.
- Single 3.3V Supply: Simplifies power supply design.
- Optional Clock Duty Cycle Stabilizer: Ensures high performance across a wide range of clock duty cycles.
- Out-of-Range Indicator: Provides an indication when the input signal exceeds the full-scale range.
- CMOS Output Swing: Adjustable from 0.5V to 3.6V.
Applications
- Telecommunications: Ideal for high-speed data conversion in telecommunications systems.
- Receivers and Cellular Base Stations: Used in receiver chains and base stations for high-frequency signal processing.
- Spectrum Analysis: Suitable for spectrum analyzers due to its high dynamic range and low jitter.
- Imaging Systems: Applied in imaging systems requiring high-speed and high-resolution data conversion.
- Automatic Test Equipment (ATE): Used in test and measurement equipment for precise signal analysis).
Q & A
- What is the maximum sampling rate of the LTC2205IUK?
The LTC2205IUK has a maximum sampling rate of 65 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2205IUK?
The SNR of the LTC2205IUK is 79.1 dB for a 5 MHz input with a 2.25V range and PGA = 0).
- What is the spurious free dynamic range (SFDR) of the LTC2205IUK?
The SFDR of the LTC2205IUK is 100 dB for a 5 MHz input with a 2.25V range and PGA = 0).
- What is the operating temperature range of the LTC2205IUK?
The operating temperature range is -40°C to 85°C).
- What package type is the LTC2205IUK available in?
The LTC2205IUK is available in a 48-WFQFN Exposed Pad package (7x7 mm)).
- Does the LTC2205IUK support internal dither and data output randomizer?
Yes, the LTC2205IUK supports optional internal dither and data output randomizer).
- What is the power supply voltage range for the LTC2205IUK?
The power supply voltage range is 3.135V to 3.465V for both analog and digital supplies).
- Can the LTC2205IUK be used in telecommunications applications?
Yes, the LTC2205IUK is ideal for telecommunications applications due to its high-speed and high-dynamic range capabilities).
- What is the jitter performance of the LTC2205IUK?
The LTC2205IUK has an ultralow jitter of 90fs RMS).
- Does the LTC2205IUK have an out-of-range indicator?
Yes, the LTC2205IUK includes an out-of-range indicator).
