Overview
The LTC2205IUK-14 is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals up to input frequencies of 700MHz. It features a pipelined architecture and is particularly suited for demanding communications applications due to its excellent AC performance, including a signal-to-noise ratio (SNR) of 79dB and a spurious free dynamic range (SFDR) of 100dB. The LTC2205IUK-14 also includes a programmable gain amplifier (PGA) front end, allowing for optimization of the input range.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 14 | |
| Sampling Rate | 65Msps | |
| Input Type | Differential | |
| Input Frequency Range | Up to 700MHz | |
| SNR | 79dB | |
| SFDR | 100dB | |
| Jitter | 90fs RMS | |
| Supply Voltage (VDD) | 3.135V to 3.465V | V |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 48-QFN (7x7mm) | |
| Power Dissipation | 610mW | mW |
Key Features
- PGA Front End: Allows optimization of the input range with 2.25V P-P or 1.5V P-P input ranges.
- High AC Performance: 79dB SNR and 100dB SFDR.
- Low Jitter: 90fs RMS, enabling undersampling of high input frequencies with excellent noise performance.
- Flexible Output Power Supply: CMOS output swing can range from 0.5V to 3.6V.
- Optional Features: Internal dither, data output randomizer, and clock duty cycle stabilizer.
- Out-of-Range Indicator: Provides an indication when the input signal exceeds the full-scale range.
- Pin Compatible Family: Compatible with other LTC220x series ADCs.
Applications
- Telecommunications: Ideal for high-speed data conversion in telecommunications systems.
- Receivers: Used in various receiver applications requiring high dynamic range and low noise.
- Cellular Base Stations: Suitable for base station equipment due to its high performance and reliability.
- Spectrum Analysis: Employed in spectrum analyzers for precise signal analysis.
- Imaging Systems: Used in medical and industrial imaging systems requiring high-resolution data conversion.
- ATE (Automated Test Equipment): Utilized in test and measurement equipment for its precision and reliability.
Q & A
- What is the sampling rate of the LTC2205IUK-14?
The sampling rate of the LTC2205IUK-14 is 65Msps.
- What is the input frequency range of the LTC2205IUK-14?
The input frequency range of the LTC2205IUK-14 is up to 700MHz.
- What is the SNR of the LTC2205IUK-14?
The SNR of the LTC2205IUK-14 is 79dB.
- What is the SFDR of the LTC2205IUK-14?
The SFDR of the LTC2205IUK-14 is 100dB.
- What is the jitter performance of the LTC2205IUK-14?
The jitter performance of the LTC2205IUK-14 is 90fs RMS.
- What is the operating temperature range of the LTC2205IUK-14?
The operating temperature range of the LTC2205IUK-14 is -40°C to 85°C.
- What package type is the LTC2205IUK-14 available in?
The LTC2205IUK-14 is available in a 48-QFN (7x7mm) package.
- Does the LTC2205IUK-14 have an out-of-range indicator?
Yes, the LTC2205IUK-14 has an out-of-range indicator.
- Is the LTC2205IUK-14 RoHS compliant?
Yes, the LTC2205IUK-14 is RoHS compliant.
- What are some common applications of the LTC2205IUK-14?
The LTC2205IUK-14 is commonly used in telecommunications, receivers, cellular base stations, spectrum analysis, imaging systems, and automated test equipment.
