Overview
The LTC2220-1, produced by Analog Devices Inc., is a high-performance 12-bit analog-to-digital converter (ADC) designed to digitize high-frequency, wide dynamic range signals. With a sampling rate of 185 Msps, this ADC is ideal for demanding communications applications that require excellent AC performance. It features a single 3.3V supply, low power dissipation, and various output formats including LVDS, CMOS, and demultiplexed CMOS outputs.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Sampling Frequency | 185 | 185 | 185 | Msps | |
| Analog Supply Voltage (VDD) | 3.1 | 3.3 | 3.5 | V | |
| Output Supply Voltage (OVDD) | 3 | 3.3 | 3.6 | V | |
| Analog Input Range (VIN) | 3.1V < VDD < 3.5V | ±0.5 | ±1 | V | |
| Analog Input Common Mode (VCM) | 1 | 1.6 | 1.9 | V | |
| Signal-to-Noise Ratio (SNR) | Up to 140MHz Input | 67.5 | dBFS | ||
| Spurious Free Dynamic Range (SFDR) | Up to 170MHz Input | 80 | dBFS | ||
| Full Power Bandwidth S/H | 775 | MHz | |||
| Power Dissipation | 910 | mW | |||
| Operating Temperature | 0 | 70 | °C |
Key Features
- High sampling rate of 185 Msps
- 12-bit resolution with no missing codes
- Excellent AC performance: 67.5dB SNR and 80dB SFDR up to 170MHz input
- Single 3.3V supply with low power dissipation (910mW)
- LVDS, CMOS, or demultiplexed CMOS output formats
- Selectable input ranges: ±0.5V or ±1V
- Optional clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Data ready output clock
- 64-pin 9mm × 9mm QFN package
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 LTC2220-1 ADC?
The LTC2220-1 ADC has a sampling rate of 185 Msps.
- What are the available output formats for the LTC2220-1?
The LTC2220-1 supports LVDS, CMOS, and demultiplexed CMOS output formats.
- What is the typical power dissipation of the LTC2220-1?
The typical power dissipation is 910mW.
- What are the selectable input ranges for the LTC2220-1?
The LTC2220-1 has selectable input ranges of ±0.5V or ±1V.
- Does the LTC2220-1 have any power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the operating temperature range of the LTC2220-1?
The operating temperature range is from 0°C to 70°C.
- What is the full power bandwidth of the sample-and-hold (S/H) circuit?
The full power bandwidth of the S/H circuit is 775MHz.
- Does the LTC2220-1 support clock duty cycle stabilization?
Yes, it has an optional clock duty cycle stabilizer.
- What is the typical signal-to-noise ratio (SNR) of the LTC2220-1 up to 140MHz input?
The typical SNR is 67.5dB up to 140MHz input.
- What is the spurious free dynamic range (SFDR) of the LTC2220-1 up to 170MHz input?
The SFDR is 80dB up to 170MHz input.
