Overview
The LTC2220IUP is a high-performance 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed to digitize high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. The LTC2220IUP features a pipelined architecture and operates at a sampling rate of 170 Msps, providing excellent AC performance with a signal-to-noise ratio (SNR) of 67.5 dB and a spurious free dynamic range (SFDR) of 80 dB up to 170 MHz. The ultralow jitter of 0.15 ps RMS enables undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Number of Bits | 12 | - | - | - |
| Sampling Rate (Per Second) | - | 170M | - | Msps |
| Number of Inputs | 1 | - | - | - |
| Input Type | Differential, Single Ended | - | - | - |
| Data Interface | Parallel | - | - | - |
| Configuration | S/H-ADC | - | - | - |
| Architecture | Pipelined | - | - | - |
| Reference Type | External, Internal | - | - | - |
| Voltage - Supply, Analog | 3.1 | 3.3 | 3.5 | V |
| Voltage - Supply, Digital | 3.1 | 3.3 | 3.5 | V |
| Operating Temperature | -40°C | - | 85°C | °C |
| Package / Case | 64-WFQFN Exposed Pad | - | - | - |
| SNR | - | 67.5 dB | - | dB |
| SFDR | - | 80 dB | - | dB |
| Jitter | - | 0.15 ps RMS | - | ps |
Key Features
- High-speed sampling rate of up to 170 Msps, making it suitable for high-frequency signal processing.
- Excellent AC performance with 67.5 dB SNR and 80 dB SFDR up to 170 MHz.
- Ultralow jitter of 0.15 ps RMS, enabling undersampling of IF frequencies with excellent noise performance.
- DC specifications include ±0.4 LSB INL (typ), ±0.3 LSB DNL (typ), and no missing codes over temperature.
- Low transition noise of 0.5 LSB RMS.
- Digital outputs available in differential LVDS or single-ended CMOS, with three format options for CMOS outputs.
- Selectable input ranges: 0.5V or 1V.
- Optional clock duty cycle stabilizer.
- Shutdown and nap modes for power management.
- Single 3.3V supply voltage.
- Low power dissipation: 890 mW (LVDS mode) and 660 mW (CMOS mode).
Applications
The LTC2220IUP is particularly suited for demanding communications applications, including:
- High-frequency signal processing in wireless communication systems.
- Digitization of wide dynamic range signals in radar and surveillance systems.
- High-speed data acquisition in medical imaging and diagnostic equipment.
- IF sampling in software-defined radios and other communication systems.
Q & A
- What is the sampling rate of the LTC2220IUP?
The LTC2220IUP has a sampling rate of up to 170 Msps.
- What is the resolution of the LTC2220IUP?
The LTC2220IUP is a 12-bit analog-to-digital converter.
- What are the input types supported by the LTC2220IUP?
The LTC2220IUP supports both differential and single-ended inputs.
- What are the available output formats for the LTC2220IUP?
The digital outputs can be either differential LVDS or single-ended CMOS, with three format options for CMOS outputs.
- What is the operating temperature range of the LTC2220IUP?
The operating temperature range is from -40°C to 85°C.
- What is the power consumption of the LTC2220IUP in LVDS mode?
The power dissipation in LVDS mode is approximately 890 mW.
- Does the LTC2220IUP have power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the jitter performance of the LTC2220IUP?
The LTC2220IUP has an ultralow jitter of 0.15 ps RMS.
- What are the typical DC specifications of the LTC2220IUP?
The DC specifications include ±0.4 LSB INL (typ), ±0.3 LSB DNL (typ), and no missing codes over temperature.
- What is the full power bandwidth of the LTC2220IUP?
The full power bandwidth is up to 775 MHz.
