Overview
The LTC2165, 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 ADC is particularly suited for demanding communications applications, offering exceptional AC performance with a signal-to-noise ratio (SNR) of 76.8dB and a spurious free dynamic range (SFDR) of 90dB. The ultralow jitter of 0.07psRMS enables undersampling of IF frequencies with excellent noise performance. The device operates on a single 1.8V supply and features low power consumption, making it ideal for various high-speed data acquisition applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 | Bits |
| Sampling Rate | 125 Msps | |
| SNR | 76.8 dB | |
| SFDR | 90 dB | |
| Integral Linearity Error (INL) | ±2 LSB (typ) | |
| Differential Linearity Error (DNL) | ±0.5 LSB (typ) | |
| Input Type | Differential | |
| Input Range | 1V P-P to 2V P-P | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Digital Supply Voltage | 1.7V to 1.9V | V |
| Operating Temperature | 0°C to 70°C | °C |
| Package | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | |
| Power Consumption | 194mW (typ) | mW |
Key Features
- High AC performance with 76.8dB SNR and 90dB SFDR
- Ultralow jitter of 0.07psRMS for excellent noise performance
- Single 1.8V supply with low power consumption (194mW typ)
- Selectable input ranges: 1V P-P to 2V P-P
- 550MHz full power bandwidth sample-and-hold (S/H)
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Digital outputs: full rate CMOS, double data rate CMOS, or double data rate LVDS
- Separate output power supply for CMOS output swing (1.2V to 1.8V)
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multichannel Data Acquisition
- Nondestructive Testing
Q & A
- What is the resolution of the LTC2165 ADC?
The LTC2165 has a resolution of 16 bits.
- What is the sampling rate of the LTC2165?
The LTC2165 has a sampling rate of 125 Msps.
- What are the typical SNR and SFDR values for the LTC2165?
The typical SNR is 76.8 dB and the typical SFDR is 90 dB.
- What is the input type of the LTC2165?
The input type is differential.
- What are the available output formats for the LTC2165?
The digital outputs can be either full rate CMOS, double data rate CMOS, or double data rate LVDS.
- Does the LTC2165 support power management features?
- What is the operating temperature range of the LTC2165?
The operating temperature range is from 0°C to 70°C.
- What is the package type and size of the LTC2165?
The package is a 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP).
- Can the LTC2165 be configured via a serial interface?
- What are some typical applications of the LTC2165?
