Overview
The LTC2265CUJ-12 is a 2-channel, simultaneous sampling 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features low power consumption, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR), along with ultralow jitter, which allows for excellent noise performance even when undersampling IF frequencies.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of Channels | 2 |
| Sampling Rate | 65 MS/s |
| Analog Supply Voltage | 1.7V to 1.9V |
| Digital Supply Voltage | 1.7V to 1.9V |
| Input Type | Differential/Single-Ended |
| Input Range | 1V P-P to 2V P-P |
| SNR | 71 dB |
| SFDR | 90 dB |
| Jitter | 0.15 ps RMS |
| Full Power Bandwidth S/H | 800 MHz |
| Power Consumption (Total) | 167 mW / 112 mW / 94 mW |
| Power Consumption (Per Channel) | 83 mW / 56 mW / 47 mW |
| Package | 40-Pin QFN (6mm × 6mm) |
| Operating Temperature Range | 0°C to 70°C |
Key Features
- 2-Channel Simultaneous Sampling ADC
- 71 dB SNR and 90 dB SFDR for high AC performance
- Low Power Consumption: 167 mW / 112 mW / 94 mW total, and 83 mW / 56 mW / 47 mW per channel
- Single 1.8V Supply
- Serial LVDS Outputs: 1 or 2 bits per channel with optional internal termination and adjustable output levels
- Selectable Input Ranges: 1V P-P to 2V P-P
- 800 MHz Full Power Bandwidth Sample and Hold
- Shutdown and Nap Modes for power management
- Serial SPI Port for configuration
- Pin Compatible 14-Bit and 12-Bit Versions
Applications
The LTC2265CUJ-12 is particularly suited for demanding communications applications, including:
- High frequency signal processing
- Wide dynamic range signal digitization
- IF (Intermediate Frequency) undersampling with excellent noise performance
- Low power, high performance data acquisition systems
Q & A
- What is the resolution of the LTC2265CUJ-12 ADC?
The LTC2265CUJ-12 is a 12-bit analog-to-digital converter.
- How many channels does the LTC2265CUJ-12 have?
The LTC2265CUJ-12 has 2 channels.
- What is the sampling rate of the LTC2265CUJ-12?
The sampling rate is 65 MS/s.
- What are the input types supported by the LTC2265CUJ-12?
The device supports differential and single-ended inputs.
- What is the SNR and SFDR of the LTC2265CUJ-12?
The SNR is 71 dB, and the SFDR is 90 dB.
- What is the power consumption of the LTC2265CUJ-12?
The total power consumption is 167 mW / 112 mW / 94 mW, and per channel it is 83 mW / 56 mW / 47 mW.
- What is the package type of the LTC2265CUJ-12?
The device comes in a 40-Pin QFN (6mm × 6mm) package.
- What are the operating temperature ranges for the LTC2265CUJ-12?
The operating temperature range is 0°C to 70°C.
- Does the LTC2265CUJ-12 support shutdown and nap modes?
- How are the digital outputs configured on the LTC2265CUJ-12?
The digital outputs are serial LVDS, with options for 1 or 2 bits per channel.
