Overview
The LTC2268IUJ-12 is a high-performance, 2-channel, simultaneous sampling 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to digitize high-frequency, wide dynamic range signals, making it ideal for demanding applications such as communications, industrial, and automotive systems. The ADC features a single 1.8V supply, low power consumption, and excellent AC performance, including 70.6dB signal-to-noise ratio (SNR) and 88dB spurious free dynamic range (SFDR).
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Channels | 2 | |
| Resolution | 12 bits | |
| Sampling Rate | 125 MS/s | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Integral Nonlinearity (INL) | ±0.3 LSB | |
| Differential Nonlinearity (DNL) | ±0.1 LSB | |
| Signal to Noise and Distortion Ratio (SINAD) | 70.6 dB | |
| Spurious Free Dynamic Range (SFDR) | 88 dB | |
| Power Dissipation | 292 mW (total), 146 mW (per channel) | mW |
| Operating Temperature | -40°C to 85°C | °C |
| Package | 40-Pin QFN (6x6 mm) | |
| Data Interface | Serial LVDS |
Key Features
- Simultaneous sampling of two channels
- Low power consumption with 292mW total power and 146mW per channel
- Single 1.8V supply voltage
- Serial LVDS outputs with optional internal termination and adjustable output levels
- Selectable input ranges: 1Vpp to 2Vpp
- 800MHz full power bandwidth sample-and-hold (S/H)
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin compatible with 14-bit and 12-bit versions
Applications
- Demanding communications applications
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
- Industrial and automotive systems
Q & A
- What is the resolution of the LTC2268IUJ-12 ADC?
The LTC2268IUJ-12 has a resolution of 12 bits.
- What is the sampling rate of the LTC2268IUJ-12?
The sampling rate of the LTC2268IUJ-12 is 125 MS/s.
- What is the analog supply voltage range for the LTC2268IUJ-12?
The analog supply voltage range is 1.7V to 1.9V.
- What are the key AC performance metrics of the LTC2268IUJ-12?
The key AC performance metrics include 70.6dB SNR and 88dB SFDR.
- What type of data interface does the LTC2268IUJ-12 use?
The LTC2268IUJ-12 uses serial LVDS outputs.
- What are the power management features of the LTC2268IUJ-12?
The device features shutdown and nap modes for power management.
- What is the operating temperature range of the LTC2268IUJ-12?
The operating temperature range is -40°C to 85°C.
- What is the package type of the LTC2268IUJ-12?
The package type is a 40-Pin QFN (6x6 mm).
- What are some typical applications of the LTC2268IUJ-12?
Typical applications include cellular base stations, software defined radios, portable medical imaging, and multichannel data acquisition.
- Does the LTC2268IUJ-12 support simultaneous sampling?
Yes, the LTC2268IUJ-12 supports simultaneous sampling of two channels.
