Overview
The LTC2311-12, produced by Analog Devices Inc., is a high-performance 12-bit + sign successive approximation register (SAR) analog-to-digital converter (ADC). This component is designed for applications requiring a wide dynamic range and high common mode rejection. It operates from a single 3.3V or 5V supply and features differential inputs with an 8VP-P differential input range. The LTC2311-12 is notable for its low noise, high speed, and precision, making it suitable for a variety of high-speed applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit + sign |
| Sampling Rate | 5 Msps |
| Differential Input Range | 8VP-P |
| Supply Voltage | 3.3V or 5V |
| Integral Nonlinearity (INL) | ±0.25 LSB typical |
| Signal-to-Noise Ratio (SNR) | 73 dB typical |
| Reference Voltage | Onboard 2.048V or 4.096V temperature-compensated reference |
| Interface | High speed SPI-compatible serial interface (CMOS or LVDS) |
| Power Consumption | 50 mW at 5V supply |
| Operating Temperature | –40°C to 125°C |
| Package | 16-Lead Plastic MSOP |
Key Features
- Low noise and high speed operation with 5 Msps throughput and one-cycle latency.
- Differential inputs with a wide input common mode range.
- Onboard low drift (20 ppm/°C max) 2.048V or 4.096V temperature-compensated reference.
- External 1.25V buffered reference input option.
- High speed SPI-compatible serial interface supporting CMOS or LVDS.
- Nap and sleep modes for reduced power consumption during inactive periods.
- No missing codes at 12 bits and high SNR of 73 dB typical.
Applications
The LTC2311-12 is ideally suited for a wide variety of high-speed applications, including:
- High-speed data acquisition systems.
- Medical imaging and diagnostics.
- Industrial process control and monitoring.
- Aerospace and defense systems.
- Automotive and automotive safety systems.
Q & A
- What is the resolution of the LTC2311-12 ADC?
The LTC2311-12 has a resolution of 12-bit + sign.
- What is the sampling rate of the LTC2311-12?
The sampling rate is 5 Msps.
- What is the differential input range of the LTC2311-12?
The differential input range is 8VP-P.
- What are the supply voltage options for the LTC2311-12?
The LTC2311-12 operates from a single 3.3V or 5V supply.
- What is the typical integral nonlinearity (INL) of the LTC2311-12?
The typical INL is ±0.25 LSB.
- What is the signal-to-noise ratio (SNR) of the LTC2311-12?
The SNR is 73 dB typical.
- Does the LTC2311-12 have an onboard reference voltage?
Yes, it has an onboard 2.048V or 4.096V temperature-compensated reference.
- What type of serial interface does the LTC2311-12 support?
The LTC2311-12 supports a high speed SPI-compatible serial interface (CMOS or LVDS).
- How much power does the LTC2311-12 consume at a 5V supply?
The power consumption is 50 mW at a 5V supply.
- What are the operating temperature ranges for the LTC2311-12?
The operating temperature range is –40°C to 125°C.
