Overview
The LTC2311-14, produced by Analog Devices Inc., is a high-performance, low noise, 14-bit + sign successive approximation register (SAR) analog-to-digital converter (ADC). This device features differential inputs and a wide input common mode range, making it ideal for applications requiring a wide dynamic range with high common mode rejection. It operates from a single 3.3V or 5V supply and is designed for high-speed applications with a throughput rate of 5Msps and one-cycle latency.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14-bit + sign | |
| Sample Rate | 5 Msps | |
| Differential Input Range | 8 VP-P | |
| Input Common Mode Range | 0 to VDD | |
| Integral Nonlinearity (INL) | ±0.75 LSB (typ), ±2 LSB (guaranteed) | |
| Signal-to-Noise Ratio (SNR) | 80 dB (typ) | |
| Supply Voltage | 3.3V or 5V | |
| Power Consumption | 50 mW (active), 5 μW (sleep) | |
| Operating Temperature Range | -40°C to 85°C | |
| Package | 16-Lead MSOP |
Key Features
- Low noise and high speed operation with 5 Msps throughput and one-cycle latency.
- Differential inputs with an 8 VP-P input range and 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.
- High speed SPI-compatible serial interface supporting CMOS or LVDS.
- Low power consumption with nap and sleep modes reducing power to 5 μW.
- No missing codes at 14 bits and high SNR of 80 dB typical.
Applications
The LTC2311-14 is suited for a variety of high-speed applications that require precise and reliable analog-to-digital conversion. These include:
- High-speed data acquisition systems.
- Medical imaging and diagnostic equipment.
- Aerospace and defense applications.
- Industrial automation and control systems.
- Automotive systems requiring high reliability and precision.
Q & A
- What is the resolution of the LTC2311-14 ADC?
The LTC2311-14 has a resolution of 14-bit + sign.
- What is the sample rate of the LTC2311-14?
The sample rate is 5 Msps.
- What is the differential input range of the LTC2311-14?
The differential input range is 8 VP-P.
- What is the typical integral nonlinearity (INL) of the LTC2311-14?
The typical INL is ±0.75 LSB.
- What is the signal-to-noise ratio (SNR) of the LTC2311-14?
The SNR is 80 dB typical.
- What are the supply voltage options for the LTC2311-14?
The supply voltage options are 3.3V or 5V.
- What is the power consumption of the LTC2311-14 in active and sleep modes?
The power consumption is 50 mW in active mode and 5 μW in sleep mode.
- What is the operating temperature range of the LTC2311-14?
The operating temperature range is -40°C to 85°C.
- What type of serial interface does the LTC2311-14 support?
The LTC2311-14 supports a high-speed SPI-compatible serial interface with CMOS or LVDS options.
- Does the LTC2311-14 have onboard reference options?
Yes, it has an onboard low drift (20 ppm/°C max) 2.048V or 4.096V temperature compensated reference.
