Overview
The LTC2320-14, produced by Analog Devices Inc., is a high-performance, low-noise, octal 14-bit + sign successive approximation register (SAR) analog-to-digital converter (ADC). This device is designed for applications requiring simultaneous sampling of multiple channels with high speed and precision. It operates from a single 3.3V or 5V supply and features differential inputs with a wide input common mode range, making it ideal for applications that demand a wide dynamic range and high common mode rejection.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 3.3V / 5V | 6V | V | ||
| Analog Input Voltage (AIN+, AIN–) | –0.3V to (VDD + 0.3V) | V | |||
| Input Differential Voltage Range | VIN = VIN+ – VIN– | –8V to 8V | V | ||
| Common Mode Input Range | 0 to VDD | V | |||
| Resolution | 14-bit + sign | ||||
| Sampling Rate | 1.5 Msps/Ch | sps | |||
| Integral Nonlinearity (INL) | ±1 LSB | LSB | |||
| Signal-to-Noise Ratio (SNR) | 81 dB | dB | |||
| Operating Temperature Range | LTC2320C | 0°C to 70°C | °C | ||
| Operating Temperature Range | LTC2320I | –40°C to 85°C | °C | ||
| Operating Temperature Range | LTC2320H | –40°C to 125°C | °C |
Key Features
- Octal 14-bit + sign SAR ADC with differential inputs
- Simultaneous sampling of all eight channels at 1.5 Msps per channel
- Low noise and high speed operation
- Wide input common mode range and high common mode rejection
- Integral nonlinearity (INL) of ±1 LSB typical, with no missing codes at 14 bits
- Signal-to-noise ratio (SNR) of 81 dB
- Onboard low drift reference with temperature coefficient of 20 ppm/°C
- Single 3.3V or 5V supply operation
- CMOS or LVDS digital output options
Applications
The LTC2320-14 is suitable for a variety of applications that require high-speed, high-precision analog-to-digital conversion. These include:
- Industrial process control and monitoring
- Medical imaging and diagnostics
- Aerospace and defense systems
- Automotive systems, especially those requiring simultaneous sampling of multiple sensors
- High-speed data acquisition systems
Q & A
- What is the resolution of the LTC2320-14 ADC?
The LTC2320-14 has a resolution of 14 bits + sign. - What is the sampling rate of the LTC2320-14?
The LTC2320-14 samples at 1.5 Msps per channel. - What is the typical integral nonlinearity (INL) of the LTC2320-14?
The typical INL is ±1 LSB. - What is the signal-to-noise ratio (SNR) of the LTC2320-14?
The SNR is 81 dB. - What are the operating supply voltages for the LTC2320-14?
The device operates from a single 3.3V or 5V supply. - What is the common mode input range of the LTC2320-14?
The common mode input range is 0 to VDD. - Does the LTC2320-14 support simultaneous sampling of all channels?
Yes, it supports simultaneous sampling of all eight channels. - What are the digital output options for the LTC2320-14?
The digital output options are CMOS or LVDS. - What is the temperature coefficient of the onboard reference?
The temperature coefficient of the onboard reference is 20 ppm/°C. - What are the operating temperature ranges for the LTC2320-14?
The operating temperature ranges are 0°C to 70°C for LTC2320C, –40°C to 85°C for LTC2320I, and –40°C to 125°C for LTC2320H.
