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 common mode rejection and a wide dynamic range. Operating from a single 3.3V or 5V supply, the LTC2320-14 offers an 8VP-P differential input range, making it ideal for various industrial, medical, and test and measurement applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 3.0 | 5.5 | V | ||
| Analog Input Voltage (AIN+, AIN–) | -0.3 | VDD + 0.3 | V | ||
| Differential Input Voltage Range (VIN = VIN+ - VIN–) | -REFOUT | REFOUT | V | ||
| Common Mode Input Range (VCM) | 0 | VDD | V | ||
| Sampling Rate | 1.5 | Msps/Ch | |||
| Resolution | 14-bit + sign | ||||
| Integral Nonlinearity (INL) | ±1 LSB | ||||
| Signal-to-Noise Ratio (SNR) | 81 | dB | |||
| Operating Temperature Range | LTC2320H | -40 | 125 | °C |
Key Features
- Octal, 14-bit + sign SAR ADC with differential inputs.
- Simultaneous sampling of all eight channels at 1.5Msps per channel.
- Low noise and high common mode rejection.
- Wide input common mode range and 8VP-P differential input range.
- No missing codes at 14 bits and ±1LSB INL typical.
- Onboard low drift reference with 20ppm/°C temperature coefficient.
- Single 3.3V or 5V supply operation.
- Available in a 52-lead (7mm × 8mm) QFN package.
Applications
The LTC2320-14 is suitable for a variety of applications, including:
- Industrial process control and monitoring.
- Medical imaging and diagnostics.
- Test and measurement equipment.
- Aerospace and defense systems.
- High-performance data acquisition systems.
Q & A
- What is the resolution of the LTC2320-14 ADC?
The LTC2320-14 has a resolution of 14-bit + sign. - What is the sampling rate of the LTC2320-14?
The LTC2320-14 samples at 1.5Msps per channel. - What is the differential input voltage range of the LTC2320-14?
The differential input voltage range is 8VP-P. - What is the common mode input range of the LTC2320-14?
The common mode input range is from 0 to VDD. - Does the LTC2320-14 have onboard reference voltage generation?
Yes, the LTC2320-14 has an onboard low drift reference. - What is the temperature coefficient of the onboard reference?
The temperature coefficient of the onboard reference is 20ppm/°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. - What package type is the LTC2320-14 available in?
The LTC2320-14 is available in a 52-lead (7mm × 8mm) QFN package. - What is the signal-to-noise ratio (SNR) of the LTC2320-14?
The SNR of the LTC2320-14 is 81dB. - Does the LTC2320-14 support simultaneous sampling of all channels?
Yes, the LTC2320-14 supports simultaneous sampling of all eight channels.
