Overview
The LTC2320-12, produced by Analog Devices Inc., is a high-performance, low-noise, octal 12-bit successive approximation register (SAR) analog-to-digital converter (ADC). This component is designed for high-speed applications requiring simultaneous sampling across eight channels. It operates from a single 3.3 V or 5 V supply and features differential inputs with a wide input common mode range, making it ideal for applications that demand high dynamic range and common mode rejection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit + sign | |
| Sampling Rate | 1.5 Msps per channel | |
| Input Range | 8 VP-P differential | |
| Signal-to-Noise Ratio (SNR) | 77 dB (typ) at fIN = 500 kHz | |
| Total Harmonic Distortion (THD) | -90 dB (typ) at fIN = 500 kHz | |
| Supply Voltage | 3.3 V or 5 V | |
| Internal Reference | 2.048 V or 4.096 V, low drift (20 ppm/°C max) | |
| I/O Voltage | 1.8 V to 2.5 V | |
| Serial Interface | CMOS or LVDS SPI-compatible | |
| Power Dissipation | 20 mW per channel (typ) | |
| Package | 52-Lead QFN (7mm x 8mm x 0.85mm) | |
| Operating Temperature | -40°C to +125°C |
Key Features
- Eight simultaneously sampling channels
- Guaranteed 12-bit, no missing codes
- Wide input common mode range
- High speed SPI-compatible serial interface (CMOS or LVDS)
- Low drift internal reference (2.048 V or 4.096 V)
- Low power consumption: 20 mW per channel (typ), with nap and sleep modes for further power savings
- Small 52-Lead QFN package (7mm x 8mm x 0.85mm)
Applications
- High-speed data acquisition systems
- Communications
- Remote data acquisition
- Imaging
- Optical networking
- Multiphase motor control
Q & A
- What is the resolution of the LTC2320-12 ADC?
The LTC2320-12 has a resolution of 12-bit + sign.
- What is the sampling rate of the LTC2320-12?
The sampling rate is 1.5 Msps per channel.
- What is the input range of the LTC2320-12?
The input range is 8 VP-P differential.
- What is the signal-to-noise ratio (SNR) of the LTC2320-12?
The SNR is 77 dB (typ) at fIN = 500 kHz.
- What is the total harmonic distortion (THD) of the LTC2320-12?
The THD is -90 dB (typ) at fIN = 500 kHz.
- What supply voltages does the LTC2320-12 support?
The LTC2320-12 operates from a single 3.3 V or 5 V supply.
- What are the features of the internal reference of the LTC2320-12?
The internal reference is 2.048 V or 4.096 V with low drift (20 ppm/°C max).
- What is the power dissipation of the LTC2320-12?
The power dissipation is 20 mW per channel (typ).
- What package type does the LTC2320-12 come in?
The LTC2320-12 comes in a 52-Lead QFN package (7mm x 8mm x 0.85mm).
- What are some typical applications of the LTC2320-12?
Typical applications include high-speed data acquisition systems, communications, remote data acquisition, imaging, optical networking, and multiphase motor control.
