Overview
The LTC2323-12, produced by Analog Devices Inc., is a high-performance, dual 12-bit successive approximation register (SAR) analog-to-digital converter (ADC). This device is designed for high-speed data acquisition and features differential inputs with a wide input common mode range. Operating from a single 3.3 V or 5 V supply, it is ideal for applications requiring a wide dynamic range and high common mode rejection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit + sign | |
| Sampling Rate | 5 Msps | |
| Differential Input Range | 8 VP-P | |
| Integral Nonlinearity (INL) | ±0.5 LSB (typ) | |
| Signal-to-Noise Ratio (SNR) | 73 dB (typ) at fIN = 2 MHz | |
| Total Harmonic Distortion (THD) | –85 dB (typ) at fIN = 2 MHz | |
| Operating Temperature | –40°C to +125°C | |
| Supply Voltage | 3.3 V or 5 V | |
| I/O Voltage | 1.8 V to 2.5 V | |
| Package | 28-Lead QFN (4mm x 5mm x 0.75mm) | |
| Power Dissipation | 38 mW/Ch (typ) |
Key Features
- High-speed throughput rate of 5 Msps
- Guaranteed 12-bit resolution with no missing codes
- Wide input common mode range and 8 VP-P differential input range
- Low drift internal reference (2.048 V or 4.096 V)
- CMOS or LVDS SPI-compatible serial I/O
- Low power dissipation of 38 mW per channel (typical)
- Compact 28-lead QFN package (4mm x 5mm x 0.75mm)
- Guaranteed operation up to 125°C
Applications
- High-speed data acquisition systems
- Communications
- Remote data acquisition
- Imaging
- Optical networking
- Multiphase motor control
Q & A
- What is the resolution of the LTC2323-12 ADC?
The LTC2323-12 has a resolution of 12 bits + sign.
- What is the sampling rate of the LTC2323-12?
The sampling rate is 5 Msps.
- What is the differential input range of the LTC2323-12?
The differential input range is 8 VP-P.
- What is the typical integral nonlinearity (INL) of the LTC2323-12?
The typical INL is ±0.5 LSB.
- What is the signal-to-noise ratio (SNR) of the LTC2323-12 at 2 MHz input frequency?
The SNR is 73 dB (typical) at fIN = 2 MHz.
- What is the total harmonic distortion (THD) of the LTC2323-12 at 2 MHz input frequency?
The THD is –85 dB (typical) at fIN = 2 MHz.
- What are the operating temperature ranges for the LTC2323-12?
The operating temperature range is –40°C to +125°C.
- What are the supply voltage options for the LTC2323-12?
The supply voltage options are 3.3 V or 5 V.
- What is the package type and size of the LTC2323-12?
The package is a 28-lead QFN (4mm x 5mm x 0.75mm).
- What is the typical power dissipation per channel for the LTC2323-12?
The typical power dissipation is 38 mW per channel.
