Overview
The LTC2315-12, produced by Analog Devices Inc., is a 12-bit, 5Msps (Mega Samples Per Second) serial sampling Analog-to-Digital Converter (ADC). This device is designed for high-speed, low-power applications and features an integrated bandgap and reference buffer, providing a high-performance and space-saving solution. The LTC2315-12 operates from a wide analog supply range of 2.7V to 5.25V and draws only 6.4mA at 5Msps and 5V, making it ideal for compact, low-power systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sample Rate | 5Msps |
| Analog Supply Range | 2.7V to 5.25V |
| Digital Supply Range | 1.71V to 5.25V |
| Current Consumption | 6.4mA at 5Msps and 5V |
| SINAD (Signal-to-Noise and Distortion Ratio) | 72.6dB |
| THD (Total Harmonic Distortion) | -84dB |
| Reference Voltage | 2.048V/4.096V |
| Package | 8-Lead SOT-23 |
| Operating Temperature Range | Varies by grade (e.g., commercial, industrial, military) |
| Interface | High-speed SPI-compatible serial interface |
| Power Modes | Sleep mode (< 1µA), Nap mode with quick wake-up |
Key Features
- Integrated bandgap and reference buffer for high performance and space-saving applications.
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3V, and 5V logic.
- Low noise: 73dB SNR (Signal-to-Noise Ratio).
- Low power consumption: 6.4mA at 5Msps and 5V.
- Dual supply range: 3V/5V operation.
- Sleep mode with < 1µA typical supply current and nap mode with quick wake-up.
- Separate 1.8V to 5V digital I/O supply.
Applications
The LTC2315-12 is ideally suited for a wide variety of high-speed applications, including:
- High-speed data acquisition systems.
- Medical imaging and diagnostics.
- Aerospace and defense systems.
- Industrial automation and control systems.
- Communications and telecommunications equipment.
Q & A
- What is the resolution of the LTC2315-12 ADC?
The LTC2315-12 is a 12-bit ADC.
- What is the maximum sample rate of the LTC2315-12?
The maximum sample rate is 5Msps.
- What is the analog supply voltage range for the LTC2315-12?
The analog supply voltage range is from 2.7V to 5.25V.
- How much current does the LTC2315-12 consume at 5Msps and 5V?
The device consumes 6.4mA at 5Msps and 5V.
- What is the SINAD of the LTC2315-12 when sampling a 500kHz input frequency?
The SINAD is 72.6dB.
- Does the LTC2315-12 have power-saving modes?
- What type of interface does the LTC2315-12 use?
The device uses a high-speed SPI-compatible serial interface.
- What are the supported logic levels for the digital I/O of the LTC2315-12?
The supported logic levels are 1.8V, 2.5V, 3V, and 5V.
- What is the package type of the LTC2315-12?
The package type is 8-Lead SOT-23.
- What are some typical applications of the LTC2315-12?
Typical applications include high-speed data acquisition systems, medical imaging, aerospace and defense systems, industrial automation, and communications equipment.
