Overview
The LTC2314-14, manufactured by Analog Devices Inc., is a 14-bit, 4.5Msps 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. It operates over a wide analog supply range from 2.7V to 5.25V and supports a high-speed SPI-compatible serial interface that is compatible with 1.8V, 2.5V, 3V, and 5V logic levels. The LTC2314-14 is ideal for compact, low-power systems requiring high-speed data acquisition.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sample Rate | 4.5 Msps |
| Analog Supply Range | 2.7V to 5.25V |
| Supply Current | 6.2 mA at 4.5 Msps and 5V |
| Internal Reference | 2.048V/4.096V Span |
| Reference Drift | 20 ppm/°C max |
| SINAD | 77 dB |
| THD | -85 dB |
| Digital I/O Supply Range | 1.8V to 5V |
| Package | 8-Lead TSOT-23 |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3V, and 5V logic.
- Integrated bandgap and reference buffer with low drift (20 ppm/°C max).
- Low power consumption: 6.2 mA at 4.5 Msps and 5V.
- Dual supply range: 3V/5V operation.
- Sleep mode with < 1 μA typical supply current and nap mode with quick wake-up.
- Guaranteed operation from -40°C to 125°C.
- 8-Lead TSOT-23 package for compact designs.
Applications
- Communication Systems
- High Speed Data Acquisition
- Handheld Terminal Interfaces
- Medical Imaging
- Uninterrupted Power Supplies
- Battery Operated Systems
- Automotive Systems
Q & A
- What is the resolution and sample rate of the LTC2314-14?
The LTC2314-14 is a 14-bit ADC with a sample rate of 4.5 Msps.
- What is the analog supply range for the LTC2314-14?
The analog supply range is from 2.7V to 5.25V.
- How much current does the LTC2314-14 draw at 4.5 Msps and 5V?
The device draws 6.2 mA at 4.5 Msps and 5V.
- What is the internal reference voltage span for the LTC2314-14?
The internal reference buffer is automatically configured to a 2.048V span in the low supply range and a 4.096V span in the high supply range.
- What are the SINAD and THD specifications for the LTC2314-14?
The LTC2314-14 achieves 77 dB SINAD and -85 dB THD.
- Does the LTC2314-14 support different digital I/O supply voltages?
Yes, it supports 1.8V to 5V digital I/O supply range.
- What package type is the LTC2314-14 available in?
The device is available in an 8-Lead TSOT-23 package.
- What are the power-saving modes available in the LTC2314-14?
The device features both nap and sleep modes for power optimization.
- What is the operating temperature range for the LTC2314-14?
The operating temperature range is from -40°C to 125°C.
- What types of applications is the LTC2314-14 suited for?
The LTC2314-14 is suited for communication systems, high-speed data acquisition, handheld terminal interfaces, medical imaging, uninterrupted power supplies, battery-operated systems, and automotive systems.
