Overview
The LTC2314-14, produced by Analog Devices Inc., is a high-performance, 14-bit successive approximation register (SAR) analog-to-digital converter (ADC). This device is designed for high-speed, low-power applications and features a serial sampling architecture. It operates over a wide analog supply range from 2.7V to 5.25V, making it versatile for various system designs. The LTC2314-14 is particularly suited for compact, high-speed systems due to its excellent sample rate-to-power ratio and low power consumption of 6.2mA at 4.5Msps with a 5V supply.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate | 4.5 Msps |
| Input Type | Single Ended |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | Internal |
| Analog Supply Voltage | 2.7V to 5.25V |
| Digital Supply Voltage | 2.7V to 5.25V |
| Power Consumption | 6.2mA at 4.5Msps with 5V supply |
| SINAD | 77 dB |
| THD | -85 dB |
| Package | 8-Lead TSOT-23 |
Key Features
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3V, and 5V logic.
- Integrated bandgap and reference buffer providing a low drift (20ppm/°C max) internal reference.
- Low power consumption with nap and sleep modes for further power optimization.
- Excellent dynamic performance with 77dB SINAD and -85dB THD while sampling a 500kHz input frequency.
- Fast 4.5Msps throughput with one cycle of conversion latency.
- Dual supply range operation (3V/5V) and separate 1.8V to 5V digital I/O supply.
Applications
The LTC2314-14 is ideally suited for a wide variety of high-speed applications, including:
- Compact, low-power, high-speed systems.
- Automotive systems requiring high reliability and low power consumption.
- Industrial control and monitoring systems.
- Medical devices that require high precision and low noise.
- High-speed data acquisition systems.
Q & A
- What is the resolution of the LTC2314-14 ADC?
The LTC2314-14 is a 14-bit analog-to-digital converter.
- What is the sampling rate of the LTC2314-14?
The sampling rate of the LTC2314-14 is 4.5 Msps.
- What type of input does the LTC2314-14 support?
The LTC2314-14 supports single-ended inputs.
- What is the power consumption of the LTC2314-14 at 4.5 Msps with a 5V supply?
The power consumption is 6.2 mA at 4.5 Msps with a 5V supply.
- Does the LTC2314-14 have power-saving modes?
- What is the SINAD and THD performance of the LTC2314-14?
The LTC2314-14 achieves 77 dB SINAD and -85 dB THD while sampling a 500 kHz input frequency.
- What is the package type of the LTC2314-14?
The LTC2314-14 is available in an 8-Lead TSOT-23 package.
- Does the LTC2314-14 support multiple digital supply voltages?
- What is the reference type of the LTC2314-14?
The LTC2314-14 has an internal reference with a low drift of 20 ppm/°C max.
- Is the LTC2314-14 suitable for high-speed applications?
