Overview
The LTC2312-14 is a 14-bit, 500ksps serial sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-speed, low-power applications and features an integrated low drift reference and reference buffer. It operates from a single 3V or 5V supply, making it versatile for various system designs. The LTC2312-14 is housed in an 8-lead TSOT-23 package, offering a compact solution for space-constrained systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 500 ksps |
| Supply Voltage | 3V or 5V |
| Supply Current | 3.2 mA (typical at 3V or 5V supply) |
| Reference Voltage | 2.048V (low supply range), 4.096V (high supply range) |
| Dynamic Performance | 77 dB SINAD, –85 dB THD |
| Operating Temperature Range | –40°C to 85°C (commercial), –40°C to 125°C (industrial) |
| Package Type | 8-Lead TSOT-23 |
| Serial Interface | SPI-compatible, supports 1.8V, 2.5V, 3V, and 5V logic |
Key Features
- High-speed sampling at 500 ksps with excellent dynamic performance (77 dB SINAD, –85 dB THD)
- Low power consumption: 15 mW from a 5V supply at 500 ksps
- Integrated low drift reference and reference buffer
- Automatic nap mode after conversions to reduce power consumption
- SPI-compatible serial interface supporting multiple logic levels (1.8V, 2.5V, 3V, and 5V)
- Compact 8-lead TSOT-23 package
- Operates from a single 3V or 5V supply
Applications
The LTC2312-14 is ideal for various high-speed, low-power applications, including:
- Industrial automation and control systems
- Medical devices requiring high accuracy and low noise
- Aerospace and defense systems where compact size and high performance are critical
- Automotive systems (automotive-grade versions available)
- Data acquisition systems and test equipment
Q & A
- What is the resolution of the LTC2312-14 ADC?
The LTC2312-14 has a resolution of 14 bits.
- What is the maximum sampling rate of the LTC2312-14?
The LTC2312-14 can sample at a rate of up to 500 ksps.
- What are the supply voltage options for the LTC2312-14?
The LTC2312-14 operates from a single 3V or 5V supply.
- How much current does the LTC2312-14 typically consume?
The LTC2312-14 typically consumes 3.2 mA from a 3V or 5V supply.
- What is the dynamic performance of the LTC2312-14?
The LTC2312-14 achieves 77 dB SINAD and –85 dB THD.
- What is the operating temperature range of the LTC2312-14?
The operating temperature range is –40°C to 85°C (commercial) and –40°C to 125°C (industrial).
- What type of package does the LTC2312-14 come in?
The LTC2312-14 is housed in an 8-lead TSOT-23 package.
- Is the LTC2312-14 suitable for automotive applications?
Yes, automotive-grade versions of the LTC2312-14 are available.
- What type of serial interface does the LTC2312-14 support?
The LTC2312-14 supports an SPI-compatible serial interface.
- Does the LTC2312-14 have an integrated reference and reference buffer?
Yes, the LTC2312-14 includes an integrated low drift reference and reference buffer.
