Overview
The LTC2312HTS8-14 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 operates from a single 3V or 5V supply, drawing only 3.2mA. It features an integrated low drift reference and reference buffer, providing a high-performance and space-saving solution. The ADC achieves outstanding AC performance with 77dB SINAD and -85dB THD while sampling at 500ksps, making it ideal for compact, high-speed systems.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate | 500ksps |
| 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 (Successive Approximation Register) |
| Reference Type | Internal |
| Voltage - Supply, Analog | 2.7 V ~ 3.6 V, 4.75 V ~ 5.25 V |
| Voltage - Supply, Digital | 2.7 V ~ 3.6 V, 4.75 V ~ 5.25 V |
| Package | TSOT-23-8 |
Key Features
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3V, and 5V logic.
- Low power consumption: 9mW at 500ksps with a 3V supply and 15mW with a 5V supply.
- Low drift internal reference and reference buffer (20ppm/°C maximum).
- Excellent dynamic performance: 77dB SINAD and -85dB THD.
- No cycle latency; conversion data output directly onto the SDO pin.
- Automatic nap mode and sleep mode with < 1µA typical supply current.
- Separate 1.8V to 5V digital I/O supply range.
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 of the LTC2312HTS8-14 ADC?
The LTC2312HTS8-14 is a 14-bit ADC.
- What is the sampling rate of the LTC2312HTS8-14?
The sampling rate is 500ksps.
- What type of input does the LTC2312HTS8-14 support?
The LTC2312HTS8-14 supports single-ended inputs.
- What is the data interface of the LTC2312HTS8-14?
The data interface is SPI-compatible.
- What is the power consumption of the LTC2312HTS8-14 at 500ksps with a 3V supply?
The power consumption is 9mW at 500ksps with a 3V supply.
- Does the LTC2312HTS8-14 have an internal reference?
Yes, it has an internal reference with a low drift of 20ppm/°C maximum.
- What are the typical applications of the LTC2312HTS8-14?
Typical applications include communication systems, high-speed data acquisition, medical imaging, and automotive systems.
- How does the LTC2312HTS8-14 manage power consumption during idle periods?
The device automatically enters nap mode after conversions and has a sleep mode with < 1µA typical supply current.
- What is the package type of the LTC2312HTS8-14?
The package type is TSOT-23-8.
- Does the LTC2312HTS8-14 support multiple logic levels for the digital interface?
Yes, it supports 1.8V, 2.5V, 3V, and 5V logic levels.
