Overview
The LTC2312CTS8-12, produced by Analog Devices Inc., is a 12-bit, 500ksps serial sampling analog-to-digital converter (ADC). This device is designed for high-speed, low-power applications and features an integrated low drift reference and reference buffer, providing a cost-effective and high-performance solution. It operates from a single 3V or 5V supply, drawing only 3mA, and achieves outstanding AC performance with 72.7dB SINAD and –84dB THD while sampling at 500ksps. The LTC2312-12 is ideal for compact, low-power systems due to its high sample rate-to-power ratio and automatic entry into nap mode after conversions to conserve power.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 500 kS/s |
| Input Type | Single-Ended |
| Architecture | SAR (Successive Approximation Register) |
| Analog Supply Voltage | 3 V, 5 V |
| Digital Supply Voltage | 1.8 V to 5 V |
| Reference Type | Internal (2.048V or 4.096V) |
| Power Dissipation | 8 mW at 500 kS/s and 3 V supply |
| Operating Temperature Range | –40°C to 125°C |
| Package/Case | SOT-23-8 |
| DNL - Differential Nonlinearity | 0.2 LSB |
| INL - Integral Nonlinearity | 0.3 LSB |
| Gain Error | 1.5 LSB |
Key Features
- 500ksps Throughput Rate
- No Cycle Latency
- Guaranteed 12-Bit No Missing Codes
- Single 3V or 5V Supply
- Low Noise: 73dB SNR
- Low Power: 8mW at 500ksps and 3V Supply
- Low Drift (20ppm/°C Maximum) 2.048V or 4.096V Internal Reference
- Sleep Mode with < 1μA Typical Supply Current
- Nap Mode with Quick Wake-Up < 1 Conversion
- Separate 1.8V to 5V Digital I/O Supply
- High Speed SPI-Compatible Serial I/O
- Guaranteed Operation from –40°C to 125°C
- 8-Lead TSOT-23 Package
Applications
- Communication Systems
- High Speed Data Acquisition
- Handheld Terminal Interface
- Medical Imaging
- Uninterrupted Power Supplies
- Battery Operated Systems
- Automotive Systems
Q & A
- What is the resolution of the LTC2312CTS8-12 ADC?
The LTC2312CTS8-12 has a 12-bit resolution.
- What is the sampling rate of the LTC2312CTS8-12?
The sampling rate is 500 kS/s.
- What type of input does the LTC2312CTS8-12 support?
The LTC2312CTS8-12 supports single-ended inputs.
- What is the power consumption of the LTC2312CTS8-12 at 500ksps and 3V supply?
The power consumption is 8 mW at 500ksps and 3V supply.
- Does the LTC2312CTS8-12 have an internal reference?
Yes, it has an internal reference with options of 2.048V or 4.096V.
- What is the operating temperature range of the LTC2312CTS8-12?
The operating temperature range is –40°C to 125°C.
- What package type does the LTC2312CTS8-12 come in?
The LTC2312CTS8-12 comes in an 8-Lead TSOT-23 package.
- Does the LTC2312CTS8-12 support SPI-compatible serial interface?
Yes, it supports a high-speed SPI-compatible serial interface.
- What is the typical supply current in sleep mode?
The typical supply current in sleep mode is less than 1 μA.
- Is the LTC2312CTS8-12 RoHS compliant?
Yes, the LTC2312CTS8-12 is lead-free and RoHS compliant.
