描述
The LTD211X family are high-precision, low-power, 16-bit analog-to-digital converters in a small-sized VSSOP-10L package. Oscillator and low-drift voltage reference are integrated internally. LTD2113 and LTD2114 support two single-ended input (or one differential input), while LTD2115 and LTD2118 support up to four single-ended inputs (or two differential inputs), switched by an input multiplexer. LTD2114 and LTD2115 provide a comparator feature for under-voltage and over-voltage detection. LTD2118 provides a precise internal temperature sensor for real-time temperature monitoring.
The LTD211X family supports a conversion rate up to 1024 samples per second (SPS). The integrated programmable gain amplifier (PGA) can modulate the input range from ±256 mV to ±6.144 V, to be suitable for both large and small input analog signals (LTD2113 excluded, fixed at ± 2.048 V). LTD2113, LTD2114 and LTD2115 is I2C compatible with four pin-selectable addresses. LTD2118 is SPI compatible.
The LTD211X family performs conversion in either continuous-mode or single-shot mode. The typical supply current value in continuous operation is 150 μA. In single-shot mode, the device enters power-down status automatically after the conversion is completed, which significantly suppresses the power consumption during idling. Such features make the LTD211X family appropriate for power sensitive applications such as battery-powered devices. The LTD211X family are available in 3 mm × 3 mm VSSOP-10L packages and specified in temperature range from -40℃ to 125℃.
优势和特点
- Wide voltage supply: 2 V to 5 V
- Low current consumption: 150 μA in continuous operation
- Wide Data rate option: 8 SPS to 1024 SPS
- Single-cycle settling
- Integrated voltage reference
- Integrated oscillator
- I2C compatible: four pin-selectable addresses (LTD2113, LTD2114 and LTD2115)
- SPI compatible (LTD2118 only)
- Four single-ended or two differential inputs (LTD2115 and LTD2118)
- Integrated comparator (LTD2114 and LTD2115)
- Integrated temperature sensor (LTD2118 only)
- Operating temperature range: -40℃ to 125℃
- Small package: 3 mm × 3 mm VSSOP-10L
应用
- Temperature measurement system
- Portable instruments
- Battery voltage and current monitoring
- Factory automation and process control
- Consumer electronics
