LHA7904GFDBI
The LHA7904 device is an I2C-compatible, 12-bit, high-precision, low-power analog-to-digital converter (ADC) in small DFN-10 and MSOP-10 packages. The LHA7904 device integrates a low-drift voltage reference and oscillator. The LHA7904 also includes a Programmable Gain Amplifier (PGA) and a digital comparator. These features, combined with a wide operating supply voltage range, make the LHA7904 ideal for power-constrained and space-constrained sensor measurement applications.
The LHA7904 can perform conversions at data rates up to 1000 samples per second (SPS). The PGA provides an input range from ±256mV to ±6.144V, enabling accurate small and large signal measurements. The LHA7904 has an input multiplexer (MUX) that enables two pairs of differential input measurements or four single-ended input measurements. Digital comparators are available in the LHA7904 for undervoltage and overvoltage detection.
LHA7904 can work in both continuous conversion mode and single-shot mode. In single-shot mode, these devices automatically power down after a single conversion; thus significantly reducing power consumption during idle periods.
The LHA7904 can perform conversions at data rates up to 1000 samples per second (SPS). The PGA provides an input range from ±256mV to ±6.144V, enabling accurate small and large signal measurements. The LHA7904 has an input multiplexer (MUX) that enables two pairs of differential input measurements or four single-ended input measurements. Digital comparators are available in the LHA7904 for undervoltage and overvoltage detection.
LHA7904 can work in both continuous conversion mode and single-shot mode. In single-shot mode, these devices automatically power down after a single conversion; thus significantly reducing power consumption during idle periods.
Product Features
- 宽电源电压：2.2V 至 5.5V
- 低功耗：150μA（连续转换模式）
- 可编程数据传输速率：6.25SPS至1K SPS
- 单周期稳定
- 内部低漂移电压基准
- 内部振荡器
- I2C 接口：四个引脚可选地址
- 四个单端输入或两个差分输入
- 可编程比较器
- 工作温度范围：-40°C 至 +125°C
Application Scenario
- Portable meter
- Battery Voltage and Current Monitoring
- Temperature measurement system
- Consumer electronics products
- Factory Automation and Process Control
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