AD7170BCPZ-REEL7 12-bit low-power sigma−δ type ADC
The AD7170 is an extremely low-power, 12-bit analog-to-digital converter (ADC) with a precision 12-bit sigma-delta ADC and an on-chip oscillator. The device consumes only 135 μA, making it ideal for portable or battery-powered products that require very low power consumption. It also features a power-down mode in which the device consumes only 5 μA, extending the product's battery life.
For ease of use, all features of the AD7170 are controlled by dedicated pins. Each time a data read operation occurs, 8 status bits are attached to the 12-bit conversion result. These status bits contain a code sequence that can be used to confirm the validity of serial transmissions. The AD7170 has an output data rate of 125 Hz and a settling time of 24 ms. It has a differential input with a gain of 1. This feature is useful in applications where the user needs an external amplifier to meet system-specific filtering or gain requirements.
The AD7170 operates from a 2.7 V to 5.25 V supply and is available in a 10-pin LFCSP package.
The AD7171 is a 16-bit version of the AD7170. It has the same feature set as the AD7170 and is pin-compatible.
interface
- 双线式串行接口（只读器件）
- SPI兼容
- SCLK引脚内的施密特触发
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