Overview
The AD7171BCPZ-500RL7 is a very low-power, 16-bit, analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is particularly suited for portable or battery-operated products where low power consumption is a critical requirement. It incorporates a precision 16-bit Σ-Δ (Sigma-Delta) ADC and an on-chip oscillator, consuming only 135 µA of current. The AD7171 also features a power-down mode where the device consumes just 5 μA, significantly extending battery life in applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Output Data Rate | 125 Hz |
| Power Supply | 2.7 V to 5.25 V |
| Current Consumption | 135 µA |
| Power-Down Current | 5 μA |
| Temperature Range | −40°C to +105°C |
| Package | 10-lead 3 mm × 3 mm LFCSP |
| Interface | 2-wire serial (SPI compatible) |
| Integral Nonlinearity (INL) | 0.4 LSB |
| Gain | 1 |
Key Features
- Low power consumption: 135 µA in normal operation and 5 μA in power-down mode.
- Pin-programmable power-down and reset.
- Status function with eight status bits appended to the 16-bit conversion data.
- Internal clock oscillator.
- 2-wire serial interface (SPI compatible).
- One differential analog input channel with a gain of 1.
- Sinc3 digital filter with a settling time of 24 ms.
Applications
- Weigh scales.
- Pressure measurement.
- Industrial process control.
- Portable instrumentation.
The AD7171BCPZ-500RL7 is ideal for use in sensor measurement and industrial and process-control applications due to its immunity to noisy environments provided by the Σ-Δ architecture.
Q & A
- What is the AD7171BCPZ-500RL7?
The AD7171BCPZ-500RL7 is a 16-bit, low-power, Sigma-Delta analog-to-digital converter (ADC) produced by Analog Devices Inc..
- What is the power consumption of the AD7171BCPZ-500RL7?
The device consumes 135 µA in normal operation and 5 μA in power-down mode).
- What is the output data rate of the AD7171BCPZ-500RL7?
The output data rate is 125 Hz).
- What is the temperature range of the AD7171BCPZ-500RL7?
The device operates within a temperature range of −40°C to +105°C).
- What type of package does the AD7171BCPZ-500RL7 come in?
The device is packaged in a 10-lead 3 mm × 3 mm LFCSP).
- What interface does the AD7171BCPZ-500RL7 use?
The device uses a 2-wire serial interface (SPI compatible)).
- What are the key applications of the AD7171BCPZ-500RL7?
The device is used in weigh scales, pressure measurement, industrial process control, and portable instrumentation).
- Does the AD7171BCPZ-500RL7 have an internal clock oscillator?
Yes, the device includes an internal clock oscillator).
- How many status bits are appended to the conversion data?
Eight status bits are appended to the 16-bit conversion data).
- What is the settling time for the first conversion after a reset?
The settling time is 24 ms).
