Overview
The AD7170BCPZ-500RL7, produced by Analog Devices Inc., is a 12-bit low power sigma-delta (Σ-Δ) analog-to-digital converter (ADC). This device is particularly suited for portable or battery-operated products due to its very low power consumption of 135 μA. It also features a power-down mode that reduces the current consumption to 5 μA, significantly extending battery life. The AD7170 is controlled by dedicated pins and includes an on-chip oscillator, making it user-friendly and efficient. The device operates with a power supply range of 2.7 V to 5.25 V and is available in a 10-lead LFCSP package.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Output Data Rate | 125 Hz |
| Power Consumption | 135 μA (active), 5 μA (power-down) |
| Power Supply Range | 2.7 V to 5.25 V |
| Temperature Range | −40°C to +105°C |
| Package Type | 10-lead LFCSP (3mm x 3mm) |
| Analog Input Channels | 1 differential input |
| Gain | 1 |
| Settling Time | 24 ms |
| Interface | 2-wire serial (read-only device) |
Key Features
- Low power consumption: 135 μA in active mode and 5 μA in power-down mode.
- On-chip oscillator for internal clock generation.
- Dedicated pins for control, ensuring ease of use.
- Includes status bits for data validity confirmation during serial transfer.
- Single differential analog input channel with a gain of 1.
- Immunity to noisy environments due to Σ-Δ architecture.
- Pin-programmable power-down and reset functions.
Applications
The AD7170 is ideal for various applications, including:
- Sensor measurement systems: The device's high resolution and immunity to noise make it suitable for precise sensor measurements.
- Industrial and process-control applications: Its robust design and low power consumption are beneficial in industrial settings.
- Temperature measurement systems: It can be used in temperature measurement systems, such as those involving thermistors.
- Portable and battery-operated products: The low power consumption makes it an excellent choice for devices that require long battery life.
Q & A
- What is the resolution of the AD7170?
The AD7170 has a resolution of 12 bits. - What is the typical power consumption of the AD7170?
The AD7170 consumes 135 μA in active mode and 5 μA in power-down mode. - What is the output data rate of the AD7170?
The output data rate of the AD7170 is 125 Hz. - What is the temperature range of the AD7170?
The AD7170 operates within a temperature range of −40°C to +105°C. - What type of package is the AD7170 available in?
The AD7170 is available in a 10-lead LFCSP package (3mm x 3mm). - How many analog input channels does the AD7170 have?
The AD7170 has one differential analog input channel. - What is the gain of the AD7170?
The gain of the AD7170 is 1. - What is the settling time of the AD7170?
The settling time of the AD7170 is 24 ms. - What type of interface does the AD7170 use?
The AD7170 uses a 2-wire serial interface (read-only device). - Is the AD7170 suitable for noisy environments?
Yes, the AD7170 is more immune to noisy environments due to its Σ-Δ architecture.
