Overview
The ADPD1080BCPZR7, produced by Analog Devices Inc., is a highly efficient photometric front end designed for various optical sensing applications. This device integrates a 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator, enabling precise measurement of optical signals. It features flexible light emitting diode (LED) drivers and synchronous detection capabilities, making it suitable for applications requiring accurate optical measurements.
The ADPD1080BCPZR7 operates over a 1.8 V I2C interface and is available in a 28-lead, 4 mm × 4 mm LFCSP package. It is designed to work with low capacitance photodiodes (<100 pF) for optimal performance and can be used with any LED. The device is also qualified for automotive applications and offers low power operation, making it versatile for different use cases.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | −40 | 85 | °C | |
| Storage Range | −65 | 150 | °C | |
| Power Supply Voltage (VDD) | 1.7 | 1.8 | 1.9 | V |
| Current Consumption (VDD Supply Current) | 258 µW | 75 µW | ||
| Resolution | 14-bit ADC | |||
| Burst Accumulator | 20-bit | |||
| Sampling Frequency | 0.122 Hz | 2700 Hz | ||
| Interface | I2C | |||
| Package Type | 28-lead LFCSP (4 mm × 4 mm w/ EP) |
Key Features
- Integrated 14-bit analog-to-digital converter (ADC) and 20-bit burst accumulator.
- Flexible light emitting diode (LED) drivers with up to 370 mA peak current.
- Ambient light rejection capability without the need for photodiode optical filters or dc cancellation circuitry.
- Low power operation with current consumption as low as 258 µW.
- Flexible sampling frequency ranging from 0.122 Hz to 2700 Hz.
- SPI or I2C interface for data output and functional configuration.
- Qualified for automotive applications.
- Compatible with low capacitance photodiodes (<100 pF) for optimal performance.
Applications
- Wearable health and fitness monitors.
- Clinical measurements, such as SpO2.
- Industrial monitoring.
- Background light measurements.
- Motion detection and long range proximity/presence detection.
Q & A
- What is the primary function of the ADPD1080BCPZR7?
The ADPD1080BCPZR7 is a photometric front end that stimulates an LED and measures the corresponding optical return signal, integrating a 14-bit ADC and a 20-bit burst accumulator.
- What interfaces does the ADPD1080BCPZR7 support?
The ADPD1080BCPZR7 supports a 1.8 V I2C interface.
- What is the operating temperature range of the ADPD1080BCPZR7?
The operating temperature range is from −40°C to 85°C.
- What is the power supply voltage range for the ADPD1080BCPZR7?
The power supply voltage range is from 1.7 V to 1.9 V.
- What is the typical current consumption of the ADPD1080BCPZR7?
The typical current consumption is around 258 µW.
- What are the key applications of the ADPD1080BCPZR7?
Key applications include wearable health and fitness monitors, clinical measurements, industrial monitoring, and background light measurements.
- Does the ADPD1080BCPZR7 require optical filters for ambient light rejection?
No, the ADPD1080BCPZR7 does not require optical filters for ambient light rejection.
- What is the sampling frequency range of the ADPD1080BCPZR7?
The sampling frequency range is from 0.122 Hz to 2700 Hz.
- What package types are available for the ADPD1080BCPZR7?
The ADPD1080BCPZR7 is available in a 28-lead LFCSP (4 mm × 4 mm w/ EP) package.
- Is the ADPD1080BCPZR7 qualified for automotive applications?
