Overview
The ADPD1080BCBZR7, produced by Analog Devices Inc., is a highly efficient photometric front end integrated circuit. It features an integrated 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator, designed to work with flexible light emitting diode (LED) drivers. This component stimulates an LED and measures the corresponding optical return signal, providing robust ambient light rejection without the need for optical filters or external dc cancellation circuitry. The ADPD1080BCBZR7 is available in a 16-ball, 2.46 mm × 1.4 mm Wafer Level Chip Scale Package (WLCSP).
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 (CTR = 20 nA/mA) | 75 µW (CTR = 100 nA/mA) | µW | |
| Resolution | 14-bit ADC | |||
| Burst Accumulator | 20-bit | |||
| LED Peak Current Drivers | 3 x 370 mA | |||
| Interface | I2C (1.8 V) | |||
| Package Type | 16-ball WLCSP (2.46 mm x 1.4 mm) |
Key Features
- Integrated 14-bit analog-to-digital converter (ADC) and 20-bit burst accumulator.
- Flexible LED signaling and synchronous detection.
- 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.
- Support for multiple, short LED pulses per optical sample.
- FIFO data operation and on-board sample to sample accumulator enabling up to 27 bits per data read.
- Flexible sampling frequency ranging from 0.122 Hz to 2700 Hz.
- I2C interface (1.8 V) for data output and functional configuration.
- Compatible with any LED and optimal performance with low capacitance photodiode (<100 pF).
Applications
- Wearable health and fitness monitors.
- Clinical measurements, such as SpO2.
- Industrial monitoring.
- Background light measurements.
- Automotive applications (qualified for automotive use).
Q & A
- What is the ADPD1080BCBZR7 used for?
The ADPD1080BCBZR7 is used as a photometric front end, stimulating an LED and measuring the corresponding optical return signal, making it suitable for various applications including wearable health monitors, clinical measurements, and industrial monitoring.
- What is the resolution of the ADC in the ADPD1080BCBZR7?
The ADPD1080BCBZR7 features a 14-bit analog-to-digital converter (ADC).
- How does the ADPD1080BCBZR7 handle ambient light interference?
The ADPD1080BCBZR7 has ambient light rejection capability without the need for photodiode optical filters or dc cancellation circuitry.
- What is the power consumption of the ADPD1080BCBZR7?
The power consumption is as low as 258 µW, depending on the current transfer ratio (CTR).
- What interface does the ADPD1080BCBZR7 use for data output and configuration?
The ADPD1080BCBZR7 uses a 1.8 V I2C interface for data output and functional configuration.
- What is the package type of the ADPD1080BCBZR7?
The ADPD1080BCBZR7 is available in a 16-ball Wafer Level Chip Scale Package (WLCSP) with dimensions of 2.46 mm x 1.4 mm.
- Can the ADPD1080BCBZR7 be used with any LED?
- What is the recommended photodiode capacitance for optimal performance?
- Is the ADPD1080BCBZR7 qualified for automotive applications?
- What are the typical applications of the ADPD1080BCBZR7?
