Overview
The ADPD4101BCBZR7, produced by Analog Devices Inc., is a multimodal sensor front end designed to support a wide range of sensor measurements. This device is part of the ADPD4100/ADPD4101 family, which operates as a complete sensor front end, capable of stimulating up to eight light emitting diodes (LEDs) and measuring the return signal on up to eight separate current inputs. It features flexible LED signaling and synchronous detection, making it versatile for various healthcare, industrial, and consumer applications.
Key Specifications
| Parameter | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Temperature Range (Operating) | −40 | +85 | °C | ||
| Temperature Range (Storage) | −65 | +150 | °C | ||
| Power Supply Voltage | Continuous | 1.8 V | V | ||
| Peak VDD Supply Current (1.8 V) | 1-Channel Operation | 3.8 mA | |||
| Standby Mode Current | 0.20 µA | ||||
| LED Peak Current per Driver | LED pulse enabled | 1.5 mA | 200 mA | 208 mA | |
| LED Period | AFE width = 4 µs | 11 µs | |||
| Sampling Rate | Single time slot | ||||
| Data Path Width | 32 Bits | ||||
| FIFO Size | 512 Bytes |
Key Features
- Multi-Modal Sensor Capabilities: Supports various sensor measurements including photoplethysmography (PPG), electrocardiography (ECG), electrodermal activity (EDA), impedance, capacitance, temperature, gas detection, smoke detection, and aerosol detection.
- Flexible LED Signaling: Stimulates up to eight LEDs and measures the return signal on up to eight separate current inputs.
- Synchronous Detection: Rejects signal offsets and corruption from asynchronous modulated interference, eliminating the need for optical filters or externally controlled dc cancellation circuitry.
- Interface Options: Utilizes an I2C interface for the ADPD4101 or a serial port interface (SPI) for the ADPD4100.
- Low Power Consumption: Offers low power modes, including a standby mode current of 0.20 µA.
- Compact Package: Available in a 3.11 mm × 2.14 mm, 0.4 mm pitch, 33-ball WLCSP package.
Applications
- Healthcare Monitoring: Blood pressure estimation, SpO2, hydration, body composition, and home patient monitoring.
- Industrial Monitoring: CO, CO2, smoke, and aerosol detection.
- Consumer Applications: Various consumer health and wellness devices.
- Biopotential Measurements: ECG, EDA, and other biopotential electrode measurements.
- Environmental Monitoring: Gas detection, smoke detection, and aerosol detection.
Q & A
- What is the primary function of the ADPD4101BCBZR7?
The ADPD4101BCBZR7 operates as a multimodal sensor front end, supporting various sensor measurements such as PPG, ECG, EDA, and more.
- What types of interfaces does the ADPD4101BCBZR7 support?
The ADPD4101BCBZR7 supports an I2C interface.
- How many LEDs can the ADPD4101BCBZR7 stimulate?
The device can stimulate up to eight LEDs.
- What is the operating temperature range of the ADPD4101BCBZR7?
The operating temperature range is from −40°C to +85°C.
- What is the standby mode current of the ADPD4101BCBZR7?
The standby mode current is 0.20 µA.
- What package options are available for the ADPD4101BCBZR7?
The device is available in a 3.11 mm × 2.14 mm, 0.4 mm pitch, 33-ball WLCSP package.
- What are some common applications of the ADPD4101BCBZR7?
Common applications include healthcare monitoring, industrial monitoring, and consumer health and wellness devices.
- How does the ADPD4101BCBZR7 handle ambient light interference?
The device rejects signal offsets and corruption from asynchronous modulated interference, typically from ambient light, eliminating the need for optical filters or externally controlled dc cancellation circuitry.
- What is the data path width of the ADPD4101BCBZR7?
The data path width is 32 bits.
- What is the FIFO size of the ADPD4101BCBZR7?
The FIFO size is 512 bytes.
