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Analog Devices Inc. ADPD1080WBCPZR7
- Part No.:
- ADPD1080WBCPZR7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Sensor and Detector Interfaces
- Package:
- 28-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADPD1080WBCPZR7.pdf
- Description:
- OPTICAL AFE FOR HEALTH MONITORIN
- Quantity:
- Payment:
- Shipping:
Inventory:1,424
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Product details
Overview
ADPD1080WBCPZR7 from Analog Devices is a photometric front-end IC designed for optical biosensing in wearable and clinical systems. It integrates a 14-bit ADC, 20-bit burst accumulator, three 370 mA LED drivers, ambient-light-rejecting AFE, and I²C interface - enabling high-SNR PPG/SpO₂ measurements without optical filters. Its automotive-grade −40°C to +105°C operation supports robust health monitoring in demanding environments.
For engineers reviewing the ADPD1080WBCPZR7 datasheet, ADPD1080WBCPZR7 pinout, ADPD1080WBCPZR7 application, or ADPD1080WBCPZR7 equivalent, key selection criteria include its 27-bit accumulated data depth per read, 0.122 Hz–2000 Hz flexible sampling, 1.8 V dual-supply operation, WLCSP-16 package compatibility, and integrated synchronous detection for ambient light rejection.
Technical Context
The ADPD1080WBCPZR7 implements dual time-slot synchronous detection with configurable LED pulse timing (1–255 pulses/sample), enabling ambient light cancellation via time-domain separation rather than analog filtering. Its AFE includes programmable transimpedance amplifiers (25 kΩ–200 kΩ), ±1 integrator, bandpass filter, and PDC (photodiode cathode) voltage control per time slot.
It operates with a 32 kHz internal state machine clock, supports I²C at up to 0.4 Mbps, and delivers up to 78.3 dB saturation SNR (25 kΩ TIA, 3 µs LED pulse). The device uses on-chip sample-to-sample accumulation and FIFO buffering to reduce host processor load during continuous PPG acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 14-bit per pulse; 20-bit per sample (64–255 pulses); 27-bit per data read (with on-chip accumulation) - enables high dynamic range without external DSP. |
| LED Drive Capability | Three independent 370 mA peak current drivers with programmable slew rate (1400 mA/µs max) - supports high-intensity, short-pulse illumination for motion-robust PPG. |
| Sampling Frequency Range | 0.122 Hz to 2000 Hz (Time Slot A only); up to 1600 Hz with both slots - accommodates slow HRV analysis and fast pulse waveform capture. |
| Operating Temperature | −40°C to +105°C - qualified for automotive-grade reliability in body-worn medical and industrial monitoring applications. |
| Supply Voltage | 1.7 V to 1.9 V (AVDD/DVDD) - low-voltage operation reduces power consumption and simplifies battery-powered system design. |
| Ambient Rejection | Integrated synchronous detection with dual time-slot architecture - eliminates need for optical bandpass filters or DC cancellation circuitry. |
| Interface | I²C (1.8 V level, 0.4 Mbps max) - enables direct connection to microcontrollers with minimal GPIO overhead and no SPI hardware dependency. |
Pinout & Package
ADPD1080WBCPZR7 is housed in a 16-ball, 2.46 mm × 1.4 mm Wafer-Level Chip Scale Package (WLCSP) with 0.4 mm pitch. The package exposes a thermal pad connected to LGND for enhanced thermal dissipation in compact wearable layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PD1–PD5 | Photodiode anode inputs | Five analog current-input pins supporting up to five photodiodes; each connects to dedicated TIA path with programmable gain and integration window. |
| LEDX1–LEDX3 | LED driver outputs | Three high-current, slew-rate-controlled outputs driving LEDs directly; support independent timing and amplitude per channel. |
| PDC | Photodiode cathode bias | Configurable voltage output (0 V to 1.8 V) per time slot - sets reverse bias for optimal photodiode linearity and speed. |
| SCL / SDA | I²C serial interface | Standard 1.8 V I²C bus pins for configuration, control, and data readout; support multi-drop addressing and interrupt-driven polling. |
| GPIO0 / GPIO1 | General-purpose I/O | Programmable interrupt outputs or clock sources; used for synchronization with external sensors (e.g., ECG) or system wake-up signaling. |
| AVDD / DVDD | Analog & digital supplies | Separate 1.8 V supplies decoupled internally - minimize digital noise coupling into sensitive analog signal chain. |
| AGND / DGND / LGND | Analog, digital, LED grounds | Isolated ground domains prevent return-path crosstalk between LED switching noise and photodiode signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| 20-bit burst accumulator | Enables oversampling across 64–255 LED pulses per sample - improves effective resolution and SNR without increasing host data bandwidth. |
| On-chip sample-to-sample accumulator (27-bit) | Reduces host MCU processing load by performing real-time averaging in hardware - ideal for low-power wearable firmware architectures. |
| Flexible LED pulse timing (1–255 pulses) | Allows trade-off between SNR and power: longer pulse trains increase signal averaging while maintaining sub-millisecond total illumination time. |
| Programmable TIA feedback (25–200 kΩ) | Supports wide range of photodiode capacitances (<100 pF) and responsivities - enables optimization for green, red, or IR wavelengths. |
| Automotive qualification (AEC-Q100 Grade 2) | Validated for −40°C to +105°C operation with full parametric performance - suitable for medical devices requiring extended environmental robustness. |
Applications
| Wearable Heart Rate Monitoring | Clinical SpO₂ Measurement |
|---|---|
|
Use Scenario: Continuous wrist-based heart rate and HRV tracking during exercise and sleep. IC Role / Device Role / Timing Role: Primary photometric AFE acquiring synchronized green/red LED pulses and corresponding PPG signals with ambient rejection. Use Value: 27-bit accumulated data depth and 78.3 dB SNR enable reliable pulse detection under motion artifact and variable ambient light - eliminating need for mechanical shielding or optical filters. |
Use Scenario: Non-invasive blood oxygen saturation measurement using red and infrared LED pairs on fingertip or earlobe. IC Role / Device Role / Timing Role: Dual-wavelength optical front end with independent time-slot control for red/IR LED excitation and synchronous photodiode sampling. Use Value: Programmable TIA gain (25–200 kΩ) and dual time-slot architecture allow precise ratio calculation between red/IR AC components - critical for accurate SpO₂ computation. |
| Industrial Vital Sign Sensing | Automotive Driver Monitoring |
|
Use Scenario: Contactless respiration and pulse monitoring in industrial safety helmets or smart workwear. IC Role / Device Role / Timing Role: Low-power optical sensor hub interfacing with multiple photodiodes and LEDs across varying skin-tone conditions. Use Value: −40°C to +105°C operating range and 0.122 Hz minimum sampling support long-duration, battery-operated deployments in uncontrolled thermal environments. |
Use Scenario: In-cabin driver drowsiness and attention monitoring via forehead PPG and ambient light compensation. IC Role / Device Role / Timing Role: Automotive-qualified AFE providing robust optical sensing despite cabin temperature swings and dashboard glare. Use Value: Integrated ambient rejection and AEC-Q100 Grade 2 qualification ensure stable performance under rapidly changing lighting (sunlight → tunnel) and thermal stress - meeting OEM functional safety expectations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photometric front-end applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADPD1081WBCPZR7 | SPI-only interface; identical AFE, LED drivers, and timing core - differs only in digital interface and ball count (17-ball WLCSP). | Requires SPI-capable host MCU; not compatible with I²C-only systems. Same optical performance and automotive qualification. | Select when host platform lacks I²C resources or requires deterministic SPI timing for synchronized multi-sensor acquisition. |
| MAX30102 | Integrated red/IR LED and photodiode; 16-bit ADC; no burst accumulator; fixed 25 mA LED drive; no dual time-slot ambient rejection. | Limited to basic PPG; unsuitable for high-SNR SpO₂ or motion-robust clinical use due to absence of synchronous detection and lower resolution. | Choose only for cost-sensitive consumer wearables where ambient rejection and >20-bit resolution are not required. |
Compared with ADPD1080WBCPZR7, ADPD1081WBCPZR7 offers identical analog performance but mandates SPI infrastructure, whereas MAX30102 sacrifices resolution, ambient rejection, and configurability for integration and cost - making ADPD1080WBCPZR7 the sole option for automotive-grade, filterless, high-fidelity optical biosensing.
Availability
ADPD1080WBCPZR7 is available at Aetrix Electronics and suitable for wearable health monitors, clinical SpO₂ devices, and automotive driver monitoring systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for ADPD1080WBCPZR7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADPD1080WBCPZR7 belongs to Analog Devices' photometric front-end product line, engineered specifically for ultra-low-noise, ambient-resilient optical biosensing in space-constrained, battery-powered medical and automotive applications.
FAQ
What is the primary function of the ADPD1080WBCPZR7 in a PPG system?
The ADPD1080WBCPZR7 serves as the complete photometric analog front end in PPG systems, integrating LED drivers, transimpedance amplifiers, 14-bit ADC, 20-bit burst accumulator, and I²C interface. It acquires optical signals from photodiodes, rejects ambient light via dual time-slot synchronous detection, and outputs high-resolution digital data - all within a single 16-ball WLCSP. Its design eliminates external filtering and analog signal conditioning, making ADPD1080WBCPZR7 ideal for compact, low-power biosensors.
Does the ADPD1080WBCPZR7 support both red and infrared LED wavelengths for SpO₂ measurement?
Yes, the ADPD1080WBCPZR7 supports dual-wavelength SpO₂ measurement through its dual time-slot architecture and three independent LED drivers (LEDX1–LEDX3). Users can assign red and IR LEDs to separate time slots (e.g., Time Slot A for red, Time Slot B for IR), enabling synchronous, ambient-rejecting acquisition of both channels. Its programmable TIA gain (25–200 kΩ) and 27-bit accumulated output provide the precision needed for accurate AC/DC ratio calculation - a core requirement of ADPD1080WBCPZR7-based SpO₂ implementations.
What package type and pin count does the ADPD1080WBCPZR7 use?
The ADPD1080WBCPZR7 uses a 16-ball, 2.46 mm × 1.4 mm Wafer-Level Chip Scale Package (WLCSP) with 0.4 mm pitch. This ultra-compact package features five photodiode anode inputs (PD1–PD5), three LED driver outputs (LEDX1–LEDX3), dedicated PDC (photodiode cathode bias), I²C interface (SCL/SDA), two GPIOs, and segregated analog/digital/LED ground domains. Its small footprint and thermal pad (LGND) make ADPD1080WBCPZR7 suitable for space-constrained wearable PCBs.
How does the ADPD1080WBCPZR7 achieve ambient light rejection without optical filters?
The ADPD1080WBCPZR7 achieves ambient light rejection through hardware-based synchronous detection using dual time-slot operation: one slot captures LED-driven signal + ambient, and the other captures ambient-only signal. By subtracting the latter from the former in the digital domain, it cancels modulated and DC ambient interference - eliminating dependence on optical bandpass filters or external DC cancellation circuitry. This method is implemented entirely within ADPD1080WBCPZR7's analog and timing core, delivering consistent rejection across lighting conditions without calibration drift.
Is the ADPD1080WBCPZR7 qualified for automotive applications?
Yes, the ADPD1080WBCPZR7 is explicitly qualified for automotive use, with an extended operating temperature range of −40°C to +105°C and compliance to AEC-Q100 Grade 2 requirements. Its datasheet specifies automotive-grade performance across all electrical parameters in this range, including LED driver stability, ADC accuracy, and I²C timing. This makes ADPD1080WBCPZR7 suitable for driver monitoring, cabin vital sign sensing, and other in-vehicle health applications where thermal resilience and long-term reliability are mandatory.
ADPD1080WBCPZR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 28-WFQFN Exposed Pad, CSP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Front End
- Input Type:
- Photodiode
- Output Type:
- I2C
- Current - Supply:
- 184 µA
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-LFCSP-WQ (4x4)
ADPD1080WBCPZR7 FAQ
1.How can I place an order for ADPD1080WBCPZR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADPD1080WBCPZR7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADPD1080WBCPZR7 reliable?
The price and inventory of ADPD1080WBCPZR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADPD1080WBCPZR7 is usually 5 days.
3.What payment methods are accepted for ADPD1080WBCPZR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADPD1080WBCPZR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADPD1080WBCPZR7?
ADPD1080WBCPZR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADPD1080WBCPZR7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADPD1080WBCPZR7?
For technical support, including ADPD1080WBCPZR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADPD1080WBCPZR7 requirements.
6.How does Aetrix verify that ADPD1080WBCPZR7 is sourced from the original manufacturer or authorized distributors?
All ADPD1080WBCPZR7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADPD1080WBCPZR7 meets industry standards.
7.What is the process for return or replacement of ADPD1080WBCPZR7?
All ADPD1080WBCPZR7 units undergo pre-shipment inspection (PSI). If there is an issue with ADPD1080WBCPZR7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADPD1080WBCPZR7 part is unused and in its original packaging.
Return procedure for ADPD1080WBCPZR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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