AS7030B - PPG/ECG Biosensor Module I2C | ams OSRAM | Wearables
N.º da peça: AS7030B ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $6.9 | $6,90 |
| 10 | $6.25 | $62,50 |
| 100 | $5.6 | $560,00 |
| 500 | $5.1 | $2.550,00 |
| 1.000 | $4.65 | $4.650,00 |
AS7030B Visão geral
A biometric sensor module is a device that converts physiological signals, such as blood-volume pulse and cardiac bioelectric potentials, into digital data for health-monitoring systems. Within the sensor hierarchy, the AS7030B sits under optical and biometric sensors, spanning PPG sensors, ECG analog front ends, GSR measurement, and skin-temperature sensing in a single integrated solution for wearable electronics.
Key features include a low-noise analog front end for ECG signal acquisition, a fully integrated optical solution with synchronized LED drive and photodiode readout, a synchronous demodulator for ambient-light rejection, and an infrared emitter with dedicated photodiode enabling a proximity function. The device also supports GSR (galvanic skin resistivity) measurement and external NTC temperature sensor connection, giving designers four biometric modalities from one footprint.
Architecturally, the AS7030B integrates LED drivers, a low-noise transimpedance chain, a synchronous demodulator, and digital control logic on one die, reducing external component count and BOM cost. Time-multiplexed optical measurement with demodulation suppresses DC ambient interference, which is essential for wrist-worn PPG accuracy during motion and daylight exposure.
Typical applications include fitness bands, smart watches, sports watches, and smart patches, where its low-power design supports multi-day intervals between battery recharges. It is also suited to clinical-grade HRV recording and cuffless vital-sign prototyping via the AS7030B_EVALKIT_USB and AS7030B_EVALKIT_BT evaluation kits.
Design considerations: the ams OSRAM recommended supply scheme uses a clean LDO-fed rail (for example a 4.75V LDO as in the official evaluation kit design); noise on VDD directly degrades ECG and PPG signal quality, so careful power filtering is required.
This page synthesizes distributor availability data, the official ams OSRAM datasheet, evaluation-kit documentation, and practical design notes not found in the datasheet alone.
Alternativas drop-in para AS7030B — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com AS7030B (mesmo formato e footprint).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
AS7030B-COLM
✅ Drop-In✓ Em estoque
$1.95 / unidade
Ver ficha técnica →AS7030B Classificações máximas e características elétricas
| Product Type | Vital-sign biosensor module (PPG + ECG) |
| Measurement Functions | PPG (HRM/HRV/SpO2), ECG, GSR, skin temperature (via external NTC) |
| Communication Interface | I2C |
| Optical Elements | Integrated LEDs and photodiodes (multi-wavelength PPG) plus IR emitter with dedicated photodiode for proximity |
| Analog Front End | Low-noise ECG AFE with synchronous demodulator |
| Proximity Function | Yes (IR emitter + dedicated photodiode) |
| Ambient Light Rejection | Synchronous demodulation |
| Package / Ordering Code | AS7030B-COLM (module) |
| Tipo de montagem | Surface Mount |
| Typical Applications | Fitness bands, smart watches, sports watches, smart patches |
| Evaluation Kits | AS7030B_EVALKIT_USB, AS7030B_EVALKIT_BT |
Guia de Configuração de Pinos do AS7030B as7030b-colm (module)
Configuração de pinos para AS7030B (pacote as7030b-colm (module)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para AS7030B.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
AS7030B é adequado para 6 aplicaçãos: Smartwatch Heart-Rate Monitoring, Fitness Band Activity Tracking, Clinical-Grade ECG Wearables and Smart Patches, SpO2 Pulse-Oximeter Integration, GSR and Stress Monitoring Devices, Proximity and Wear-Detection.
Smartwatch Heart-Rate Monitoring
The AS7030B fits smartwatch heart-rate monitoring because its integrated PPG engine samples light modulated by blood vessels as they expand and contract with each heartbeat, delivering HRM and HRV data without external optics. Because the LED drivers, photodiodes, and synchronous demodulator are on one die, the optical path is pre-aligned, reducing mechanical tolerance issues common with discrete PPG designs. In a typical wrist-worn topology, the module sits under the watch glass against the skin, pulsing its LEDs and reading back-photocurrent while the IR proximity channel confirms skin contact before starting a measurement session. The low-power design directly supports the multi-day recharge intervals that smartwatch users expect, per the ams OSRAM datasheet.
Recomendado
Fitness Band Activity Tracking
For fitness bands, the AS7030B provides continuous optical heart-rate tracking during workouts in a small footprint that suits narrow wristband PCBs. The synchronous demodulator rejects DC ambient interference, which is the dominant error source when a band is worn outdoors, allowing pulse-rate readings to remain valid under daylight exposure. Its multi-wavelength optical solution supports SpO2 estimation in addition to heart rate, letting a single sensor serve both workout intensity and recovery metrics. Power efficiency matters because fitness bands run for days between charges; the AS7030B's low-power architecture, cited by ams OSRAM as a key design goal, keeps the sensor's share of the energy budget small. The IR emitter and dedicated photodiode also add wear-detection so tracking pauses automatically when the device is removed.
Recomendado
Clinical-Grade ECG Wearables and Smart Patches
The AS7030B's embedded ECG channel with low-noise analog front end makes it suitable for smart patches and chest- or arm-placed monitors that record diagnostic-style single-lead ECG alongside PPG. ECG captures the bioelectric potentials generated by the heart and is the reference standard for cardiac rhythm assessment, so combining it with PPG in one module lets a patch cross-validate pulse rate against electrical activity. Designers should feed the module from a clean LDO rail, as in the ams OSRAM evaluation-kit reference design, because microvolt-level ECG signals are sensitive to supply ripple. The I2C output streams samples to the patch MCU, which can run arrhythmia-detection firmware locally or upload raw waveforms over BLE for clinician review.
Recomendado
SpO2 Pulse-Oximeter Integration
Because photoplethysmography is the underlying method for SpO2 measurement, the AS7030B's multi-wavelength PPG engine can be used for peripheral oxygen saturation estimation in wearable and patch products. The module's integrated optics ensure consistent emitter-photodiode geometry, which is critical because SpO2 computation depends on the ratio of absorbed red and infrared light and is sensitive to optical misalignment. The synchronous demodulator isolates the pulsatile (AC) component of the photocurrent from the large DC ambient component, improving ratio-of-ratios accuracy in ambulatory conditions. Designers should account for skin-tone, motion, and perfusion variability in their calibration firmware, and validate against a reference fingertip oximeter during development using the USB evaluation kit.
Recomendado
GSR and Stress Monitoring Devices
The AS7030B doubles as an optical measurement system for GSR (galvanic skin resistivity), enabling stress and arousal tracking in the same module used for heart rate. GSR reflects changes in skin conductance driven by sympathetic nervous system activity, and combining it with HRV data gives stress-algorithm developers two complementary physiological channels. The ams OSRAM-supported implementation is demonstrated on MikroElektronika's ECG/GSR Click board, which pairs the AS7030B with standard host headers for rapid algorithm bring-up. In a wearable, the module's GSR measurement runs alongside PPG sessions scheduled by the host MCU over I2C, allowing duty-cycled stress sampling that preserves battery life. Skin temperature from an attached external NTC sensor adds a third stress-relevant input.
Recomendado
Proximity and Wear-Detection
Beyond vital signs, the AS7030B integrates an infrared emitter with a dedicated photodiode, giving product designers a built-in proximity function for wear detection. In a smartwatch or band, the firmware can poll the proximity channel over I2C before launching a power-hungry PPG session, keeping the optical engine off whenever the device is off-wrist; this materially extends battery life, which aligns with the AS7030B's low-power design goal. The same channel prevents garbage heart-rate readings from being logged when no skin is present, improving data quality in the companion health app. Because the IR elements are inside the module, no external emitter alignment is needed, saving the mechanical design effort that discrete IR proximity solutions typically demand.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para AS7030B — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | AS7030B-COLM | |
|---|---|---|---|
| Package | ams OSRAM module (AS7030B-COLM ordering code) | Identical module package | |
| Brand | ams-OSRAM AG | ams-OSRAM AG | |
| Measurement Channels | PPG + ECG + GSR + temperature (NTC header) | PPG + ECG + GSR + temperature (NTC header) | |
| Interface | I2C | I2C | |
| Proximity Function | Yes (IR emitter + dedicated photodiode) | Yes (IR emitter + dedicated photodiode) | |
| Supply Approach (reference design) | LDO-fed VDD (TLV702475DBVR 4.75V or single 3.7V LDO, per eval kit) | LDO-fed VDD (TLV702475DBVR 4.75V or single 3.7V LDO, per eval kit) | |
| Target Applications | Fitness bands, smart watches, sports watches, smart patches | Fitness bands, smart watches, sports watches, smart patches | |
| Cross-Brand Drop-In Equivalent | None documented in reviewed web data | N/A - same part | Functional alternative only, NOT pin-compatible (different package/pinout, no GSR) |
Principais diferenciais
- Four biometric modalities in one module (vs MAX86150)
- Integrated optical proximity for wear detection (vs MAX86150)
- Fully integrated, pre-aligned optics (vs Discrete LED + AFE PPG designs)
Notas de projeto
Follow the ams OSRAM evaluation-kit reference power scheme: feed the AS7030B VDD from a dedicated low-noise LDO rather than a shared switching regulator. The official kit design derives the sensor supply from a TLV702475DBVR LDO (4.75V output), with a documented alternative of a single 3.7V-output LDO for sensor power. ECG and PPG signals are in the microvolt-to-millivolt range, so buck-converter ripple appearing on VDD degrades signal quality visibly in the captured waveform. Add local bulk and high-frequency decoupling at the module and keep the LED supply path separate from the sensitive AFE path.
Optical and biometric layout hygiene matter more than raw routing speed. Place the AS7030B at the board edge where it faces the skin window, and keep the optical cavity free of solder-mask or component shadowing. Route ECG electrode traces as short as practical, guard them with ground, and keep them away from LED driver return currents to prevent artifacts. Use a solid ground plane under the module and connect the mechanical skin-contact shield to ground to reduce 50/60 Hz mains pickup in the ECG channel.
A frequent mistake is treating the AS7030B as a simple optical sensor and skipping the proximity gate: always check the IR proximity channel before starting PPG sessions so the system does not record invalid heart-rate data off-wrist. Another pitfall is skipping algorithm-level compensation - SpO2 and GSR results depend on skin tone, contact pressure, temperature, and motion, so firmware filtering and calibration against reference instruments (clinical oximeter, reference ECG) are mandatory before release. Start development on the AS7030B_EVALKIT_USB or AS7030B_EVALKIT_BT rather than jumping straight to custom hardware.
Informações de conformidade
Compliance data was not present in the provided verified web data. Confirm RoHS/REACH status on the official ams OSRAM product page or datasheet before production sourcing.
