Crocus’ XtremeSense® TMR CT81xx Sensors: a Combination of High Sensitivity, Low Power and Small Footprint for Medical Wearables Applications
Sensors with the ability to measure magnetic fields are fast gaining traction in remote patient- monitoring applications. Hermetically sealed, battery- powered wearable medical applications are becoming increasingly common as technology quickly advances.
The seal prevents the entry of moisture and other contaminants, critical for medical devices implanted in the body or in contact with bodily fluids. Moisture and contaminants can cause failure in a wide variety of these devices, including pacemakers, defibrillators, insulin pumps, glucose monitors, electrocardiogram (EKG) monitors, and even contact lenses.
The functionality of medical wearables requires a combination of leading-edge technology and safety requirements. Activating sensors must have high sensitivity, low power consumption and a small footprint.
The Advantages of TMR sensors
Tunnel Magnetoresistance (TMR)-based magnetic switches are ideal for these hermetically sealed, battery-powered devices where minimal current consumption is required. Specifically, the low power consumption of TMR sensors offers a new level of performance compared to existing solutions. This directly translates into guaranteed longer battery life and a smaller battery.
Crocus’ XtremeSense® TMR CT81xx series of sensors are ideal for battery-operated medical wearable devices. In these applications, magnets are used to generate a field, and the high sensitivity of the XtremeSense® TMR sensor enables the use of smaller or lower-cost magnetics while drawing very low supply current (as low as 110 nA). XtremeSense® TMR delivers this sensitivity in a small footprint and at the lowest power consumption on the market. This means long system battery life.
They feature Omnipolar magnetic switches integrated with the TMR sensor and CMOS circuitry, which is able to detect the change of magnetic field and output high and low voltage signals for high accuracy position detection. This means the TMR sensor can be triggered when the magnet is removed to wake up the system from standby mode upon unboxing.
Case Study: CGM Systems
One of the more popular wearable devices are CGM systems, a revolutionary new way to manage diabetes. They feature a small, wireless device worn on the back of the arm or stomach. This device provides continuous glucose monitoring via a low power Bluetooth communication to your smartphone. The system is simple to use, with the small, wireless transmitter sending glucose data directly to a receiver or smartphone app.
This enables the patient to see blood sugar levels in real time and provides alerts and alarms to help them manage their diabetes. The system can connect to the internet via the user’s smart phone, quickly allowing users to share their glucose data with their doctor or other healthcare providers.
These systems demand high sensitivity, a small footprint and extremely low power consumption.
For a leading CGM manufacturer, Crocus CT8132SK sensors were the perfect fit:
The CT8132SK sensors consume very little power (as low as 110 nA), making them ideal for CGM battery-powered applications.
The CT8132SK sensors detect very small magnetic fields, them ideal for applications where small magnet are preferred due to space constraints (0.9mT/0.5mT for Bop/Brp).
The CT8132SK sensors are designed to operate over a wide temperature range, making them ideal for use in wearable devices that are exposed to a variety of environmental shipping conditions.
The CT8132SK sensors are offered in small package options, making them easy to integrate in CGM systems.
In addition, Crocus CT81xx series boast high reliability against harsh environment, shock, vibration, and moisture. Finally, this all comes with a lower total cost of ownership. This unmatched combination of sensitivity, low power and small footprint make the Crocus CT81xx series the ideal choice for today’s increasingly popular medical wearables.
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本文由玄子转载自Crocus Technology News，原文标题为:Medical Wearables，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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Crocus Technology TMR传感器选型指南
目录- Company Profile Isolated Current Sensors Supercharge Sensor Technology XtremeSense TMR
型号- CT426-ASN820MR,CT426-ASN850DR,CT427-HSN865MR,CT220,CT426-HSN850MR,CT433-HSWF65DR,CT8152PC-IL4,CT220FMC-IS5,CT416-HSN820DR,CT417-HSN820,CT8112BK-HS3,CT453,CT452,CT432-HSWF20MR,CT431-HSWF65,CT8122AM-HL4,CT427-ASN865DR,CT43X,CT432-HSWF50DR,CT811X,CT220BMV-IS5,CT427-HSN830MR,CT418-HSN850MR,CT428-HSN830DR,CT110,CT100LW-HS6,CT428-HSN850,CT417-ASN850MR,CT8132BV-HS3,CT432-ASWF65DR,CT8150PC-IS3,CT110PDC-ID6,CT100,CT418-ASN865MR,CT431-HSWF50,CT812X,CT431-HSWF50MR,CT813X,CT427-HSN820MR,CT428-HSN865,CT220FMC-HS5,CT8152PC-HL4,CT452-H00DRTS08,CT433,CT432,CT431,CT310,CT415-ASN820DR,CT418-ASN830MR,CT430,CT8122AM-IL4,CT41X,CT220BMV-HS5,CT450,CT8132BV-IS3,CT431-ASWF65MR,CT433-HSWF30DR,CT110PDC-HD6,CT427-HSN850DR,CT425-ASN850MR,CT427-ASN830DR,CT42X,CT432-ASWF20DR,CT815X,CT220RMC-HS5,CT431-ASWF30DR,CT450-A00MRSN08,CT415,CT8131BV-IL4,CT415-ASN865DR,CT430-HSWF50MR,CT418,CT452-H00MRSN08,CT8150PC-HL4,CT417,CT415-HSN830MR,CT428-HSN820MR,CT452-A00MRTS08,CT416,CT430-ASWF50DR,CT81XX,CT430-ASWF20MR,CT100LW-FS6,CT426-ASN830MR,CT452-H06MRTS08,CT8131BV-HL4,CT220PMC-IS5,CT425,CT432-HSWF30MR,CT415-HSN865MR,CT428,CT427,CT430-ASWF30MR,CT220RMC-IS5,CT415-HSN850DR,CT433-HSWF20DR,CT8112BK-IS3,CT417-ASN865MR,CT426-ASN865MR,CT452-H06DRSN08,CT432-HSWF65MR,CT428-HSN865MR,CT8150PC-IL4,CT310LS-IT8,CT427-ASN820DR,CT432-ASWF30DR,CT453-A00DRSN08,CT430-ASWF65MR,CT428-HSN850DR,CT431-ASWF20DR,CT418-ASN850MR,CT417-ASN830MR,CT220PMC-HS5,CT8112BK-IT3,CT8132BV-HL4,CT415-ASN830DR,CT415-HSN820MR,CT450-H24DRSN08,CT453-A00DRTS08,CT310LS-HD8,CT453-H00DRSN08,CT416-ASN820DR,CT425-HSN820DR,CT417-HSN850MR,CT418-ASN865DR,CT430-HSWF65,CT220PMV-IS5,CT433-ASWF50MR,CT425-HSN830,CT8152PC-HS5,CT426-ASN820DR,CT452-H00DRSN08,CT8132BV-IL4,CT433-HSWF50DR,CT418-ASN830DR,CT428-ASN850MR,CT433-HSWF20MR,CT453-H06DRSN08,CT425-HSN820,CT416-ASN865DR,CT425-ASN850DR,CT430-HSWF30MR,CT220PMV-HS5,CT425-ASN820MR,CT431-ASWF65DR,CT433-HSWF30MR,CT427-HSN850MR,CT452-A00DRTS08,CT416-ASN830DR,CT431-ASWF30MR,CT433-HSWF65MR,CT430-HSWF50,CT415-HSN830DR,CT428-HSN820DR,CT310LS-FD8,CT430-ASWF50MR,CT431-HSWF20,CT425-ASN865MR,CT415-HSN865DR,CT415-ASN850DR,CT452-H06DRTS08,CT430-HSWF65MR,CT110FDC-ID6,CT452-H00MRTS08,CT8132BH-IS3,CT425-ASN830MR,CT415-ASN820MR,CT425-HSN865,CT425-HSN865DR,CT428-HSN865DR,CT426-ASN830DR,CT431-ASWF50DR,CT417-HSN830MR,CT431-ASWF20MR,CT418-HSN820DR,CT453-H06DRTS08,CT415-ASN830MR,CT425-HSN830DR,CT415-HSN820DR,CT426-ASN865DR,CT453-H00MRTS08,CT8152PC-IS5,CT100LW-IS6,CT417-HSN865MR,CT450-H24MRSN08,CT425-HSN850,CT430-HSWF50DR,CT418-ASN820MR,CT432-HSWF50MR,CT8150PC-HS3,CT450-H00DRTS08,CT430-HSWF20MR,CT8132BH-HS3,CT428-ASN830MR,CT431-HSWF30,CT415-ASN865MR,CT110FDC-HD6,CT418-ASN850DR,CT452-A00DRSN08,CT415-HSN820,CT427-ASN850MR,CT417-HSN850DR,CT431-HSWF20DR,CT220RMV-HS5,CT428-ASN865MR,CT425-HSN820MR,CT100LW-ID6,CT433-HSWF50MR,CT453-A00MRSN08,CT110FDV-ID6,CT417-ASN865DR,CT432-ASWF50MR,CT416-ASN820MR,CT417-HSN820MR,CT426-HSN850,CT425-HSN850DR,CT416-ASN850DR,CT110RDV-ID6,CT425-ASN820DR,CT426-HSN865DR,CT433-ASWF65MR,CT450-H06MRSN08,CT426-HSN820,CT130LN-HD6,CT8111DT-IS3,CT430-ASWF20DR,CT425-ASN865DR,CT428-ASN850DR,CT220RMV-IS5,CT426-HSN830DR,CT100LW-HD6,CT428-ASN820MR,CT431-HSWF65DR,CT433-ASWF30MR,CT110FDV-HD6,CT416-ASN865MR,CT417-ASN820DR,CT426-HSN830,CT418-HSN865DR,CT415-HSN830,CT110RDV-HD6,CT416-HSN850MR,CT418-HSN830DR,CT453-H06MRTS08,CT110PDV-ID6,CT430-HSWF65DR,CT415-HSN865,CT418-HSN865,CT220FMV-IS5,CT8132EK-IS3,CT425-ASN830DR,CT450-H00DRSN08,CT430-HSWF20,CT415-ASN850MR,CT8111BK-IT3,CT8132SK-IL4,CT450-A00DRTS08,CT415-HSN850,CT430-HSWF30DR,CT431-ASWF50MR,CT431-HSWF30DR,CT416-HSN830MR,CT430-HSWF30,CT8111BK-IS3,CT453-A00MRTS08,CT427-HSN820,CT418-HSN820MR,CT453-H00MRSN08,CT110PDV-HD6,CT426-HSN865,CT310LS-ID8,CT220FMV-HS5,CT430-HSWF20DR,CT417-HSN830DR,CT310LS-AT8,CT100LW-FD6,CT418-ASN820DR,CT450-H12MRSN08,CT433-ASWF50DR,CT425-HSN865MR,CT418-HSN850,CT417-HSN865DR,CT450-H00MRTS08,CT453-H00DRTS08,CT426-HSN820DR,CT425-HSN830MR,CT8111BK-HS3,CT433-ASWF20MR,CT8111BH-IS3,CT417-ASN850DR,CT432-ASWF20MR,CT433-ASWF65DR,CT418-HSN820,CT416-HSN820,CT417-ASN820MR,CT428-ASN830DR,CT426-HSN850DR,CT310LS-HT8,CT416-HSN820MR,CT427-HSN865DR,CT432-ASWF50DR,CT416-HSN830,CT432-HSWF20DR,CT433-ASWF30DR,CT110RDC-HD6,CT427-HSN830,CT220BMC-HS5,CT426-HSN865MR,CT418-HSN830,CT8132SL-HS3,CT417-HSN820DR,CT428-ASN865DR,CT8122AM-HS3,CT425-HSN850MR,CT427-ASN820MR,CT427-ASN850DR,CT428-HSN830MR,CT418-HSN850DR,CT427-HSN830DR,CT8111BH-HS3,CT427-HSN865,CT8131BV-IS3,CT426-HSN830MR,CT8111DK-IS3,CT8132EK-HS3,CT427-ASN830MR,CT416-HSN865MR,CT110RDC-ID6,CT8132SK-HL4,CT427-HSN820DR,CT416-HSN850,CT418-HSN830MR,CT427-HSN850,CT431-HSWF50DR,CT220BMC-IS5,CT8132DM-HS3,CT416-HSN850DR,CT431-HSWF20MR,CT8122AM-IS3,CT8132SL-IS3,CT427-ASN865MR,CT428-ASN820DR,CT418-HSN865MR,CT416-ASN830MR,CT417-HSN865,CT8132SK-HS3,CT8131BV-HS3,CT8111DT-HS3,CT452-H06MRSN08,CT8112DK-IS3,CT430-ASWF65DR,CT416-HSN865,CT431-HSWF30MR,CT8111DK-HS3,CT8112DT-IS3,CT310LS-FT8,CT8122AN-HS3,CT431-HSWF65MR,CT8132BL-HS3,CT8132DM-IS3,CT453-H06MRSN08,CT417-HSN850,CT450-H06DRSN08,CT416-HSN830DR,CT
Crocus Technology TMR位置传感器选型表
先进的磁传感器产品基于其创新和专利的XtremeSense®TMR技术，可在宽温度范围内实现最高灵敏度、最低功耗和最小尺寸。这些磁传感器不仅具有高磁感应性能，而且在广泛的应用范围内具有可靠性、小占地面积、电流和热隔离、高频操作和低功耗
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产品型号
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品类
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Polarity
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Min. Supply Voltage (V)
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Max. Supply Voltage (V)
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Bₒₚ (mT)
|
Bᵣₚ (mT)
|
Sampling Frequency (Hz)
|
Average Supply Current @ VDD = 3.3V (µA)
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Typ. Sensitivity (mV/V/mT)
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Max. Lineairty Error (% FS)
|
Max. Corrected Angular Error (°)
|
Typ. Offset Voltage (mV/V)
|
Min. Field (mT)
|
Max. Field (mT)
|
Output Type
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TCS (ppm/°C)
|
Temperature Range (°C)
|
Package Type
|
See Inventory
|
|
CT8111BK-IS3
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数字开关
|
Unipolar
|
1.7V
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5.5V
|
3mT
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2mT
|
10Hz
|
0.19µA
|
0
|
0
|
0
|
0
|
0
|
200mT
|
Open Drain
|
0
|
-40°C to +85°C
|
SOT23-3
|
See CT8111BK-IS3
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选型表 - Crocus Technology 立即选型
TMR与分流传感器：表格如何转变供应链和精度问题使TMR成为安全的赌注
描述- 本文探讨了传统分流式传感器与隧道磁阻式（TMR）传感器的对比。随着精度要求的提高，传统分流式传感器在成本效益上逐渐失去优势。TMR传感器因其内置隔离、更少的组件和更简单的供应链响应，提供了更安全、更精确的解决方案。文章还比较了霍尔效应传感器与分流式传感器的优缺点，指出TMR传感器在低功耗、高信号噪声比、更好的线性度和无需额外磁通集中器结构方面具有显著优势。
Crocus Technology位置传感器选型表
产品具有高灵敏度,可使用更大的气隙或更小尺寸/更低成本的磁体，可吸收低至110nA 的电源电流,最大限度电源电压 5.5(V)，是一款基于番红花科技的极限感知® TMR 技术的一维线性 TMR 场传感器,最大限度电源电压 5.5(V)
|
产品型号
|
品类
|
Sensor Type
|
Polarity
|
Min. Supply Voltage (V)
|
Max. Supply Voltage (V)
|
Bₒₚ (mT)
|
Bᵣₚ (mT)
|
Sampling Frequency (Hz)
|
Average Supply Current @ VDD = 3.3V (µA)
|
Typ. Sensitivity (mV/V/mT)
|
Max. Lineairty Error (% FS)
|
Max. Corrected Angular Error (°)
|
Typ. Offset Voltage (mV/V)
|
Min. Field (mT)
|
Max. Field (mT)
|
Output Type
|
TCS (ppm/°C)
|
Temperature Range (°C)
|
Package Type
|
|
CT8111BK-IS3
|
Position Sensors
|
Digital Switch
|
Unipolar
|
1.7
|
5.5
|
3
|
2
|
10
|
0.19
|
0
|
0
|
0
|
0
|
0
|
200
|
Open Drain
|
0
|
-40 to +85
|
SOT23-3
|
选型表 - Crocus Technology 立即选型
全球领先的TMR技术开发者——Crocus Technology
Crocus Technology作为TMR技术的全球领导技术开发者，专注于TMR技术的研究开发，授予超过300项专利，超过450个专利备案。和全球顶尖的晶圆厂、封测厂合作，为全球领先的工业，汽车和消费企业提供最先进的隧道磁阻（TMR）传感器技术方案的供应商，为客户在磁场定位和电流检测的应用市场中贡献顶尖的技术和商务服务。
交付量超过1亿台，Crocus的CMOS集成XtremeSense®TMR传感器因TMR技术设计获得市场青睐和应用
由于其高性能技术、关键设计优势和迅速的市场采用，迅速实现1亿台的出货量。XtremeSense TMR技术使客户能够毫无妥协地开发产品，充分利用高灵敏度、纳安级功耗、高带宽、高精度、温度稳定性和一流信噪比等优势。
Crocus Technology‘s CT310 XtremeSense® Sensor 2D TMR Angular Sensor with Angular Error less than 0.30°
The CT310 is a 2D TMR Angular Sensor by Crocus Technology. It has excellent performance which helps it to achieve excellent stability over the full temperature range. It operates with a supply voltage range from 1.0 V to 5.5 V.Product features and performance·
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