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NVE will be closed
May 29
for Memorial Day. |
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World’s Smallest Analog Sensor |
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NVE’s industry-standard analog magnetometer sensors just got smaller with
a new TDFN6 version, the AAL004-10E. The new part is the world’s smallest
high-performance analog sensor IC.
The new AAL004-10E is
our smallest analog sensor.
The magnetometers provide a precise output proportional to the applied magnetic
field. Second-generation GMR materials provide extremely low hysteresis and excellent
temperature stability.
The sensors are configured as inherently temperature-compensating Wheatstone bridges:
A Wheatstone bridge configuration
for inherent temperature compensation.
The AAL-subtype uses second-generation GMR technology for exceptional temperature
stability and low hysteresis, making it ideal for low-field sensing.
Key AAL004-10 features include:
• Low fields: linear down to 1.5 Oe
• High sensitivity: 3.5 mV/V/Oe typical
• Low hysteresis: <2%
• Omnipolar output
• –40 to 125°C operating temperature
• Ultraminiature: 2.5 x 2.5 x 0.8 mm TDFN6 package
NVE’s low-field analog sensors are summarized in the following table:
| Low-Field
Magnetometer Sensors |
Part
Number
(click for
detais) |
Linear
Range
(Oe)
|
Typ.
Sens-
itivity
(mV/V/Oe)
|
Max.
Hyster-
esis |
Typ.
Resist-
ance |
Package |
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0.6–3.0
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15
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15%
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2 kΩ
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SOIC8
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1.5–7.5
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4
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15%
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2 kΩ
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MSOP8
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1.5–10.5
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3.5
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2%
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5.5 kΩ
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SOIC8
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***NEW***
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1.5–10.5
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3.5
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2%
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2.2 kΩ
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TDFN6
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Download
datasheet >
All four low-field part types are in stock and available for immediate delivery.
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Recent
Conferences |
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NVE researchers presented two invited papers at the prestigious Intermag Conference
in Ireland:
“Bio-Applications
of Giant Magnetoresistance and Tunneling Magnetoresistance Phenomena: In-Flow
Magnetic Biomarker Detection”
AND:
“Spintronic
Sensors in Transportation”
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Upcoming
Conferences |
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 Power
Conversion and Intelligent Motion (PCIM),
May 16 to 18, Nürnberg, Germany
NVE distributors Hy-Line (stand 9-525) and IS-Power (stand 7-601) will display
our products. Unique featured products will include six-kilovolt isolators.
Download
Free Registration Coupon Courtesy HY-LINE Power >
Sensor+Test 2017,
May 30 to June 1, Nürnberg, Germany
NVE sensors will be on display in cooperation with distributor IS-LINE (stand
5-146).
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Application
Corner |
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Analog
Sensor Amplifier
Although NVE analog sensors such as the new
AAL004-10E have large output signals, preamplifiers are used in some
applications. Instrumentation amplifiers such as the INA826 are popular because
they have a low component count and excellent common-mode rejection ratios without
needing to match resistors.
The reference circuit below has a gain of 20 to provide a full-scale output over
the sensor’s linear range:
A single-ended analog sensor
instrumentation amplifier circuit.
be provided by using a non-zero amplifier VREF. |
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