AD-Series GMR Switches
AD-Series GMR Switch™ Precision Digital Magnetic Sensors
Functional Diagram
Features
• Digital outputs
• Precision operate points from 1 – 8 mT (10 – 80 Oe)
• 3 V – 6 V and 4.5 V – 30 V versions
• 20 mA output drive
• Temperature and voltage stability
• Available with short-circuit protection
• Standard or cross-axis orientation
• Frequency response to 100 kHz
• Ultraminiature TDFN6 and MSOP8 packages
Vcc
Short-
Voltage
Circuit
Regulator
Protection
(optional)
(optional)
GMR
Sensor
Comparator
Element
Output
Driver
OUT
Applications
• Motion, speed, and position control
• Pneumatic cylinder position sensing
• Speed sensing
GND
Description
AD-Series GMR Switches are the industry standard for
sensitivity and precision.
Idealized Transfer Function
GMR Switches integrate GMR sensor elements with digital
signal processing electronics. These sensors are more precise
than other magnetic sensors, and magnetic field operate
points are stable over voltage and temperature extremes.
AD-Series models available in a wide variety of magnetic
operate points and output configurations. Versions are
available with short-circuit protection circuitry and with
integrated voltage regulators.
1
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
sensor-info@nve.com
www.nve.com
©NVE Corporation
AD-Series GMR Switches
Absolute Maximum Ratings
Parameter
Supply voltage
Symbol
AD08x
AD8xx/AD9xx
All others
Output voltage
Continuous output current
Operating temperature
Storage temperature
ESD
Applied magnetic field
VCC
Min.
−0.5
−0.5
−33
−0.5
−40
−65
B
Max.
7
33
33
33
24
125
150
2000
Unlimited
Units
Test Conditions
Volts
Volts
mA
°C
°C
Volts
tesla
Human Body Model
2
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
sensor-info@nve.com
www.nve.com
©NVE Corporation
AD-Series GMR Switches
Operating Specifications
Tmin to Tmax; 4.5 V < VCC < 30 V unless otherwise stated.
Parameter
Symbol
Min.
Typ.
Max.
Units
Supply voltage
VCC
AD084
3
6
Volts
All others
4.5
30
Operating temperature
TMIN; TMAX
−40
125
°C
Magnetic operate point
ADH025
0.8
1
1.2
AD004; AD021; AD621
1.5
2
2.5
AD024; AD084; AD824; AD924
BOP
2.1
2.8
3.3
mT*
AD005; AD022
3
4
5
AD913
5
6
7
AD006; AD023
6
8
10
Operate/release differential
ADH025
0.2
0.8
AD004; AD021; AD621
0.5
1.4
BOP−BREL
AD024; AD084; AD824; AD924
0.5
1.5
mT*
AD005; AD022
0.5
2.5
AD913
0.5
2.2
AD006; AD023
0.5
5
AD08x
0.7
1.2
1.8
3
2.5
4.5
4
6.5
AD0xx–AD7xx
Supply
(except AD08x)
ICC
5.5
mA
current
7.5
6.3
8.3
1.75
3.5
AD8xx/AD9xx
3
5.5
AD0xx–AD7xx
20
Output
IO-ON
mA
current
AD8xx/AD9xx
2
AD8xx/AD9xx
0.4
Sinking
VOL
output voltage AD0xx–AD7xx
0.2
V
VCC–2
AD8xx/AD9xx
Sourcing
VOH
output voltage AD0xx–AD7xx
VCC–2.5
Output leakage current (output Off)
IO-OFF
10
µA
Short-circuit voltage (AD8xx/AD9xx only)
VShort
0.12
0.17
V
5.8
6.2
AD4xx – AD7xx
V
VCC – 0.9
3.5
Regulator
VREG
output
5.8
6
AD8xx/AD9xx
V
VCC – 0.9
3.5
Regulator output (AD4xx – AD9xx)
IREG
3
mA
Frequency response
fMAX
100
kHz
Junction–Ambient Thermal Resistance
320
°C/W
θJA
Test Conditions
VCC = 5 V; Output Off
VCC = 5 V; Output Off
VCC = 5 V; Output On
VCC = 12 V; Output Off
VCC = 12 V; Output On
VCC = 24 V; Output Off
VCC = 24 V; Output On
VCC = 30 V; Output Off
VCC = 30 V; Output On
VCC = 12 V; Output Off
VCC = 12 V; Output On
VCC = 12 V; IO = 2 mA
VCC = 12 V; IO = 20 mA
VCC = 12 V
VCC = 12 V
Output On
VCC >6.6V; 0< IREG 6.6V; 0< IREG
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