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OCH1903
Continuous-Time Ratio-metric Linear Hall
Effect Sensor
General Description
Features
The OCH1903 is small, versatile linear Hall effect Supply Voltage Range: 2.5V ~ 6.0V
devices which are operated by the magnetic field from a Fast Power-on Time
permanent magnet or an electromagnet. They are Power Consumption of 5mA at 5V Supply
optimized to accurately provide a voltage output that is
Voltage
proportional to an applied magnetic field. These devices Single Current Sinking or Current Sourcing
have a quiescent output voltage that is 50% of the supply
Output
voltage.
Linear Output For Circuit Design Flexibility
The Hall-effect integrated circuit included in each Ratio-metric Output for A/D Interface
device includes a Hall sensing element, a linear amplifier, Wide Sensible Magnetic Field Range on Different
and a CMOS Class AB output structure. Integrating the
Supplied Voltage ±1100Gauss on 5V Supplied
Hall sensing element and the amplifier on a single chip
Voltage
minimizes many of the problems normally associated with Rail to Rail Operation Provides More Useable
low voltage level analog signals.
Signal For Higher Accuracy
High precision in output levels is obtained by internal Temperature Stable Quiescent Output Voltage
gain and offset trim adjustments made at end-of-line Quad Hall Sensing Element For Stable Output
during the manufacturing process.
Low Noise Output
The integrated circuitry provides increased Responds to Either Positive or Negative Gauss
temperature stability and sensitivity, for both linear target Robust EMC Protection
motion and rotational motion. These linear position Temperature Range of -40°C to +125°C
sensors have an operating temperature range of -40°C to Package SIP-3L
+125°C, appropriate for industrial environments. They
respond to either positive or negative gauss, monitoring Applications
either or both magnetic poles. The quad Hall sensing Current Sensing
element minimizes the effects of mechanical or thermal Motor Control
stress on the output. The positive temperature coefficient Linear Position Sensing
of the sensitivity helps compensate for the negative Magnetic Code Reading
temperature coefficients of low cost magnets, providing a Rotary Position Sensing
robust design over a wide temperature range.
Ferrous Metal Detector
The OCH1903 is available in SIP-3L package, and is Vibration Sensing
rated over the -40°C to +125°C. These packages are Liquid Level Sensing
available in a lead (Pb) free version.
Weight Sensing
Pin Configuration
SIP-3L (Top View)
Pin Name
VDD
GND
OUTPUT
Figure 1, Pin Assignments of OCH1903
Pin No.
SIP-3L
1
2
3
I/O Pin Function
P Power Supply Pin.
P Ground Pin.
O Linear Voltage Output Pin.
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Ver. 1.1 Feb .27, 2018
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Typical Application Circuit
OCH1903
Figure 2, Typical Application of OCH1903
Note: C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is
10nF~100nF.
Ordering Information
OCH1903XXX
Package:
M:SIP-3L
Part Number Sensitivity (Typ.)
OCH1903ME 1.8mV/Gauss
Packing:
Blank:Tube or Bulk
A:Tape&Reel
Temperature Grade:
E: -40°C~125°C
Package Type
Package Qty
Temperature
SIP-3L
Bulk 1000pcs/bag -40125
Eco Plan
Rohs
Lead
Cu
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Ver. 1.1 Feb .27, 2018
源于灿瑞 磁传天下