AH182/AH183
Low power Hall Effect Switch


This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.3 May 7, 2004
1/6

„ Features

- Micropower operation
- 2.5V to 5.5V battery operation
- Offset Canceling Technology
- Superior temperature stability
- Extremely Low Switch-Point Drift
- Insensitive to Physical Stress
- -40°C to 85°C operating temperature
- Low profile 3 pin SIP/SOT23 package


„ Applications


- Cover detector
- Speed measurement
- Home safety


„ Pin Assignments

(SIP3 package)
( SOT23 package)
1. VCC
2. GND
3.
1. VCC
3.
GND 2.
(Top view)
Output
Output

„ General Description

AH182/AH183 is a three-terminal Hall effect sensor
device with a output driver, mainly designed for
battery–operation, hand-held equipment(such as
Cellular and cordless Phone, PDA) The total
operation power is down to 15uW in the 2.75V
supply.
The south pole of sufficient strength will turn the
output on in SIP3 but the north pole of sufficient
strength will turn the output on in SOT23 package.
The output will be turned off under no magnetic
field.
While the magnetic flux density (B) is larger than
operate point (Bop), the output will be turned on
(low), the output is latched until B is lower than
release point (Brp), then turned off that. The
difference between AH182 and AH183 is the former
consumes less power than that of the latter in the
Hall sensor operation.

„ Pin Descriptions


Name P/I/O Pin # Description
Vcc P/I 1 Power Supply Input
GND P 2 Ground
Output O 3 Output Pin

„ Ordering Information

AH182/AH183 X -XX X
Packing
Blank : Tube or Bulk
A : Tape & Reel
P: SIP-3L
W: SOT23-3L
Package Lead
L : Lead Free
Blank: Normal
Wafer Body
Blank or
A~Z : if necessary
to specify
CMOS Hall-effect Switch