AH350
Linear Hall-Effect Sensors


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. 0.1 Jan 19, 2005
1/6

„ Features

- Extremely Sensitive
- Flat Response to 23 KHz
- Low-Noise Output
- 4.5V to 6V Operation
- SIP-3L and SOT23-3L Package



„ Application

- Gear tooth Sensor
- Notch Sensor
- Current Sensor





„ Pin Assignment

(SIP3 package)
( SOT23 package)
1. SUPPLY
2. GND
3.
1. SUPPLY
3.
GND 2.
(Top View)
OUTPUT
OUTPUT

„ General Description

The AH350 Hall-effect sensors accurately track
extremely small changes in magnetic flux
density—changes are generally too small to
operate Hall-effect switches.

As motion detectors, gear tooth sensors, and
proximity detectors, they are magnetically driven
mirrors of mechanical events. As sensitive
monitors of electromagnets, they can effectively
measure system’s performance with negligible
system loading while providing isolation from
contaminated and electrically noisy environments.

Each Hall-effect integrated circuit includes a Hall
sensing element, linear amplifier, and
emitter-follower output stage. Having the Hall cell
and amplifier on a single chip minimizes problems
associated with handling tiny analog signals.

The device is rated for continuous operation over
the temperature range of -20°C to +85°C.

„ Pin Configuration

Name Description
SUPPLY Input power
GND Ground
OUTPUT Output stage

„ Ordering Information

AH350 X - X X X
Packing
Blank : Tube
A : Taping
P: SIP-3L
Package Lead
L : Lead Free
Blank: Normal
Wafer Body
Blank or
A~Z : if necessary
to specify
W: SOT23-3L