AN48800A Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – Low current consumption, high sensitivity CMOS Hall IC One-way magnetic field operation

Individual Specification
AN48800A
Low current consumption, high sensitivity CMOS Hall IC
One-way magnetic field operation
■ Overview
The AN48800A is a Hall IC (a magnetic sensor) which has 2 times
or more sensitivity and a low current consumption of about one three-
hundredth compared with our conventional one.
In this Hall IC, a Hall element, a offset cancel circuit, an amplifier
circuit, a sample and hold circuit, a Schmidt circuit, and output stage
FET are integrated on a single chip housed in a small package by IC
technique.
■ Features
 High sensitivity (6 mT max.) due to offset cancel circuit and a new
sample and hold circuit
 Small current by using intermittent action (10 µA typ.)
 Small package (SMD)
 Open drain output
■ Applications
 Flip type cellular phone, digital video camera
(1.45)
0.40^{+−00..1005}
0.10 M
3
Unit : mm
1
0.95 0.95 ²
1.90±0.20
2.90^{+−00..2005}
0.10
0.40±0.20
0.10 to 0.30
Seating plane
MINI-3DRA (Lead-free package)
■ Block Diagram
Intermittent action
1
V_CC 2.5 V to 3.5 V
2
Out
Hall
element
Amplifier
Offset
cancel
Sample
and
hold
Comparator
3
GND
Note) The magnetism detection time should be longer than one intermittent action cycle (On = 200 µs and Off = 51 ms).
■ Pin Descriptions
Pin No. Symbol
1
V_CC
2
Out
3
GND
Description
Power supply
Output
Ground
20