Individual Specification
20
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
■ Block Diagram
1
V
CC
2.5 V to 3.5 V
3
GND
2
Out
Sample
and
hold
Offset
cancel
Hall
element
Comparator
Amplifier
Intermittent action
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 Description
1 V
CC
Power supply
2 Out Output
3 GND Ground
2
3
1
0.11
+
0.10
−
0.05
Seating plane
0 to 0.10 0.40±0.20
1.10
+
0.30
−
0.10
0.10 to 0.30
1.10
+
0.20
−
0.10
1.50
+
0.25
−
0.05
0.40
+0.10
−0.05
(1.45)
0.65
±
0.15
2.80
+
0.20
−
0.30
1.90±0.20
0.6
5
±
0.15
2.90
+0.20
−0.05
0.95 0.95
0.10
M0.10
Unit : mm
MINI-3DRA (Lead-free package)