AN48800A

0.11-+00..0150 Hall ICs AN48800A Low current consumption, high sensitivity CMOS Hall IC One-way magnetic field operation 0.65±0.15 ■ 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. (1.45) 0.40+-00..0150 0.10 M 3 1 0.95 0.95 1.90±0.20 2.90+-00..0250 2 0.65±0.15 1.50-+00..0255 2.80-+00..3200 Unit: mm 0 to 0.10 1.10-+00..1200 1.10-+00..1300 ■ Features High sensitivity (6 mT max.) due to offset cancel circuit and a new sample and hold circuit Small current by using intermittent action Small package (SMD) Open drain output 0.10 0.40±0.20 0.10 to 0.30 Seating plane MINI-3DRA (Lead-free package) ■ Applications Flip type cellular phone, digital video camera ■ Block Diagram Intermittent action 1 VCC 2.5 V to 3.5 V 2 Out Hall element Amplifier Comparator Offset cancel Sample and hold 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 VCC 2 Out 3 GND Description Power supply Output Ground Publication date: November 2002 SPC00001CEB 1 AN48800A ■ Absolute Maximum Ratings Parameter ...