AP1355AEM

Amplifier that can calibrate a drive current and an offset voltage of Hall element

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Description

The AP1355AEM is an Amplifier that can calibrate characteristics of Hall Element and errors after installation. A high accuracy current sensor can be configured easily by combining in the postatage of the AKM’s Hall Element, HG-series.

1. Easily calibrate characteristics of Hall Element and errors after installation
Characteristics of Hall Element and errors after installation can be calibrated by controlling a drive current and an offset voltage of Hall element by external adjustment. In addition, an automatic calibration system at power-up can be implemented by combining AKM’s DAC AK98xx built-in EEPROM to store a calibration value.

2. Contributing to downsizing of a mount board
The Built-in VREF(5V) can supply for the outside current supply to AK98xx.

□ Applications
High accuracy current sensor

>> Evaluation kit is available now. Please tell us to our sales or our distributor sales representative.

Key Features

1. Input Voltage range ±13.5 to ±16.5V
2. Operating Temperature range -40 to 105℃
3. Built-in current source for Hall Element 5mA±5.4% @ Ta= 25℃
4. Amplifier Gain Gain A= 180
Gain B= 95
5. Offset Voltage Offset Calibration Range ±1.85V (Typ)
6. Built-in Voltage Reference 5.0V±2% 6mA @ Ta= 25℃
7. Output Drive Ability ±10mA
8. Built-in VREF Current Limit
9. Built-in VO Current Limit
10. Built-in Thermal Protection
11. Package 16-pin TSSOP

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Block Diagram

Block Diagram

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