AHG-166A
Specifications: The AHG-166A is the surface-mount SSOP-4 version of a high-sensitivity GaAs Hall element. It operates at 14mA, delivering a high 80-110mV Hall voltage. It has an input resistance of 1.0-1.5kΩ, a higher output resistance of 1.8-3.0kΩ, and an offset of ±8mV. It is specified for -40°C to 125°C.
Application Scenarios: Its high sensitivity in a robust SMD package makes it ideal for precision applications in challenging environments. Common uses include contactless current sensors for motor drives and power supplies, joystick and control lever position sensing in industrial machinery, and high-resolution angular or linear position sensors in automotive throttle or pedal applications.
AHG-362A
Specifications: The AHG-362A is a high-sensitivity GaAs Hall element in a compact SIP package. It features a higher Hall voltage output range of 80-110mV with a 14mA input current. Its resistances are asymmetrical: input resistance of 1.0-1.5kΩ and a higher output resistance of 1.8-3.0kΩ, with a correspondingly higher offset voltage of ±8mV. It operates from -40°C to 125°C.
Application Scenarios: Designed for applications requiring a stronger signal from a given magnetic field. This makes it ideal for precision current sensing (when paired with a magnetic concentrator), weak magnetic field detection, and linear position sensing where a higher output voltage improves the signal-to-noise ratio (SNR) of the measurement circuit, especially in automotive and industrial environments.
ATHS124
Specifications: The ATHS124 is a high-sensitivity GaAs Hall element in an SSOP-4 package, sharing the exact electrical specifications of the AHG-166A (14mA, 80-110mV, etc.). It provides the same robust performance across the full industrial temperature range.
Application Scenarios: As a functional equivalent to the AHG-166A, it is used in applications demanding a strong, clean signal from a magnetic field. It is well-suited for battery management system (BMS) current shunts, industrial weighing scales with magnetic position feedback, and advanced driver assistance systems (ADAS) requiring precise non-contact measurements, offering an alternative source for this performance tier.