By Broadcom Limited 28
Broadcom's ACPL-C87AT and ACPL-C87BT automotive isolation amplifiers utilize superior optical coupling technology with a sigma-delta (Σ−Δ) analog-to-digital converter, chopper-stabilized amplifiers, and a fully differential circuit topology to provide unequaled isolation mode noise rejection, low offset, high gain accuracy, and stability.
ACPL-C87AT (±1% gain tolerance) and ACPL-C87BT (±0.5% gain tolerance) are designed for high-precision DC voltage sensing in electronic motor drivers, DC/DC and AC/DC converters, and battery monitoring systems. The ACPL-C87AT and ACPL-C87BT feature high input impedance and operate with a full span of analog input voltages up to 2.46 V. The shutdown feature provides power saving and can be controlled from an external source such as a microprocessor.
The high common-mode transient immunity (15 kV/µs) of the ACPL-C87AT and ACPL-C87BT maintains the precision and stability needed to accurately monitor DC rail voltage in high noise motor control environments. This galvanically-safe isolation solution is delivered in a compact, surface-mount-stretched SO-8 (SSO-8) package that meets worldwide regulatory safety standards.
Broadcom R2Coupler isolation products provide the reinforced insulation and reliability needed for critical automotive and high-temperature industrial applications.