ADI AD8418ABRMZ

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Overview

The AD8418ABRMZ is a high voltage, high resolution current shunt amplifier. It features an initial gain of 20 V/V, with a maximum ±0.15% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8418ABRMZ offers excellent input common-mode rejection from −2 V to +70 V. The AD8418ABRMZ performs bidirectional current measurements across a shunt resistor in a variety of automotive and industrial applications, including motor control, power management, and solenoid control.

The AD8418ABRMZ offers breakthrough performance throughout the −40°C to +150°C temperature range. It features a zero drift core, which leads to a typical offset drift of 0.1 μV/°C throughout the operating temperature range and the common-mode voltage range. The AD8418ABRMZ is qualified for automotive applications. The device includes EMI filters and patented circuitry to enable output accuracy with pulse-width modulation (PWM) type input common-mode voltages. The typical input offset voltage is ±100 μV. The AD8418ABRMZ is offered in 8-lead MSOP and SOIC packages.

Features

Applications

• Addition operation circuits
• Subtraction operation circuits
• single/dual op amp sum and difference circuits
• Integrator circuits
• Differentiator circuits
• Logarithmic operation circuits
• Exponential operation circuits
• Multiplication circuits
• Division circuits
• Precision measurement