AD8418AWHRZ-RL
SP Amp Zero Drift Amp Single 5.5V 8Pin SOIC N T/R
Product Details
The AD8418A 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 AD8418A offers excellent input common-mode rejection from −2 V to +70 V. The AD8418A 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 AD8418A 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 AD8418A 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 AD8418A is offered in 8-lead MSOP and SOIC packages.
**Applications**
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- High-side current sensing in
Motor controls
Solenoid controls
Power management
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- Low-side current sensing
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- Diagnostic protection
### Features and Benefits
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- Typical 0.1 µV/°C offset drift
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- Maximum ±200 µV voltage offset over full temperature range
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- 2.7 V to 5.5 V power supply operating range
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- Electromagnetic interference EMI filters Included
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- High common-mode input voltage range
−2 V to +70 V continuous
−4 V to +85 V survival
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- Minimum DC common-mode rejection ratio CMRR: 90 dB
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- Initial gain = 20 V/V
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- Wide operating temperature range:
AD8418AWB: −40°C to +125°C
AD8418AWH: −40°C to +150°C
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- Bidirectional operation
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- Available in 8-lead SOIC and 8-lead MSOP
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- Qualified for automotive applications
