AD8410AWBRZ

The AD8410A is a high voltage, high bandwidth current-sense amplifier. The device features an initial gain of 20 V/V, with a 2.2 MHz bandwidth with a maximum ±0.13% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8410A has a minimum DC common-mode rejection ratio (CMRR) of 123 dB from - 2 V to +70V. The AD8410A performs bidirectional current measurements across a shunt resistor in a variety of industrial and automotive applications. The AD8410A offers breakthrough performance throughout the - 40°C to +125°C temperature range. The device features an in-package trim core, which leads to a typical offset drift of ±0.21μV / °C throughout the operating temperature range and the common-mode voltage range without the need for chopping and autozero clocks. The device includes circuitry to achieve a wide input common-mode range and balanced input bias currents, regardless of input differential voltage or common-mode voltage, and circuitry to achieve ultralow CMRR drift. The device also includes circuitry to enable output accuracy in the presence of pulse-width modulation (PWM) type input common-mode voltages. The AD8410A is available in 8-lead SOIC_N, 8-lead MSOP, and 10-lead MSOP packages.

Applications

• In-phase or high-side current sensing in
• Motor control in BLDC motors, low-inductance motors
• Bidirectional 48 V to 12 V DC-DC converters
• Solenoid controls
• Power rail monitoring
• Low-side current sensing
• Datacenter power supply unit (PSU) and battery backup unit (BBU)

Key features

• 2.2 MHz small signal
• -3 dB bandwidth
• In-package Trim Core (DigiTrim™)
• Precision without chopping and/or autozero
• Typical ±0.21μV / °C offset drift
• Maximum ±200μV voltage-offset over temperature range
• Typical DC CMRR: 142 dB
• Typical AC CMRR at 50 kHz: 96 dB
• Wide common-mode input voltage range
• -2V to +70V continuous operation
• -20V to +85V continuous survival
• Initial gain: 20V / V
• Wide operating temperature range: -40°C to +125°C
• Bidirectional operation
• 2.9V to 5.5V power-supply operating range
• Available in 8-lead SOIC_N, 8-lead MSOP, and 10-lead MSOP packages
• AEC-Q100 qualified for automotive applications