AD8410A
−2 V to 70 V Wide Input Voltage Range, 2.2 MHz High Bandwidth, Current-Sense Amplifier with PWM Rejection
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Overview
Features and Benefits
- 2.2 MHz small signal, −3 dB bandwidth
- In-package Trim Core (DigiTrim™)
- Precision without chopping and/or autozero
- Typical ±0.21 μV/°C offset drift
- Maximum ±200 μV voltage-offset over temperature range
- Typical DC CMRR: 142 dB
- Typical AC CMRR at 50 kHz: 96 dB
- Wide common-mode input voltage range
- −2 V to +70 V, continuous operation
- −20 V to +85 V, continuous survival
- Initial gain: 20 V/V
- Wide operating temperature range: −40°C to +125°C
- Bidirectional operation
- 2.9 V to 5.5 V power-supply operating range
- Available in 8-lead, SOIC_N package
- AEC-Q100 Automotive Qualified
Product Details
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 +70 V. 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 ±0.21 μV/°C (based on Box Method, see Figure 53 in the data sheet) throughout the operating temperature range and the common-mode voltage range without the need for chopping and autozero clocks (which could lead to intermodulation in the application). 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 ultra-low 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 offered in 8-lead, SOIC_N.
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
Protected by U.S. patent numbers 10,312,865 and 10,587,228.
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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Driving Higher Levels of Flexibility, Productivity, and Sustainability in Smart Manufacturing10/27/2021 Thought Leadership
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Dual AMR Motor Position Sensor for Safety Critical Applications11/1/2019 Analog Dialogue
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AD8410A
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AD8410A SPICE Macro Model
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.