Analog Devices Inc. AD8410AWBRMZ-RL

Overview

AD8410AWBRMZ-RL from Analog Devices is a high-voltage, high-bandwidth current-sense amplifier designed for precision bidirectional shunt-based current measurement in harsh PWM environments. It delivers 20 V/V fixed gain, 2.2 MHz −3 dB bandwidth, ±200 µV max input offset over temperature, −2 V to +70 V continuous common-mode input range, and integrated PWM rejection circuitry-enabling accurate motor phase current sensing in BLDC inverters.

For engineers reviewing the AD8410AWBRMZ-RL datasheet, AD8410AWBRMZ-RL pinout, AD8410AWBRMZ-RL application, or AD8410AWBRMZ-RL equivalent, key selection criteria include its AEC-Q100 qualification, DigiTrim™ in-package trimming for ±0.21 µV/°C typical offset drift, 142 dB typical DC CMRR, 2.9 V to 5.5 V supply operation, and 8-lead MSOP package with FMEA-optimized pinout.

Technical Context

The AD8410AWBRMZ-RL employs a proprietary architecture with deglitch circuitry that holds output for ~1 µs during fast common-mode transients (e.g., 1 V/ns PWM edges), minimizing amplitude disturbance and settling time degradation. Its input stage maintains balanced bias currents across −2 V to +70 V common-mode voltage and full temperature range without chopping or autozero clocks.

It integrates dual reference inputs (VREF1, VREF2) tied via internal 60 kΩ resistors to enable ratiometric output offset adjustment-supporting unidirectional ground- or VS-referenced outputs and true bidirectional operation with external reference. Gain error remains ≤±0.13% over −40°C to +125°C.

Key Specifications

Pinout & Package

AD8410AWBRMZ-RL is housed in an 8-lead MSOP package (RM-8), thermally optimized for PCB mounting with θJA = 152°C/W and θJB = 120.6°C/W. Pin 4 and Pin 5 are no-connect (NC) terminals-Pin 4 internally connected but left floating or grounded per design; Pin 5 unconnected and must remain floating to satisfy FMEA isolation requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-sense amplifier applications.

Compared with INA240A1QDRQ1 and MAX40056ATA+T, the AD8410AWBRMZ-RL uniquely combines AEC-Q100 qualification, integrated PWM deglitch, DigiTrim™ low-drift architecture, and FMEA-optimized 8-lead MSOP packaging-making it the optimal choice for safety-critical automotive motor control where measurement integrity during fast transients is non-negotiable.

Availability

AD8410AWBRMZ-RL is available at Aetrix Electronics and suitable for BLDC motor control, 48 V automotive DC-DC conversion, and solenoid feedback systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.

Supply support for AD8410AWBRMZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.

The AD8410A product line was engineered specifically for high-accuracy, high-bandwidth current sensing in electric powertrain, industrial automation, and data center infrastructure-where PWM rejection, wide common-mode range, and automotive reliability are mandatory.

FAQ

What is the operating temperature range specified for the AD8410AWBRMZ-RL?

The AD8410AWBRMZ-RL is rated for operation from −40°C to +125°C, meeting AEC-Q100 Grade 1 requirements. This range is validated across all electrical specifications including gain error (≤±0.13%), offset (±200 µV max), and CMRR (≥123 dB), ensuring consistent performance in under-hood automotive and industrial environments where thermal cycling is severe.

Does the AD8410AWBRMZ-RL support bidirectional current measurement?

Yes, the AD8410AWBRMZ-RL supports true bidirectional current sensing through its dual reference inputs (VREF1 and VREF2). When configured with an external 2.5 V reference applied to both pins, the output centers at 2.5 V for zero differential input-enabling positive and negative current detection across the shunt resistor without external level-shifting circuitry.

How does the AD8410AWBRMZ-RL handle PWM-induced common-mode transients?

The AD8410AWBRMZ-RL incorporates dedicated deglitch circuitry that holds its output steady for approximately 1 µs during fast common-mode voltage steps (e.g., 0 V → 60 V). This prevents output disturbance during IGBT/MOSFET switching edges, preserving measurement fidelity in BLDC motor control and DC-DC converter applications where dV/dt exceeds 1 V/ns.

What package type is used for the AD8410AWBRMZ-RL and why is Pin 4 labeled NC?

The AD8410AWBRMZ-RL uses an 8-lead MSOP (RM-8) package. Pin 4 is designated NC (No Connect) but is internally connected to the die substrate-intended to be left floating or tied to GND per layout guidelines. Its inclusion satisfies FMEA requirements by isolating +IN and −IN pins, reducing risk of single-point failure in safety-critical systems.

Can the AD8410AWBRMZ-RL operate from a 3.3 V supply?

Yes, the AD8410AWBRMZ-RL operates from 2.9 V to 5.5 V, making 3.3 V fully supported. At 3.3 V, it maintains 2.2 MHz bandwidth and 142 dB DC CMRR, with output swing within 5 mV of GND and 16 mV of VS-enabling direct interface with 3.3 V SAR ADCs and microcontrollers without level-shifting.