Analog Devices Inc. AD8211WYRJZ-R7

Overview

AD8211WYRJZ-R7 from Analog Devices is a high-voltage, unidirectional current shunt monitor IC with fixed 20 V/V gain, −2 V to +65 V common-mode input range, ±1 mV typical input offset voltage at 25°C, and 120 dB typical DC CMRR. It performs precision high-side current sensing in automotive engine management and motor control systems using a 5-lead SOT-23 package.

For engineers reviewing the AD8211WYRJZ-R7 datasheet, AD8211WYRJZ-R7 pinout, AD8211WYRJZ-R7 application, or AD8211WYRJZ-R7 equivalent, key selection criteria include its automotive qualification (AEC-Q100), ±4000 V HBM ESD rating, −40°C to +125°C operating temperature, buffered output interface to ADCs, and guaranteed linearity across 0 mV to 250 mV differential input at any common-mode voltage.

Technical Context

The AD8211WYRJZ-R7 uses a proprietary high-common-mode-input amplifier architecture with precision-trimmed internal resistors to deliver stable 20 V/V gain (±0.35% over temperature) and low drift (5 µV/°C offset, −13 ppm/°C gain). Its input stage maintains linearity across the full 0 mV–250 mV differential input range regardless of common-mode voltage from −2 V to +65 V.

It features rail-to-rail compatible output (0.05 V to 4.9 V at −40°C to +125°C), 500 kHz small-signal bandwidth, and 4.5 V/µs slew rate. Input impedance is 5 kΩ differential and 5 MΩ common-mode above 5 V common-mode voltage - enabling accurate shunt-based current measurement without loading effects in high-voltage industrial and automotive power paths.

Key Specifications

Pinout & Package

AD8211WYRJZ-R7 is housed in a RoHS-compliant 5-lead SOT-23 package (JEDEC MO-178-AA, package option RJ-5), optimized for space-constrained automotive PCB layouts and thermally demanding under-hood applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current sensing applications.

Compared with MAX4080TASA+ and INA240A1QDRQ1, AD8211WYRJZ-R7 delivers the lowest input offset (±1 mV) and best thermal stability (5 µV/°C drift) within its −2 V to +65 V common-mode window - making it optimal for precision 12 V automotive current sensing where low-current resolution and thermal consistency are critical.

Availability

AD8211WYRJZ-R7 is available at Aetrix Electronics and suitable for engine management, electric power steering, and transmission control applications requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.

Supply support for AD8211WYRJZ-R7 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD8211 product line delivers precision current sensing ICs engineered specifically for automotive and industrial high-side monitoring - emphasizing robustness, accuracy over temperature, and seamless integration with microcontroller ADCs.

FAQ

What is the common-mode input voltage range of the AD8211WYRJZ-R7?

The AD8211WYRJZ-R7 supports a continuous common-mode input voltage range of −2 V to +65 V, with guaranteed operation from −2 V to +65 V. This allows reliable high-side current sensing across automotive battery rails including cold-crank dips and load-dump transients. The AD8211WYRJZ-R7 maintains specified performance across this full range without degradation in CMRR or linearity.

Is the AD8211WYRJZ-R7 qualified for automotive applications?

Yes, the AD8211WYRJZ-R7 is explicitly qualified for automotive applications per AEC-Q100 Grade 0 standards, with guaranteed operation from −40°C to +125°C. Its branding code Y3N and ordering designation "W" confirm automotive qualification. The AD8211WYRJZ-R7 undergoes controlled manufacturing and reliability testing aligned with automotive requirements, including ±4000 V HBM ESD rating.

What is the gain accuracy and temperature drift of the AD8211WYRJZ-R7?

The AD8211WYRJZ-R7 has a fixed gain of 20 V/V with ±0.35% maximum gain error over the full −40°C to +125°C temperature range. Its gain vs. temperature coefficient is −13 ppm/°C typical, ensuring minimal gain variation across thermal extremes. This level of stability is confirmed in the AD8211WYRJZ-R7 datasheet Table 1 under W Grade specifications.

Can the AD8211WYRJZ-R7 be used for low-side current sensing?

Yes, the AD8211WYRJZ-R7 supports low-side current sensing configurations, delivering >90 dB typical CMRR and maintained linearity across 0 mV–250 mV differential input. Its input architecture rejects ground noise effectively, and the buffered output interfaces directly to ADCs. However, its primary design emphasis is high-side sensing; low-side use requires careful PCB layout to avoid ground loop errors.

What package type does the AD8211WYRJZ-R7 use, and what are its key mechanical features?

The AD8211WYRJZ-R7 uses a 5-lead SOT-23 package (JEDEC MO-178-AA, package option RJ-5), with dimensions of 3.00 mm × 1.70 mm × 1.30 mm. It features gull-wing leads, a 0.95 mm lead pitch, and RoHS-compliant finish. This compact, surface-mount package supports automated assembly and provides adequate thermal dissipation for continuous 2.0 mA quiescent current operation in automotive under-hood environments.