Analog Devices Inc. AD8215WYRZ-R7

Overview

AD8215WYRZ-R7 from Analog Devices is a high-voltage, unidirectional current shunt monitor with fixed 20 V/V gain, ±0.3% max gain error over −40°C to +125°C, −2 V to +65 V common-mode input range, and buffered rail-to-rail output. It enables precision high-side current sensing in automotive engine management and motor control systems using a 5 V supply.

For engineers reviewing the AD8215WYRZ-R7 datasheet, AD8215WYRZ-R7 pinout, AD8215WYRZ-R7 application, or AD8215WYRZ-R7 equivalent, this device supports design of robust, AEC-Q100-compliant current monitoring where wide common-mode rejection, low offset drift (±6 µV/°C typ), and survival up to +68 V are critical.

Technical Context

The AD8215WYRZ-R7 employs a proprietary input stage architecture that maintains linearity across 0 mV–250 mV differential input voltage regardless of common-mode voltage (−2 V to +65 V). Its gain-setting resistors are laser-trimmed to 0.01% matching, enabling stable 20 V/V amplification without external calibration.

It delivers 120 dB typical CMRR at dc for high-noise environments, 450 kHz small-signal bandwidth, and operates from a single 4.5 V–5.5 V supply while sinking/source up to 10 mA output current. Input bias current remains below 1 µA across its full common-mode range.

Key Specifications

Pinout & Package

AD8215WYRZ-R7 is housed in an 8-lead SOIC_N (R-8) package, 3.9 mm × 4.9 mm body, 1.27 mm pitch, RoHS-compliant and automotive-qualified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4080TASA+ and INA240A1QDRQ1, the AD8215WYRZ-R7 uniquely combines AEC-Q100 qualification, 450 kHz bandwidth, and guaranteed −2 V to +65 V operation - making it optimal for time-critical, safety-relevant automotive current sensing where both speed and ruggedness are mandatory.

Availability

AD8215WYRZ-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 AD8215WYRZ-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 AD8215WYRZ-R7 belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for high-reliability automotive current monitoring where accuracy, common-mode resilience, and AEC-Q100 compliance are non-negotiable.

FAQ

What is the maximum common-mode voltage the AD8215WYRZ-R7 can survive continuously?

The AD8215WYRZ-R7 has a continuous input survival rating of −3 V to +68 V, verified per Absolute Maximum Ratings Table 2. This allows it to withstand automotive load-dump transients and reverse-battery conditions without damage. The AD8215WYRZ-R7 operates reliably within −2 V to +65 V, making it suitable for direct connection to 12 V and 24 V battery rails in harsh environments.

Does the AD8215WYRZ-R7 require external gain-setting resistors?

No, the AD8215WYRZ-R7 features an internally trimmed, fixed gain of 20 V/V with ±0.3% maximum error over temperature. Its precision-matched internal resistors eliminate the need for external components, reducing PCB area, bill-of-materials cost, and calibration effort. This fixed-gain architecture is integral to the AD8215WYRZ-R7 die design and cannot be modified.

Can the AD8215WYRZ-R7 be used for low-side current sensing?

Yes, the AD8215WYRZ-R7 supports low-side current sensing configurations as documented in the Applications Information section (Figure 30). Its high CMRR (>90 dB typical) and input impedance (5 MΩ common-mode) reject ground noise effectively. However, its optimized architecture targets high-side use; for dedicated low-side applications, alternatives with enhanced ground-referenced performance may be considered.

What is the output voltage range of the AD8215WYRZ-R7 at full temperature range?

The AD8215WYRZ-R7 delivers an output voltage range of 0.10 V to 4.90 V over −40°C to +125°C, with 0.03 V to 4.95 V specified at 25°C. This rail-to-rail buffered output ensures compatibility with standard 5 V ADC references and eliminates the need for level-shifting circuitry. The AD8215WYRZ-R7 maintains monotonicity and linearity across this full swing.

Is the AD8215WYRZ-R7 pin-compatible with other members of the AD8215 family?

Yes, the AD8215WYRZ-R7 shares identical pinout, footprint, and electrical behavior with all AD8215 variants (e.g., AD8215YRZ-R7, AD8215WYRZ-RL) in the 8-lead SOIC_N (R-8) package. Differences are limited to packaging format (tape/reel size), automotive qualification (W-grade), and RoHS status (Z-suffix); no pin function or timing change occurs across these variants.