Analog Devices Inc. AD8206WYRZ

Overview

AD8206WYRZ from Analog Devices is a high common-mode voltage, bidirectional current shunt amplifier optimized for automotive high-side current sensing in solenoid and motor control systems. It features 20 V/V gain, −2 V to +65 V operating common-mode range, ±1.2% gain accuracy over temperature, and operates from a 5 V single supply. Its output offset is adjustable from 0.08 V to 4.7 V, enabling unidirectional or bidirectional current measurement in diesel injection and transmission control.

For engineers reviewing the AD8206WYRZ datasheet, AD8206WYRZ pinout, AD8206WYRZ application, or AD8206WYRZ equivalent, this page delivers verified technical context, SOIC-8 pin mapping, real-world use cases in automotive powertrain systems, and validated alternative parts with documented functional and thermal differences.

Technical Context

The AD8206WYRZ employs a two-stage difference amplifier architecture with precision laser-trimmed resistor networks (matching <0.01%) to achieve ≥76 dB CMRR from dc to 20 kHz. Its input attenuators scale common-mode voltages by 1/16.7, enabling operation with inputs exceeding supply rails while maintaining RTI offset drift ≤15 µV/°C and gain drift ≤30 ppm/°C.

It supports flexible output offset configuration via VREF1 and VREF2 pins: tying both to GND yields ground-referenced unidirectional output; tying both to V+ yields V+-referenced unidirectional output; splitting across V+ and GND sets ratiometric half-scale (2.5 V @ 5 V) for bidirectional sensing without external references.

Key Specifications

Pinout & Package

AD8206WYRZ is housed in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch and 5.00 mm × 4.00 mm body dimensions. The package is RoHS-compliant (Z suffix) and qualified for automotive under AEC-Q100.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high common-mode voltage current shunt amplifier applications.

Compared with AD8206WYRZ, MAX4080TASA+ offers tighter DC drift but lacks configurable output offset, while INA240A1QDRQ1 extends common-mode range and adds ESD hardening at the cost of higher supply current - making AD8206WYRZ optimal for cost-sensitive, thermally demanding automotive solenoid control where ratiometric offset tuning is critical.

Availability

AD8206WYRZ is available at Aetrix Electronics and suitable for diesel injection control, transmission solenoid control, and H-bridge motor control requiring stable component supply across automotive production lifecycles.

Supply support for AD8206WYRZ 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, serving industrial, automotive, communications, and healthcare markets since 1965.

The AD8206 product line delivers precision current sensing ICs engineered specifically for automotive powertrain and chassis control systems, emphasizing high common-mode rejection, wide temperature operation, and robust transient survivability.

FAQ

What is the maximum common-mode voltage the AD8206WYRZ can withstand continuously?

The AD8206WYRZ supports a continuous input common-mode voltage range of −2 V to +65 V. Its absolute maximum ratings allow survival at −25 V to +75 V, making it suitable for 12 V, 24 V, and 42 V automotive battery systems including load-dump and jump-start conditions. This specification is confirmed in the Absolute Maximum Ratings table of the Rev. C datasheet.

How does the AD8206WYRZ achieve bidirectional current sensing?

The AD8206WYRZ achieves bidirectional current sensing through its configurable output offset: by applying appropriate voltages to VREF1 and VREF2 (e.g., splitting across V+ and GND), the output is set to mid-supply (2.5 V at 5 V), allowing positive and negative differential inputs to drive the output above or below that point. This enables detection of current direction in H-bridge motor control without external components.

Is the AD8206WYRZ pin-compatible with other grades in the AD8206 family?

Yes, the AD8206WYRZ shares identical 8-lead SOIC_N (R-8) packaging and pinout with AD8206YRZ and AD8206WHRZ. All variants use the same metallization diagram, pin functions, and footprint - enabling drop-in replacement across Y, WY, and WH grades where thermal requirements align.

What is the typical output resistance of the AD8206WYRZ?

The AD8206WYRZ has a typical output resistance of 2 Ω, as specified in the Electrical Characteristics table (Rev. C, Page 3). This low impedance supports driving 25 kΩ loads with minimal gain error and enables stable operation into typical ADC input stages or op-amp buffers without additional isolation.

Does the AD8206WYRZ require external calibration for automotive temperature range operation?

No, the AD8206WYRZ does not require external calibration for operation across its rated −40°C to +125°C range. Its laser-trimmed resistor network ensures ±1.2% gain accuracy and ≤15 µV/°C offset drift over temperature, delivering <±0.5% total measurement error without system-level trimming - a key requirement for AEC-Q100-compliant automotive modules.