Analog Devices Inc. AD8211YRJZ-RL

Overview

AD8211YRJZ-RL from Analog Devices is a high-voltage, unidirectional current shunt monitor with fixed 20 V/V gain, ±0.35% gain error over −40°C to +125°C, −2 V to +65 V common-mode input range, and buffered output for direct ADC interfacing in automotive motor control systems.

For engineers reviewing the AD8211YRJZ-RL datasheet, AD8211YRJZ-RL pinout, AD8211YRJZ-RL application, or AD8211YRJZ-RL equivalent, key selection criteria include high-side sensing capability up to 65 V CM, 5 µV/°C offset drift, 120 dB dc CMRR, and SOT-23-5 packaging for space-constrained engine management and transmission control designs.

Technical Context

The AD8211YRJZ-RL employs proprietary input-stage circuitry to maintain linearity across 0 mV–250 mV differential input voltage regardless of common-mode voltage (−2 V to +65 V). Its precision-trimmed internal resistors achieve 0.01% matching, enabling stable 20 V/V gain with −13 ppm/°C drift.

It operates from a single 4.5 V–5.5 V supply, delivers rail-to-rail output swing (0.05 V to 4.9 V), and sustains 500 kHz small-signal bandwidth with 4.5 V/µs slew rate-optimized for PWM-based current feedback in solenoid and DC-DC converter control loops.

Key Specifications

Pinout & Package

AD8211YRJZ-RL is housed in a RoHS-compliant 5-lead SOT-23 (RJ-5) package with 0.95 mm lead pitch and 2.80 mm × 2.90 mm footprint, optimized for automated assembly and thermal performance in high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current shunt monitor applications.

Compared with INA240A1QDRQ1 and MAX40056ATA+T, AD8211YRJZ-RL offers the best balance of automotive qualification, 5 µV/°C drift, and −2 V to +65 V common-mode range-making it optimal for under-hood motor and solenoid controls where cost, size, and proven reliability are critical.

Availability

AD8211YRJZ-RL is available at Aetrix Electronics and suitable for motor controls, engine management, and transmission controls requiring stable component supply across extended temperature and high-voltage operating conditions.

Supply support for AD8211YRJZ-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, serving industrial, automotive, communications, and healthcare markets since 1965.

The AD8211 belongs to Analog Devices' precision current sense amplifier product line, designed specifically for high-reliability, high-common-mode automotive and industrial current measurement where accuracy, temperature stability, and robustness are non-negotiable.

FAQ

What is the maximum continuous common-mode voltage the AD8211YRJZ-RL can withstand?

The AD8211YRJZ-RL supports a continuous input voltage range of −3 V to +68 V, with specified common-mode operation from −2 V to +65 V. This allows direct connection to 48 V battery rails and compatibility with load-dump transients per ISO 7637-2. The device maintains full performance within this range without external protection circuitry.

Does the AD8211YRJZ-RL require external gain-setting resistors?

No, the AD8211YRJZ-RL features an internally trimmed, fixed gain of 20 V/V achieved through laser-trimmed resistors matched to 0.01%. This eliminates layout sensitivity, reduces BOM count, and ensures consistent gain accuracy (±0.35% over temperature) without external components-critical for high-volume automotive production.

Can the AD8211YRJZ-RL be used for low-side current sensing?

Yes, the AD8211YRJZ-RL supports low-side current sensing configurations. Its high common-mode rejection (>90 dB at dc for VCM < 5 V) and guaranteed linearity down to 0 mV differential input enable accurate ground-referenced measurements. However, its primary design focus is high-side sensing, where its −2 V to +65 V common-mode range provides distinct advantage.

What is the output voltage range of the AD8211YRJZ-RL at 125°C?

At −40°C to +125°C, the AD8211YRJZ-RL delivers an output voltage range of 0.05 V to 4.9 V (minimum) with a 5 V supply. This rail-to-rail capability ensures full utilization of a 12-bit ADC's dynamic range while maintaining monotonicity and <1% total error across temperature and load conditions.

Is the AD8211YRJZ-RL pin-compatible with other members of the AD8211 family?

Yes, all AD8211 variants-including AD8211YRJZ-R2, AD8211YRJZ-RL7, and AD8211WYRJZ-RL-share identical 5-lead SOT-23 (RJ-5) pinout and footprint. The AD8211YRJZ-RL differs only in tape-and-reel packaging (1000-piece reel) and Y-grade temperature specification (−40°C to +125°C), with no electrical or mechanical differentiation at the pin level.