Analog Devices Inc. AD8213YRMZ

Overview

AD8213YRMZ from Analog Devices is a dual-channel, high-voltage current shunt monitor with fixed 20 V/V gain, ±0.5% 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 performs unidirectional high-side current sensing in automotive motor controls and engine management systems using precision shunt resistors.

For engineers reviewing the AD8213YRMZ datasheet, AD8213YRMZ pinout, AD8213YRMZ application, or AD8213YRMZ equivalent, key selection criteria include its dual-channel architecture, guaranteed CMRR ≥100 dB at dc, ±2.2 mV max input offset (RTI), 500 kHz small-signal bandwidth, and MSOP-10 package compatibility with space-constrained automotive PCB layouts.

Technical Context

The AD8213YRMZ integrates two independent current sense amplifiers sharing a single 5 V supply and ground reference. Each channel uses proprietary offset circuitry and precision-trimmed 20 kΩ internal resistors for low-pass filtering via external CF pins, enabling noise-rejecting signal conditioning before amplification.

Its input stage maintains linearity across 0 mV–250 mV differential input voltage regardless of common-mode voltage (−2 V to +65 V), and its output buffer delivers 0.05 V to 4.9 V swing into 25 kΩ load-directly interfacing with standard SAR ADCs without level-shifting.

Key Specifications

Pinout & Package

AD8213YRMZ is housed in a 10-lead MSOP (RM-10) package, 3.0 mm × 3.0 mm × 1.1 mm, with exposed pad for thermal performance in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA240A1QDRQ1 and AD8210WYRZ-RL, AD8213YRMZ uniquely delivers dual-channel, high-bandwidth, filter-enabled current sensing in a single MSOP-10 package-reducing component count and PCB area in multi-actuator automotive control units without sacrificing accuracy or noise immunity.

Availability

AD8213YRMZ is available at Aetrix Electronics and suitable for motor controls, engine management, and transmission control applications requiring stable component supply, AEC-Q100-compliant performance, and long-term automotive lifecycle support.

Supply support for AD8213YRMZ 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.

The AD8213 belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for robust, high-accuracy current measurement in harsh automotive and industrial environments where wide common-mode range and temperature stability are critical.

FAQ

What is the maximum common-mode voltage the AD8213YRMZ can withstand continuously?

The AD8213YRMZ supports a continuous common-mode input voltage range of −2 V to +65 V. Its absolute maximum survival rating extends to −3 V to +68 V, making it suitable for automotive battery rail monitoring including load-dump transients. This specification applies to both channels independently under normal operating conditions with 5 V supply.

Does the AD8213YRMZ support bidirectional current sensing?

The AD8213YRMZ is optimized for unidirectional current measurement but can be configured for bidirectional sensing using external reference circuitry-as shown in Figure 31 of the datasheet-where Channel 1 monitors load current and Channel 2 monitors charge current. For native bidirectional operation without external components, Analog Devices recommends the AD8210, which integrates internal reference generation for true ±x mV input range.

How does the CF pin function in the AD8213YRMZ?

The CF1 and CF2 pins on the AD8213YRMZ connect to internal 20 kΩ precision-trimmed resistors that form first-order low-pass filters with external capacitors to GND. This configuration filters input noise before amplification, preserving CMRR and avoiding gain errors. The −3 dB corner frequency is calculated as f_c = 1/(2π × 20 kΩ × C_F), enabling design flexibility from ~1 kHz to >100 kHz depending on capacitor value.

What is the output voltage range of the AD8213YRMZ at room temperature?

At 25°C with 5 V supply and 25 kΩ load, the AD8213YRMZ delivers an output voltage range of 0.05 V to 4.9 V for the Y grade. This rail-to-rail capable output ensures full utilization of a 5 V ADC's input range, minimizing quantization error. Output swing degrades slightly at temperature extremes but remains within 0.1 V to 4.9 V across −40°C to +125°C.

Is the AD8213YRMZ pin-compatible with other devices in the AD821x family?

No, the AD8213YRMZ is not pin-compatible with AD8210 or AD8214 due to its dual-channel architecture and unique 10-lead MSOP pinout (e.g., dedicated CF1/CF2 and dual OUT/IN pairs). Pin mapping differs fundamentally-AD8210 uses 8-pin SOIC and AD8214 uses 8-pin SOIC with comparator output-requiring PCB redesign for substitution. Always verify pin functions using the official AD8213YRMZ pin configuration diagram.