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Analog Devices Inc. AD8213WYRMZ
- Part No.:
- AD8213WYRMZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8213WYRMZ.pdf
- Description:
- IC CURRENT MONITOR 0.25% 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,151
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Product details
Overview
AD8213WYRMZ 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 compatible with 5 V ADCs. It enables precision high-side current sensing in automotive motor controls and transmission systems.
For engineers reviewing the AD8213WYRMZ datasheet, AD8213WYRMZ pinout, AD8213WYRMZ application, or AD8213WYRMZ equivalent, key selection criteria include its dual-channel architecture, automotive-grade qualification (AEC-Q100), 120 dB dc CMRR, ±2.2 mV max RTI offset over temperature, and integrated low-pass filter pins (CF1/CF2) for noise suppression in noisy powertrain environments.
Technical Context
The AD8213WYRMZ employs proprietary offset circuitry and precision-trimmed 20 kΩ internal resistors to maintain linearity across 0 mV–250 mV differential input at any common-mode voltage from −2 V to +65 V. Its two independent amplifiers share no signal coupling, enabling simultaneous bidirectional current monitoring (e.g., load vs. charge).
Each channel features dedicated CF pins tied to internal 20 kΩ resistors, allowing external capacitors to implement noise-rejecting low-pass filters before amplification-preserving CMRR and avoiding gain error. The device operates from a single 4.5 V–5.5 V supply and delivers 4.5 mA total quiescent current at VCM > 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V fixed, ±0.5% max error over −40°C to +125°C - eliminates calibration overhead in production test. |
| Common-Mode Input Range | −2 V to +65 V continuous - supports direct connection to battery rails and high-side switch nodes in 12 V/24 V automotive systems. |
| Input Offset Voltage (RTI) | ±2.2 mV max over temperature - ensures ≤110 µA error at 250 mV full-scale shunt drop (50 A × 5 mΩ). |
| CMRR | 120 dB typical at dc, >100 dB up to 100 Hz - rejects battery ripple and PWM switching noise in motor drive feedback loops. |
| Small-Signal Bandwidth | 500 kHz - captures fast current transients in solenoid actuation and diesel injector control without phase lag. |
| Supply Voltage | 4.5 V to 5.5 V - interfaces directly with standard 5 V microcontroller domains without LDO overhead. |
| Operating Temperature | −40°C to +125°C - meets under-hood requirements for engine management and suspension control ECUs. |
Pinout & Package
AD8213WYRMZ 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 PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN2) | Inverting input, Channel 2 | Connects to shunt resistor low-side terminal for high-side sensing; high impedance (>5 kΩ) minimizes measurement error. |
| 2 (+IN2) | Noninverting input, Channel 2 | Connects to shunt resistor high-side terminal; withstands +65 V common-mode while rejecting ground noise. |
| 3 (GND) | Analog ground reference | Single-point return for both channels; must be routed away from power planes to preserve 120 dB CMRR. |
| 4 (OUT2) | Buffered output, Channel 2 | Rail-to-rail (0.05 V to 4.9 V), 2 Ω output impedance - drives 25 kΩ ADC inputs directly without buffering. |
| 5 (CF2) | Low-pass filter node, Channel 2 | Internal 20 kΩ resistor to input stage; add capacitor to GND for noise filtering without degrading gain accuracy. |
| 6 (CF1) | Low-pass filter node, Channel 1 | Independent of CF2; enables separate bandwidth tuning per channel for mixed-signal applications (e.g., motor + battery). |
| 7 (OUT1) | Buffered output, Channel 1 | Electrically isolated from OUT2; supports dual independent current measurements on same IC. |
| 8 (V+) | Positive supply | 4.5 V–5.5 V operation; decoupling capacitor required within 1 cm to suppress supply-induced errors at 500 kHz BW. |
| 9 (+IN1) | Noninverting input, Channel 1 | Matches +IN2 specs; used for primary motor phase current or battery charge path monitoring. |
| 10 (−IN1) | Inverting input, Channel 1 | Matches −IN2 specs; paired with +IN1 for differential shunt voltage acquisition with 250 mV max input range. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current sense channels | Enables simultaneous monitoring of motor phase current and battery charge/discharge on one IC - reduces BOM count and PCB area vs. two singles. |
| Automotive-grade qualification (AEC-Q100) | Validated for engine bay use with −40°C to +125°C operation, ±4000 V HBM ESD, and controlled manufacturing - eliminates requalification effort for Tier 1 suppliers. |
| Integrated low-pass filter pins (CF1/CF2) | Internal 20 kΩ precision resistors allow external capacitors to set cutoff frequency (e.g., 800 Hz with 10 nF); avoids external op-amp filters that degrade CMRR. |
| High common-mode rejection at low VCM | 90 dB CMRR maintained even when common-mode drops below 5 V (e.g., during cranking or load dump) - ensures accuracy in worst-case battery conditions. |
| Output linearity down to 2 mV differential input | Guarantees accurate low-current detection (e.g., idle solenoid hold current) regardless of VCM - extends dynamic range beyond competing amplifiers. |
Applications
| Motor Control Feedback | Transmission Solenoid Monitoring |
|---|---|
|
Use Scenario: Real-time phase current measurement in 3-phase BLDC motor drivers for electric power steering (EPS). IC Role / Device Role / Timing Role: Dual-channel AD8213WYRMZ senses high-side currents on two phases simultaneously, feeding analog signals to MCU ADCs for field-oriented control (FOC) loop closure at 20 kHz. Use Value: 500 kHz bandwidth captures PWM edge artifacts; ±0.5% gain error ensures torque command fidelity within ±1.5% across temperature - critical for ASIL-B functional safety compliance. |
Use Scenario: Monitoring solenoid coil current in 8-speed automatic transmission valve bodies to detect open/short faults and verify engagement timing. IC Role / Device Role / Timing Role: AD8213WYRMZ Channel 1 measures solenoid current; Channel 2 monitors supply rail voltage drop across sense resistor for diagnostics. Use Value: −2 V to +65 V common-mode range accommodates reverse-battery protection diodes; 120 dB CMRR rejects ignition noise during gear shifts - reduces false fault triggers by >99%. |
| Diesel Injector Drive Verification | Engine Management Current Diagnostics |
|
Use Scenario: Verifying peak current and dwell time of high-pressure diesel injectors driven by 80 V boost supplies in common-rail systems. IC Role / Device Role / Timing Role: AD8213WYRMZ placed on high-side of injector shunt; CF1 capacitor filters 2 MHz switching noise from gate driver, preserving 250 mV full-scale resolution. Use Value: Survival rating to +68 V prevents latch-up during load dump transients; 20 V/V gain scales 250 mV shunt drop to 5 V ADC input - maximizes SNR without external scaling. |
Use Scenario: Detecting parasitic battery drain and alternator field current in vehicle off-state and charging modes. IC Role / Device Role / Timing Role: AD8213WYRMZ Channel 1 monitors starter battery current; Channel 2 tracks alternator output via shunt on B+ line - both referenced to chassis GND. Use Value: ±2.2 mV RTI offset enables <10 mA detection threshold at 5 mΩ shunt; −40°C to +125°C spec covers cold-cranking to under-hood hot-soak - eliminates need for recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ATA+T | Single-channel, 500 kHz BW, ±1.5% gain error, −0.2 V to +65 V CM range | Lacks dual-channel capability; requires two devices for same functionality as AD8213WYRMZ | Select when only one current path needs monitoring and cost-per-channel is prioritized over integration. |
| INA240A1QDRQ1 | Single-channel, 800 kHz BW, ±0.2% gain error, −4 V to +80 V CM range, integrated 2.5 V reference | No CF pin for pre-amplifier filtering; higher gain accuracy but no dual-channel option in Q1 grade | Prefer for ultra-high-precision single-path sensing where 800 kHz bandwidth and lower offset outweigh need for dual channels. |
Compared with MAX40056ATA+T and INA240A1QDRQ1, AD8213WYRMZ uniquely delivers dual-channel operation in an automotive-qualified MSOP package with dedicated low-pass filter pins - reducing system-level component count and PCB complexity for multi-actuator control units without sacrificing bandwidth or accuracy.
Availability
AD8213WYRMZ is available at Aetrix Electronics and suitable for automotive motor controls, transmission solenoid monitoring, and diesel injection verification requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8213WYRMZ 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 AD8213WYRMZ belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for robust, high-accuracy current measurement in harsh automotive environments including engine management, transmission control, and electric powertrain systems.
FAQ
What is the guaranteed common-mode input voltage range for AD8213WYRMZ?
The AD8213WYRMZ guarantees continuous operation from −2 V to +65 V common-mode input voltage, with survival capability up to −3 V to +68 V. This range supports direct connection to 12 V and 24 V battery rails, including transient conditions like load dump and cranking, without external level-shifting circuitry. The specification is validated across the full −40°C to +125°C temperature range.
Does AD8213WYRMZ support bidirectional current sensing?
Yes, AD8213WYRMZ supports bidirectional current sensing through external configuration: Channel 1 monitors load current (ILOAD) while Channel 2 monitors charge current (ICHARGE) using a shared shunt resistor, as shown in Figure 31 of the datasheet. Each channel's output is unidirectional (0–5 V), so external circuitry (e.g., level-shifting or MCU software inversion) is required to reconstruct signed current values. The device itself does not provide internal bipolar output.
How does the CF1 and CF2 pin function in AD8213WYRMZ?
The CF1 and CF2 pins in AD8213WYRMZ connect to internal 20 kΩ precision resistors that form first-order low-pass filters with external capacitors to GND. This configuration filters noise *before* amplification, preserving CMRR and avoiding gain error - unlike post-amplifier RC filters. For example, a 10 nF capacitor yields a 800 Hz cutoff (f3dB = 1/(2π × 20 kΩ × C)), enabling clean current measurement in noisy PWM-driven motor applications.
What is the maximum differential input voltage supported by AD8213WYRMZ?
The AD8213WYRMZ supports a maximum differential input voltage of 250 mV across its input pins (e.g., +IN1 to −IN1). Exceeding this value risks saturation or nonlinearity; it is designed for use with low-value shunt resistors (e.g., 1–5 mΩ) in high-current applications. At 250 mV input and 20 V/V gain, the output reaches 5 V - matching standard 5 V ADC full-scale ranges without attenuation or scaling.
Is AD8213WYRMZ qualified for automotive applications?
Yes, AD8213WYRMZ is explicitly qualified for automotive applications per AEC-Q100, with the "W" suffix denoting automotive-grade manufacturing control, extended temperature validation (−40°C to +125°C), and reliability testing including HTOL and ESD (±4000 V HBM). It is listed in the official Ordering Guide as an automotive model and supported by Analog Devices' Automotive Reliability reports.
AD8213WYRMZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- ±0.25%
- Voltage - Input:
- -2V ~ 65V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
AD8213WYRMZ FAQ
1.How can I place an order for AD8213WYRMZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8213WYRMZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD8213WYRMZ reliable?
The price and inventory of AD8213WYRMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8213WYRMZ is usually 5 days.
3.What payment methods are accepted for AD8213WYRMZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8213WYRMZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8213WYRMZ?
AD8213WYRMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8213WYRMZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD8213WYRMZ?
For technical support, including AD8213WYRMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8213WYRMZ requirements.
6.How does Aetrix verify that AD8213WYRMZ is sourced from the original manufacturer or authorized distributors?
All AD8213WYRMZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD8213WYRMZ meets industry standards.
7.What is the process for return or replacement of AD8213WYRMZ?
All AD8213WYRMZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8213WYRMZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD8213WYRMZ part is unused and in its original packaging.
Return procedure for AD8213WYRMZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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