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Analog Devices Inc. AD8213WHRMZ-RL
- Part No.:
- AD8213WHRMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8213WHRMZ-RL.pdf
- Description:
- IC CURRENT MONITOR 0.25% 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,039
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Product details
Overview
AD8213WHRMZ-RL from Analog Devices is a dual-channel, high-voltage current shunt monitor designed for precision unidirectional current sensing in automotive powertrain and safety-critical systems. It delivers fixed 20 V/V gain with ±0.5% max gain error over temperature, −2 V to +65 V common-mode input range, and operates from −40°C to +150°C. Used in diesel injection controls and engine management, it interfaces directly with ADCs via buffered outputs.
For engineers reviewing the AD8213WHRMZ-RL datasheet, AD8213WHRMZ-RL pinout, AD8213WHRMZ-RL application, or AD8213WHRMZ-RL equivalent, key selection criteria include its automotive-grade H-grade temperature rating, dual-channel independent filtering capability (CF1/CF2), high CMRR (>100 dB at dc), and survival up to +68 V common-mode voltage - critical for 12 V/24 V battery-referenced high-side sensing.
Technical Context
The AD8213WHRMZ-RL implements two independent, matched current-sense amplifiers with proprietary offset circuitry and internal 20 kΩ filter resistors. Each channel features rail-to-rail output buffering, differential input voltage handling up to 250 mV, and maintains linearity across full common-mode range (−2 V to +65 V) independent of 5 V supply.
Its input stage uses high-impedance topology (5 MΩ common-mode >5 V) and precision-trimmed gain resistors (0.01% matching), enabling accurate shunt-based current measurement without external gain-setting components. The CF1/CF2 pins allow low-pass filtering before amplification, preserving CMRR and avoiding noise amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V fixed, ±0.5% max error over −40°C to +150°C - eliminates calibration drift in under-hood environments. |
| Common-Mode Input Range | −2 V to +65 V continuous; −3 V to +68 V survival - supports direct connection to 12 V/24 V battery rails with margin. |
| CMRR | 120 dB typical at dc (VCM > 5 V) - rejects battery ripple and switching noise in motor control feedback loops. |
| Input Offset Voltage (RTI) | ±2.2 mV max over temperature - enables accurate sub-ampere current resolution with 100 mΩ shunts. |
| Small-Signal Bandwidth | 500 kHz - captures fast transients in solenoid actuation and PWM-driven loads. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V automotive LDOs; quiescent current 4.5 mA total (both channels). |
| Operating Temperature | −40°C to +150°C (H grade) - qualified for engine bay and transmission control module placement. |
Pinout & Package
AD8213WHRMZ-RL is housed in a 10-lead MSOP (RM-10) package, 3.0 mm × 3.0 mm × 1.1 mm, compliant with JEDEC MO-187-BA. Pin 1 identifier located at top-left corner with 15° max chamfer; coplanarity ≤0.10 mm.
| 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 minimizes loading error. |
| 2 (+IN2) | Noninverting input, Channel 2 | Connects to shunt resistor high-side terminal; common-mode tolerant up to +68 V. |
| 3 (GND) | Analog ground reference | Single-point return for both channels; decoupling capacitor must be placed adjacent to this pin. |
| 4 (OUT2) | Buffered output, Channel 2 | Rail-to-rail voltage output (0.15 V to 4.88 V); drives ADC inputs directly without level-shifting. |
| 5 (CF2) | Filter capacitor node, Channel 2 | Connects external capacitor to GND to form 20 kΩ–C low-pass filter; preserves gain accuracy and CMRR. |
| 6 (CF1) | Filter capacitor node, Channel 1 | Independent filtering path per channel; enables differential noise rejection in multi-load systems. |
| 7 (OUT1) | Buffered output, Channel 1 | Electrically isolated from OUT2; supports simultaneous monitoring of two independent current paths. |
| 8 (V+) | Positive supply | Accepts 4.5 V–5.5 V; internal regulation ensures stable biasing across wide battery voltage swings. |
| 9 (+IN1) | Noninverting input, Channel 1 | High-impedance input referenced to battery; enables bidirectional sensing when used with external reference. |
| 10 (−IN1) | Inverting input, Channel 1 | Paired with +IN1 for first shunt; matched input structure ensures <1 ppm/°C inter-channel gain drift. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current sense channels | Enables concurrent monitoring of engine injector and fuel pump currents on single IC - reduces BOM count and PCB area. |
| Automotive-qualified H-grade (−40°C to +150°C) | Validated for AEC-Q100 Grade 0; supports placement in transmission control units and cylinder head-mounted sensors. |
| Integrated 20 kΩ filter resistors (CF1/CF2) | Eliminates need for external RC networks; prevents gain/CMRR degradation while suppressing PWM switching noise. |
| 120 dB typical CMRR at dc | Maintains accuracy despite battery voltage fluctuations and alternator ripple - critical for closed-loop torque control. |
| ±4000 V HBM ESD rating | Withstands assembly handling and in-vehicle electrostatic discharge without latch-up or parametric shift. |
Applications
| Diesel Injection Control | Transmission Control Unit |
|---|---|
|
Use Scenario: Real-time monitoring of solenoid coil current during precise fuel metering pulses in high-pressure common-rail systems. IC Role / Device Role / Timing Role: Dual-channel AD8213WHRMZ-RL measures injector drive current (Channel 1) and return-path recirculation current (Channel 2) with <100 ns overload recovery. Use Value: Enables closed-loop current shaping to reduce combustion noise and meet Euro 6 emissions limits without adding discrete op-amps or ADCs. |
Use Scenario: Monitoring clutch pack engagement current and hydraulic valve solenoid current in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: AD8213WHRMZ-RL provides two isolated, temperature-stable analog outputs for transmission controller ADC sampling at 10 kSPS. Use Value: Supports adaptive shift scheduling by detecting coil aging via long-term current profile drift - no firmware update required. |
| Engine Management System | Electric Power Steering (EPS) |
|
Use Scenario: High-side current sensing of ignition coil primary current and throttle actuator motor current in gasoline direct injection engines. IC Role / Device Role / Timing Role: AD8213WHRMZ-RL channels operate independently with separate CF filters to reject spark plug RFI and PWM noise. Use Value: Delivers <±0.5% gain error over full under-hood temperature range, enabling robust misfire detection and torque estimation. |
Use Scenario: Monitoring assist motor phase current and column torque sensor supply current in rack-assist EPS modules. IC Role / Device Role / Timing Role: AD8213WHRMZ-RL interfaces directly with 12-bit SAR ADCs in MCU; outputs remain linear down to 2 mV differential input. Use Value: Achieves ASIL-B compliance by providing redundant current data streams for functional safety monitoring without external signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056AUB+T | Single-channel, 100 V common-mode, 100 kHz bandwidth, ±1% gain error | Limited to one current path; lower bandwidth insufficient for fast solenoid slew rates | Choose only if single-channel monitoring suffices and cost sensitivity outweighs thermal performance needs. |
| INA240A1QDRQ1 | Dual-channel, 80 V common-mode, 400 kHz bandwidth, ±0.6% gain error, integrated 2.5 V reference | Lower temperature rating (−40°C to +125°C); lacks dedicated CF pins for pre-amplifier filtering | Select when reference voltage generation is needed but under-hood placement above 125°C is not required. |
Compared with MAX40056AUB+T and INA240A1QDRQ1, AD8213WHRMZ-RL uniquely combines dual-channel operation, +150°C rating, and dedicated CF filtering - making it the only option qualified for simultaneous high-bandwidth, high-temperature current sensing in diesel engine control modules.
Availability
AD8213WHRMZ-RL is available at Aetrix Electronics and suitable for diesel injection controls, transmission control units, engine management systems, and electric power steering requiring stable component supply across automotive production lifecycles.
Supply support for AD8213WHRMZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD8213 product line delivers precision current sensing for automotive safety and powertrain applications, engineered specifically to replace discrete op-amp + resistor solutions in harsh under-hood environments.
FAQ
What is the maximum common-mode voltage the AD8213WHRMZ-RL can survive?
The AD8213WHRMZ-RL survives continuous common-mode voltages from −3 V to +68 V, exceeding its operating range of −2 V to +65 V. This margin accommodates load-dump transients and battery jump-start conditions in 12 V/24 V automotive systems without damage or parameter shift.
Does the AD8213WHRMZ-RL support bidirectional current sensing?
Yes, the AD8213WHRMZ-RL supports bidirectional sensing using external reference circuitry: Channel 1 monitors load current (ILOAD) and Channel 2 monitors charge current (ICHARGE) across a shared shunt, as shown in Figure 31 of the datasheet. Its dual architecture enables true independent bidirectional measurement without cross-talk.
How does the CF1 and CF2 pin filtering work in the AD8213WHRMZ-RL?
The AD8213WHRMZ-RL integrates precision 20 kΩ resistors between each input pair and the CF1/CF2 pins. Connecting an external capacitor from CF1 or CF2 to GND forms a first-order low-pass filter before amplification, rejecting differential noise without degrading CMRR or gain accuracy - unlike post-amplifier RC filters.
What is the output voltage swing specification for the AD8213WHRMZ-RL at +150°C?
At −40°C to +150°C (H grade), the AD8213WHRMZ-RL guarantees an output voltage range of 0.15 V to 4.88 V with 25 kΩ load. This rail-to-rail capability ensures compatibility with 12-bit ADCs having 0.5 V–4.5 V input ranges, even at maximum junction temperature.
Is the AD8213WHRMZ-RL pin-compatible with other AD8213 variants?
Yes, all AD8213 variants including AD8213WHRMZ-RL use identical 10-lead MSOP (RM-10) packaging and pinout. The W and H suffixes denote automotive qualification and extended temperature grade - electrical and mechanical interfaces remain fully interchangeable in existing layouts.
AD8213WHRMZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- ±0.25%
- Voltage - Input:
- -2V ~ 65V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
AD8213WHRMZ-RL FAQ
1.How can I place an order for AD8213WHRMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8213WHRMZ-RL 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 AD8213WHRMZ-RL reliable?
The price and inventory of AD8213WHRMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8213WHRMZ-RL is usually 5 days.
3.What payment methods are accepted for AD8213WHRMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8213WHRMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8213WHRMZ-RL?
AD8213WHRMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8213WHRMZ-RL 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 AD8213WHRMZ-RL?
For technical support, including AD8213WHRMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8213WHRMZ-RL requirements.
6.How does Aetrix verify that AD8213WHRMZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8213WHRMZ-RL 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 AD8213WHRMZ-RL meets industry standards.
7.What is the process for return or replacement of AD8213WHRMZ-RL?
All AD8213WHRMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8213WHRMZ-RL, 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 AD8213WHRMZ-RL part is unused and in its original packaging.
Return procedure for AD8213WHRMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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