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Analog Devices Inc. AD8217BRMZ-RL
- Part No.:
- AD8217BRMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8217BRMZ-RL.pdf
- Description:
- IC CURRENT MONITOR 0.1% 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,682
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Product details
Overview
AD8217BRMZ-RL from Analog Devices is a high-voltage, zero-drift current shunt monitor optimized for unidirectional high-side current sensing. It delivers 20 V/V fixed gain with ±0.35% total gain error over −40°C to +125°C, ±100 μV input offset, ±100 nV/°C offset drift, and 100 dB CMRR at DC - enabling precision measurement in 48 V telecom power systems and motor control bias circuits.
For engineers reviewing the AD8217BRMZ-RL datasheet, AD8217BRMZ-RL pinout, AD8217BRMZ-RL application, or AD8217BRMZ-RL equivalent, this device is selected for high-common-mode (4.5 V to 80 V), rail-to-rail buffered output (0.01 V to 5 V), and internal LDO-powered operation - eliminating need for auxiliary supply in battery-referenced shunt configurations.
Technical Context
The AD8217BRMZ-RL implements a precision difference amplifier core with matched 1.5 MΩ/75 kΩ resistor network yielding exact 20 V/V gain, coupled with a zero-drift chopper-stabilized architecture that maintains ±100 nV/°C offset drift across full temperature and common-mode range. Its internal LDO draws supply current directly from the +IN pin, regulating to 5.6 V to power internal circuitry and clamp output voltage.
It operates with differential input range of 0 mV to 250 mV while rejecting common-mode voltages from 4.5 V to 80 V continuously - and survives up to 85 V - making it suitable for direct connection to high-voltage rails without external level-shifting or isolation. Output linearity is preserved across all common-mode voltages within its specified input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V fixed - eliminates external gain-setting components and ensures predictable scaling of shunt voltage to output. |
| Gain Error (Temp) | ±0.35% over −40°C to +125°C - enables accurate current reconstruction without per-unit calibration across automotive/industrial thermal environments. |
| Input Offset Drift | ±100 nV/°C - minimizes thermal-induced baseline shift in long-duration measurements such as battery management or base station PA bias monitoring. |
| CM Input Range | 4.5 V to 80 V continuous - supports direct interface to 48 V telecom, 60 V industrial, and 72 V EV subsystem rails without attenuation or isolation. |
| Output Voltage Range | 0.01 V to 5 V - compatible with standard 5 V ADC references and provides >12-bit dynamic range for 250 mV full-scale shunt signals. |
| Small-Signal Bandwidth | 500 kHz - captures fast current transients in motor commutation or switching power supply load steps. |
| CMRR (DC) | 100 dB typical - suppresses noise coupling from high dv/dt bus lines into measured shunt voltage, critical in noisy base station or motor drive environments. |
Pinout & Package
AD8217BRMZ-RL is housed in an 8-lead MSOP package (JEDEC MO-187-AA, RM-8), with exposed pad for thermal performance and compact footprint (3.0 mm × 3.0 mm). Pin 1 is marked with dot; pins 2, 3, 6, and 7 are no-connect (NC) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting input / LDO input | Accepts high common-mode voltage (4.5–80 V); supplies internal LDO - no external bias required. |
| −IN | Inverting input | Completes differential pair; connects to low side of shunt resistor in high-side sensing configuration. |
| GND | Analog ground reference | System ground return for output buffer and internal circuitry; must be tied to ADC ground for accuracy. |
| OUT | Buffered voltage output | Low-impedance (2 Ω), rail-to-rail (0.01–5 V) output directly drives 25 kΩ ADC inputs without buffering. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift amplifier core | ±100 nV/°C offset drift ensures stable baseline over temperature - critical for long-term current monitoring in telecom base stations. |
| Integrated LDO | Eliminates need for separate supply rail; powered directly from +IN, enabling single-supply high-side sensing in 48 V systems. |
| High common-mode rejection | 100 dB CMRR at DC rejects noise from adjacent high-voltage traces - essential for clean signal acquisition in dense PCB layouts. |
| Clamped output voltage | Max 5.6 V output prevents ADC overvoltage damage even under fault conditions where +IN exceeds 5.6 V. |
| Wide operating temperature | −40°C to +125°C rating supports deployment in under-hood automotive modules and outdoor telecom cabinets. |
Applications
| 48 V Telecom Power Monitoring | Unidirectional Motor Control |
|---|---|
|
Use Scenario: Real-time current monitoring of 48 V DC-DC converters and backup battery feeds in telecom central offices. IC Role / Device Role / Timing Role: High-side current shunt monitor converting millivolt-level shunt voltage to ground-referenced analog output for system controller ADC. Use Value: Enables precise load current reporting and overcurrent protection without optical isolation or auxiliary supply - reducing BOM count and board area. |
Use Scenario: Phase current sensing in brushed DC or stepper motor drivers where current flows only in one direction. IC Role / Device Role / Timing Role: Unidirectional current amplifier providing linear output proportional to motor winding current for closed-loop torque control. Use Value: Delivers <±0.35% gain error across temperature, ensuring consistent torque response without recalibration during thermal cycling. |
| Base Station Power Amplifier Bias | Precision High-Voltage Current Sources |
|
Use Scenario: Monitoring quiescent current of RF power amplifiers in cellular base stations to maintain optimal linearity and efficiency. IC Role / Device Role / Timing Role: High-accuracy, high-CMRR current sensor interfacing between PA drain supply and ground-referenced control loop. Use Value: ±100 μV offset and ±100 nV/°C drift minimize DC bias error drift - preserving EVM and ACLR performance over ambient temperature swings. |
Use Scenario: Closed-loop regulation of high-stability current sources used in test equipment and precision instrumentation. IC Role / Device Role / Timing Role: Feedback element measuring output current through series shunt, delivering amplified voltage to error amplifier. Use Value: 500 kHz bandwidth and 1 V/μs slew rate support fast transient correction; 250 mV differential input range accommodates low-value shunts for minimal power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 20 V/V gain, AEC-Q100 qualified, wider common-mode (−4 V to 80 V), but higher offset drift (±250 nV/°C). | Automotive-grade replacement with enhanced ESD and fault diagnostics - suited for EV traction inverters. | Select when AEC-Q100 compliance and bidirectional capability are required; not drop-in due to different pinout and diagnostic features. |
| MAX4080FASA+ | Fixed 20 V/V gain, 76 V max common-mode, ±150 μV offset, but no internal LDO - requires external 5 V supply. | Cost-sensitive industrial designs where auxiliary supply exists and extended CM survival not needed. | Select when board already provides regulated 5 V; avoid if simplifying supply architecture is priority. |
Compared with INA240A1QDRQ1 and MAX4080FASA+, the AD8217BRMZ-RL uniquely integrates an LDO and achieves superior offset drift (±100 nV/°C), making it optimal for thermally demanding, supply-constrained telecom and industrial applications where long-term DC accuracy is critical.
Availability
AD8217BRMZ-RL is available at Aetrix Electronics and suitable for 48 V telecom power monitoring, unidirectional motor control, and base station power amplifier bias applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for AD8217BRMZ-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, communications, automotive, and consumer markets since 1965.
The AD8217BRMZ-RL belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for high-common-mode, high-accuracy unidirectional current measurement in harsh thermal and electrical environments.
FAQ
What is the maximum common-mode voltage the AD8217BRMZ-RL can withstand continuously?
The AD8217BRMZ-RL supports continuous common-mode input voltages from 4.5 V to 80 V. It can survive transient exposure up to 85 V on both +IN and −IN pins relative to GND, as specified in Absolute Maximum Ratings. This makes AD8217BRMZ-RL suitable for direct connection to 48 V and 60 V industrial rails without external protection circuitry.
Does the AD8217BRMZ-RL require an external power supply?
No, the AD8217BRMZ-RL does not require an external power supply. Its integrated LDO is powered directly from the +IN pin, drawing bias current from the high-side common-mode rail (4.5 V to 80 V). This self-powered architecture eliminates the need for auxiliary supplies - a key advantage of the AD8217BRMZ-RL in space- and cost-constrained designs.
What is the output voltage range of the AD8217BRMZ-RL, and how is it limited?
The AD8217BRMZ-RL delivers a buffered output from 0.01 V to 5 V under standard load conditions (25 kΩ). Internally, the output is clamped to a maximum of 5.6 V when +IN exceeds 5.6 V; otherwise, maximum output equals (V+IN − 100 mV). This clamping protects downstream ADCs and defines the AD8217BRMZ-RL's safe interface envelope.
Can the AD8217BRMZ-RL measure bidirectional current?
No, the AD8217BRMZ-RL is designed exclusively for unidirectional current measurement. Its architecture and output swing (0.01 V to 5 V) do not support negative differential inputs or bipolar output signaling. For bidirectional sensing, consider alternatives like the AD8210 or INA240 - the AD8217BRMZ-RL is optimized for high-side, single-quadrant applications.
What package type and pin count does the AD8217BRMZ-RL use?
The AD8217BRMZ-RL uses an 8-lead Mini Small Outline Package (MSOP), JEDEC MO-187-AA compliant, with package code RM-8. Four pins (2, 3, 6, 7) are no-connect (NC) and must remain unpopulated or floating; active terminals are +IN (Pin 1), −IN (Pin 8), GND (Pin 4), and OUT (Pin 5).
AD8217BRMZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High-Side
- Accuracy:
- ±0.1%
- Voltage - Input:
- 4.5V ~ 80V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8217BRMZ-RL FAQ
1.How can I place an order for AD8217BRMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8217BRMZ-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 AD8217BRMZ-RL reliable?
The price and inventory of AD8217BRMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8217BRMZ-RL is usually 5 days.
3.What payment methods are accepted for AD8217BRMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8217BRMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8217BRMZ-RL?
AD8217BRMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8217BRMZ-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 AD8217BRMZ-RL?
For technical support, including AD8217BRMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8217BRMZ-RL requirements.
6.How does Aetrix verify that AD8217BRMZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8217BRMZ-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 AD8217BRMZ-RL meets industry standards.
7.What is the process for return or replacement of AD8217BRMZ-RL?
All AD8217BRMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8217BRMZ-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 AD8217BRMZ-RL part is unused and in its original packaging.
Return procedure for AD8217BRMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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