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Analog Devices Inc. AD8219BRMZ-RL
- Part No.:
- AD8219BRMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8219BRMZ-RL.pdf
- Description:
- IC CURRENT MONITOR 0.3% 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
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Product details
Overview
AD8219BRMZ-RL from Analog Devices is a zero-drift, unidirectional current shunt monitor IC designed for high-side current sensing in industrial and telecom power systems. It provides fixed 60 V/V gain, ±50 µV typical input offset voltage, ±100 nV/°C offset drift, and operates from 4 V to 80 V common-mode input range - enabling precision measurement across shunt resistors in 48 V telecom power supplies and motor control bias circuits.
For engineers reviewing the AD8219BRMZ-RL datasheet, AD8219BRMZ-RL pinout, AD8219BRMZ-RL application, or AD8219BRMZ-RL equivalent, this device is selected for high-voltage unidirectional current monitoring where temperature stability, low offset drift, and rail-to-rail output compatibility with ADCs are critical design requirements.
Technical Context
The AD8219BRMZ-RL implements a precision difference amplifier core with matched 1.5 MΩ/25 kΩ resistor network (60 V/V gain), integrated LDO, and internal output clamping at 5.6 V. Its zero-drift architecture ensures stable performance across −40°C to +125°C without external calibration.
It supports two supply configurations: VS pin connected directly to +IN (leveraging internal LDO) or driven by an independent 4 V–80 V supply. Input bias current varies with common-mode voltage (130–220 µA), and CMRR remains ≥94 dB over temperature and frequency up to 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V fixed, ±0.3% max error over −40°C to +125°C - eliminates gain calibration in production. |
| Input Offset Voltage | ±50 µV typical (±300 µV max over temp) - enables accurate sub-mA current resolution with 100 mΩ shunts. |
| Offset Drift | ±100 nV/°C typical - maintains <1 µV total drift over full industrial temperature range. |
| Common-Mode Range | 4 V to 80 V continuous - supports direct sensing in 48 V telecom, battery-powered motor drives, and base station PA bias rails. |
| CMRR | 110 dB typical at dc, ≥94 dB over temp - rejects noise from switching regulators and high-voltage transients. |
| Small-Signal Bandwidth | 500 kHz - captures fast current transients in motor commutation and power supply fault detection. |
| Supply Current | 800 µA max over temperature - enables low-power operation in always-on monitoring circuits. |
Pinout & Package
The AD8219BRMZ-RL is housed in an 8-lead MSOP (RM-8) package per JEDEC MO-187-AA, with 0.65 mm pitch and exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting input | High-impedance node connected to shunt high-side; also serves as VS supply source when tied together. |
| VS (Pin 2) | Power supply input | Accepts 4 V–80 V; powers internal LDO and amplifier core - must not float. |
| NC (Pin 3) | No connect | Internally unconnected; must remain unconnected on PCB. |
| GND (Pin 4) | Analog ground reference | Return path for output stage and internal LDO; requires low-impedance connection to system ground. |
| OUT (Pin 5) | Buffered voltage output | Low-impedance (2 Ω), rail-to-rail capable output clamped to 5.6 V max - directly interfaces with 5 V ADCs. |
| NC (Pin 6) | No connect | Internally unconnected; must remain unconnected on PCB. |
| NC (Pin 7) | No connect | Internally unconnected; must remain unconnected on PCB. |
| −IN (Pin 8) | Inverting input | High-impedance node connected to shunt low-side; differential input range limited to ±83 mV. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift amplifier core | ±100 nV/°C offset drift enables stable current measurement over full −40°C to +125°C range without recalibration. |
| Integrated LDO | Allows VS to be tied directly to +IN - eliminates need for external supply rail in high-side sensing configurations. |
| Output voltage clamping | Hard clamp at 5.6 V protects downstream ADC inputs from overvoltage during common-mode transients or overload. |
| High common-mode rejection | 110 dB CMRR at dc ensures accurate differential measurement even with noisy 48 V bus or switching regulator coupling. |
| Wide input differential range | 0–83 mV input range supports use of low-value, low-power shunts (e.g., 1 mΩ–100 mΩ) while maintaining linearity. |
Applications
| 48 V Telecom Power Monitoring | Base Station Power Amplifier Bias Control |
|---|---|
|
Use Scenario: Real-time monitoring of load current in distributed 48 V DC power distribution units feeding remote radio units. IC Role / Device Role / Timing Role: High-side current shunt monitor converting millivolt-level shunt voltage to buffered 0–3.6 V analog output for ADC sampling. Use Value: Enables precise power budgeting and fault detection with <1% total error over temperature, leveraging ±50 µV offset and 60 V/V gain stability. |
Use Scenario: Closed-loop bias current regulation for GaN-based RF power amplifiers in 5G macro base stations. IC Role / Device Role / Timing Role: Unidirectional current sensor measuring PA quiescent current to maintain optimal linearity and efficiency. Use Value: Maintains <±0.5% gain error across thermal cycling due to ±5 ppm/°C gain drift and zero-drift architecture. |
| Unidirectional Motor Control | Precision High-Voltage Current Sources |
|
Use Scenario: Phase current sensing in brushed DC or stepper motor drivers operating from 24 V–72 V battery supplies. IC Role / Device Role / Timing Role: High-side shunt amplifier providing isolated, ground-referenced analog feedback to motor controller MCU. Use Value: Delivers 500 kHz bandwidth and 1 V/µs slew rate to capture rapid current changes during commutation without distortion. |
Use Scenario: Output current regulation in programmable laboratory power supplies delivering up to 80 V at 10 A. IC Role / Device Role / Timing Role: Precision current sense element in feedback loop of high-voltage linear or hybrid regulators. Use Value: Achieves <0.01% full-scale error using ±200 µV max RTI offset and 110 dB CMRR to reject supply ripple and EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current shunt monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 500 V/V gain option, ±150 nV/°C offset drift, AEC-Q100 qualified, 2.7–5.5 V supply only - requires level-shifting for >5 V common-mode. | Targeted at automotive motor control; lacks native 4–80 V common-mode support. | Select when AEC-Q100 compliance and higher gain are required, and external level-shifting is acceptable. |
| LTC6101BCS5#TRMPBF | 100 V/V gain, ±200 µV offset, ±1 µV/°C drift, no internal LDO - requires separate 2.7–60 V supply for VS. | Higher gain but poorer drift performance; suitable for cost-sensitive industrial designs with external supply available. | Select when higher gain is needed and system already provides a clean, regulated auxiliary supply for VS. |
Compared with INA240A1QDRQ1 and LTC6101BCS5#TRMPBF, the AD8219BRMZ-RL uniquely combines native 4–80 V common-mode operation, integrated LDO, and ±100 nV/°C drift - making it optimal for self-powered high-side sensing in telecom and industrial power without auxiliary rails or calibration.
Availability
AD8219BRMZ-RL is available at Aetrix Electronics and suitable for 48 V telecom power monitoring, base station power amplifier bias control, and unidirectional motor control requiring stable component supply across extended temperature and high-voltage operating conditions.
Supply support for AD8219BRMZ-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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The AD8219BRMZ-RL belongs to Analog Devices' precision current sense amplifier product line, engineered for high-voltage, high-accuracy unidirectional current monitoring in telecom infrastructure, industrial automation, and power management systems.
FAQ
What is the maximum common-mode input voltage the AD8219BRMZ-RL can withstand continuously?
The AD8219BRMZ-RL supports a continuous common-mode input voltage range of 4 V to 80 V. Its absolute maximum rating allows survival at −0.3 V to +85 V, but sustained operation above 80 V may compromise accuracy or reliability. This makes the AD8219BRMZ-RL ideal for 48 V telecom and industrial power rails where long-term stability at rated voltage is essential.
Can the AD8219BRMZ-RL operate without an external power supply?
Yes - the AD8219BRMZ-RL includes an internal LDO that allows the VS pin to be connected directly to the +IN pin. When the input common-mode voltage is within 4 V to 80 V, the internal LDO powers the amplifier core, eliminating the need for a separate supply rail. This simplifies layout in high-side sensing applications and is explicitly supported in the AD8219BRMZ-RL datasheet.
What is the output voltage limit of the AD8219BRMZ-RL, and why is it clamped?
The AD8219BRMZ-RL output is internally clamped to a maximum of 5.6 V when the +IN voltage exceeds 5.6 V. When +IN is below 5.6 V, the output reaches up to VS − 0.1 V. This clamping protects downstream ADC inputs from overvoltage damage during transients or fault conditions - a key safety feature confirmed in the AD8219BRMZ-RL functional block diagram and output clamping section.
How does the AD8219BRMZ-RL achieve its low offset drift performance?
The AD8219BRMZ-RL uses a proprietary zero-drift amplifier core with auto-zeroing architecture, resulting in ±100 nV/°C typical offset drift over −40°C to +125°C. This is verified in Figure 3 of the AD8219BRMZ-RL datasheet and enables stable current measurement without periodic recalibration - critical for long-life telecom and industrial equipment.
Is the AD8219BRMZ-RL pin-compatible with other members of the AD821x family?
No - the AD8219BRMZ-RL is not pin-compatible with AD8210, AD8211, or AD8212. It uses an 8-lead MSOP (RM-8) package with unique pin assignments including three NC pins (3, 6, 7), whereas earlier AD821x devices use SOIC-8 or different MSOP variants with active pins in those locations. This distinction is clearly shown in the AD8219BRMZ-RL pin configuration diagram (Figure 2).
AD8219BRMZ-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:
- ±0.3%
- Voltage - Input:
- 4V ~ 80V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8219BRMZ-RL FAQ
1.How can I place an order for AD8219BRMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8219BRMZ-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 AD8219BRMZ-RL reliable?
The price and inventory of AD8219BRMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8219BRMZ-RL is usually 5 days.
3.What payment methods are accepted for AD8219BRMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8219BRMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8219BRMZ-RL?
AD8219BRMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8219BRMZ-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 AD8219BRMZ-RL?
For technical support, including AD8219BRMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8219BRMZ-RL requirements.
6.How does Aetrix verify that AD8219BRMZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8219BRMZ-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 AD8219BRMZ-RL meets industry standards.
7.What is the process for return or replacement of AD8219BRMZ-RL?
All AD8219BRMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8219BRMZ-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 AD8219BRMZ-RL part is unused and in its original packaging.
Return procedure for AD8219BRMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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