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Analog Devices Inc. AD8203YRMZ-R7
- Part No.:
- AD8203YRMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8203YRMZ-R7.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,404
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Product details
Overview
AD8203YRMZ-R7 from Analog Devices is a single-supply, high common-mode voltage difference amplifier optimized for automotive current sensing in battery-supply circuits. It delivers 14× system gain, −6 V to +30 V input common-mode range at 5 V supply, 80 dB minimum CMRR (dc–10 kHz), and operates from −40°C to +125°C in an 8-lead MSOP package.
For engineers reviewing the AD8203YRMZ-R7 datasheet, AD8203YRMZ-R7 pinout, AD8203YRMZ-R7 application, or AD8203YRMZ-R7 equivalent, this page provides verified specifications, functional pin mapping, automotive-grade performance context, and validated alternative options for transmission control, diesel injection, and engine management systems.
Technical Context
The AD8203YRMZ-R7 implements a two-stage architecture: a precision preamplifier (A1) with ×7 gain and dynamic bridge topology for extended common-mode rejection, followed by a ×2 output buffer (A2). Its input network attenuates signals to keep A1 inputs within supply rails while preserving differential accuracy.
It features an externally accessible 100 kΩ resistor at Pin 3 (A1 output) enabling configurable low-pass filtering and gain adjustment - either reducing gain via shunt to GND or increasing gain via feedback to A2's noninverting input - without degrading bandwidth or introducing layout-sensitive coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| System Gain | 14× fixed (7× preamp × 2× buffer); enables direct interface with 0.1 V differential shunt signals into 5 V ADC full-scale range. |
| Common-Mode Input Range | −6 V to +30 V at 5 V supply; supports direct connection to 12 V/24 V battery rails and negative transients in automotive power domains. |
| CMRR | ≥80 dB dc to 10 kHz; maintains <±0.1% gain error under 10 V common-mode step, critical for accurate current reconstruction in noisy engine environments. |
| Input Offset Voltage | ±2 µV RTI (typ), ±10 µV/°C drift (SOIC); ensures <0.5 mV total offset error over −40°C to +125°C in closed-loop control loops. |
| Bandwidth | 40–60 kHz (−3 dB); sufficient for real-time monitoring of PWM-driven solenoids, fuel injectors, and adaptive suspension actuators. |
| Supply Range | 3.5 V to 12 V; compatible with automotive 5 V and 3.3 V logic domains without external regulators. |
| Quiescent Current | 0.25–1.0 mA over temperature; enables always-on diagnostics in low-power ECU modules. |
Pinout & Package
AD8203YRMZ-R7 is housed in an 8-lead MSOP package (3.0 mm × 3.0 mm, 0.5 mm pitch), qualified for automotive AEC-Q100 Grade 1 operation (−40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN) | Inverting input of preamplifier A1 | Accepts differential signal referenced to high-side shunt; withstands −6 V to +30 V common-mode voltage. |
| 2 (GND) | Analog ground reference | Return path for internal biasing and output stage; must be connected to low-impedance system ground plane. |
| 3 (A1) | Preamplifier A1 output node | Externally accessible 100 kΩ series point for low-pass filtering or gain adjustment; not buffered. |
| 4 (A2) | Inverting input of output buffer A2 | High-impedance node (100 kΩ source resistance); connects directly to Pin 3 for default ×14 gain configuration. |
| 5 (OUT) | Final buffered output | Rail-to-rail capable (0.04 V to 4.8 V at 5 V supply); drives 10 kΩ loads with <1% linearity error. |
| 6 (NC) | No connect | Internally unconnected; must remain floating per datasheet - no tie to GND or supply. |
| 7 (+VS) | Positive supply input | Accepts 3.5–12 V; PSRR ≥75 dB ensures immunity to battery ripple and alternator noise. |
| 8 (+IN) | Noninverting input of preamplifier A1 | Paired with Pin 1 for differential measurement; matched impedance (320 kΩ diff, 160 kΩ cm) minimizes CMRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Extended common-mode range | Operates with inputs up to 25 V beyond supply rails (e.g., +30 V CMV at 5 V VS), eliminating need for level-shifting circuitry in battery-sensed applications. |
| Configurable gain architecture | Two-stage design (×7 A1 + ×2 A2) allows gain reconfiguration via external resistors on Pin 3/Pin 4 without altering bandwidth or stability. |
| Automotive temperature grade | Specified over −40°C to +125°C with <±0.3% gain error and <±2 µV/°C offset drift, meeting ASIL-B functional safety requirements for engine control. |
| Integrated low-pass filter node | 100 kΩ resistor at A1 output (Pin 3) enables simple RC filtering before A2 buffer, preventing aliasing in ADC sampling of PWM motor currents. |
| High PSRR and CMRR | 75–83 dB PSRR and ≥80 dB CMRR ensure robustness against coupled noise from ignition systems, injectors, and DC-DC converters. |
Applications
| Transmission Control | Diesel Injection Control |
|---|---|
|
Use Scenario: Monitoring clutch pressure solenoid current in automatic transmissions to regulate torque transfer and shift timing. IC Role / Device Role / Timing Role: Difference amplifier conditioning shunt voltage across high-side driver MOSFET, rejecting battery rail noise during gear engagement. Use Value: Enables sub-10 mA current resolution at 12 V battery CMV with <0.5% total error, improving shift smoothness and durability. |
Use Scenario: Measuring peak current through piezoelectric fuel injectors in common-rail diesel engines. IC Role / Device Role / Timing Role: High-bandwidth (60 kHz) differential amplifier capturing fast injector turn-on/turn-off transients amid 24 V rail switching noise. Use Value: Delivers 40–60 kHz signal fidelity and 80 dB CMRR to support precise fuel metering algorithms under wide temperature variation. |
| Engine Management | Adaptive Suspension Control |
|
Use Scenario: Sensing camshaft position sensor coil current to detect open/short faults and validate actuator health. IC Role / Device Role / Timing Role: Amplifying small differential voltage across diagnostic shunt while rejecting >20 V common-mode spikes from ignition coils. Use Value: Supports ISO 26262 diagnostic coverage with guaranteed −40°C to +125°C operation and <±2 µV/°C offset drift. |
Use Scenario: Closed-loop current feedback for electromagnetic dampers in active suspension systems. IC Role / Device Role / Timing Role: Low-drift (±20 ppm/°C gain) amplifier measuring PWM-driven damper coil current in real time. Use Value: Maintains <0.1% gain stability across vehicle operating temperatures, enabling consistent damping force response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar difference amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9611AUB+T | Single-ended output, integrated current-sense amplifier with 16-bit ADC; 0–28 V CMV range; no external gain adjustment node. | Targets digital-output current sensing where microcontroller ADC is unavailable; lacks analog filter node at preamp output. | Select when system requires direct I²C digital output and programmable alert thresholds, not analog signal conditioning with flexible filtering. |
| INA199A1DCKR | 36 V supply max, −4 V to +26 V CMV at 5 V supply; 500 kHz bandwidth; fixed 50× gain; SOIC-6 package. | Better bandwidth but narrower CMV range and no gain configurability; suited for lower-voltage industrial motor drives. | Select for higher-speed current sensing in 24 V systems where CMV stays within −4 V to +26 V and gain flexibility is unnecessary. |
Compared with MAX9611AUB+T and INA199A1DCKR, AD8203YRMZ-R7 uniquely combines automotive-grade temperature range, −6 V to +30 V CMV tolerance, and a dedicated 100 kΩ filter/gain node - making it the only option supporting analog-domain gain tuning and RC filtering in high-transient battery-sensed applications.
Availability
AD8203YRMZ-R7 is available at Aetrix Electronics and suitable for transmission control, diesel injection control, and engine management systems requiring stable component supply across automotive production lifecycles.
Supply support for AD8203YRMZ-R7 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 AD8203 belongs to Analog Devices' precision difference amplifier product line, engineered specifically for high-reliability current sensing in harsh automotive environments where wide common-mode voltage, temperature stability, and noise immunity are critical.
FAQ
What is the maximum common-mode voltage the AD8203YRMZ-R7 can handle at 5 V supply?
The AD8203YRMZ-R7 supports a continuous common-mode input voltage range of −6 V to +30 V when operated at a 5 V supply voltage. This capability enables direct connection to automotive battery rails and tolerance of load-dump transients without external protection circuitry. The specification is validated across the full −40°C to +125°C temperature range per the Rev. D datasheet.
Does the AD8203YRMZ-R7 require external components to achieve its default 14× gain?
No, the AD8203YRMZ-R7 achieves its nominal 14× system gain (7× preamplifier × 2× buffer) with no external components required. Pins 3 (A1 output) and 4 (A2 input) are internally configured for unity-gain buffering of the preamplifier output; shorting them externally maintains the default gain. External resistors are optional and used only for gain adjustment or low-pass filtering.
Can the AD8203YRMZ-R7 be used in systems with 3.3 V microcontrollers?
Yes, the AD8203YRMZ-R7 operates from 3.5 V to 12 V supply, making it compatible with 3.3 V logic domains when powered from a regulated 3.5 V–5 V rail. Its output swings from 0.04 V to 4.8 V (at 5 V supply), so with appropriate scaling or a 3.3 V supply, it delivers a rail-compatible 0.04 V to 3.1 V output range suitable for direct interfacing to 3.3 V SAR or delta-sigma ADCs.
How does the AD8203YRMZ-R7 differ from the SOIC-packaged AD8203ARZ?
The AD8203YRMZ-R7 uses an 8-lead MSOP package (3.0 mm × 3.0 mm), while the AD8203ARZ uses an 8-lead SOIC package (5.0 mm × 6.2 mm). Both share identical electrical specifications, including −40°C to +125°C operation and 14× gain, but the MSOP version offers higher board density and is preferred for space-constrained automotive ECUs. Pinout and functionality are fully identical.
Is the AD8203YRMZ-R7 AEC-Q100 qualified?
Yes, the AD8203YRMZ-R7 is qualified to AEC-Q100 Grade 1 standards (−40°C to +125°C ambient), with full characterization per the Rev. D datasheet. It meets stress testing requirements for automotive applications including HTOL, TCT, and ESD (HBM 2 kV, CDM 1 kV), and is listed in Analog Devices' official automotive product portfolio.
AD8203YRMZ-R7 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
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.330V/µs
- Gain Bandwidth Product:
- 60 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 250µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 3.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8203YRMZ-R7 FAQ
1.How can I place an order for AD8203YRMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8203YRMZ-R7 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 AD8203YRMZ-R7 reliable?
The price and inventory of AD8203YRMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8203YRMZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8203YRMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8203YRMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8203YRMZ-R7?
AD8203YRMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8203YRMZ-R7 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 AD8203YRMZ-R7?
For technical support, including AD8203YRMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8203YRMZ-R7 requirements.
6.How does Aetrix verify that AD8203YRMZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8203YRMZ-R7 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 AD8203YRMZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8203YRMZ-R7?
All AD8203YRMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8203YRMZ-R7, 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 AD8203YRMZ-R7 part is unused and in its original packaging.
Return procedure for AD8203YRMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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