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Texas Instruments AMC1301QDWVQ1
- Part No.:
- AMC1301QDWVQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1301QDWVQ1.pdf
- Description:
- IC OPAMP ISOLATION 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:215
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Product details
Overview
AMC1301QDWVQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified, reinforced isolated amplifier optimized for shunt-based current sensing in high-voltage traction inverters and battery management systems. It features ±250-mV input range, fixed 8.2 V/V gain, ±0.2 mV max offset error, ±3 µV/°C max offset drift, and 7070 VPK reinforced isolation per VDE 0884-17.
For engineers reviewing the AMC1301QDWVQ1 datasheet, AMC1301QDWVQ1 pinout, AMC1301QDWVQ1 application, or AMC1301QDWVQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade operating range (–40°C to +125°C), isolation safety certifications, and real-world use cases in OBC, DC/DC, and BMS subsystems.
Technical Context
The AMC1301QDWVQ1 implements a galvanically isolated sigma-delta modulator architecture with on-chip digital-to-analog conversion, delivering differential analog output (OUTP/OUTN) referenced to low-side ground (GND2). Its input stage is designed for direct connection to shunt resistors, supporting common-mode input voltages up to VDD1 – 2 V and featuring integrated common-mode overvoltage detection at programmable thresholds.
It operates with independent 3.3-V or 5-V supplies on both sides (VDD1/GND1 and VDD2/GND2), achieves 15 kV/µs CMTI, and includes system-level diagnostics such as missing high-side supply detection and failsafe output behavior under fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV differential - enables precise current measurement with low-value shunts without external scaling. |
| Gain | Fixed 8.2 V/V - eliminates gain calibration requirements and reduces system-level error sources. |
| Offset Error | ±0.2 mV max - ensures sub-100-µΩ shunt accuracy at full scale in 12-bit-equivalent current loops. |
| Isolation Rating | 7070 VPK reinforced per VDE 0884-17 - meets functional safety requirements for 1000 VRMS working voltage systems. |
| Supply Voltage | 3.0–5.5 V on both sides - supports interoperability with 3.3-V microcontrollers and 5-V auxiliary rails. |
| CMTI | 15 kV/µs - maintains signal integrity during fast-switching events in SiC/GaN inverter gate drivers. |
| Operating Temp | –40°C to +125°C ambient - qualified for under-hood and powertrain locations per AEC-Q100 Grade 1. |
Pinout & Package
AMC1301QDWVQ1 is housed in a wide-body 8-pin SOIC (DWV) package measuring 5.85 mm × 7.50 mm, with creepage and clearance ≥8.5 mm and reinforced insulation barrier certified to VDE 0884-17 and UL1577 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | High-side power supply | Provides 3.0–5.5 V to input-side circuitry; requires local decoupling near pin 1. |
| INP | Noninverting analog input | Accepts +250 mV relative to INN; must share DC path to GND1 with INN for common-mode bias. |
| INN | Inverting analog input | Accepts –250 mV relative to INP; defines differential input reference with INP. |
| GND1 | High-side analog ground | Reference for input stage and VDD1; must be isolated from low-side ground plane. |
| GND2 | Low-side analog ground | Reference for output stage and VDD2; forms isolated return path for OUTP/OUTN signals. |
| OUTN | Inverting analog output | Differential complement to OUTP; outputs ±2.05 V full-scale swing centered at 1.44 V common-mode. |
| OUTP | Noninverting analog output | Differential complement to OUTN; interfaces directly with SAR ADC inputs or instrumentation amplifiers. |
| VDD2 | Low-side power supply | Provides 3.0–5.5 V to output-side circuitry; decoupling required near pin 8. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 7070 VPK per VDE 0884-17 and 5000 VRMS per UL1577 - enables safe operation across >1 kVRMS potential differences in EV power stages. |
| System Diagnostics | Integrated common-mode overvoltage detection and missing VDD1 reporting - reduces need for external monitoring ICs in ASIL-B designs. |
| Low Drift Performance | ±3 µV/°C offset drift and ±50 ppm/°C gain drift - sustains <0.1% total current measurement error over full automotive temperature range. |
| Failsafe Output | Differential output clamps to –2.55 V under VDD1 loss or common-mode overvoltage - prevents erroneous control decisions in fault conditions. |
| High CMTI | 15 kV/µs common-mode transient immunity - rejects noise from fast-switching IGBT/SiC half-bridges without signal corruption. |
Applications
| Traction Inverter Current Sensing | Onboard Charger (OBC) Input Monitoring |
|---|---|
Use Scenario: Real-time phase current feedback in 400-V/800-V electric vehicle traction inverters using low-inductance shunt resistors. IC Role / Device Role / Timing Role: Isolated analog front-end that digitizes motor phase currents while rejecting >1 kV common-mode transients from PWM switching. Use Value: Enables precise field-oriented control (FOC) with <1% current error across –40°C to +125°C, supporting ASIL-C functional safety goals. |
Use Scenario: Bidirectional AC input current and DC-link voltage sensing in 11-kW+ silicon-carbide OBCs. IC Role / Device Role / Timing Role: High-accuracy isolated amplifier interfacing shunt resistors to MCU ADCs, surviving 100-A peak currents and 100-kHz switching noise. Use Value: Delivers stable gain and offset over temperature, reducing calibration frequency and enabling predictive maintenance algorithms. |
| DC/DC Converter Current Loop | Battery Management System (BMS) Cell Balancing |
Use Scenario: Primary-side current sensing in high-frequency isolated DC/DC converters for 12-V/48-V domain power distribution. IC Role / Device Role / Timing Role: Reinforced-isolated analog signal conditioner providing galvanic separation between primary HV side and secondary LV control domain. Use Value: Eliminates optocoupler latency and aging issues while maintaining 210-kHz bandwidth for fast current-loop response. |
Use Scenario: High-side current monitoring during active cell balancing in 96-cell+ EV battery packs operating up to 1000 V. IC Role / Device Role / Timing Role: Isolated amplifier referenced to floating battery stack potential, rejecting common-mode shifts during charge/discharge cycles. Use Value: Supports accurate coulomb counting and state-of-charge estimation with <0.03% nonlinearity and no gain drift compensation required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1302QDWVQ1 | Wider ±320-mV input range; identical package, pinout, and isolation specs. | Better suited for higher-current shunts (>500 A) where larger differential voltage improves SNR. | Select when system-level full-scale current exceeds 400 A and ±250 mV limits dynamic range. |
| ISO224BDWVR | ±10-V input range; 10-MHz bandwidth; 100 kV/µs CMTI; SOIC-8 package. | Targeted at high-bandwidth voltage sensing (e.g., DC-link monitoring), not precision low-voltage current sensing. | Choose for high-speed voltage isolation where bandwidth >1 MHz and input range >±1 V are required. |
Compared with AMC1302QDWVQ1 and ISO224BDWVR, the AMC1301QDWVQ1 offers optimal trade-off of ultra-low offset drift, automotive qualification, and ±250-mV sensitivity-making it the preferred choice for high-accuracy shunt-based current measurement in traction inverters and OBCs where resolution below 100 µΩ is critical.
Availability
AMC1301QDWVQ1 is available at Aetrix Electronics and suitable for traction inverters, onboard chargers (OBC), and battery management systems (BMS) requiring stable component supply across automotive production lifecycles.
Supply support for AMC1301QDWVQ1 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability ICs for automotive, industrial, and communications markets.
The AMC1301QDWVQ1 belongs to TI's automotive-qualified reinforced isolation amplifier product line, engineered specifically for high-precision current sensing in electric vehicle power electronics with functional safety support.
FAQ
What is the maximum working voltage supported by the AMC1301QDWVQ1 isolation barrier?
The AMC1301QDWVQ1 supports a maximum rated isolation working voltage (VIOWM) of 1000 VRMS at AC sine wave and 1500 VDC, per DIN EN IEC 60747-17 (VDE 0884-17). This enables safe operation in 800-V battery architectures with margin for transients. The AMC1301QDWVQ1 also achieves 5000 VRMS withstand voltage per UL1577 for 1 minute.
Does the AMC1301QDWVQ1 require external calibration for gain or offset over temperature?
No. The AMC1301QDWVQ1 specifies ±0.3% max gain error and ±0.2 mV max offset error across –40°C to +125°C, with drifts limited to ±50 ppm/°C and ±3 µV/°C respectively. These values are guaranteed over temperature and do not require system-level calibration - the AMC1301QDWVQ1 delivers factory-trimmed performance out-of-box.
Can the AMC1301QDWVQ1 interface directly with a 16-bit SAR ADC?
Yes. The AMC1301QDWVQ1 provides differential analog outputs (OUTP/OUTN) with ±2.05 V full-scale swing and 1.44 V common-mode voltage, compatible with most 3.3-V-supplied SAR ADCs having differential input ranges up to ±2.5 V. Its 220 µVRMS output noise and 80 dB SNR at 1 kHz ensure effective 14+ ENOB when paired with appropriate anti-aliasing filtering - the AMC1301QDWVQ1 is designed for direct ADC coupling.
What fault conditions trigger the failsafe output behavior of the AMC1301QDWVQ1?
The AMC1301QDWVQ1 asserts failsafe output (–2.55 V differential) when either the high-side supply VDD1 is absent or the common-mode input voltage exceeds VDD1 – 2 V. This behavior is hardware-enforced and does not require configuration. During these faults, the AMC1301QDWVQ1 maintains defined output states to prevent undefined MCU readings - critical for ASIL-B/C diagnostic coverage.
Is the AMC1301QDWVQ1 pin-compatible with other devices in the AMC130x-Q1 family?
Yes - the AMC1301QDWVQ1 shares identical 8-pin SOIC (DWV) package, pinout, and footprint with AMC1302QDWVQ1 and AMC1311QDWVQ1. This allows drop-in replacement within the same family for design flexibility; however, input range (±250 mV vs ±320 mV) and internal gain differ, so firmware or external scaling may require adjustment when substituting - the AMC1301QDWVQ1 remains mechanically and electrically compatible at the board level.
AMC1301QDWVQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Isolation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 60 µA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 5.9mA
- Current - Output / Channel:
- 13 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AMC1301QDWVQ1 FAQ
1.How can I place an order for AMC1301QDWVQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1301QDWVQ1 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 AMC1301QDWVQ1 reliable?
The price and inventory of AMC1301QDWVQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1301QDWVQ1 is usually 5 days.
3.What payment methods are accepted for AMC1301QDWVQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1301QDWVQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1301QDWVQ1?
AMC1301QDWVQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1301QDWVQ1 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 AMC1301QDWVQ1?
For technical support, including AMC1301QDWVQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1301QDWVQ1 requirements.
6.How does Aetrix verify that AMC1301QDWVQ1 is sourced from the original manufacturer or authorized distributors?
All AMC1301QDWVQ1 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 AMC1301QDWVQ1 meets industry standards.
7.What is the process for return or replacement of AMC1301QDWVQ1?
All AMC1301QDWVQ1 units undergo pre-shipment inspection (PSI). If there is an issue with AMC1301QDWVQ1, 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 AMC1301QDWVQ1 part is unused and in its original packaging.
Return procedure for AMC1301QDWVQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AMC1301QDWVQ1 Tags
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