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Texas Instruments AMC1301SDWVR
- Part No.:
- AMC1301SDWVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1301SDWVR.pdf
- Description:
- IC OPAMP ISOLATION 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,368
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Product details
Overview
AMC1301SDWVR from Texas Instruments is a precision reinforced isolated amplifier optimized for shunt-based current sensing in high-voltage systems, featuring ±250-mV input range, fixed 8.2 V/V gain, ±0.2 mV max offset error, ±3 µV/°C max offset drift, and –40°C to +125°C operation.
For engineers reviewing the AMC1301SDWVR datasheet, AMC1301SDWVR pinout, AMC1301SDWVR application, or AMC1301SDWVR equivalent, this device supports accurate real-time current monitoring in motor drives, frequency inverters, and isolated DC/DC converters where galvanic separation and low-drift analog signal integrity are critical.
Technical Context
The AMC1301SDWVR employs a capacitive isolation barrier certified to DIN EN IEC 60747-17 (VDE 0884-17) for 7070 VPK reinforced isolation and UL1577 for 5000 VRMS/1 min, enabling safe interface between high-side shunt resistors and low-side ADCs. Its differential output (OUTP/OUTN) delivers ±2.49 V clipped linear range with 190–210 kHz bandwidth and 15 kV/µs CMTI.
It integrates system-level diagnostics including common-mode overvoltage detection (VCMov = VDD1 – 2 V) and missing high-side supply detection, while operating from 3.0–5.5 V on both sides - supporting 3.3-V or 5-V domain compatibility without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV differential - matches typical shunt voltage drop at rated current, eliminating external scaling. |
| Gain | Fixed 8.2 V/V - provides stable, temperature-invariant amplification; eliminates gain-setting resistor errors. |
| Offset Error | ±0.2 mV max - enables sub-ampere accuracy in 1-mΩ shunt applications at room temperature. |
| Offset Drift | ±3 µV/°C max - ensures ≤0.35 mV total offset shift across –40°C to +125°C, critical for thermal stability. |
| Isolation Rating | 7070 VPK reinforced per VDE 0884-17 - meets IEC 62368-1 safety requirements for industrial HV systems. |
| Supply Range | 3.0–5.5 V on both VDD1 and VDD2 - supports interoperability with 3.3-V microcontrollers and 5-V analog domains. |
| Output Bandwidth | 190–210 kHz - captures fast current transients in PWM-driven motor phases and inverter switching events. |
| CMTI | 15 kV/µs - rejects high dv/dt noise from adjacent power switches without signal corruption. |
Pinout & Package
AMC1301SDWVR is housed in a wide-body 8-pin SOIC (DWV) package measuring 5.85 mm × 7.50 mm, with creepage/clearance ≥8.5 mm and reinforced insulation barrier spanning pins 1–4 (high-side) and 5–8 (low-side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD1 | High-side power supply | Provides 3.0–5.5 V to input stage and isolation transmitter; requires local 100-nF decoupling. |
| 2 - INP | Noninverting analog input | Connects directly to shunt's high-side terminal; requires DC path to GND1 for common-mode bias. |
| 3 - INN | Inverting analog input | Connects to shunt's low-side terminal or system ground; completes differential input pair with INP. |
| 4 - GND1 | High-side analog ground | Reference for input circuitry and isolation barrier primary side; must be separated from low-side ground. |
| 5 - GND2 | Low-side analog ground | Reference for output stage and isolation barrier secondary side; forms isolated return path for OUTP/OUTN. |
| 6 - OUTN | Inverting analog output | Differential output complement; used with OUTP to reject common-mode noise in ADC front-end. |
| 7 - OUTP | Noninverting analog output | Main differential output; delivers amplified, isolated representation of shunt voltage with VCMout ≈ 1.44 V. |
| 8 - VDD2 | Low-side power supply | Provides 3.0–5.5 V to output stage and isolation receiver; independent of VDD1 for true galvanic separation. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation Barrier | 7070 VPK per VDE 0884-17 - enables direct integration into Class I equipment without additional safety components. |
| Integrated Diagnostic Functions | Common-mode overvoltage detection and missing VDD1 alert - reduces need for external supervision circuitry in OBC and UPS designs. |
| Low-Drift Precision Performance | ±0.3% max gain error and ±0.03% max nonlinearity - maintains current measurement fidelity across full industrial temperature range. |
| Differential Output Architecture | OUTP/OUTN with <0.2 Ω output impedance - improves noise immunity and enables direct connection to fully differential ADC inputs. |
| High CMTI and PSRR | 15 kV/µs CMTI and >90 dB PSRR vs both supplies - sustains accuracy in noisy switch-mode power stages with rapid ground shifts. |
Applications
| Motor Drive Current Sensing | Frequency Inverter Phase Monitoring |
|---|---|
|
Use Scenario: Real-time phase current feedback in 3-phase PMSM or induction motor drives using surface-mount shunts on inverter legs. IC Role / Device Role / Timing Role: Isolated analog front-end that conditions and transmits shunt voltage across 600–1000 VDC bus potential to MCU ADC. Use Value: Enables precise field-oriented control (FOC) with <1% current error across –40°C to +125°C, supporting SIL-2 functional safety architecture. |
Use Scenario: Closed-loop current regulation in industrial variable-frequency drives powering pumps, fans, and compressors. IC Role / Device Role / Timing Role: High-bandwidth isolated amplifier capturing fast transient currents during IGBT switching transitions. Use Value: 210 kHz bandwidth and 15 kV/µs CMTI prevent measurement corruption during 10–20 kHz PWM switching, improving torque ripple suppression. |
| Uninterruptible Power Supply (UPS) Battery Monitoring | Onboard Charger (OBC) DC Link Sensing |
|
Use Scenario: Bidirectional battery current measurement in line-interactive UPS systems with 400–800 VDC intermediate bus. IC Role / Device Role / Timing Role: Reinforced-isolated amplifier interfacing between high-voltage battery stack and low-voltage protection MCU. Use Value: 5000 VRMS UL1577 rating satisfies reinforced insulation requirements for double-insulated UPS enclosures per IEC 62040-1. |
Use Scenario: Input and output current sensing in automotive bidirectional OBCs converting AC grid to 400/800 VDC battery packs. IC Role / Device Role / Timing Role: Precision isolated sensor for compliance with ISO 26262 ASIL-B current measurement requirements. Use Value: ±3 µV/°C offset drift and ±50 ppm/°C gain drift ensure <0.5% total error over vehicle lifetime thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1301QDWVRQ1 | Automotive-grade variant qualified per AEC-Q100 Grade 1 (–40°C to +125°C), identical electrical specs but enhanced process controls and traceability. | Required for automotive OEM production; not suitable for cost-sensitive industrial use due to qualification overhead. | Select AMC1301QDWVRQ1 only when ASIL-B compliance and PPAP documentation are mandatory. |
| ISO224BDWVR | Higher gain (8.2 V/V same), wider input range (±10 V), higher supply voltage tolerance (up to 24 V on high-side), larger SOIC-8 package (8.5 mm × 10.3 mm). | Better suited for legacy industrial systems with higher common-mode voltages (>1 kVRMS) and less space-constrained layouts. | Choose ISO224BDWVR when common-mode voltage exceeds 1 kVRMS or high-side supply exceeds 5.5 V. |
Compared with AMC1301QDWVRQ1, the AMC1301SDWVR offers identical precision and isolation performance at lower cost and lead time for industrial applications, while ISO224BDWVR trades package size and supply flexibility for extended voltage range - making AMC1301SDWVR optimal for space-constrained, 3.3/5-V, 1-kVRMS-class systems like motor drives and UPS modules.
Availability
AMC1301SDWVR is available at Aetrix Electronics and suitable for motor drive current sensing, frequency inverter phase monitoring, and uninterruptible power supply (UPS) battery monitoring requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AMC1301SDWVR 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, with decades of expertise in isolation technology and precision signal conditioning.
The AMC1301 product line delivers reinforced-isolated amplifiers designed specifically for high-accuracy current sensing in industrial motor control, renewable energy inverters, and electric vehicle charging systems.
FAQ
What is the maximum working voltage supported by the AMC1301SDWVR isolation barrier?
The AMC1301SDWVR supports a maximum rated isolation working voltage (VIOWM) of 1000 VRMS at AC sine wave and 1500 VDC, per DIN EN IEC 60747-17. This enables safe operation in 690-VAC industrial drives and 800-VDC EV architectures where continuous common-mode stress is present. The AMC1301SDWVR must not be used beyond these limits without additional system-level derating analysis.
Does the AMC1301SDWVR require external gain-setting resistors?
No, the AMC1301SDWVR features a factory-trimmed fixed gain of 8.2 V/V and does not require external resistors. This eliminates resistor tolerance, thermal drift, and layout sensitivity issues associated with discrete gain networks - directly contributing to its ±0.3% max gain error and ±50 ppm/°C gain drift specifications across –40°C to +125°C.
Can the AMC1301SDWVR operate with different supply voltages on each side?
Yes, the AMC1301SDWVR supports independent high-side (VDD1) and low-side (VDD2) supplies ranging from 3.0 V to 5.5 V each. It is commonly configured with 5 V on VDD1 (for improved input SNR) and 3.3 V on VDD2 (to match ADC reference rails), with no synchronization or sequencing required between the two domains.
How does the common-mode overvoltage detection feature work in the AMC1301SDWVR?
The AMC1301SDWVR monitors the average voltage at INP and INN relative to GND1. When (INP + INN)/2 exceeds VDD1 – 2 V, it triggers a failsafe output condition - driving OUTP/OUTN to –2.545 V differential. This alerts the system controller to overvoltage faults such as shunt disconnection or bus overpotential, enabling immediate shutdown before damage occurs.
What is the purpose of the differential output (OUTP/OUTN) in the AMC1301SDWVR?
The differential output in the AMC1301SDWVR rejects common-mode noise induced along PCB traces between the isolator and downstream ADC, especially critical in high-dv/dt environments like IGBT gate drivers. With matched output impedance (<0.2 Ω) and 1.44 V common-mode level, it interfaces directly with fully differential SAR or sigma-delta ADCs without level-shifting or amplification.
AMC1301SDWVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Isolation
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AMC1301SDWVR FAQ
1.How can I place an order for AMC1301SDWVR through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1301SDWVR 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 AMC1301SDWVR reliable?
The price and inventory of AMC1301SDWVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1301SDWVR is usually 5 days.
3.What payment methods are accepted for AMC1301SDWVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1301SDWVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1301SDWVR?
AMC1301SDWVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1301SDWVR 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 AMC1301SDWVR?
For technical support, including AMC1301SDWVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1301SDWVR requirements.
6.How does Aetrix verify that AMC1301SDWVR is sourced from the original manufacturer or authorized distributors?
All AMC1301SDWVR 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 AMC1301SDWVR meets industry standards.
7.What is the process for return or replacement of AMC1301SDWVR?
All AMC1301SDWVR units undergo pre-shipment inspection (PSI). If there is an issue with AMC1301SDWVR, 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 AMC1301SDWVR part is unused and in its original packaging.
Return procedure for AMC1301SDWVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AMC1301SDWVR Tags
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