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Texas Instruments AMC1301DWV
- Part No.:
- AMC1301DWV
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1301DWV.pdf
- Description:
- IC OPAMP ISOLATION 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:282
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Product details
Overview
AMC1301 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 7070-VPK reinforced isolation per VDE 0884-17 - deployed in motor drives and frequency inverters.
For engineers reviewing the AMC1301 datasheet, AMC1301 pinout, AMC1301 application, or AMC1301 equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, safety-certified isolation parameters, and two confirmed alternative parts for current-sensing system design.
Technical Context
The AMC1301 employs a galvanically isolated sigma-delta modulator architecture with magnetic coupling across a reinforced dielectric barrier, supporting up to 1 kVRMS working voltage and 15 kV/µs common-mode transient immunity (CMTI). Its differential analog input accepts ±250 mV full-scale signals directly from shunt resistors without external amplification.
It integrates high-side supply monitoring and common-mode overvoltage detection (VCMov = VDD1 – 2 V), enabling system-level diagnostics. The output stage delivers rail-to-rail differential analog outputs (OUTP/OUTN) referenced to low-side ground (GND2), with 210 kHz bandwidth and 80 dB SNR at 1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV differential - enables direct connection to low-value shunts (e.g., 1–5 mΩ) without gain-stage overhead. |
| Gain | Fixed 8.2 V/V - eliminates calibration drift from programmable gain stages; output spans ±2.05 V for full-scale input. |
| Offset Error | ±0.2 mV max - ensures ≤0.08% full-scale error at 250 mV input, critical for <1% current measurement accuracy. |
| Isolation Rating | 7070 VPK reinforced per VDE 0884-17 - supports functional safety compliance in 1000 VRMS working voltage systems. |
| Temp Range | –40°C to +125°C - fully specified for under-hood automotive, industrial motor control, and OBC thermal environments. |
| CMTI | 15 kV/µs - maintains signal integrity during fast-switching events in SiC/GaN inverter gate drivers. |
| Supply Voltage | 3.0–5.5 V on both sides - allows interoperability with 3.3-V microcontrollers and 5-V auxiliary rails without level-shifting. |
Pinout & Package
AMC1301 is housed in an 8-pin wide-body SOIC (DWV) package measuring 5.85 mm × 7.50 mm, with ≥8.5 mm creepage/clearance and reinforced double insulation for reinforced isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | High-side power supply | Provides 3.0–5.5 V to input-side circuitry; powers internal modulator and diagnostic logic. |
| INP / INN | Differential analog input | Accepts ±250 mV shunt voltage; requires DC path to GND1 to define common-mode input (–0.16×VDD1 – 2.1 V). |
| GND1 | High-side analog ground | Reference for input stage and isolation barrier primary side; must be separated from low-side ground. |
| GND2 | Low-side analog ground | Reference for output stage and ADC interface; forms isolation boundary with GND1. |
| OUTP / OUTN | Differential analog output | Delivers 8.2×(INP–INN) as ±2.05 V swing; compatible with SAR or delta-sigma ADC inputs. |
| VDD2 | Low-side power supply | Supplies 3.0–5.5 V to output-side circuitry; decoupling required per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation Certification | VDE 0884-17 (7070 VPK) and UL 1577 (5000 VRMS) - meets IEC 62368-1 for safety-critical power conversion. |
| System-Level Diagnostics | Integrated common-mode overvoltage detection and missing high-side supply flag - reduces need for external fault monitoring ICs. |
| Low Drift Performance | ±3 µV/°C offset drift and ±50 ppm/°C gain drift - sustains <0.1% total current error over full –40°C to +125°C range. |
| High CMTI | 15 kV/µs - prevents corruption during 100+ A/µs switching transients in 650-V+ motor drives. |
| 3.3-V Operation Support | Validated operation at 3.3 V on both sides - enables direct interface with low-power MCUs and isolated ADCs without LDOs. |
Applications
| Motor Drive Current Sensing | Frequency Inverter Phase Monitoring |
|---|---|
|
Use Scenario: Real-time phase current measurement in 3-phase PMSM/BLDC drives using inline shunt resistors. IC Role / Device Role / Timing Role: Isolated analog front-end converting shunt voltage to differential output for ADC sampling. Use Value: Enables field-oriented control (FOC) with <1% current error across temperature, supporting torque ripple reduction and efficiency optimization. |
Use Scenario: High-bandwidth current feedback in industrial variable-frequency drives (VFDs) operating up to 480 VAC. IC Role / Device Role / Timing Role: Reinforced-isolated signal conditioner interfacing shunt to control MCU's ADC input. Use Value: Maintains measurement fidelity during rapid dV/dt events (≥10 kV/µs), preventing false overcurrent trips and improving system uptime. |
| Onboard Charger (OBC) DC Link Sensing | Uninterruptible Power Supply (UPS) Battery Management |
|
Use Scenario: Bidirectional current monitoring in 3.3-kW+ EV onboard chargers with 400–800 V DC link. IC Role / Device Role / Timing Role: High-accuracy isolated amplifier capturing AC input and DC output currents. Use Value: Supports precise power factor correction (PFC) and battery charge/discharge balancing with ±0.2 mV offset stability. |
Use Scenario: Input/output current sensing in line-interactive UPS systems with 208/240 VAC input and 48 VDC battery stack. IC Role / Device Role / Timing Role: Safety-certified isolation barrier protecting control logic from high-voltage battery faults. Use Value: Enables UL 1778 compliance via reinforced isolation and integrated overvoltage detection, reducing BOM count by one protection IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated current-sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1302DWV | Same DWV package and 8.2 V/V gain, but ±350-mV input range and higher 100 ppm/°C gain drift. | Better suited for higher-current shunts (>5 mΩ); less accurate over temperature than AMC1301. | Select AMC1302DWV only when wider input range is required and tighter gain drift is not critical. |
| ISO224BDWV | 250-mV input, 8.2 V/V gain, but ±1.5 mV offset error and no integrated common-mode overvoltage detection. | Lacks built-in diagnostics; requires external comparator for fault detection in safety-critical designs. | Choose ISO224BDWV where cost sensitivity outweighs diagnostic feature requirements and offset tolerance >0.2 mV is acceptable. |
Compared with AMC1302DWV and ISO224BDWV, the AMC1301 provides the lowest offset error (±0.2 mV) and integrated diagnostics - making it optimal for high-accuracy, safety-compliant current sensing where measurement stability and fault visibility are prioritized over input range or unit cost.
Availability
AMC1301 is available at Aetrix Electronics and suitable for motor drives, frequency inverters, and onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and automotive production programs.
Supply support for AMC1301 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 and embedded processing technologies, with decades of expertise in precision isolation and high-reliability power management solutions.
The AMC1301 belongs to TI's reinforced isolated amplifier product line, designed specifically for accurate, safe current sensing in high-voltage industrial and automotive power systems - emphasizing low drift, high CMTI, and safety certification readiness.
FAQ
What is the maximum working voltage supported by the AMC1301?
The AMC1301 supports a maximum rated isolation working voltage of 1000 VRMS (AC) and 1500 VDC, certified per DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation - enabling use in 690-VAC industrial drives and 800-VDC EV architectures. This rating is validated across its full –40°C to +125°C operating range.
Does the AMC1301 require external components for basic operation?
Yes - the AMC1301 requires 100-nF ceramic decoupling capacitors on both VDD1 and VDD2 pins, placed within 1 cm of the device per TI layout guidelines. No external gain-setting resistors are needed due to its fixed 8.2 V/V gain, but a low-pass RC filter may be added before the ADC to reduce noise if system bandwidth permits.
How does the AMC1301 handle common-mode overvoltage conditions?
The AMC1301 features integrated common-mode overvoltage detection that triggers at VCMov = VDD1 – 2 V (e.g., ~3.3 V when VDD1 = 5.3 V), with 60-mV hysteresis. When exceeded, the output enters a defined failsafe state (–2.545 V differential), signaling fault condition to the host controller without requiring external comparators.
Can the AMC1301 operate with 3.3-V supplies on both sides?
Yes - the AMC1301 is fully specified for 3.0–5.5 V operation on both VDD1 (high-side) and VDD2 (low-side). At 3.3 V, it draws 6.3 mA (typ) on VDD1 and 5.3 mA (typ) on VDD2, delivering full performance including ±0.2 mV offset error and 15 kV/µs CMTI, making it ideal for 3.3-V MCU-based systems.
What is the purpose of the GND1 and GND2 pins on the AMC1301?
GND1 is the high-side analog ground reference for the input stage and isolation barrier primary side; GND2 is the low-side analog ground for the output stage. These grounds must remain physically and electrically separated on the PCB to maintain the reinforced isolation barrier - bridging them invalidates safety certification and risks catastrophic failure.
AMC1301DWV 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AMC1301DWV FAQ
1.How can I place an order for AMC1301DWV through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1301DWV 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 AMC1301DWV reliable?
The price and inventory of AMC1301DWV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1301DWV is usually 5 days.
3.What payment methods are accepted for AMC1301DWV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1301DWV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1301DWV?
AMC1301DWV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1301DWV 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 AMC1301DWV?
For technical support, including AMC1301DWV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1301DWV requirements.
6.How does Aetrix verify that AMC1301DWV is sourced from the original manufacturer or authorized distributors?
All AMC1301DWV 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 AMC1301DWV meets industry standards.
7.What is the process for return or replacement of AMC1301DWV?
All AMC1301DWV units undergo pre-shipment inspection (PSI). If there is an issue with AMC1301DWV, 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 AMC1301DWV part is unused and in its original packaging.
Return procedure for AMC1301DWV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AMC1301DWV Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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