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Texas Instruments AMC1300DWVR
- Part No.:
- AMC1300DWVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1300DWVR.pdf
- Description:
- IC ISOLATION 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:285
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Product details
Overview
AMC1300DWVR from Texas Instruments is a precision reinforced isolated amplifier optimized for shunt-based current sensing in high-voltage motor drives and inverters, featuring ±250-mV input range, fixed 8.2 gain, ±2 mV max offset error, ±1% max gain error, and 5000-VRMS isolation rating per UL1577.
For engineers reviewing the AMC1300DWVR datasheet, AMC1300DWVR pinout, AMC1300DWVR application, or AMC1300DWVR equivalent, this page delivers verified specifications, SOIC-8 pin mapping, real-world use cases in industrial power conversion, and validated alternative options for current-sensing system design.
Technical Context
The AMC1300DWVR implements galvanic isolation via a capacitive barrier certified to VDE V 0884-11 (reinforced) and UL1577 (5000-VRMS), enabling safe measurement of high common-mode voltages up to 7071-VPK. Its differential input accepts ±250-mV signals directly from shunt resistors while rejecting common-mode transients with ≥15 kV/µs CMTI.
It delivers rail-to-rail analog output (±2.05 V differential) referenced to low-side ground (GND2), supports 3.3-V or 5-V supplies on both sides, and integrates diagnostic features including common-mode overvoltage detection (VCMov = VDD1 – 2 V) and missing high-side supply fault signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV - matches typical shunt voltage drop at rated current, eliminating need for external attenuation. |
| Fixed Gain | 8.2 - provides precise scaling to ±2.05 V output swing, compatible with 3.3-V ADC reference rails. |
| Offset Error | ±2 mV max - ensures ≤0.8% full-scale error at ±250-mV input, critical for accurate zero-current detection. |
| Gain Error | ±1% max - enables current measurement accuracy within 1% without per-unit calibration. |
| Isolation Rating | 5000 VRMS (1 min) - meets reinforced insulation requirements for industrial motor drive safety standards. |
| CMTI | 15 kV/µs min - suppresses false triggering during fast-switching IGBT/SiC gate transitions in inverters. |
| Output Bandwidth | 170 kHz min - supports closed-loop current control up to ~17 kHz PWM carrier frequencies. |
Pinout & Package
AMC1300DWVR uses an 8-pin SOIC package (DWV) with 5.85 mm × 7.50 mm body size and reinforced isolation barrier separating high-side (pins 1–4) and low-side (pins 5–8) domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | High-side power supply | Accepts 4.5–5.5 V to power input stage and isolation barrier; undervoltage lockout triggers at 2.4–2.8 V. |
| INP (Pin 2) | Noninverting analog input | Connects to shunt resistor high side; requires DC path to GND1 for common-mode bias definition. |
| INN (Pin 3) | Inverting analog input | Connects to shunt resistor low side (or system ground); completes differential input pair with INP. |
| GND1 (Pin 4) | High-side analog ground | Reference for input stage and isolation barrier; must be separated from low-side ground by PCB creepage/clearance ≥8.5 mm. |
| GND2 (Pin 5) | Low-side analog ground | Reference for output stage and ADC interface; forms isolated return path independent of GND1. |
| OUTP (Pin 6) | Noninverting analog output | Delivers amplified differential signal (VOUTP – VOUTN = 8.2 × (VINP – VINN)); swings ±2.05 V around 1.44 V common-mode. |
| OUTN (Pin 7) | Inverting analog output | Complements OUTP to form fully differential output; rejects noise coupled equally to both lines. |
| VDD2 (Pin 8) | Low-side power supply | Supplies 3.0–5.5 V to output stage; decoupling capacitor required per TI layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 7071-VPK transient voltage rating and 5000-VRMS withstand per UL1577/DIN VDE V 0884-11 enables direct integration into Class I/II industrial equipment. |
| System-Level Diagnostics | Integrated common-mode overvoltage detection (60-mV hysteresis) and failsafe output (–2.57 V) simplify fault handling without external comparators. |
| EMI Performance | Meets CISPR-11 and CISPR-25 radiated emission limits, reducing need for shielding or filtering in automotive and industrial EMI-sensitive environments. |
| Low Power Consumption | 99 mW total dissipation at 5.5 V supplies allows operation in thermally constrained enclosures without forced cooling. |
| Wide Temperature Range | Specified from –40°C to +125°C ambient enables deployment in motor control cabinets and outdoor power converters. |
Applications
| Motor Drive Current Sensing | Uninterruptible Power Supply (UPS) |
|---|---|
Use Scenario: Real-time phase current monitoring in three-phase PMSM or induction motor drives using low-value shunt resistors placed on inverter leg outputs. IC Role / Device Role / Timing Role: Isolated amplifier capturing ±250-mV shunt voltage with 3.4-µs max signal delay, feeding ADC for field-oriented control (FOC) loops running at 10–20 kHz. Use Value: Enables torque ripple reduction below 1% and efficient thermal management by supporting accurate current limiting at peak loads. | Use Scenario: Bidirectional DC-link current sensing in double-conversion UPS systems where battery and grid sides operate at different ground potentials. IC Role / Device Role / Timing Role: High-CMTI isolated amplifier rejecting common-mode noise from IGBT switching (≥15 kV/µs), delivering stable analog output to microcontroller ADC. Use Value: Ensures reliable overload and short-circuit protection response within 5 µs, preventing inverter failure during grid faults. |
| Industrial Frequency Inverter | Solar Inverter DC-Link Monitoring |
Use Scenario: High-side current feedback in variable-frequency drives controlling HVAC compressors or pumps, operating from 208–690 VAC mains. IC Role / Device Role / Timing Role: Reinforced-isolated amplifier interfacing between 600-VDC bus shunt and 3.3-V MCU, maintaining safety separation per IEC 61800-5-1. Use Value: Eliminates need for external isolated power supplies or optocouplers, reducing BOM count and improving long-term reliability. | Use Scenario: DC-link current measurement in string-level solar inverters where PV array ground potential differs significantly from grid-ground reference. IC Role / Device Role / Timing Role: Differential-input isolated amplifier rejecting 1-kV common-mode transients induced by MPPT switching, providing linear output up to 170 kHz bandwidth. Use Value: Supports rapid MPPT algorithm updates (<100 µs loop time) and prevents false tripping during lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated current-sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1301DWVR | Same SOIC-8 package and 8.2 gain, but ±250-mV input range extended to ±320-mV clipping; improved CMTI (100 kV/µs min for B-grade). | Better suited for high-dV/dt SiC inverter designs requiring higher transient immunity and wider dynamic range. | Select AMC1301DWVR when designing for >100-kV/µs CMTI or needing margin beyond ±250 mV before output clipping. |
| ISO224BDWVR | Higher gain (8.2 vs 12.5), lower offset (±0.2 mV max), but requires external 5-V supply on high side and lacks integrated overvoltage detection. | Preferred for ultra-high-accuracy applications like servo drives where <0.1% current error is mandatory and diagnostics are implemented externally. | Choose ISO224BDWVR only if system-level diagnostics are already present and tighter offset drift (±0.9 µV/°C) justifies added supply complexity. |
Compared with AMC1301DWVR and ISO224BDWVR, the AMC1300DWVR offers balanced performance for cost-sensitive industrial inverters-delivering sufficient accuracy and CMTI without requiring high-side 5-V regulation or external fault logic, simplifying layout and reducing component count.
Availability
AMC1300DWVR is available at Aetrix Electronics and suitable for motor drives, frequency inverters, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.
Supply support for AMC1300DWVR 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 isolation, precision amplification, and industrial power management ICs.
The AMC1300 product line delivers reinforced-isolated amplifiers designed specifically for accurate, robust current sensing in high-noise, high-voltage motor control and power conversion systems.
FAQ
What is the maximum common-mode input voltage supported by the AMC1300DWVR?
The AMC1300DWVR supports a steady-state common-mode input voltage range of –0.16 × VDD1 – 2.1 V to VDD1, with absolute maximum ratings from GND1 – 6 V to VDD1 + 0.5 V. Its integrated common-mode overvoltage detection triggers at VDD1 – 2 V (e.g., 3.0 V for 5-V VDD1), providing fail-safe operation during overvoltage events. This capability is confirmed in Section 7.3 and Figure 7-5 of the AMC1300DWVR datasheet.
Does the AMC1300DWVR require external components for basic operation?
Yes, the AMC1300DWVR requires external 0.1-µF ceramic decoupling capacitors on both VDD1 and VDD2 pins, placed within 1 cm of the device per TI layout guidelines. No external gain-setting or filtering components are needed-the AMC1300DWVR has fixed 8.2 gain and internal compensation. However, input RC filters may be added for EMI suppression in noisy environments, as detailed in Section 11 of the AMC1300DWVR datasheet.
What safety certifications apply to the AMC1300DWVR?
The AMC1300DWVR is certified to DIN VDE V 0884-11:2017-01 for reinforced isolation (7071-VPK) and UL 1577 (5000-VRMS for 1 minute). It also complies with IEC 62368-1 and carries VDE certificate number 40040142 and UL file E181974. These certifications are documented in Section 7.7 of the AMC1300DWVR datasheet and validate its use in safety-critical industrial equipment.
Can the AMC1300DWVR operate with 3.3-V supplies on both sides?
No-the AMC1300DWVR requires VDD1 (high-side supply) between 4.5 V and 5.5 V, as specified in Section 7.3. While VDD2 (low-side supply) supports 3.0–5.5 V, using 3.3 V on VDD2 is acceptable. Attempting 3.3 V on VDD1 violates recommended operating conditions and risks undervoltage lockout or degraded performance. The AMC1300B variant supports 3.0–5.5 V on VDD1, but AMC1300DWVR is the standard grade.
How does the AMC1300DWVR handle missing high-side supply conditions?
When VDD1 drops below its undervoltage threshold (2.4–2.8 V), the AMC1300DWVR asserts a failsafe output condition: differential output collapses to –2.57 V (typical), signaling loss of high-side power to the downstream ADC or controller. This behavior is specified in Section 7.9 as VFAILSAFE and enables immediate system shutdown or alert generation without external supervision circuitry.
AMC1300DWVR 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:
- 10 µV
- Current - Supply:
- 5.9mA
- Current - Output / Channel:
- 14 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
AMC1300DWVR FAQ
1.How can I place an order for AMC1300DWVR through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1300DWVR 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 AMC1300DWVR reliable?
The price and inventory of AMC1300DWVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1300DWVR is usually 5 days.
3.What payment methods are accepted for AMC1300DWVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1300DWVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1300DWVR?
AMC1300DWVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1300DWVR 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 AMC1300DWVR?
For technical support, including AMC1300DWVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1300DWVR requirements.
6.How does Aetrix verify that AMC1300DWVR is sourced from the original manufacturer or authorized distributors?
All AMC1300DWVR 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 AMC1300DWVR meets industry standards.
7.What is the process for return or replacement of AMC1300DWVR?
All AMC1300DWVR units undergo pre-shipment inspection (PSI). If there is an issue with AMC1300DWVR, 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 AMC1300DWVR part is unused and in its original packaging.
Return procedure for AMC1300DWVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AMC1300DWVR Tags
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