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Texas Instruments AMC1300BDWVR
- Part No.:
- AMC1300BDWVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1300BDWVR.pdf
- Description:
- IC ISOLATION 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,771
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Product details
Overview
AMC1300BDWVR from Texas Instruments is a precision reinforced isolated amplifier optimized for shunt-based current sensing in high-noise motor drive and inverter systems. It features ±250-mV input range, fixed 8.2 gain, ±0.2-mV max offset error, 100 kV/µs min CMTI, and operates with 3.3-V high-side supply across –55°C to +125°C.
For engineers reviewing the AMC1300BDWVR datasheet, AMC1300BDWVR pinout, AMC1300BDWVR application, or AMC1300BDWVR equivalent, this page delivers verified specifications, SOIC-8 pin functions, safety-certified isolation parameters, and validated alternatives for industrial power conversion designs.
Technical Context
The AMC1300BDWVR implements galvanically isolated sigma-delta modulation with magnetic coupling across a reinforced dielectric barrier certified to VDE V 0884-11 (7071 VPK) and UL 1577 (5000 VRMS). Its differential analog input directly interfaces shunt resistors without external level-shifting.
It integrates common-mode overvoltage detection (60-mV hysteresis, VDD1–2 V threshold) and missing high-side supply fault reporting via failsafe output (–2.57 V typical), enabling robust system diagnostics without additional circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV - matches standard low-value shunt resistor voltage drops for accurate current measurement |
| Fixed Gain | 8.2 - provides consistent scaling to ADC input range without calibration-dependent gain stages |
| Offset Error | ±0.2 mV max - enables sub-1% current measurement error at 250-mV full-scale with minimal zero-point drift compensation |
| CMTI | 100 kV/µs min - sustains signal integrity during fast-switching IGBT/SiC gate transitions in motor drives |
| Output Bandwidth | 250 kHz min - supports closed-loop current control up to 20-kHz PWM frequencies with <1% phase lag |
| Isolation Rating | 5000 VRMS / 1 min (UL), 7071 VPK (VDE) - meets reinforced insulation requirements for 690-V AC industrial systems |
| Operating Temp | –55°C to +125°C - qualified for under-hood automotive inverters and harsh-environment industrial drives |
Pinout & Package
AMC1300BDWVR is housed in an 8-pin SOIC (DWV) package measuring 5.85 mm × 7.50 mm, with creepage and clearance ≥8.5 mm per DIN EN 60664-1 for reinforced isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | High-side power supply | 3.0–5.5 V input powering internal modulator and input stage; undervoltage lockout at 2.6 V nominal |
| INP | Noninverting analog input | Accepts +250 mV relative to INN; requires DC path to GND1 for common-mode bias definition |
| INN | Inverting analog input | Reference node for differential shunt voltage; must be tied to GND1 or biased via matched network |
| GND1 | High-side analog ground | Return for input circuitry and VDD1; galvanically isolated from low-side ground domain |
| GND2 | Low-side analog ground | Return for output stage and VDD2; forms isolated reference for ADC interface |
| OUTP | Noninverting analog output | Differential output pair delivering ±2.05 V full-scale centered at 1.44 V common-mode |
| OUTN | Inverting analog output | Complements OUTP; clipping occurs beyond ±2.52 V differential swing |
| VDD2 | Low-side power supply | 3.0–5.5 V supply for output driver; supports 3.3-V or 5-V ADC interface logic levels |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 7071 VPK per VDE V 0884-11 and 5000 VRMS per UL 1577 - eliminates need for external isolation barriers in safety-critical drives |
| Integrated Diagnostics | Common-mode overvoltage detection (60-mV hysteresis) and VDD1 loss reporting via failsafe output - reduces BOM count and firmware diagnostic overhead |
| Low Drift Performance | ±0.9 µV/°C max offset drift and ±30 ppm/°C max gain drift - maintains accuracy over wide temperature ranges without periodic recalibration |
| EMI Compliance | Meets CISPR-11 Class B and CISPR-25 Level 5 - simplifies EMC validation for automotive and industrial equipment |
| High-Side 3.3-V Operation | Supports 3.3-V VDD1 supply - enables direct integration with low-voltage microcontrollers and isolated DC/DC converters |
Applications
| Motor Drive Current Sensing | Inverter Phase Current Monitoring |
|---|---|
Use Scenario: Real-time phase current feedback in three-phase PMSM or induction motor drives using low-ohmic shunt resistors. IC Role / Device Role / Timing Role: Isolated analog front-end converting shunt voltage to differential output for ADC sampling at 10–20 kHz. Use Value: Enables precise torque control and field-oriented control (FOC) with <0.5% current measurement error across –40°C to +125°C. | Use Scenario: High-bandwidth current monitoring in 600-V AC variable-frequency drives for overload protection and dynamic braking. IC Role / Device Role / Timing Role: Reinforced-isolated signal conditioner placed on high-voltage DC bus side, interfacing with low-voltage controller via differential output. Use Value: Survives >100 kV/µs transients during IGBT switching, eliminating false trips and ensuring continuous current loop operation. |
| UPS DC-Link Current Measurement | Industrial Servo Amplifier Feedback |
Use Scenario: Bidirectional current sensing in battery-backed uninterruptible power supplies to monitor charge/discharge cycles and detect short circuits. IC Role / Device Role / Timing Role: High-accuracy isolated amplifier on DC-link side, providing linear ±250-mV input response to shunt voltage with failsafe fault signaling. Use Value: Detects overcurrent events within 3 µs (50%–90% delay) and reports VDD1 loss via –2.57-V failsafe output, enabling sub-10-µs shutdown response. | Use Scenario: Precision current loop feedback in closed-loop servo amplifiers requiring <0.1% linearity and thermal stability over extended duty cycles. IC Role / Device Role / Timing Role: Signal isolation element between power stage and FPGA/DSP, delivering 0.03% max nonlinearity and 81.5-dB SNR at 1-kHz input. Use Value: Reduces torque ripple by maintaining current regulation accuracy despite ambient temperature swings from –55°C to +125°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1301BDWVR | Same SOIC-8 package and 8.2 gain, but ±100-mV input range and higher 150-kV/µs CMTI; offset error ±0.1 mV max | Better suited for ultra-low-shunt designs (<1 mΩ) and SiC-based inverters with faster dv/dt | Select AMC1301BDWVR when tighter input range and enhanced transient immunity are required; not drop-in due to reduced full-scale voltage |
| ISO224BDWVR | SOIC-8, ±10-V input range, 8.2 gain, ±1-mV offset error, 50-kV/µs CMTI, –40°C to +125°C rating | Designed for higher-voltage sensor interfaces (e.g., CT outputs); lacks integrated overvoltage/failsafe diagnostics | Choose ISO224BDWVR for legacy designs needing wider input range and lower cost; requires external fault detection circuitry |
Compared with AMC1301BDWVR and ISO224BDWVR, the AMC1300BDWVR uniquely balances ±250-mV shunt compatibility, integrated diagnostics, and extended –55°C operation-making it optimal for cost-sensitive, high-reliability motor drives where 3.3-V high-side supply and fail-safe reporting are mandatory.
Availability
AMC1300BDWVR 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 AMC1300BDWVR 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 power management technologies, with decades of expertise in isolation and precision signal conditioning.
The AMC1300 series was designed specifically for high-accuracy, reinforced-isolation current sensing in industrial motor control and power conversion systems operating across extreme temperature and EMI environments.
FAQ
What is the maximum common-mode input voltage supported by the AMC1300BDWVR?
The AMC1300BDWVR supports a steady-state common-mode input voltage range of –0.16×VDD1 – 2.1 V to VDD1, with overvoltage detection triggered at VDD1 – 2 V (60-mV hysteresis). This allows safe operation up to 3.3 V common-mode when VDD1 = 5.3 V, critical for bridging high-side domains in 690-V AC systems. The AMC1300BDWVR's design ensures reliable performance even during transient overvoltage events without latch-up or damage.
Does the AMC1300BDWVR require external components for basic operation?
The AMC1300BDWVR requires only decoupling capacitors on VDD1 and VDD2 (0.1 µF ceramic + 10 µF bulk recommended per TI layout guidelines) and a DC bias path from INP or INN to GND1. No external gain-setting resistors, level shifters, or filter networks are needed for standard ±250-mV shunt interfacing. The AMC1300BDWVR integrates all core signal conditioning functions internally, reducing bill-of-materials and PCB area versus discrete isolation solutions.
How does the failsafe output function in the AMC1300BDWVR?
The AMC1300BDWVR asserts a differential failsafe output of –2.57 V (typical) when either common-mode input exceeds VDD1 – 2 V or VDD1 supply is lost. This deterministic low-level output enables immediate system-level fault recognition without software polling. The AMC1300BDWVR's failsafe behavior is hardware-based and independent of signal processing, ensuring fail-operational safety in accordance with IEC 61800-5-2 for drive systems.
What is the output common-mode voltage of the AMC1300BDWVR and why does it matter?
The AMC1300BDWVR delivers a nominal output common-mode voltage (VCMout) of 1.44 V, centered between its 3.3-V or 5-V VDD2 supply rails. This value is tightly regulated (1.39–1.49 V) and enables direct interfacing with single-supply SAR or delta-sigma ADCs that require mid-rail common-mode references. Maintaining stable VCMout ensures optimal ADC dynamic range utilization and minimizes common-mode rejection errors in the receiving stage of the AMC1300BDWVR signal chain.
Can the AMC1300BDWVR operate with mismatched high-side and low-side supply voltages?
Yes-the AMC1300BDWVR supports independent high-side (VDD1: 3.0–5.5 V) and low-side (VDD2: 3.0–5.5 V) supplies, allowing configurations such as 3.3-V VDD1 with 5-V VDD2 or vice versa. This flexibility enables optimized power domain partitioning: e.g., 3.3-V VDD1 for low-power microcontroller compatibility and 5-V VDD2 for improved ADC SNR. All electrical specifications-including gain, offset, and bandwidth-are guaranteed across the full specified VDD1/VDD2 combinations for the AMC1300BDWVR.
AMC1300BDWVR 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AMC1300BDWVR FAQ
1.How can I place an order for AMC1300BDWVR through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1300BDWVR 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 AMC1300BDWVR reliable?
The price and inventory of AMC1300BDWVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1300BDWVR is usually 5 days.
3.What payment methods are accepted for AMC1300BDWVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1300BDWVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1300BDWVR?
AMC1300BDWVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1300BDWVR 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 AMC1300BDWVR?
For technical support, including AMC1300BDWVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1300BDWVR requirements.
6.How does Aetrix verify that AMC1300BDWVR is sourced from the original manufacturer or authorized distributors?
All AMC1300BDWVR 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 AMC1300BDWVR meets industry standards.
7.What is the process for return or replacement of AMC1300BDWVR?
All AMC1300BDWVR units undergo pre-shipment inspection (PSI). If there is an issue with AMC1300BDWVR, 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 AMC1300BDWVR part is unused and in its original packaging.
Return procedure for AMC1300BDWVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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