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Texas Instruments AMC1300DWV
- Part No.:
- AMC1300DWV
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AMC1300DWV.pdf
- Description:
- IC ISOLATION 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,784
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Product details
Overview
AMC1300DWV 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, 170 kHz min output bandwidth, and 5000 VRMS isolation rating per UL1577.
For engineers reviewing the AMC1300DWV datasheet, AMC1300DWV pinout, AMC1300DWV application, or AMC1300DWV 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 AMC1300DWV implements galvanically isolated sigma-delta modulation with magnetic coupling across a reinforced dielectric barrier, supporting differential analog input to differential analog output translation without digital interface overhead. Its architecture integrates common-mode overvoltage detection (60 mV hysteresis) and missing high-side supply voltage fault signaling.
It operates with independent 4.5–5.5 V high-side (VDD1) and 3.0–5.5 V low-side (VDD2) supplies, delivering ±2.49 V clipped differential output swing referenced to 1.44 V common-mode voltage, while maintaining >100 dB CMRR up to 10 kHz and –85 dB THD at 10 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Range | ±250 mV differential - matches typical shunt resistor voltage drop at rated current, eliminating external scaling. |
| Fixed Gain | 8.2 - provides precise, temperature-stable amplification without calibration or trimming circuitry. |
| Offset Error | ±2 mV max - enables sub-1% full-scale error in 100-mΩ shunt systems at 20 A nominal current. |
| Output Bandwidth | 170 kHz min - supports accurate current sampling in 20-kHz PWM motor control loops with margin. |
| CMTI | 15 kV/µs min - ensures reliable operation during fast-switching transients in IGBT/SiC inverter stages. |
| Isolation Rating | 5000 VRMS (1 min), 7071 VPK reinforced - certified to UL1577 and VDE V 0884-11 for safety-critical industrial equipment. |
| Supply Range | VDD1: 4.5–5.5 V; VDD2: 3.0–5.5 V - allows flexible biasing with standard industrial LDOs or isolated DC/DC converters. |
Pinout & Package
AMC1300DWV is housed in an 8-pin SOIC package (DWV) with 5.85 mm × 7.50 mm body size, creepage/clearance ≥8.5 mm, and reinforced insulation barrier separating high-side (pins 1–4) and low-side (pins 5–8) domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VDD1 | High-side power supply | Provides operating power to input stage and isolation barrier; requires local 100-nF + 10-µF decoupling. |
| 2: INP | Noninverting analog input | Accepts positive shunt terminal voltage; must share DC path to GND1 with INN for common-mode definition. |
| 3: INN | Inverting analog input | Accepts negative shunt terminal voltage; completes differential input pair with INP. |
| 4: GND1 | High-side analog ground | Reference for input stage and isolation barrier primary side; not connected to system earth. |
| 5: GND2 | Low-side analog ground | Reference for output stage; electrically isolated from GND1; connects to ADC ground plane. |
| 6: OUTN | Inverting analog output | Differential output leg; used with OUTP to drive fully differential ADC inputs or instrumentation amps. |
| 7: OUTP | Noninverting analog output | Differential output leg; complements OUTN to deliver 8.2× amplified, isolated replica of INP–INN. |
| 8: VDD2 | Low-side power supply | Provides operating power to output stage; decoupling required adjacent to pin 8. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | UL1577 5000 VRMS and VDE V 0884-11 7071 VPK certification enables use in Class I/II industrial safety architectures without additional barrier components. |
| Integrated Diagnostics | Common-mode overvoltage detection (VCMov = VDD1 – 2 V, 60 mV hysteresis) and VDD1 undervoltage lockout (2.4–2.8 V threshold) reduce external fault-monitoring circuitry. |
| Low EMI Profile | Meets CISPR-11 Class B and CISPR-25 automotive EMC standards, enabling direct placement near noisy power stages without shielding. |
| Stable DC Performance | ±4 µV/°C max offset drift and ±50 ppm/°C max gain drift ensure <0.2% total error drift over –40°C to +125°C ambient range. |
| Failsafe Output | Outputs drive to –2.57 V differential when VDD1 is lost or common-mode exceeds VCMov, enabling immediate system shutdown via comparator monitoring. |
Applications
| Motor Drive Current Sensing | Inverter Phase Current Monitoring |
|---|---|
Use Scenario: Real-time phase current measurement in 3-phase AC induction or PMSM motor drives using low-value shunt resistors placed on inverter leg outputs. IC Role / Device Role / Timing Role: Isolated analog front-end that conditions and transfers shunt voltage across high dv/dt barriers to MCU ADC inputs. Use Value: Enables torque ripple reduction below 1% and field-oriented control (FOC) accuracy within ±0.5° electrical angle at 20-kHz PWM frequency. | Use Scenario: Continuous current monitoring in variable-frequency drives for HVAC compressors and industrial pumps operating at 400–690 VAC line voltage. IC Role / Device Role / Timing Role: High-CMTI isolated amplifier providing noise-immune feedback to digital signal processor (DSP) for closed-loop current regulation. Use Value: Supports SIL-2 functional safety compliance by delivering fail-safe output states during overvoltage or supply loss events. |
| UPS DC-Link Current Protection | Solar Inverter String Monitoring |
Use Scenario: Bidirectional DC-link current sensing in double-conversion uninterruptible power supplies to detect short-circuit faults and manage battery charge/discharge cycles. IC Role / Device Role / Timing Role: Reinforced-isolated amplifier interfacing between high-voltage DC bus and low-voltage protection controller. Use Value: Provides 100 ns response to overcurrent events via fast signal delay (≤3.4 µs) and failsafe output clamping, enabling sub-10 µs trip activation. | Use Scenario: String-level current monitoring in central solar inverters where multiple PV strings feed into a shared DC bus operating at up to 1500 VDC. IC Role / Device Role / Timing Role: Isolated analog sensor conditioning element converting shunt voltage to differential output compatible with isolated ΣΔ ADCs. Use Value: Delivers <0.03% nonlinearity and 81.5 dB SNR to support IEEE 1547-compliant grid synchronization and anti-islanding detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1300BDWV | Enhanced grade: ±0.2 mV offset error, ±0.9 µV/°C offset drift, 100 kV/µs CMTI, –55°C to +125°C operation. | Required for aerospace, traction, or extended-temperature industrial environments where long-term drift and transient immunity are critical. | Select AMC1300BDWV when system-level accuracy budget demands <0.1% total unadjusted error over full temperature range. |
| ISO224BDWVR | Higher bandwidth (1.5 MHz), ±10 V input range, 100 kV/µs CMTI, but ±5 mV offset error and no integrated overvoltage detection. | Suitable for wide-dynamic-range voltage sensing or high-speed current loop control where bandwidth outweighs DC precision. | Choose ISO224BDWVR only if application requires >500 kHz signal fidelity and can accommodate external fault monitoring circuitry. |
Compared with AMC1300BDWV, the AMC1300DWV trades 5× higher offset error and lower CMTI for cost-sensitive industrial drives; versus ISO224BDWVR, it offers superior DC accuracy and built-in diagnostics at the expense of bandwidth-making it optimal for motor control where 170 kHz suffices and fault resilience is mandatory.
Availability
AMC1300DWV 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 production.
Supply support for AMC1300DWV 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 sensing, and power management ICs.
The AMC1300 product line delivers reinforced-isolated amplifiers designed specifically for high-reliability current sensing in industrial motor control, renewable energy inverters, and UPS systems where safety certification and parametric stability are non-negotiable.
FAQ
What is the maximum common-mode input voltage supported by the AMC1300DWV?
The AMC1300DWV supports a steady-state common-mode input voltage range of –0.16 × VDD1 – 2.1 V to VDD1, with absolute limits of –2 V to VDD1 + 0.5 V per absolute maximum ratings. Its integrated common-mode overvoltage detection triggers at VDD1 – 2 V (with 60 mV hysteresis), ensuring robust operation under transient overvoltage conditions. This behavior is confirmed in Section 7.3 and Figure 7-5 of the AMC1300DWV datasheet.
Does the AMC1300DWV require external filtering for shunt resistor inputs?
The AMC1300DWV does not require external RC filtering for basic operation, as its internal architecture includes inherent noise rejection and the device specifies performance with direct shunt connection. However, TI recommends adding a 100-Ω series resistor and 1-nF capacitor at the INP/INN pins for EMI suppression in high-noise inverter environments, per Section 11.1 of the AMC1300DWV datasheet. This preserves the specified 170 kHz bandwidth while improving immunity to fast transients.
Can the AMC1300DWV operate with 3.3-V supplies on both sides?
No-the AMC1300DWV requires VDD1 (high-side supply) to be 4.5–5.5 V; it does not support 3.3 V on the high-side. Only the AMC1300B variant (e.g., AMC1300BDWV) operates down to 3.0 V on VDD1. The AMC1300DWV's VDD2 (low-side supply) accepts 3.0–5.5 V, so a 3.3-V rail is valid there. This distinction is clearly defined in Table 5 (Device Comparison Table) and Section 7.3 (Recommended Operating Conditions) of the AMC1300DWV datasheet.
What is the purpose of the failsafe output voltage in the AMC1300DWV?
The AMC1300DWV generates a differential failsafe output of –2.57 V (typical) when VDD1 is absent or the input common-mode voltage exceeds VCMov, providing a deterministic fault state for downstream comparators or MCU GPIOs. This enables immediate system shutdown or alarm assertion without software intervention. The value is specified as –2.63 V / –2.57 V / –2.53 V (min/typ/max) in Section 7.9 of the AMC1300DWV datasheet and is integral to functional safety designs.
How does the AMC1300DWV handle input overvoltage conditions beyond ±320 mV?
When the differential input voltage exceeds ±320 mV (VClipping), the AMC1300DWV output clips symmetrically at ±2.49 V differential, preserving linearity up to ±250 mV full-scale. Beyond clipping, the output saturates but remains stable and recoverable-no latch-up or damage occurs within absolute maximum ratings. This behavior is documented in Section 7.3 (VClipping specification) and Section 7.9 (VCLIPout parameter) of the AMC1300DWV datasheet.
AMC1300DWV 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:
- 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
AMC1300DWV FAQ
1.How can I place an order for AMC1300DWV through Aetrix?
Please submit a Request for Quotation (RFQ) for AMC1300DWV 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 AMC1300DWV reliable?
The price and inventory of AMC1300DWV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMC1300DWV is usually 5 days.
3.What payment methods are accepted for AMC1300DWV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMC1300DWV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMC1300DWV?
AMC1300DWV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMC1300DWV 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 AMC1300DWV?
For technical support, including AMC1300DWV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMC1300DWV requirements.
6.How does Aetrix verify that AMC1300DWV is sourced from the original manufacturer or authorized distributors?
All AMC1300DWV 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 AMC1300DWV meets industry standards.
7.What is the process for return or replacement of AMC1300DWV?
All AMC1300DWV units undergo pre-shipment inspection (PSI). If there is an issue with AMC1300DWV, 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 AMC1300DWV part is unused and in its original packaging.
Return procedure for AMC1300DWV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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