AMC0380D - ±400V AC-Input Reinforced Isolated Amplifier | TI
MPN: AMC0380D ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.21 | $62.10 |
| 100 | $5.52 | $552.00 |
| 500 | $4.97 | $2,485.00 |
| 1,000 | $4.48 | $4,480.00 |
Drop-in alternatives for AMC0380D — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AMC0380D04QDFXRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
AMC0380D04DFXR
✅ Drop-In📋 Reference alternative (not in catalog)
AMC0380D-Q1
✅ Drop-In📋 Reference alternative (not in catalog)
AMC0302D
⚡ Same Package✓ In Stock
$2.53 / Unit
View Datasheet →AMC0202D
⚡ Same Package✓ In Stock
$1.85 / Unit
View Datasheet →AMC0380D Maximum Ratings & Electrical Characteristics
| Function | Isolation amplifier with integrated HV divider |
| Input Type | High-voltage AC, high impedance |
| Linear Input Range | +/-400 V |
| Input Impedance | 8.3 MOhm |
| Output Type | Fixed-gain differential |
| Modulator Architecture | Second-order delta-sigma (Delta-Sigma) |
| High-Side Supply (VDD1) | 3.0 V to 5.5 V |
| Low-Side Supply (VDD2) | 3.0 V to 5.5 V |
| Isolation Type | Reinforced, galvanic |
| Number of Channels | 1 |
| Operating Temperature | -40C to +125C |
| Package | 15-SSOP, 0.65 mm pitch |
| Mounting Type | Surface Mount |
| External Divider Resistors Required | No (integrated) |
| Automotive Grade Option | AMC0380D-Q1 (AEC-Q100) |
| RoHS Status | Compliant |
AMC0380D 15-ssop, 0.65 mm pitch Pin Configuration Guide
Complete pinout information for AMC0380D (15-ssop, 0.65 mm pitch package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AMC0380D.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AMC0380D is suitable for 6 applications: AC Voltage Sensing in Motor Drives, Grid-Tied Solar Inverters, Power Quality Monitoring and Metering, Automotive Onboard Chargers and EV Systems, Industrial Power Supplies and UPS, Battery Energy Storage Systems.
AC Voltage Sensing in Motor Drives
The AMC0380D fits three-phase motor drive phase-voltage sensing because its +/-400V linear range and 8.3 MOhm input impedance allow direct connection to AC line signals without external resistor dividers. The integrated high-voltage divider removes resistor tolerance and drift errors, while reinforced isolation protects the low-voltage control domain. Its fixed-gain differential output feeds MCU ADCs (such as C2000 TMS320F28003x) directly; a simple RC low-pass on the output suppresses delta-sigma modulator noise for clean control-loop feedback.
Recommended
Grid-Tied Solar Inverters
In solar string inverters, the AMC0380D measures grid phase voltages directly thanks to its +/-400V input range and integrated divider, eliminating the external resistor ladder and its accuracy and thermal concerns. Reinforced galvanic isolation satisfies the safety barrier between the hazardous AC grid and the low-voltage MPPT/controller domain. The differential output offers good common-mode rejection in the electrically noisy inverter environment; designers should verify creepage/clearance spacing on the PCB to preserve the reinforced isolation rating.
Recommended
Power Quality Monitoring and Metering
Power-quality analyzers and energy meters benefit from the AMC0380D's direct AC voltage sensing: the 8.3 MOhm high-impedance input minimizes loading of the measured line, and the delta-sigma architecture provides the precision and linearity needed for harmonic analysis. Because the divider is integrated, channel-to-channel matching improves across multi-phase meters. The -40C to +125C operating range supports outdoor switchgear and panel installations, and the differential output connects conveniently to delta-sigma ADCs or MCU inputs for computation of RMS, THD, and power factor.
Recommended
Automotive Onboard Chargers and EV Systems
For HEV/EV onboard chargers and traction inverters, the AEC-Q100-qualified AMC0380D-Q1 variant measures high-voltage AC signals with reinforced isolation between the 400V/800V domain and the 12V low-voltage domain. The +/-400V input range with integrated divider handles line and phase sensing directly, reducing component count in safety-critical battery and charging systems. Its -40C to +125C rating covers under-hood and pack-adjacent environments, and the fixed-gain differential output interfaces with automotive MCUs such as TMS320F280015x for charge-control feedback loops.
Recommended
Industrial Power Supplies and UPS
Uninterruptible power supplies and industrial AC/DC systems use the AMC0380D to sense input line voltage and DC bus ripple across a reinforced isolation barrier. The integrated divider tolerates the +/-400V range of 230V AC systems with margin, and the delta-sigma modulator rejects conversion noise typical of switching power stages. Because the device draws its supplies from 3.0V to 5.5V rails on both sides, it integrates easily with existing controller architectures; place it close to the sensing node and route the differential output away from gate-driver loops to preserve signal integrity.
Recommended
Battery Energy Storage Systems
In grid-scale battery energy storage systems, the AMC0380D monitors AC-coupled inverter output voltages while the reinforced isolation barrier separates the high-energy conversion stage from the supervisory controller. The high 8.3 MOhm input impedance prevents disturbing the measured node, and the fixed-gain differential output enables straightforward filtering before the system MCU ADC. Operating from -40C to +125C, the device survives outdoor cabinet environments; the AMC0380D-Q1 option provides AEC-Q100 documentation demanded in many utility-scale qualification programs.
Recommended
Recommended Products Summary
Engineering reference data for AMC0380D — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AMC0380D04QDFXRQ1 | AMC0380D-Q1 | AMC0302D | AMC0202D |
|---|---|---|---|---|---|
| Package | 15-SSOP | 15-SSOP - same | 15-SSOP - same | 15-SSOP - same | 15-SSOP - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Range | +/-400 V AC | +/-400 V AC | +/-400 V AC | [DATA_NEEDED] | [DATA_NEEDED] |
| Input Impedance | 8.3 MOhm | 8.3 MOhm | 8.3 MOhm | [DATA_NEEDED] | [DATA_NEEDED] |
| Integrated HV Divider | Yes | Yes | Yes | No (external scaling) | No (external scaling) |
| Output Type | Fixed-gain differential | Fixed-gain differential | Fixed-gain differential | Differential | Differential |
| Supply Range (both sides) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Automotive Grade | No | Yes (AEC-Q100) | Yes (AEC-Q100) | No | No |
Key Differentiators
- Integrated +/-400V high-voltage resistive divider (vs AMC0302D)
- Automotive AEC-Q100 option with identical footprint (vs AMC0380D04QDFXRQ1)
- Reinforced isolation with delta-sigma signal transfer (vs AMC0202D)
Design Notes
Maintain the reinforced isolation rating by preserving the datasheet creepage and clearance distances across the isolation barrier on all PCB layers. Avoid routing high-voltage traces under or near the low-side ground plane, and consider a slot or cutout beneath the package to increase surface distance between the input-side and output-side copper.
The fixed-gain differential output carries residual delta-sigma modulator noise; add a first-order RC low-pass filter (for example 1 kOhm and 10 nF, setting cutoff near tens of kHz) matched on both output lines before the ADC. Use a fully differential routing pair and reference both filter resistors to the low-side analog ground to preserve common-mode rejection.
Decouple VDD1 and VDD2 with 100 nF ceramic capacitors placed within 2 mm of the pins, plus 1 uF bulk per side. Both supplies accept 3.0V to 5.5V; power VDD2 from a clean analog rail and avoid sharing it with switching-regulator loads, since supply ripple degrades the isolated amplifier's output accuracy.
The +/-400V range is the linear range, not the absolute maximum input - transient events beyond datasheet absolute maximums can damage the integrated divider. Verify that line surges in your application are handled by upstream protection (MOV/TVS), and never omit the input-side connection to the high-voltage reference potential specified in the datasheet.
Compliance Information
RoHS compliance per TI product listing. AEC-Q100 applies only to the AMC0380D-Q1 variant; the standard AMC0380D is not automotive qualified.
