AMC0302D - ±50mV Reinforced Isolated Amplifier | TI
MPN: AMC0302D ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.65 | $265.00 |
| 500 | $2.35 | $1,175.00 |
| 1,000 | $2.1 | $2,100.00 |
Drop-in alternatives for AMC0302D — 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:
AMC0202D
✅ Drop-In✓ In Stock
$2.24 / Unit
View Datasheet →AMC1302QDWVRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
AMC3302
✅ Drop-In📋 Reference alternative (not in catalog)
ISO122
✅ Drop-In📋 Reference alternative (not in catalog)
ACPL-C79B
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AMC0302D Maximum Ratings & Electrical Characteristics
| Input Voltage Range | ±50 mV |
| Fixed Gain | 8.2 V/V |
| Bandwidth | 250 kHz |
| Offset Error | ±0.3 mV (max) |
| Gain Error | ±0.2% (max) |
| Temperature Drift | ±5 µV/°C |
| Isolation Rating (DWV) | 5 kVRMS (60s) |
| Isolation Rating (D) | 3 kVRMS (60s) |
| Supply Voltage (High-Side) | 3.3V or 5V |
| Supply Voltage (Low-Side) | 3.3V or 5V |
| Operating Temperature | -40°C to +125°C |
| Package | SOIC-8 (DWV wide-body, D narrow-body) |
| Mounting Type | Surface Mount |
| Output Type | Differential |
| RoHS Status | Compliant |
AMC0302D Pin Configuration
| Pin 1 | VINP — Positive analog input |
| Pin 2 | VINN — Negative analog input |
| Pin 3 | GND1 — High-side ground |
| Pin 4 | VDD1 — High-side supply |
| Pin 5 | VOUTP — Positive differential output |
| Pin 6 | VOUTN — Negative differential output |
| Pin 7 | GND2 — Low-side ground |
| Pin 8 | VDD2 — Low-side supply |
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
AMC0302D is suitable for 6 applications: Motor Phase Current Sensing, Solar Inverter Current Monitoring, Industrial Automation, Battery Management Systems, Electric Vehicle Powertrain, Power Supply Monitoring.
Motor Phase Current Sensing
The AMC0302D is used to sense phase currents in motor drives, providing isolated measurement of shunt voltages. Its ±50mV input range matches typical shunt drops, and the reinforced isolation up to 5kVRMS protects control electronics from high-voltage transients. The 250 kHz bandwidth ensures accurate capture of fast current changes, improving motor control performance.
Recommended
Solar Inverter Current Monitoring
In solar inverters, the AMC0302D measures DC and AC currents with high accuracy, enabling efficient power conversion. Its reinforced isolation ensures safety in high-voltage environments, while the differential output rejects ground noise. The device's low offset and gain errors contribute to precise power monitoring, maximizing energy harvest.
Recommended
Industrial Automation
The AMC0302D provides isolated current sensing in industrial automation systems, such as PLCs and robotic drives. Its wide temperature range and high isolation make it suitable for harsh environments. The differential output allows long-distance signal transmission without degradation, ensuring reliable data acquisition.
Recommended
Battery Management Systems
The AMC0302D is used in BMS to measure cell currents accurately, enabling state-of-charge estimation. Its reinforced isolation protects low-voltage monitoring circuitry from high-voltage battery stacks. The device's low offset and drift ensure accurate current measurement over the battery's lifetime.
Recommended
Electric Vehicle Powertrain
In EVs, the AMC0302D senses motor currents and battery currents, providing isolated measurements for the traction inverter and BMS. Its high isolation rating meets automotive safety requirements, and the wide temperature range ensures reliable operation. The device's accuracy enhances torque control and battery management.
Recommended
Power Supply Monitoring
The AMC0302D monitors output currents in power supplies, providing isolated feedback for control loops. Its high bandwidth allows fast transient response, and the reinforced isolation ensures safety in high-voltage designs. The differential output simplifies interfacing with ADCs.
Recommended
Recommended Products Summary
Engineering reference data for AMC0302D — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AMC0202D | AMC1302QDWVRQ1 | AMC3302 |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | ±50 mV | ±50 mV | ±250 mV | ±50 mV |
| Fixed Gain | 8.2 V/V | 8.2 V/V | 41 V/V | 8.2 V/V |
| Isolation Rating | 5 kVRMS (reinforced) | 3 kVRMS (basic) | 5 kVRMS (reinforced) | 5 kVRMS (reinforced) |
| Bandwidth | 250 kHz | 250 kHz | 250 kHz | 250 kHz |
| Offset Error | ±0.3 mV | ±0.3 mV | ±0.3 mV | ±0.3 mV |
| Supply Voltage | 3.3V or 5V | 3.3V or 5V | 3.3V or 5V | 3.3V or 5V |
Key Differentiators
- Reinforced isolation up to 5kVRMS (vs AMC0202D)
- Lower input range for precise shunt sensing (vs AMC1302QDWVRQ1)
- Fixed gain simplifies design (vs AMC3302)
Design Notes
Maintain proper creepage and clearance distances for the isolation barrier. For reinforced isolation (5kVRMS), ensure at least 8mm creepage on the PCB. Keep high-voltage traces away from the low-voltage side to prevent arcing.
Place the shunt resistor close to the AMC0302D input pins to minimize parasitic inductance. Use Kelvin connections to the shunt to reduce measurement errors. Keep the input traces short and shielded from noise.
Decouple the VDD1 and VDD2 pins with 100nF ceramic capacitors placed as close as possible to the pins. Use a 10uF bulk capacitor on each supply if the power source is far away. Ensure the supplies are clean and within the specified range.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified; for automotive, consider AMC1302QDWVRQ1.
