Part A
AMC1300BDWVR
Техасские инструменты
- Lifecycle
- Active
- Stock
- 1306 ПКС
- Package
- SOIC-8
- Series
- Линейные - Усилители - Специальное назначение
Replacement verdict
Compatible functional replacement candidate
The AMC1300BDWVR and AMC1302DWV are both isolated amplifiers in the SOIC-8 (DWV) package with a ±50 mV input range and a fixed gain of 8.41, making them strong functional candidates for the same current-sensing signal chain. The AMC1302DWV offers a higher input offset voltage specification and a wider specified operating temperature range, so the substitution is viable but requires validation of offset error budget and thermal margin in the target design.
Input Voltage Range
High match
Fixed Gain
High match
Input Offset Voltage
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
AMC1302DWV
Техасские инструменты
- Lifecycle
- Active
- Stock
- 5151 ПКС
- Package
- SOIC-8
- Series
- Линейные - Усилители - Специальное назначение
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AMC1300BDWVR | AMC1302DWV | Why it matters |
|---|---|---|---|
| Input Voltage Range | ±250 mV | ±50 mV | Defines the maximum differential signal the isolated amplifier can accept; a smaller range suits shunt-based current sensing with lower full-scale drop. |
| Fixed Gain | 8.2 V/V | 41 V/V | Determines the output scaling relative to input; different gain changes the signal chain and ADC full-scale matching. |
| Input Offset Error (max) | ±0.3 mV | ±0.05 mV | Offset directly limits DC measurement accuracy; lower offset improves precision at small signal levels. |
| Input Offset Drift (max) | ±3 µV/°C | ±1 µV/°C | Drift affects accuracy over temperature; lower drift maintains measurement stability across operating conditions. |
| Gain Error (max) | ±0.3% | ±0.2% | Gain error impacts absolute accuracy of the scaled signal; tighter gain error reduces calibration burden. |
| Input Bandwidth | 310 kHz | 280 kHz | Bandwidth sets the maximum signal frequency the amplifier can faithfully pass, affecting response speed in control loops. |
| Isolation Rating | 5000 Vrms (reinforced) | 5000 Vrms (reinforced) | Isolation rating ensures safety and noise immunity between high-voltage and low-voltage domains; both meet reinforced isolation requirements. |
| Supply Voltage (VDD1 / VDD2) | 3.0–5.5 V / 3.0–5.5 V | 3.0–5.5 V / 3.0–5.5 V | Supply compatibility determines whether the device can drop into an existing rail scheme without level shifting. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Temperature range confirms suitability for industrial environments; identical ranges ease substitution. |
| Package | SOIC-8 (DWV) | SOIC-8 (DWV) | Package and pinout compatibility allow direct board-level replacement without layout changes. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AMC1300BDWVR | AMC1302DWV |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Type | Isolation | Isolation |
| Applications | Current Sensing, Power Management | Current Sensing, Power Management |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AMC1300BDWVR and the AMC1302DWV?
The AMC1300BDWVR is a precision isolated amplifier with a fixed gain of 8 and a ±250 mV input range, while the AMC1302DWV is a precision isolated amplifier with a fixed gain of 41 and a ±50 mV input range. Both are single-channel, reinforced-isolated amplifiers in the SOIC-8 (DWV) package, but they differ in input voltage range, gain, and specified linearity and offset performance.
Are the AMC1300BDWVR and AMC1302DWV pin-compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with the same pinout: VDD1, INP, INN, VDD2, OUTP, OUTN, GND2, and GND1. This allows a common PCB footprint, but the different input ranges and gains must be validated for the target application before substitution.
What isolation rating do the AMC1300BDWVR and AMC1302DWV provide?
Both devices are reinforced isolated amplifiers rated for 5 kV RMS isolation (per UL 1577) and are designed for basic and reinforced isolation in high-voltage measurement applications. They also support a working voltage suitable for isolated shunt-based current sensing in motor drive and inverter systems.
What input voltage range does each device support?
The AMC1300BDWVR supports a linear input range of ±250 mV, making it suitable for shunt-based current sensing with larger shunt voltage drops. The AMC1302DWV supports a linear input range of ±50 mV, which is intended for very low shunt voltage drops and lower power dissipation in the shunt resistor.
What is the fixed gain of each amplifier?
The AMC1300BDWVR has a fixed gain of 8 V/V, while the AMC1302DWV has a fixed gain of 41 V/V. The higher gain of the AMC1302DWV compensates for its smaller ±50 mV input range, producing a comparable output swing for the downstream ADC.
Can the AMC1300BDWVR and AMC1302DWV be used in the same current-sensing application?
They can serve similar isolated current-sensing functions, but the choice depends on the shunt voltage magnitude. The AMC1300BDWVR is appropriate when the shunt develops up to ±250 mV, while the AMC1302DWV is appropriate when the shunt develops only up to ±50 mV. The shunt resistor value, gain, and downstream ADC full-scale range must be recalculated when swapping between the two.
What are the typical applications for these isolated amplifiers?
Both devices are used for isolated shunt-based current sensing in motor drives, inverters, solar string inverters, energy storage systems, and industrial power supplies. The AMC1300BDWVR is often selected for higher shunt voltage sensing, while the AMC1302DWV is selected for low-shunt-voltage, low-loss sensing architectures.
Do both devices require the same supply voltages?
Yes. Both the AMC1300BDWVR and AMC1302DWV operate with a high-side supply (VDD1) of 3.0 V to 5.5 V and a low-side supply (VDD2) of 3.0 V to 5.5 V, allowing the isolated output side to interface directly with 3.3 V or 5 V ADCs and controllers.