Part A
AMC1300BDWV
Texas Instruments
- Lifecycle
- Active
- Stock
- 6086 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker
Replacement verdict
Compatible functional replacement candidate
The AMC1300BDWV and AMC1300DWV are functionally compatible isolated amplifiers sharing the same package, channel configuration, and isolation topology, with the B-grade variant offering tightened gain error and offset specifications. The AMC1300DWV can serve as a functional substitute for the AMC1300BDWV where the wider gain error tolerance is acceptable, while the reverse substitution requires validation against the tighter accuracy budget of the B-grade device.
Package Type
High match
Channel Configuration
High match
Gain Error Tolerance
Validation required
Input Offset Voltage
Validation required
Parts at a glance
Part B
AMC1300DWV
Texas Instruments
- Lifecycle
- Active
- Stock
- 5165 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AMC1300BDWV | AMC1300DWV | Why it matters |
|---|---|---|---|
| Input Offset Voltage (max) | ±0.3 mV | ±1.5 mV | Lower offset improves DC measurement accuracy; the B-grade offers tighter offset for precision current sensing. |
| Input Offset Drift (max) | ±3 µV/°C | ±15 µV/°C | Lower drift maintains accuracy over temperature; critical for stable measurements across operating conditions. |
| Gain Error (max) | ±0.3% | ±1% | Gain error directly affects scaling accuracy of the isolated measurement; tighter gain improves system-level precision. |
| Nonlinearity (max) | ±0.03% | ±0.05% | Better linearity reduces distortion and measurement error across the input range. |
| Input Common-Mode Rejection Ratio (min) | -90 dB | -80 dB | Higher CMRR rejects common-mode noise and transients, improving robustness in noisy motor-drive environments. |
| Signal-to-Noise Ratio (typ) | 78 dB | 74 dB | Higher SNR enables better resolution of small signals and more accurate current sensing. |
| Total Harmonic Distortion (typ) | -80 dB | -75 dB | Lower THD indicates cleaner signal transfer, important for accurate waveform reproduction in control loops. |
| Isolation Rating | 5000 Vrms (reinforced) | 5000 Vrms (reinforced) | Determines safe galvanic isolation between high-voltage and low-voltage domains; identical for both parts. |
| Supply Voltage Range | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Defines compatible power rails for the high-side and low-side supplies; identical for both parts. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Ensures operation across industrial temperature extremes; identical for both parts. |
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 | AMC1300BDWV | AMC1300DWV |
|---|---|---|
| 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 is the primary difference between the AMC1300BDWV and the AMC1300DWV?
The AMC1300BDWV and AMC1300DWV are both isolated amplifiers in the AMC1300 family, but they differ in their specified gain tolerance and input voltage range. The AMC1300BDWV is specified with a gain error of ±0.3% (max) and a linear input range of ±250 mV, while the AMC1300DWV is specified with a gain error of ±1% (max) and a linear input range of ±250 mV. Designers should confirm the exact gain and offset specifications from the respective datasheets before selecting between the two.
Are the AMC1300BDWV and AMC1300DWV pin-compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with an identical pinout, so they are pin-compatible and share the same PCB land pattern. Electrical and isolation performance differences must still be validated for the target design.
What isolation rating do the AMC1300BDWV and AMC1300DWV provide?
Both devices are reinforced isolated amplifiers rated for 5 kV RMS isolation per UL 1577 and provide a working voltage of 1.5 kV peak per VDE V 0884-11 (VDE 0884-11). The isolation barrier is intended for galvanically isolated current and voltage sensing in industrial and motor-drive applications.
Can the AMC1300BDWV and AMC1300DWV be used for current sensing in motor drives?
Yes. Both are isolated amplifiers designed for shunt-based current sensing in motor drives, inverters, and industrial systems. They accept a low-level differential input (linear range of ±250 mV) and provide a differential output suitable for driving an ADC or microcontroller after appropriate filtering.
Do the AMC1300BDWV and AMC1300DWV require an external isolated supply?
Yes. Both devices require a high-side supply (VDD1) on the isolated side and a low-side supply (VDD2) on the controller side. The isolated side must be powered from an isolated DC-DC converter or similar isolated bias supply; the devices do not generate the isolated supply internally.
What is the recommended input voltage range for the AMC1300BDWV and AMC1300DWV?
Both devices are specified for a linear input range of ±250 mV with a nominal input common-mode voltage of 0 V, and they are intended for shunt-based sensing where the differential input stays within this range. Inputs outside the linear range should be avoided to prevent output saturation and loss of accuracy.
Are the AMC1300BDWV and AMC1300DWV suitable for replacing each other in an existing design?
Because they are pin-compatible and share the same package and isolation ratings, substitution is possible in many cases, but the gain error and offset specifications differ between the two variants. The replacement should only be made after verifying that the tighter or looser gain tolerance of the substitute meets the accuracy requirements of the target design.