Part A
AMC1300BDWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 1306 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AMC1311DWVR and AMC1300BDWVR are both isolated amplifiers in the same SOIC-8 (DWV) package with matching 5 V supply and industrial temperature ranges, making them strong functional replacement candidates. However, they differ in input voltage range and gain architecture, so the AMC1300BDWVR is not a direct drop-in substitute for the AMC1311DWVR without validating the signal chain against the target application's input span and gain requirements.
Package Type
High match
Supply Voltage
High match
Input Voltage Range
Validation required
Gain Architecture
Not compatible
Parts at a glance
Part B
AMC1311DWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 1397 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Special Purpose
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AMC1311DWVR | AMC1300BDWVR | Why it matters |
|---|---|---|---|
| Input Signal Type | Voltage input (high-impedance, ±1 V range) | Current shunt input (low-impedance, ±250 mV range) | Determines what physical quantity the isolator measures; a voltage-input part cannot directly replace a shunt-input part without external signal conditioning. |
| Input Voltage Range | ±1 V (2 V full-scale) | ±250 mV (500 mV full-scale) | Defines the maximum signal swing the device can accept; mismatched ranges require different shunt or divider networks and affect measurement resolution. |
| Input Impedance | High impedance (approx. 1 GΩ typical) | Low impedance (approx. 20 kΩ typical) | High input impedance allows direct voltage sensing without loading the source, while low impedance is intended for shunt-based current sensing. |
| Isolation Rating | 5 kV RMS (reinforced, per datasheet) | 5 kV RMS (reinforced, per datasheet) | Both provide reinforced isolation suitable for high-voltage systems; identical ratings mean safety compliance is preserved across substitution. |
| Gain | Fixed gain of 1 V/V | Fixed gain of 8 V/V | Gain determines the output scaling relative to input; different gains change the effective full-scale output and require recalibration of downstream ADC or control loops. |
| Output Type | Differential analog output | Differential analog output | Both provide differential outputs compatible with differential ADCs; identical output topology simplifies interface reuse. |
| Supply Voltage | 3.0 V to 5.5 V (high side and low side) | 3.0 V to 5.5 V (high side and low side) | Identical supply requirements allow the same power rails to be reused when swapping parts. |
| Package | 8-pin SOIC (DWV) | 8-pin SOIC (DWV) | Same package and pinout enable drop-in PCB compatibility without layout changes. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Identical temperature ratings ensure both parts meet the same environmental requirements. |
| Typical Application | Isolated voltage sensing (e.g., DC-link, inverter bus voltage) | Isolated current sensing (e.g., motor phase, shunt-based current) | The intended application differs fundamentally; substituting one for the other requires redesigning the sensing front-end. |
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 | AMC1311DWVR |
|---|---|---|
| Part Status | Active | Active |
| Type | Isolation | Isolation |
| Applications | Current Sensing, Power Management | - |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary functional differences between the AMC1311DWVR and AMC1300BDWVR?
The AMC1311DWVR is a precision isolated amplifier optimized for voltage sensing with a ±1 V input range and a fixed gain of 1, while the AMC1300BDWVR is an isolated amplifier optimized for current sensing via shunt resistors with a ±250 mV input range and a fixed gain of 8. Both are reinforced isolated amplifiers in the same SOIC-8 (DWV) package, but their input ranges and gains target different sensing applications.
Are the AMC1311DWVR and AMC1300BDWVR pin-compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with the same pinout, so they are pin-compatible at the package level. However, pin compatibility does not guarantee functional interchangeability because the input range and gain differ.
Can the AMC1311DWVR and AMC1300BDWVR be used interchangeably in the same circuit?
Not directly. The AMC1311DWVR has a ±1 V input range with gain 1, whereas the AMC1300BDWVR has a ±250 mV input range with gain 8. Substituting one for the other without redesigning the input signal conditioning and accounting for the different gain would produce incorrect output scaling and may exceed the input range.
What isolation rating do the AMC1311DWVR and AMC1300BDWVR provide?
Both devices are reinforced isolated amplifiers rated for 5 kV RMS isolation (per the TI AMC13xx family datasheets) and are designed to meet reinforced isolation requirements for industrial applications. Designers should confirm the specific isolation parameters (such as working voltage and transient immunity) in the respective datasheet for their end application.
Which device is better suited for shunt-based current sensing?
The AMC1300BDWVR is intended for shunt-based current sensing because its ±250 mV input range and gain of 8 match the low differential voltages developed across shunt resistors. The AMC1311DWVR, with its ±1 V input range and gain of 1, is better suited to voltage sensing rather than low-level shunt signals.
Do the AMC1311DWVR and AMC1300BDWVR share the same supply voltage requirements?
Both devices operate from a single 5 V supply on the high side and a 3.0 V to 5.5 V supply on the low side, consistent with the TI AMC13xx isolated amplifier family. Designers should verify the exact recommended operating conditions in each device's datasheet before finalizing the power supply design.
What output format do the AMC1311DWVR and AMC1300BDWVR provide?
Both devices provide a differential analog output centered around a common-mode voltage of approximately 1.44 V (with a 5 V high-side supply), intended for connection to a differential ADC input. The output swing and scaling differ because of the different gains and input ranges of the two devices.