Part A
AMC1300DWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 1951 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AMC1311BDWVR and AMC1300DWVR are both isolated amplifiers in the same SOIC-8 (DWV) package with matching 5.0 kVrms isolation ratings and 1-channel configurations, making them strong functional replacement candidates. However, they differ in input voltage range and output type, so the AMC1300DWVR is not a direct drop-in substitute for the AMC1311BDWVR without validating the signal chain requirements.
Isolation Rating
High match
Package Type
High match
Input Voltage Range
Validation required
Output Type
Not compatible
Parts at a glance
Part B
AMC1311BDWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 3122 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 | AMC1311BDWVR | AMC1300DWVR | Why it matters |
|---|---|---|---|
| Input Signal Type | Voltage input (high-impedance, ±1 V range) | Current shunt input (low-impedance, ±250 mV range) | Determines whether the device senses a voltage directly or a shunt voltage drop; these are not functionally interchangeable without external signal conditioning. |
| Input Voltage Range | ±1 V (2 V full-scale) | ±250 mV (500 mV full-scale) | The full-scale input range must match the sensed signal amplitude; a mismatch causes clipping or poor 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) | Isolation rating defines safety and common-mode voltage tolerance; both meet reinforced isolation, so this is not a differentiator. |
| Gain | Fixed gain of 1 (unity) | Fixed gain of 8 | Gain determines the output scaling relative to input; different gains require different downstream ADC scaling and signal chains. |
| Output Type | Differential analog output | Differential analog output | Both provide differential outputs suitable for driving delta-sigma ADCs, so output topology is compatible. |
| 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) | Supply range compatibility ensures the device can operate in the same rail environment; both share the same range. |
| Bandwidth | Approx. 100 kHz (per datasheet) | Approx. 100 kHz (per datasheet) | Bandwidth affects the ability to track fast signal changes; similar bandwidth supports comparable dynamic response. |
| Package | 8-pin SOIC (DWV) | 8-pin SOIC (DWV) | Package compatibility enables drop-in PCB replacement; both use the same DWV SOIC footprint. |
| Typical Application | Isolated voltage sensing (e.g., DC-link, battery voltage) | Isolated current sensing via shunt resistor | The intended application dictates whether the part is a functional substitute; voltage-sensing and current-sensing roles are not directly interchangeable. |
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 | AMC1300DWVR | AMC1311BDWVR |
|---|---|---|
| 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 AMC1311BDWVR and the AMC1300DWVR?
The AMC1311BDWVR is a precision isolated amplifier optimized for voltage sensing with a ±1 V input range and a fixed gain of 1, while the AMC1300DWVR is an isolated amplifier optimized for current sensing via shunt resistors with a ±250 mV input range and a fixed gain of 8. Both provide reinforced isolation, but their input ranges and gains target different sensing topologies.
Are the AMC1311BDWVR and AMC1300DWVR pin-to-pin compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with the same pinout, allowing a common PCB footprint. However, pin-to-pin compatibility does not imply functional interchangeability, since input range and gain differ.
What isolation rating do the AMC1311BDWVR and AMC1300DWVR provide?
Both devices are reinforced isolated amplifiers rated for 5 kV RMS isolation per UL 1577 and provide reinforced isolation according to VDE V 0884-11, making them suitable for high-voltage industrial measurement applications.
Can the AMC1300DWVR be used for voltage sensing like the AMC1311BDWVR?
Not directly. The AMC1300DWVR has a ±250 mV input range and a gain of 8, intended for shunt-based current sensing. The AMC1311BDWVR has a ±1 V input range and unity gain, intended for voltage sensing. Substitution requires re-scaling the input signal and verifying accuracy and linearity against the datasheet.
Do both devices share the same supply voltage requirements?
Yes. Both the AMC1311BDWVR and AMC1300DWVR 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, as specified in their respective datasheets.
What is the typical gain error and nonlinearity of these isolated amplifiers?
Both devices specify low gain error and low nonlinearity in their datasheets, with typical gain error within ±0.3% and nonlinearity within ±0.03% for the AMC1311B and AMC1300 families. Exact limits should be confirmed against the specific device datasheet revision.
Which device is better suited for motor drive current sensing?
The AMC1300DWVR is better suited for motor drive current sensing because its ±250 mV input range and gain of 8 are designed for shunt resistor voltage drops. The AMC1311BDWVR is intended for voltage sensing with a ±1 V input and unity gain.
Are both devices qualified for industrial temperature ranges?
Yes. Both the AMC1311BDWVR and AMC1300DWVR are specified for the industrial temperature range of –40°C to +125°C, as stated in their manufacturer datasheets.