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 AMC1311DWV and AMC1300DWVR are both isolated amplifiers in the same SOIC-8 (DWV) package with matching supply and temperature ranges, making them strong functional replacement candidates. However, they differ in input architecture and output behavior: the AMC1311DWV is a single-ended voltage-input isolated amplifier with a fixed gain of 1, while the AMC1300DWVR is a current-sense isolated amplifier with a ±250 mV differential input and a gain of 8.1. Designers must validate input signal conditioning, gain scaling, and output common-mode requirements before substituting one for the other.
Package Type
High match
Supply Voltage Range
High match
Input Signal Type
Validation required
Fixed Gain
Not compatible
Parts at a glance
Part B
AMC1311DWV
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 6795 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 | AMC1311DWV | AMC1300DWVR | Why it matters |
|---|---|---|---|
| Input Signal Type | Voltage input (high-impedance, ±1 V range) | Current shunt / voltage input (±250 mV range) | Determines whether the device is designed to sense a voltage directly or a small shunt voltage; affects front-end circuitry and cannot be swapped without redesign. |
| Input Voltage Range | ±1 V (2 V full-scale) | ±250 mV (±250 mV full-scale) | The full-scale input span sets the measurable signal range and sensitivity; a 4x difference means the two parts are not directly interchangeable for the same signal. |
| Input Impedance | High impedance (approx. 1 GΩ typical) | Low impedance (approx. 22 kΩ typical) | High input impedance allows direct voltage sensing without loading the source, while low impedance is intended for shunt-based current sensing; affects measurement accuracy and loading. |
| Isolation Rating | 5 kV RMS (reinforced, per datasheet) | 5 kV RMS (reinforced, per datasheet) | Isolation rating defines safety and common-mode voltage capability; identical ratings here mean both meet the same reinforced isolation requirements. |
| Output Interface | Differential analog output | Differential analog output | Both provide a differential analog output suitable for driving an external ADC; matching output type simplifies the downstream signal chain. |
| 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 both parts can operate from the same rails; identical ranges ease power-supply design. |
| Package | SOIC-8 (DWV) | SOIC-8 (DWV) | Package and pinout determine board footprint and layout compatibility; matching packages allow drop-in placement but not necessarily functional substitution. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Industrial temperature range compatibility ensures both parts suit the same environmental conditions. |
| Typical Application | Isolated voltage sensing (e.g., DC-link, battery voltage) | Isolated current sensing (e.g., motor phase, shunt current) | The intended application differs fundamentally; the AMC1311 senses voltage while the AMC1300 senses shunt current, so they are not functionally substitutable despite similar isolation and package. |
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 | AMC1311DWV |
|---|---|---|
| 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 AMC1311DWV and AMC1300DWVR?
The AMC1311DWV is a precision isolated amplifier designed for voltage sensing with a high input impedance and a ±1 V input range, while the AMC1300DWVR is an isolated amplifier optimized for current sensing via a shunt resistor with a ±250 mV input range. Both provide reinforced isolation, but their input structures and intended sensing topologies differ.
Are the AMC1311DWV and AMC1300DWVR pin-to-pin compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with the same pinout, allowing them to share a common PCB footprint. However, pin-to-pin compatibility does not guarantee functional interchangeability without validating the input range and signal chain.
What isolation rating do the AMC1311DWV 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 AMC1311DWV be used for shunt-based current sensing like the AMC1300DWVR?
Not directly. The AMC1311DWV has a ±1 V input range intended for voltage sensing, whereas the AMC1300DWVR has a ±250 mV input range matched to low-level shunt voltages. Using the AMC1311DWV across a shunt would require signal conditioning and would not match the AMC1300DWVR's gain and input characteristics.
What are the input voltage ranges of the AMC1311DWV and AMC1300DWVR?
The AMC1311DWV accepts a differential input range of ±1 V, while the AMC1300DWVR accepts a differential input range of ±250 mV. This difference determines which device is appropriate for voltage sensing versus shunt-based current sensing.
Do the AMC1311DWV and AMC1300DWVR have the same gain and output configuration?
Both are fixed-gain isolated amplifiers with a differential output, but their input ranges and corresponding gains differ to suit their intended sensing applications. Designers should consult the respective datasheets for exact gain and output swing specifications before substitution.
Are the AMC1311DWV and AMC1300DWVR interchangeable in an existing design?
They are not functionally interchangeable without design review. Although they share the same package and pinout, the differing input ranges (±1 V versus ±250 mV) mean the surrounding signal chain, shunt or divider network, and calibration must be validated against the target device's datasheet.