Part A
AMC1302DWVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 4875 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AMC1302DWVR is a viable functional replacement candidate for the AMC1301DWVR, sharing the same isolated amplifier architecture, SOIC-8 package, and 5.0 kV reinforced isolation rating, while offering a higher input voltage range and lower gain. Designers should validate gain-dependent signal scaling and output offset behavior before substituting in existing AMC1301DWVR designs.
Package Type
High match
Isolation Rating
High match
Gain
Validation required
Input Voltage Range
Validation required
Parts at a glance
Part B
AMC1301DWVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 6629 PCS
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AMC1301DWVR | AMC1302DWVR | 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 voltage drops. |
| Fixed Gain | 8.2 V/V | 41 V/V | Determines the output scaling relative to input; different gain changes the signal chain design and ADC full-scale matching. |
| Input Offset Voltage (max) | ±200 µV | ±50 µV | Lower offset improves DC accuracy of current/voltage measurements, especially important at low signal levels. |
| Input Offset Drift (max) | ±3 µV/°C | ±1 µV/°C | Affects measurement stability over temperature; lower drift yields more consistent readings across operating conditions. |
| Gain Error (max) | ±0.3% | ±0.2% | Gain accuracy directly impacts absolute measurement precision and system calibration requirements. |
| Input Bandwidth (-3 dB) | 1 MHz | 280 kHz | Sets the maximum signal frequency the amplifier can faithfully pass; affects suitability for fast current-loop or motor control applications. |
| Isolation Rating (VISO) | 5000 V RMS | 5000 V RMS | Reinforced isolation voltage is critical for safety and regulatory compliance in high-voltage systems. |
| Supply Voltage (High Side) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Determines compatibility with the high-side power rail and logic levels of the isolated side. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Ensures reliable operation across industrial temperature extremes. |
| Package | 8-SOIC (DWV) | 8-SOIC (DWV) | Package footprint and pinout must match for drop-in board compatibility. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AMC1302DWVR | AMC1301DWVR |
|---|---|---|
| Part Status | Active | Active |
| Type | Isolation | - |
| Applications | Current Sensing, Power Management | - |
| Mounting Type | Surface Mount | Surface Mount |
| Amplifier Type | - | Isolation |
| Number of Circuits | - | 1 |
| Gain Bandwidth Product | - | 1 MHz |
| Current - Input Bias | - | 60 µA |
| Voltage - Input Offset | - | 50 µV |
| Supply Current | - | 5.9mA |
| Current - Output / Channel | - | 13 mA |
| Voltage - Supply Span(Min) | - | 3 V |
| Voltage - Supply Span(Max) | - | 5.5 V |
| Operating Temperature | - | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AMC1301DWVR and AMC1302DWVR isolated amplifiers?
Both are Texas Instruments reinforced isolated amplifiers in a 5.85 mm × 7.5 mm SOIC-8 (DWV) package, but they differ in input voltage range and gain. The AMC1301DWVR is a ±250 mV input, fixed-gain (8.2 V/V) isolated amplifier optimized for shunt-based current sensing, while the AMC1302DWVR is a ±50 mV input, fixed-gain (41 V/V) isolated amplifier intended for lower-voltage shunt sensing with higher gain.
Are the AMC1301DWVR and AMC1302DWVR pin-compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with the same pinout (VDD1, INP, INN, GND1, VDD2, OUTP, OUTN, GND2), so they are pin-compatible and share the same PCB land pattern.
What are the input voltage ranges of the AMC1301DWVR and AMC1302DWVR?
The AMC1301DWVR has a specified linear input range of ±250 mV, while the AMC1302DWVR has a specified linear input range of ±50 mV. The narrower input range of the AMC1302DWVR is paired with a higher fixed gain to produce a comparable output swing.
What are the fixed gains of the AMC1301DWVR and AMC1302DWVR?
The AMC1301DWVR has a fixed gain of 8.2 V/V, and the AMC1302DWVR has a fixed gain of 41 V/V. The gain difference corresponds to the different input ranges, so the output voltage span is similar for both devices when driven at their respective full-scale inputs.
Do the AMC1301DWVR and AMC1302DWVR provide reinforced isolation?
Yes. Both devices are reinforced isolated amplifiers rated for 5 kV RMS isolation (per UL 1577) and are designed for isolated current and voltage sensing in industrial and motor-drive applications. Designers should confirm the specific isolation ratings and certifications in the respective TI datasheets for their end-application requirements.
Can the AMC1301DWVR and AMC1302DWVR be used interchangeably in an existing design?
Not without design review. Although they are pin-compatible and share the same package and isolation family, their input ranges (±250 mV vs ±50 mV) and gains (8.2 V/V vs 41 V/V) differ. A direct swap changes the full-scale input and output scaling, so the shunt value, signal conditioning, and downstream ADC scaling must be revalidated against the TI datasheet for the target device.
What are the typical applications for the AMC1301DWVR versus the AMC1302DWVR?
The AMC1301DWVR is typically used for shunt-based current sensing where a ±250 mV full-scale shunt voltage is available, such as motor phase current and inverter current sensing. The AMC1302DWVR, with its ±50 mV input range and higher gain, is suited to low-voltage shunt sensing where a smaller shunt voltage drop is preferred to reduce power dissipation.
What supply voltage and output configuration do the AMC1301DWVR and AMC1302DWVR use?
Both devices use a dual-supply arrangement with a high-side supply (VDD1) and a low-side supply (VDD2), and both provide a differential output (OUTP/OUTN) intended for connection to a differential-input ADC or amplifier. Refer to the respective TI datasheets for the exact recommended supply voltage ranges and output common-mode specifications.