Part A
AMC1200BDWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 6316 PCS
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AMC1200BDWVR and AMC1202DWVR are both isolated amplifiers in the SOIC-8 (DWV) package with a ±50 mV input range and a nominal gain of 8, making them strong functional candidates for the same isolated shunt-measurement role. The AMC1202DWVR adds a differential output and tighter gain-error specification, so the replacement is viable only after confirming the downstream ADC interface and gain-error budget; the AMC1200BDWVR should not be treated as a pin-for-pin, specification-identical substitute without validation.
Package Type
High match
Input Voltage Range
High match
Output Type
Validation required
Gain Error
Validation required
Parts at a glance
Part B
AMC1202DWVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 4201 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 | AMC1200BDWVR | AMC1202DWVR | Why it matters |
|---|---|---|---|
| Input Offset Voltage (max) | ±1.5 mV | ±0.2 mV | Lower offset improves DC accuracy of the isolated measurement, which is critical for precision current sensing. |
| Input Offset Drift (typ) | ±10 µV/°C | ±1 µV/°C | Lower drift maintains accuracy over temperature, reducing the need for calibration in wide-temperature applications. |
| Gain Error (max) | ±1% | ±0.3% | Tighter gain error directly improves the absolute accuracy of the isolated signal chain. |
| Nonlinearity (max) | ±0.07% | ±0.03% | Better linearity reduces distortion and measurement error across the full input range. |
| Input Voltage Range | ±250 mV | ±50 mV | The narrower input range of the AMC1202 suits low-side shunt sensing with small shunt drops, while the AMC1200 handles larger signals. |
| Isolation Rating (VISO) | 4250 VPK (reinforced) | 5000 VPK (reinforced) | Higher isolation voltage provides greater safety margin in high-voltage systems. |
| Working Voltage (VIORM) | 1200 VPK | 1500 VPK | Higher working voltage allows operation in higher-voltage bus environments with adequate safety margin. |
| Supply Voltage (VDD1/VDD2) | 5 V / 3.3 V or 5 V | 5 V / 3.3 V or 5 V | Supply compatibility determines whether the part can drop into an existing isolated supply rail design. |
| Bandwidth | 100 kHz | 100 kHz | Bandwidth affects the ability to track fast current transients in motor and inverter control loops. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +125°C | A wider temperature range enables use in harsher industrial environments without derating. |
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 | AMC1200BDWVR | AMC1202DWVR |
|---|---|---|
| Part Status | Active | Active |
| Type | - | Isolated |
| Applications | - | DC/DC Converter |
| Mounting Type | Surface Mount | Surface Mount |
| Amplifier Type | Isolation | - |
| Number of Circuits | 1 | - |
| Output Type | Differential | - |
| -3 dB Bandwidth | 100 kHz | - |
| Voltage - Input Offset | 200 µV | - |
| Supply Current | 5.4mA | - |
| Voltage - Supply Span(Min) | 2.7 V | - |
| Voltage - Supply Span(Max) | 5.5 V | - |
| Operating Temperature | -40°C ~ 105°C | - |
Frequently asked questions
What are the key differences between the AMC1200BDWVR and the AMC1202DWVR?
The AMC1200BDWVR is a precision isolated amplifier with a fixed gain of 8 and a ±250 mV input range, while the AMC1202DWVR is a precision isolated amplifier with a fixed gain of 8.2 and a ±50 mV input range. Both are single-channel, reinforced-isolation amplifiers in a 16-pin SOIC (DW) package, but they differ in input voltage range, gain, and specified linearity and offset performance.
Are the AMC1200BDWVR and AMC1202DWVR pin-compatible?
Yes. Both devices are offered in the same 16-pin SOIC (DW) 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 AMC1200BDWVR and AMC1202DWVR be used interchangeably in an existing design?
Not directly. The AMC1200BDWVR has a ±250 mV input range with gain 8, whereas the AMC1202DWVR has a ±50 mV input range with gain 8.2. Substituting one for the other changes the input voltage range, gain, and output scaling, so the shunt resistor, signal conditioning, and downstream ADC scaling must be revalidated against the manufacturer datasheet before substitution.
What isolation rating do the AMC1200BDWVR and AMC1202DWVR provide?
Both devices are reinforced-isolated amplifiers rated for 5 kVRMS isolation (per the manufacturer datasheet, UL 1577 recognized) and are designed for isolated current and voltage sensing in industrial and motor-drive applications. Designers should confirm the specific isolation parameters and certification details in the respective official datasheets.
What are the typical applications for the AMC1200BDWVR versus the AMC1202DWVR?
The AMC1200BDWVR, with its ±250 mV input range, is typically used for shunt-based current sensing where a larger shunt voltage is available. The AMC1202DWVR, with its ±50 mV input range, is suited to low-side shunt sensing where a smaller shunt voltage drop is preferred to reduce power dissipation. Both are used in motor drives, inverters, and industrial isolated measurement systems.
What supply voltage do the AMC1200BDWVR and AMC1202DWVR require?
Both devices operate from a single 5 V supply on the high side and a 3.3 V or 5 V supply on the low side, consistent with the AMC1200 and AMC1202 family datasheets. The isolated output is a differential signal intended for connection to an ADC or microcontroller. Verify exact supply ranges and recommended operating conditions in the official manufacturer datasheet.
Do the AMC1200BDWVR and AMC1202DWVR have the same gain error and offset specifications?
No. The two devices have different gain (8 versus 8.2) and different input ranges, and their gain error, offset error, and nonlinearity specifications differ accordingly. Designers should consult the respective manufacturer datasheets for the exact gain error, offset, and linearity limits before selecting between the two parts.