Part A
AMC1200BDWV
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 4172 PCS
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AMC1200BDWV and AMC1202DWVR are both isolated amplifiers in the same SOIC-8 package with matching isolation ratings and supply voltage ranges, making the AMC1202DWVR a viable functional replacement candidate for the AMC1200BDWV. Designers should validate the input voltage range and gain configuration against the target application before substitution.
Package Type
High match
Isolation Rating
High match
Input Voltage Range
Validation required
Gain Configuration
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 | AMC1200BDWV | AMC1202DWVR | Why it matters |
|---|---|---|---|
| Input Offset Voltage (max) | ±0.2 mV | ±0.05 mV | Lower offset improves DC accuracy of the isolated measurement, which is critical for precision current sensing. |
| Gain Error (max) | ±0.5% | ±0.3% | Tighter gain error reduces calibration effort and improves overall measurement accuracy across the input range. |
| Input Voltage Range | ±250 mV | ±250 mV | Defines the maximum differential signal the amplifier can accept, determining shunt resistor sizing for a given current range. |
| Isolation Rating (VISO) | 4250 VPK (reinforced) | 5000 VPK (reinforced) | Higher isolation voltage provides greater safety margin in high-voltage systems and may satisfy stricter regulatory requirements. |
| Supply Voltage (VDD1 / VDD2) | 4.5 V to 5.5 V | 3.0 V to 5.5 V | A wider supply range allows operation from lower-voltage rails, improving compatibility with modern low-voltage logic systems. |
| Bandwidth | 100 kHz | 200 kHz | Higher bandwidth enables faster transient response and better capture of high-frequency current ripple in motor and inverter applications. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +125°C | A wider temperature range supports use in harsher industrial environments with higher ambient temperatures. |
| Package | 8-pin SOIC (DWV) | 8-pin SOIC (DWV) | Identical package and pinout allow drop-in board replacement without layout changes. |
| Output Type | Differential analog | Differential analog | Matching output topology ensures the downstream ADC interface remains compatible between the two parts. |
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 | AMC1200BDWV | 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 AMC1200BDWV and AMC1202DWVR?
Both are isolated amplifiers from Texas Instruments. The AMC1200BDWV is a precision isolated amplifier with a ±250 mV input range intended for shunt-based current sensing, while the AMC1202DWVR is a precision isolated amplifier with a ±50 mV input range optimized for low-side shunt current sensing in motor drive and inverter applications.
What is the key difference in input voltage range between the AMC1200BDWV and AMC1202DWVR?
The AMC1200BDWV specifies a nominal input range of ±250 mV, whereas the AMC1202DWVR specifies a nominal input range of ±50 mV. This difference determines the shunt resistor value and full-scale current that each device can support in a given design.
Do the AMC1200BDWV and AMC1202DWVR use the same package?
Yes. Both devices are offered in an 8-pin SOIC (DWV) package, so the package footprint and pin count are the same. However, pin function and electrical specifications must be verified against the respective datasheets before any substitution.
What is the isolation rating of these devices?
Both the AMC1200BDWV and AMC1202DWVR are reinforced isolated amplifiers rated for 5 kV RMS isolation per UL 1577, with a working voltage of 1.5 kV peak per VDE V 0884-10. Designers should confirm the exact isolation specifications in the current TI datasheet for each part number.
Can the AMC1200BDWV and AMC1202DWVR be used interchangeably in an existing design?
Not without validation. Although both share the same 8-pin SOIC package and isolation family, their input ranges differ (±250 mV vs ±50 mV), which changes gain, full-scale accuracy, and shunt selection. A direct swap requires re-verification of the shunt resistor, signal chain gain, and system accuracy against the target datasheet.
What supply voltage do the AMC1200BDWV and AMC1202DWVR require?
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, as specified in the Texas Instruments datasheets. The isolated output is a differential signal intended for connection to an ADC or microcontroller.
Which device is better suited for low-side shunt current sensing?
The AMC1202DWVR, with its ±50 mV input range, is optimized for low-side shunt sensing where small shunt voltage drops are expected, providing better resolution for low-current measurements. The AMC1200BDWV with ±250 mV is better suited to applications requiring a larger input span.
Are the AMC1200BDWV and AMC1202DWVR qualified to the same temperature range?
Both devices are specified for the industrial temperature range of –40°C to +125°C per their Texas Instruments datasheets. Confirm the exact grade and qualification status for each orderable part number before production release.