Part A
AMC1200TDWVRQ1
Texas Instruments
- Lifecycle
- Active
- Stock
- 3480 PCS
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AMC1200TDWVRQ1 is a functionally compatible replacement candidate for the AMC1200BDWVR, sharing the same isolated amplifier architecture, SOIC-8 package, and gain characteristics, with the automotive-qualified variant offering extended temperature capability for demanding applications.
Package Type
High match
Input Configuration
High match
Operating Temperature
Validation required
Qualification Grade
Validation required
Parts at a glance
Part B
AMC1200BDWVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 6316 PCS
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
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 | AMC1200TDWVRQ1 | Why it matters |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Same manufacturer ensures consistent design, documentation, and quality processes. |
| Function / Type | Isolated amplifier (precision isolation amplifier) | Isolated amplifier (precision isolation amplifier) | Identical function confirms the parts are direct functional equivalents. |
| Isolation Voltage (VISO) | 4250 Vpeak (per UL1577) | 4250 Vpeak (per UL1577) | Determines the maximum safe galvanic isolation between input and output domains. |
| Input Offset Voltage (max) | ±1.5 mV | ±1.5 mV | Affects DC accuracy of the isolated measurement chain. |
| Gain | 8 V/V (fixed) | 8 V/V (fixed) | Fixed gain defines the signal scaling and must match for drop-in substitution. |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | Confirms compatibility with the same power rail in the target design. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +125°C | The wider automotive-grade range of the Q1 part allows use in harsher environments. |
| Qualification / Grade | Industrial grade | AEC-Q100 qualified (automotive grade) | Automotive qualification affects reliability screening and suitability for automotive applications. |
| Package / Pin Count | SOIC-8 (DWV), 8 pins | SOIC-8 (DWV), 8 pins | Same footprint and pinout enable direct PCB drop-in replacement. |
| Packaging / Ordering Suffix | Tape and reel (R suffix) | Tape and reel (R suffix), Q1 automotive suffix | Ordering suffix indicates qualification level and packaging, affecting procurement and traceability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AMC1200TDWVRQ1 | AMC1200BDWVR |
|---|---|---|
| Series | Automotive, AEC-Q100 | - |
| Part Status | Active | Active |
| Amplifier Type | Isolation | Isolation |
| Number of Circuits | 1 | 1 |
| Output Type | Differential | Differential |
| -3 dB Bandwidth | 100 kHz | 100 kHz |
| Voltage - Input Offset | 200 µV | 200 µV |
| Supply Current | 5.4mA | 5.4mA |
| Current - Output / Channel | 20 mA | - |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AMC1200BDWVR and the AMC1200TDWVRQ1?
The AMC1200BDWVR is the industrial-grade version of the AMC1200 isolated amplifier, while the AMC1200TDWVRQ1 is the automotive-qualified version. The primary differences are the qualification grade and the specified temperature range: the AMC1200BDWVR is specified for the industrial temperature range of –40°C to +105°C, whereas the AMC1200TDWVRQ1 is AEC-Q100 qualified and specified for the automotive temperature range of –40°C to +125°C. Both are functionally identical isolated amplifiers in the same SOIC-8 (DWV) package.
Are the AMC1200BDWVR and AMC1200TDWVRQ1 pin-compatible and package-compatible?
Yes. Both devices are offered in the same 8-pin SOIC (DWV) package with identical pin functions and PCB land patterns, so they are pin-to-pin and package-compatible. The difference lies in qualification grade and temperature rating, not in footprint or pinout.
What is the isolation rating of these devices?
Both the AMC1200BDWVR and AMC1200TDWVRQ1 are reinforced isolated amplifiers rated for 4 kV peak (4 kVPK) isolation per UL 1577, with a working voltage of 1.2 kVRMS and a maximum transient isolation voltage of 5 kVPK. These ratings are common to both variants.
What is the input voltage range and gain of the AMC1200 family?
The AMC1200 devices are designed for shunt-resistor-based current sensing with a nominal input range of ±250 mV and a fixed gain of 8 V/V. The output is a differential signal centered at a common-mode voltage of approximately 2.55 V, allowing direct connection to an ADC or microcontroller.
Can the AMC1200TDWVRQ1 be used in industrial applications, or is it automotive-only?
The AMC1200TDWVRQ1 is AEC-Q100 qualified for automotive use, but it can also be used in industrial applications. Its wider specified temperature range of –40°C to +125°C makes it suitable for harsh industrial environments as well. The AMC1200BDWVR remains the standard industrial-grade option where automotive qualification is not required.
What are the typical applications for these isolated amplifiers?
Both variants are used for isolated current and voltage sensing in motor drives, inverters, solar inverters, battery management systems, and power supplies. The AMC1200TDWVRQ1 is additionally suited to automotive systems such as traction inverters, on-board chargers, and DC-DC converters where AEC-Q100 qualification is required.
What supply voltage do the AMC1200BDWVR and AMC1200TDWVRQ1 require?
Both devices operate from a single 5 V supply on the high side (VDD1) and a 3.0 V to 5.5 V supply on the low side (VDD2), with the two supplies isolated from each other. This dual-supply arrangement supports level shifting between the isolated high-voltage domain and the low-voltage controller domain.
Which variant should be selected for an automotive design?
For automotive designs, the AMC1200TDWVRQ1 should be selected because it is AEC-Q100 qualified and specified over the –40°C to +125°C automotive temperature range. The AMC1200BDWVR is the industrial-grade variant and is not AEC-Q100 qualified, so it is not the appropriate choice for automotive-qualified designs.