Part A
AMC3330QDWERQ1
德州儀器
- Lifecycle
- Active
- Stock
- 3759 件
- Package
- SOIC-16
- Series
- 線性放大器-專用
Replacement verdict
Compatible functional replacement candidate
The AMC3330QDWERQ1 and AMC3330DWE are functionally compatible isolated amplifiers sharing the same core architecture, package footprint, and electrical characteristics; the automotive-qualified Q1 variant is a suitable replacement candidate for the standard grade in most applications, with qualification-level validation recommended for safety-critical deployments.
Package Type
High match
Isolation Rating
High match
Input Voltage Range
High match
Qualification Grade
Validation required
Parts at a glance
Part B
AMC3330DWE
德州儀器
- Lifecycle
- Active
- Stock
- 8987 件
- Package
- SOIC-16
- Series
- 線性放大器-專用
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AMC3330QDWERQ1 | AMC3330DWE | Why it matters |
|---|---|---|---|
| Automotive Qualification | AEC-Q100 qualified (Grade 1) | Not AEC-Q100 qualified (industrial grade) | The Q1 variant is qualified for automotive use, which is essential for functional substitutability in automotive designs; the industrial part is not. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Both cover the same extended industrial/automotive temperature range, so thermal substitutability is equivalent. |
| Input Voltage Range | ±1 V (fully differential) | ±1 V (fully differential) | Identical input range means the same signal levels can be measured, preserving measurement compatibility. |
| Isolation Rating | Reinforced isolation, 5 kV RMS (per datasheet) | Reinforced isolation, 5 kV RMS (per datasheet) | Matching isolation ratings ensure equivalent safety and creepage/clearance performance in high-voltage applications. |
| Supply Voltage (High Side) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Same high-side supply range allows the same power rail to be reused without redesign. |
| Supply Voltage (Low Side) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Identical low-side supply range supports drop-in replacement on the controller side. |
| Package | 16-pin SOIC (DWE) | 16-pin SOIC (DWE) | Same package and pinout enable direct PCB footprint compatibility. |
| Gain | Fixed gain of 1 (per datasheet) | Fixed gain of 1 (per datasheet) | Equal gain preserves the transfer function, so system calibration remains valid. |
| Bandwidth | ~1 MHz (typical, per datasheet) | ~1 MHz (typical, per datasheet) | Matching bandwidth ensures equivalent dynamic response for current/voltage sensing loops. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AMC3330QDWERQ1 | AMC3330DWE |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Type | Isolation Amplifier | Isolated |
| Applications | - | Driver |
| Mounting Type | Surface Mount | Surface Mount |
| Series | Automotive, AEC-Q100 | - |
Frequently asked questions
What are the key differences between the AMC3330QDWERQ1 and the AMC3330DWE?
The primary difference is qualification and packaging. The AMC3330QDWERQ1 is an automotive-qualified device (AEC-Q100 Grade 1) supplied in a 16-pin SOIC (DWE) package with an extended temperature range of -40°C to +125°C. The AMC3330DWE is the industrial-grade version in the same 16-pin SOIC (DWE) package, specified over -40°C to +125°C as well, but without automotive qualification. Both share the same reinforced isolated amplifier function, ±1-V input range, and differential output.
Are the AMC3330QDWERQ1 and AMC3330DWE pin-to-pin and functionally compatible?
Yes. Both devices are offered in the same 16-pin SOIC (DWE) package with identical pinout and the same core isolated amplifier architecture, ±1-V input range, and differential output. The Q1 variant adds automotive qualification and is intended for automotive applications, while the DWE is the industrial-grade equivalent.
What is the input voltage range and output configuration of these devices?
Both the AMC3330QDWERQ1 and AMC3330DWE are isolated amplifiers with a ±1-V input voltage range and a differential output. They are designed for shunt-based current sensing and voltage sensing in isolated systems, providing reinforced isolation between the input and output sides.
What isolation rating do the AMC3330QDWERQ1 and AMC3330DWE provide?
Both devices are reinforced isolated amplifiers rated for 5-kV RMS isolation (per the AMC3330 family datasheet) and are suitable for reinforced isolation applications. Designers should confirm the specific isolation parameters (working voltage, transient immunity) against the official TI datasheet for the exact grade being used.
Can the AMC3330DWE be used as a drop-in replacement for the AMC3330QDWERQ1 in an automotive design?
No. The AMC3330DWE is the industrial-grade version and is not AEC-Q100 qualified. For automotive designs requiring AEC-Q100 qualification, the AMC3330QDWERQ1 must be used. The DWE may be used only in non-automotive applications where automotive qualification is not required.
What is the operating temperature range for these two devices?
Both the AMC3330QDWERQ1 and AMC3330DWE are specified over an operating temperature range of -40°C to +125°C. The Q1 variant's Grade 1 automotive qualification is defined over this same temperature range.
What package do the AMC3330QDWERQ1 and AMC3330DWE use, and is it RoHS compliant?
Both devices are supplied in a 16-pin SOIC (DWE) package. TI's DWE package is lead-free and RoHS compliant. Designers should verify the specific ordering code's compliance status on the official TI product page or an authorized distributor listing.