Part A
AMC3330DWER
德州儀器
- Lifecycle
- Active
- Stock
- 3848 件
- Package
- SOIC-16
- Series
- 專用集成電路
Replacement verdict
Compatible functional replacement candidate
The AMC3330QDWERQ1 and AMC3330DWER are functionally compatible isolated delta-sigma modulators sharing the same core architecture, package footprint, and electrical characteristics; the primary distinction is the Q1 automotive qualification grade of the AMC3330QDWERQ1 versus the standard industrial grade of the AMC3330DWER, so selection depends on the target application's qualification and temperature requirements.
Package Type
High match
Functional Architecture
High match
Qualification Grade
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
AMC3330QDWERQ1
德州儀器
- Lifecycle
- Active
- Stock
- 3759 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 | AMC3330DWER | Why it matters |
|---|---|---|---|
| Automotive Qualification | AEC-Q100 qualified (Grade 1) | Not AEC-Q100 qualified | The Q1 variant is qualified for automotive use, so it is mandatory for automotive designs while the non-Q1 part is intended for industrial applications. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Both cover the same extended industrial/automotive temperature range, so thermal capability is equivalent for substitutability. |
| Input Voltage Range | ±1 V (fully differential) | ±1 V (fully differential) | Identical input range means the same signal sensing front-end can be reused without redesign. |
| Isolation Rating | Reinforced, 5 kV RMS (per datasheet) | Reinforced, 5 kV RMS (per datasheet) | Matching reinforced isolation ratings ensure equivalent safety performance in high-voltage measurement applications. |
| Supply Voltage (High Side / Low Side) | 3.0 V to 5.5 V (both sides) | 3.0 V to 5.5 V (both sides) | Same supply requirements allow the same power rails and decoupling to be used for either part. |
| Package | 16-pin SOIC (DWE) | 16-pin SOIC (DWE) | Identical package and pinout enable drop-in PCB compatibility between the two parts. |
| Gain | Fixed gain of 1 (per datasheet) | Fixed gain of 1 (per datasheet) | Same fixed gain preserves the signal scaling and calibration of the measurement channel. |
| Output Interface | Differential analog output | Differential analog output | Matching output type ensures the downstream ADC or signal chain remains compatible. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AMC3330DWER | AMC3330QDWERQ1 |
|---|---|---|
| Part Status | Active | Active |
| Type | Isolated Amplifier | Isolation Amplifier |
| Mounting Type | Surface Mount | Surface Mount |
| Series | - | Automotive, AEC-Q100 |
Frequently asked questions
What are the key differences between the AMC3330QDWERQ1 and the AMC3330DWER?
The primary difference is qualification and grade. The AMC3330QDWERQ1 is an automotive-qualified device (Q1 suffix) that is AEC-Q100 qualified and specified for the extended automotive temperature range of –40°C to +125°C. The AMC3330DWER is the industrial-grade version, specified for –40°C to +125°C as well, but without AEC-Q100 automotive qualification. Both are isolated amplifiers in the same 16-pin SOIC (DWE) package with identical core electrical parameters.
Are the AMC3330QDWERQ1 and AMC3330DWER pin-to-pin and package compatible?
Yes. Both devices are offered in the same 16-pin SOIC (DWE) package with the same pinout and PCB land pattern, so they are pin-to-pin compatible. The difference is the qualification grade, not the package or pin function.
Can the AMC3330DWER be used as a drop-in replacement for the AMC3330QDWERQ1 in an automotive design?
No. The AMC3330DWER is not AEC-Q100 qualified and is not the automotive-grade variant. For automotive applications requiring AEC-Q100 qualification, the AMC3330QDWERQ1 must be used. Substitution should only be made after validating against the manufacturer's qualification documentation and the target design requirements.
What is the isolation rating of these devices?
Both the AMC3330QDWERQ1 and AMC3330DWER are reinforced isolated amplifiers rated for 5 kV RMS isolation (per the datasheet's isolation specifications) in the 16-pin SOIC package. Designers should confirm the exact isolation parameters (such as VISO, VIORM, and VIOWM) from the official manufacturer datasheet for the specific grade.
Do both devices share the same input voltage range and gain?
Yes. Both the AMC3330QDWERQ1 and AMC3330DWER are isolated amplifiers with a ±1 V input voltage range and a fixed gain of 2, providing a differential output. The core analog signal-chain specifications are the same across both grades; the difference is qualification and temperature-grade documentation.
What is the operating temperature range for each device?
Both the AMC3330QDWERQ1 and AMC3330DWER are specified for an operating temperature range of –40°C to +125°C. The Q1 automotive grade is additionally qualified to AEC-Q100 standards for use in automotive environments.
Which device should be selected for an industrial versus an automotive application?
For automotive applications requiring AEC-Q100 qualification, select the AMC3330QDWERQ1. For industrial applications where AEC-Q100 qualification is not required, the AMC3330DWER is the appropriate grade. Both share the same package, pinout, and core electrical performance, so selection is driven by qualification and end-market requirements.