OPA643U vs OPA646U Comparison
Detailed side-by-side comparison of OPA643U by Texas Instruments and OPA646U by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | OPA643U | OPA646U |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Amplifier ICs | Amplifier ICs |
| Lifecycle Status | Active | Active |
| Product Type | Wideband low-distortion high-gain operational amplifier | Low-power, wide-bandwidth operational amplifier |
| Architecture | De-compensated voltage-feedback architecture with two internal gain stages | — |
| Gain-Bandwidth Product | 800 MHz | [DATA_NEEDED: gain-bandwidth product] |
| Slew Rate | 1000 V/µs | [DATA_NEEDED: slew rate] |
| Input Voltage Noise | 2.3 nV/√Hz | — |
| Low-Distortion Frequency | 5 MHz | — |
| Minimum Stable Gain | 3 | — |
| OPA643U Package | 8-pin SOIC | — |
| Terminal Count | 8 terminals | — |
| Package Shape | Rectangular | — |
| Terminal Form | Gull wing | — |
| Temperature Grade | Industrial | — |
| Mounting Type | Surface mount | Surface mount |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | [DATA_NEEDED: supply voltage range] |
| Input Offset Voltage | [DATA_NEEDED: input offset voltage] | [DATA_NEEDED: input offset voltage] |
| Input Bias Current | [DATA_NEEDED: input bias current] | [DATA_NEEDED: input bias current] |
| Common-Mode Input Range | [DATA_NEEDED: common-mode input voltage range] | — |
| Output Voltage Swing | [DATA_NEEDED: output voltage swing] | [DATA_NEEDED: output voltage swing] |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification status] | — |
| Amplifier Type | — | Voltage-feedback amplifier |
| Number of Circuits | — | 1 circuit per package |
| Package | — | 8-pin SOIC |
| Manufacturer | — | Burr-Brown, acquired by Texas Instruments |
| Equivalent Input Noise | — | [DATA_NEEDED: equivalent input noise] |
| Input Common-Mode Range | — | [DATA_NEEDED: input common-mode range] |
| Quiescent Current | — | [DATA_NEEDED: quiescent current] |
| Open-Loop Gain | — | [DATA_NEEDED: open-loop gain] |
| Unity-Gain Bandwidth | — | [DATA_NEEDED: unity-gain bandwidth] |
| Verified Distributor Price | — | USD 1.6474 as of 2026-10-28 |