OPA646U vs OPA643U Comparison
Detailed side-by-side comparison of OPA646U by Texas Instruments and OPA643U 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 | OPA646U | OPA643U |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Amplifier ICs | Amplifier ICs |
| Lifecycle Status | Active | Active |
| Product Type | Low-power, wide-bandwidth operational amplifier | Wideband low-distortion high-gain operational amplifier |
| Amplifier Type | Voltage-feedback amplifier | — |
| Number of Circuits | 1 circuit per package | — |
| Package | 8-pin SOIC | — |
| Mounting Type | Surface mount | Surface mount |
| Manufacturer | Burr-Brown, acquired by Texas Instruments | — |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | [DATA_NEEDED: supply voltage range] |
| Gain-Bandwidth Product | [DATA_NEEDED: gain-bandwidth product] | 800 MHz |
| Slew Rate | [DATA_NEEDED: slew rate] | 1000 V/µs |
| 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] |
| Equivalent Input Noise | [DATA_NEEDED: equivalent input noise] | — |
| Input Common-Mode Range | [DATA_NEEDED: input common-mode range] | — |
| Output Voltage Swing | [DATA_NEEDED: output voltage swing] | [DATA_NEEDED: output voltage swing] |
| Quiescent Current | [DATA_NEEDED: quiescent current] | — |
| Open-Loop Gain | [DATA_NEEDED: open-loop gain] | — |
| Unity-Gain Bandwidth | [DATA_NEEDED: unity-gain bandwidth] | — |
| 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] |
| Verified Distributor Price | USD 1.6474 as of 2026-10-28 | — |
| Architecture | — | De-compensated voltage-feedback architecture with two internal gain stages |
| 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 |
| Common-Mode Input Range | — | [DATA_NEEDED: common-mode input voltage range] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification status] |