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| Part Number | OPA644U | OPA646U | OPA634U | OPA643U |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Burr Brown | Texas Instruments |
| Product Status | Active | Active | Obsolete | Obsolete |
| Amplifier Type | Current Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 1 | 1 | 1 |
| Output Type | - | - | - | - |
| Slew Rate | 2500V/µs | 180V/µs | 250V/µs | 1000V/µs |
| Gain Bandwidth Product | - | - | 140 MHz | 800 MHz |
| -3db Bandwidth | - | - | 150 MHz | - |
| Current - Input Bias | 20 µA | 2 µA | 25 µA | 19 µA |
| Voltage - Input Offset | 2.5 mV | 3 mV | 3 mV | 2.5 mV |
| Current - Supply | 18mA | 5.25mA | 12mA | 20mA |
| Current - Output / Channel | 75 mA | - | 100 mA | 60 mA |
| Voltage - Supply Span (Min) | 9 V | 9 V | 2.7 V | 9 V |
| Voltage - Supply Span (Max) | 11 V | 11 V | 10.5 V | 11 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
