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| Part Number | LMH6645MAX | LMH6645MFX | LMH6646MAX | LMH6647MAX | LMH6655MAX | LMH6643MAX | LMH6645MA |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | National Semiconductor |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | Active | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 1 | 2 | 1 | 2 | 2 | 1 |
| Output Type | Push-Pull, Rail-to-Rail | Push-Pull, Rail-to-Rail | Push-Pull, Rail-to-Rail | Push-Pull, Rail-to-Rail | - | Rail-to-Rail | Push-Pull, Rail-to-Rail |
| Slew Rate | 22V/µs | 22V/µs | 22V/µs | 22V/µs | 200V/µs | 135V/µs | 22V/µs |
| Gain Bandwidth Product | - | 55 MHz | - | - | 260 MHz | - | - |
| -3db Bandwidth | 55 MHz | 55 MHz | 55 MHz | 55 MHz | - | 130 MHz | 55 MHz |
| Current - Input Bias | 650 nA | 650 nA | 650 nA | 650 nA | 5 µA | 1.6 µA | 650 nA |
| Voltage - Input Offset | 1 mV | 1 mV | 1 mV | 1 mV | 1 mV | 1 mV | 1 mV |
| Current - Supply | 725µA | 725µA | 725µA (x2 Channels) | 725µA | 4.5mA (x2 Channels) | 2.7mA (x2 Channels) | 725µA |
| Current - Output / Channel | 20 mA | 20 mA | 20 mA | 20 mA | 120 mA | 75 mA | 20 mA |
| Voltage - Supply Span (Min) | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 4.5 V | 2.7 V | 2.5 V |
| Voltage - Supply Span (Max) | 12 V | 12 V | 12 V | 12 V | 12 V | 12.8 V | 12 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | SC-74A, SOT-753 | 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) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | SOT-23-5 | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
