| Part No.： | LT1997-1 |
| Page： | 30 Pages |
| Size： | 1501 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2023-12-27 10:00:13 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT1997IDF-1#PBF | Tube | 91 | 19971 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IDF-1#TRPBF | Reel | 2500 | 19971 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IDF-1#TRMPBF | Reel | 500 | 19971 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-1#PBF | Tube | 91 | 19971 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-1#TRPBF | Reel | 2500 | 19971 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-1#TRMPBF | Reel | 500 | 19971 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IMS-1#PBF | Tube | 37 | 19971 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997IMS-1#TRPBF | Reel | 2500 | 19971 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997IMS-1#TRMPBF | Reel | 500 | 19971 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997HMS-1#PBF | Tube | 37 | 19971 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT1997HMS-1#TRPBF | Reel | 2500 | 19971 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT1997HMS-1#TRMPBF | Reel | 500 | 19971 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP |
The LT1997-1 is a difference amplifier that can be used to amplify small differential signals while rejecting large common mode signals making it an ideal choice for current sense applications. It combines a precision operational amplifier with highly-matched resistors to form a one-chip solution to amplify and level shift voltages accurately using no external components. It comes with three standard pin-selectable gain options (10, 20 and 50), which can be further combined to form gains from 0.141 to 80 with accuracy of 0.012% (120ppm). The LT1997-1 also operates with input voltages between V– and V– + 76V (independent of V+), enabling robust operation in demanding industrial environments. Its excellent resistor matching results in a common mode rejection ratio of greater than 109dB (Gain = 10).
The resistors maintain their excellent matching over temperature; the matching temperature coefficient is guaranteed less than 1ppm/°C. The resistors are extremely linear with voltage, resulting in a gain nonlinearity of less than 2ppm.
The LT1997-1 is fully specified at 5V and ±15V supplies and from –40°C to 125°C. The device is available in space saving 16-lead MSOP and 4mm × 4mm DFN14 packages.
