| Part No.： | LT1997-2 |
| Page： | 26 Pages |
| Size： | 2771 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2023-12-27 10:05:34 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LT1997IDF-2#PBF | Tube | 91 | 19972 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IDF-2#TRPBF | Reel | 2500 | 19972 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IDF-2#TRMPBF | Reel | 500 | 19972 | 1 | 14 | -40°C ~ 85°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-2#PBF | Tube | 91 | 19972 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-2#TRPBF | Reel | 2500 | 19972 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997HDF-2#TRMPBF | Reel | 500 | 19972 | 1 | 14 | -40°C ~ 125°C | 14-Lead (4mm × 4mm) Plastic DFN | |
| LT1997IMS-2#PBF | Tube | 37 | 19972 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997IMS-2#TRPBF | Reel | 2500 | 19972 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997IMS-2#TRMPBF | Reel | 500 | 19972 | 1 | 16 | -40°C ~ 85°C | 16-Lead Plastic MSOP | |
| LT1997HMS-2#PBF | Tube | 37 | 19972 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT1997HMS-2#TRPBF | Reel | 2500 | 19972 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP | |
| LT1997HMS-2#TRMPBF | Reel | 500 | 19972 | 1 | 16 | -40°C ~ 125°C | 16-Lead Plastic MSOP |
The LT1997-2 is an attenuating (funnel) difference amplifier that can be used to translate large differential signals to the low voltage range compatible with ADCs. It combines a precision operational amplifier with highly-matched resistors to form a one-chip solution to attenuate and level shift voltages accurately using no external components. It comes with three standard pin-selectable gain options (0.1, 0.2 and 0.25), which can be further combined to form gains from 0.0455 to 0.55 (attenuations of 1.82 to 22) with accuracy of 0.006% (60ppm). The LT1997-2 also works across a very wide input common-mode voltage range (±255V), enabling robust operation in demanding industrial environments. Its excellent resistor matching results in a common mode rejection ratio of greater than 105dB.
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 LT1997-2 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.
