Datasheet for LT1997-2:
- Manufacturer Part Number : LT1997-2
- Manufacturer : AD
- Description : Precision, Wide Voltage Range, Gain Selectable Funnel Amplifier
- Series : LT1997-2
- Reference Price : USD 3.112
- Our Price : We have a better price, contact us by email
- Product Type : Specialty Amplifiers
- Function : Difference Amplifiers
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LT1997-2
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LT1997-2. If you need any more information about LT1997-2, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- Precision Attenuation: Gain = 0.1, 0.2, 0.25
- ±255V Common Mode Voltage Range
- 105dB Minimum CMRR (Gain = 0.1)
- 0.006% (60ppm) Maximum Gain Error
- 1ppm/°C Maximum Gain Error Drift
- 2ppm Maximum Gain Nonlinearity
- Wide Supply Voltage Range: 3.3V to 50V
- Rail-to-Rail Output
- 350μA Supply Current
- 80μV Maximum Op Amp Offset Voltage
- 1MHz –3dB Bandwidth (Gain = 0.1)
- Low Power Shutdown: 20μA
- Space-Saving MSOP and DFN Packages
The LT1997-2 is an attenuating (funnel) difference amplifierthat can be used to translate large differential signals tothe low voltage range compatible with ADCs. It combinesa precision operational amplifier with highly-matched resistorsto form a one-chip solution to attenuate and levelshift 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 toform gains from 0.0455 to 0.55 (attenuations of 1.82 to22) with accuracy of 0.006% (60ppm). The LT1997-2 alsoworks across a very wide input common-mode voltagerange (±255V), enabling robust operation in demandingindustrial environments. Its excellent resistor matchingresults in a common mode rejection ratio of greater than105dB.
The resistors maintain their excellent matching overtemperature; the matching temperature coefficient isguaranteed less than 1ppm/°C. The resistors are extremelylinear with voltage, resulting in a gain nonlinearity of lessthan 2ppm.
The LT1997-2 is fully specified at 5V and ±15V suppliesand from −40°C to 125°C. The device is available in spacesaving 16-lead MSOP and 4mm × 4mm DFN14 packages.
Applications
- High Voltage to Low Voltage Level Translation
- ADC Driver
- Bidirectional Wide Common Mode Range Voltage and Current Sensing
- Industrial Data-Acquisition Front-Ends
- Replacement for Isolation Circuits
- Differential to Single-Ended Conversion
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
