LT1997IDF-1#PBF Analog Devices Integrated Circuit (Other) In Stock
The LT1997IDF-1#PBF is a single rail-to-rail output difference amplifier from Analog Devices with ±25V supply range and 96dB typical CMRR. It features ultra-low 5nA bias current and automotive-grade qualification in a compact 12-pin DFN EP package. Ideal for precision differential signal acquisition in high-voltage industrial systems.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LT1997IDF-1#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.6800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ±25V supply range enables operation in high-voltage industrial and automotive 24V bus systems
- 96dB typical CMRR ensures precise common-mode rejection for differential signal acquisition
- Ultra-low 5nA bias current minimizes input loading on high-impedance sensors
- Rail-to-rail output maximizes dynamic range on low supply voltage designs
- Automotive-grade 12-pin DFN EP package with exposed pad for efficient thermal dissipation
Applications
The LT1997IDF-1#PBF excels in automotive battery management systems and motor drive applications requiring accurate differential voltage sensing across 24V or 48V bus rails. Its 96dB CMRR and ultra-low 5nA bias current make it suitable for precision current shunt monitoring and bridge sensor amplification in industrial instrumentation. The automotive qualification ensures reliable operation across -40°C to +125°C for harsh environment deployments.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1963 |
| Date Of Intro | 2018-10-24 |
| YTEOL | 9 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.015 µA |
| Bias Current-Max (IIB) @25C | 0.005 µA |
| Common-mode Reject Ratio-Min | 81dB |
| Common-mode Reject Ratio-Nom | 96dB |
| Frequency Compensation | NO |
| Input Offset Voltage-Max | 200 µV |
| JESD-30 Code | S-PDSO-N12 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -30 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | YES |
| Slew Rate-Min | 1.7V/us |
| Slew Rate-Nom | 4V/us |
| Supply Current-Max | 0.004mA |
| Supply Voltage Limit-Max | 30V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Voltage Gain-Min | 80 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What common-mode rejection ratio does the LT1997IDF-1#PBF achieve and why does it matter?
The LT1997IDF-1#PBF achieves a minimum CMRR of 81dB and a typical CMRR of 96dB. High CMRR is critical in differential amplifier applications because it determines how well the device rejects noise and interference common to both inputs, such as ground-loop voltages in industrial 24V bus environments or automotive chassis noise.
How does the LT1997IDF-1#PBF handle high-impedance sensor sources with its bias current specification?
The LT1997IDF-1#PBF has a maximum bias current of only 5nA at 25°C and a maximum average bias current of 15nA. This extremely low input current prevents significant voltage offset errors when driven by high-impedance sensors such as piezoelectric transducers, thermopiles, or Wheatstone bridge circuits with source impedances above 100kΩ.
Is the LT1997IDF-1#PBF suited for 48V automotive bus monitoring designs?
Yes, the LT1997IDF-1#PBF supports ±25V or 50V single supply range, covering the 48V automotive bus architecture used in mild-hybrid vehicles. Its automotive-grade qualification and -40°C minimum operating temperature ensure reliable differential voltage measurement across battery cells and shunt resistors in 48V powertrain and regenerative braking systems.
What are the package dimensions and thermal advantages of the LT1997IDF-1#PBF DFN EP?
The LT1997IDF-1#PBF is housed in a 12-pin DFN package with an exposed pad (EP) on the bottom, which provides a direct thermal path to the PCB copper plane. This reduces junction-to-ambient thermal resistance significantly compared to SOIC packages, allowing the amplifier to operate reliably at ambient temperatures up to +125°C in confined automotive ECU enclosures.
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Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
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| 10+ | $7.3780 | $73.78 |
| 19+ | $6.2000 | $117.80 |
| 1000+ | $4.6800 | $4680.00 |
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