THS4281DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The THS4281DG4 is a very low-power, high-speed voltage-feedback operational amplifier from Texas Instruments featuring rail-to-rail input and output with 107dB typical common-mode rejection. It offers 85dB minimum CMRR with up to 1µA bias current in an 8-pin SOIC package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- THS4281DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output enabling full signal swing on low-voltage single-supply designs
- 107dB typical common-mode rejection ratio delivering exceptional noise immunity in precision signal paths
- Very low power consumption making it ideal for battery-operated and portable measurement equipment
- Voltage-feedback architecture with frequency compensation for stable closed-loop operation across a wide gain range
Applications
The THS4281DG4 is designed for portable and low-power signal conditioning applications such as sensor interfaces, portable medical instruments, and handheld test equipment where battery life is critical. Its rail-to-rail I/O and high CMRR make it well suited for differential measurement circuits and active filter designs in industrial data acquisition systems. The device also targets precision analog front-ends in wireless sensor nodes and IoT devices operating from constrained supply voltages.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 1 µA |
| Bias Current-Max (IIB) @25C | 0.8 µA |
| Common-mode Reject Ratio-Min | 85dB |
| Common-mode Reject Ratio-Nom | 107dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3500 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -8.25 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 35V/us |
| Supply Current-Max | 0.9mA |
| Supply Voltage Limit-Max | 8.25V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 95000 |
| Voltage Gain-Min | 17782.79 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for THS4281DG4:
Frequently Asked Questions
What is the common-mode rejection ratio of the THS4281DG4?
The THS4281DG4 provides a minimum CMRR of 85dB and a typical CMRR of 107dB, offering superior common-mode noise rejection for precision differential signal conditioning in industrial and medical applications.
What is the maximum input bias current of the THS4281DG4?
The THS4281DG4 has a maximum input bias current of 1µA at room temperature (0.8µA typical at 25°C), which should be accounted for in high-impedance source circuits to minimize offset errors.
What package does the THS4281DG4 use?
The THS4281DG4 is packaged in an 8-pin SOIC (Small Outline IC) package, providing a standard footprint for easy PCB layout and hand soldering, suitable for both prototyping and volume production designs.
Does the THS4281DG4 support rail-to-rail operation?
Yes, the THS4281DG4 supports both rail-to-rail input and rail-to-rail output operation, allowing the amplifier to process signals across the full supply voltage range and maximize dynamic range in low-voltage single-supply systems.
What amplifier architecture does the THS4281DG4 use?
The THS4281DG4 uses a voltage-feedback architecture with internal frequency compensation, ensuring stable closed-loop operation across various gain settings without requiring external compensation components in most standard configurations.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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