INA111BUE4 Texas Instruments In Stock
INA111BUE4 is a high-precision, FET-input instrumentation amplifier by Texas Instruments with low offset voltage and programmable gain from 1 to 10000. Key specs: 25µV max offset voltage, 0.001% gain accuracy, 50µA quiescent current. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of INA111BUE4?
- FET-input design with ultra-low input bias current (25pA max) for high-impedance source measurements
- Programmable gain from 1 to 10000 set by a single external resistor
- Low offset voltage of 25µV maximum for high-precision signal conditioning
- Wide supply voltage range ±5V to ±18V for flexible system integration
- Low quiescent current of 50µA enabling use in low-power applications
What is INA111BUE4 used for?
The INA111BUE4 is widely used in medical instrumentation such as ECG/EEG amplifiers and patient monitoring equipment, where high input impedance and low noise are critical. It is also employed in industrial data acquisition systems, bridge sensor signal conditioning, and thermocouple amplification. Additionally, it suits precision laboratory instruments and scientific measurement equipment that require accurate differential signal amplification.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for INA111BUE4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the gain range of the INA111BUE4?
The INA111BUE4 supports a programmable gain range from 1 to 10000. The gain is set by a single external resistor connected between pins 1 and 8, following the formula G = 1 + (50kΩ / RG). This flexibility makes it suitable for a wide variety of precision measurement applications.
What are the input bias current and offset voltage specifications?
The INA111BUE4 features a FET-input stage with a maximum input bias current of 25pA, making it ideal for high-impedance sources. The maximum input offset voltage is 25µV, ensuring minimal signal error in precision instrumentation applications such as medical sensors and bridge measurements.
What supply voltage does the INA111BUE4 require?
The INA111BUE4 operates from dual supply voltages ranging from ±5V to ±18V. This wide supply range allows it to interface with various analog front-end designs. The quiescent current is only 50µA, making it suitable for battery-operated and low-power measurement systems.
What package does the INA111BUE4 come in and what does the 'E4' suffix mean?
The INA111BUE4 is available in an 8-pin SOIC (Small Outline Integrated Circuit) surface-mount package. The 'U' in the part number denotes the SOIC package, and the 'E4' suffix is a Texas Instruments environmental suffix indicating the part meets RoHS-compliant, lead-free packaging requirements.
What are typical applications for the INA111BUE4?
Typical applications include medical instrumentation (ECG, EEG), industrial data acquisition, bridge sensor amplification, thermocouple signal conditioning, and scientific measurement equipment. Its high input impedance, low noise, and programmable gain make it a versatile choice for any precision differential signal amplification requirement.
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About Texas Instruments
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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