INA2143UG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The INA2143UG4 is a dual precision difference amplifier from Texas Instruments with voltage-feedback architecture, offering a minimum CMRR of 86dB (typical 96dB) and a maximum input offset voltage of 500µV. It operates on ±18V or 36V single supply and is housed in a 14-pin SOIC package, making it ideal for differential voltage measurement and signal conditioning in industrial instrumentation.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- INA2143UG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual channel precision difference amplifier in a single package
- Excellent CMRR: 86dB minimum, 96dB typical for noise rejection
- Low input offset voltage: 500µV maximum for precision measurements
- Wide supply range: ±18V dual or 36V single supply
- Internal frequency compensation for unconditional stability
- 14-pin SOIC package with RoHS e4 lead-free compliance
Applications
The INA2143UG4 is used in industrial process control, power monitoring, bridge amplifier circuits, and high-voltage differential signal measurement applications where two independent precision difference amplifier stages are needed in a compact form factor. It is also employed in current sensing, analog multiplexer signal conditioning, and instrumentation systems requiring accurate rejection of common-mode voltages on high-side measurement paths.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Common-mode Reject Ratio-Min | 86dB |
| Common-mode Reject Ratio-Nom | 96dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 500 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| 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 | 5V/us |
| Supply Current-Max | 2.4mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the typical CMRR of the INA2143UG4?
The INA2143UG4 offers a typical common-mode rejection ratio (CMRR) of 96 dB, with a specified minimum of 86 dB. This high CMRR makes it well-suited for rejecting common-mode noise in differential voltage measurement applications.
What supply voltage options are supported by the INA2143UG4?
The INA2143UG4 operates on a dual supply of ±18V or a single supply of up to 36V, providing flexibility for use in a wide range of industrial and instrumentation power environments.
What package does the INA2143UG4 come in and how many channels does it have?
The INA2143UG4 is a dual-channel precision difference amplifier housed in a 14-pin SOIC (Small Outline Integrated Circuit) package. Having two independent channels in a single package helps reduce board space in multi-channel signal conditioning designs.
What is the maximum input offset voltage of the INA2143UG4?
The INA2143UG4 has a maximum input offset voltage of 500 µV. This low offset voltage ensures high accuracy in precision measurement and differential signal conditioning applications.
In what applications is the INA2143UG4 commonly used?
The INA2143UG4 is commonly used in industrial instrumentation, data acquisition systems, differential voltage measurement, bridge amplifier circuits, and signal conditioning where high CMRR and precision are critical requirements.
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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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