INA143UAIn StockTexas Instruments
INA143UA is a high-speed, precision difference amplifier with selectable gains of G=10 or G=0.1, 96dB CMRR, 250µV max offset voltage, and 150kHz bandwidth. From $1.79, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- INA143UA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7900(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
- Selectable gain of G=10 or G=0.1 for flexible signal conditioning
- High CMRR of 96dB (typical) and 80dB (min) for superior common-mode noise rejection
- Low input offset voltage of 250µV max for precision measurement accuracy
- 150kHz bandwidth supports high-speed differential signal amplification
- Integrated frequency compensation for stable operation without external components
Applications
The INA143UA is well-suited for industrial instrumentation and precision measurement systems requiring differential signal amplification. It excels in data acquisition front-ends, bridge sensor interfaces, and audio signal processing where high CMRR and accurate gain are critical. Its dual gain setting also makes it ideal for programmable gain stages in medical equipment and test systems.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Bandwidth (3dB)-Nom | 0.15MHz |
| Common-mode Reject Ratio-Min | 80dB |
| Common-mode Reject Ratio-Nom | 96dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 250 µV |
| JESD-30 Code | R-PDSO-G8 |
| 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 | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.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 | 4.5V/us |
| Subcategory | Operational Amplifier |
| Supply Current-Max | 1.2mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Unity Gain BW-Nom | 150 |
| Voltage Gain-Max | 10 |
| Voltage Gain-Min | 0.1 |
| Voltage Gain-Nom | 10 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain options does the INA143UA support?
The INA143UA supports two fixed gain settings: G=10 for amplifying small differential signals and G=0.1 for attenuating large signals. These gains are set internally, providing precise and stable amplification without requiring external resistors.
What is the CMRR of the INA143UA and why does it matter?
The INA143UA achieves a typical common-mode rejection ratio (CMRR) of 96dB, with a minimum of 80dB. High CMRR is essential in industrial and instrumentation applications to reject noise and interference present on both input lines, ensuring accurate differential signal measurement.
What package does the INA143UA come in?
The INA143UA is available in an 8-pin SOIC (R-PDSO-G8) surface-mount package, making it suitable for compact PCB designs. It complies with JESD-609 e4 standards for lead-free and RoHS-compliant assembly.
What are typical applications for the INA143UA?
The INA143UA is commonly used in precision instrumentation, data acquisition systems, bridge sensor amplification, audio differential receivers, and medical equipment. Its high CMRR and selectable gain make it ideal wherever accurate differential signal conditioning is required.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.3500 | $3.35 |
| 3+ | $3.3000 | $9.90 |
| 5+ | $3.1400 | $15.70 |
| 10+ | $2.5170 | $25.17 |
| 75+ | $2.1197 | $158.98 |
| 500+ | $1.7900 | $895.00 |
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