INA146UA Texas Instruments amplifiers (SOIC-8) In Stock
INA146UA is a precision difference amplifier (gain=1 V/V) from Texas Instruments in SOIC-8, featuring 80dB CMRR and ±15V supply. In stock from $1.38/unit (qty 218+), MOQ 1, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- INA146UA Datasheet PDF
- Category
- amplifiers
- Price
- From $1.3769(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed gain of 1 V/V with 0.02% gain accuracy
- 80dB common-mode rejection ratio (CMRR) at DC
- Wide supply range: ±2.25V to ±18V
- Industrial temperature range: -40°C to +125°C
- Low offset voltage: 200µV max
- SOIC-8 compact package for easy PCB integration
Applications
The INA146UA is widely used in industrial data acquisition systems and instrumentation where precise differential signal measurement is required. It suits motor control feedback circuits, bridge sensor amplification, and high-side current sensing in power supplies. Its wide supply range and robust CMRR also make it ideal for medical equipment front-end amplification and PLC analog input modules.
Specifications
| Gain | 1V/V |
| Gain Accuracy | 0.02% |
| CMRR (DC) | 80dB |
| Supply Voltage (±) | 2.25 to 18V |
| Input Offset Voltage | 200µV |
| Operating Temperature | -40 to +125°C |
| Package | SOIC-8 |
| Pin Count | 8 |
| Supply Current | 1.3mA |
| Output Voltage Swing | ±13V |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA146UA:
Same SOIC-8 difference amplifier family from TI; INA132 offers gain=1 with slightly different input range, pin-compatible drop-in alternative.
Precision difference amplifier, gain=1 V/V, MSOP-8, comparable CMRR and offset specs; suitable cross-reference for INA146UA in space-constrained designs.
Frequently Asked Questions
What is the gain of the INA146UA?
The INA146UA has a fixed gain of 1 V/V (unity gain) with a tight gain accuracy of 0.02% (200ppm). This is set by an internal precision resistor network, eliminating the need for external gain-setting resistors and ensuring consistent performance across production.
What supply voltage does the INA146UA require?
The INA146UA operates from a dual (split) supply ranging from ±2.25V to ±18V, with ±15V being the typical operating voltage. It does not support single-supply operation, so a bipolar power rail is required in your design.
What package and pin count does the INA146UA come in?
The INA146UA is available in an 8-pin SOIC package (small-outline IC). The 'UA' suffix designates the SOIC-8 package. Pin 1 and Pin 8 are the inverting and non-inverting inputs; Pin 6 is the output. Refer to the TI datasheet for the complete pinout diagram.
What are typical applications for the INA146UA?
Typical applications include industrial data acquisition, bridge sensor amplification, motor drive feedback, high-side current sensing, and medical instrumentation front-ends. Its 80dB CMRR makes it especially effective at rejecting power-line noise in noisy industrial environments.
What is the minimum order quantity and price for INA146UA?
The INA146UA is available with MOQ 1. Pricing starts at $5.92 for single units, dropping to $1.49 at 135 pieces, $1.43 at 175 pieces, and $1.38 at 218 pieces. Stock is available for immediate inquiry and worldwide shipping.
Related Guides
24LC01B I2C EEPROM Design Guide: Pinout, Write Timing, and Package Selection
Complete application note for the Microchip 24LC01B 1 Kbit I2C EEPROM: address wiring, pull-up sizing, acknowledge polling, page-write alignment, and package selection.
Jun 1, 2026
AD8531ARTZ-REEL7 Application Note: High-Current Op-Amp Design Guide
A complete design guide for the AD8531ARTZ-REEL7 250 mA rail-to-rail op-amp: decoupling, thermal budgeting, capacitive load stability, and PCB layout best practices.
Jun 1, 2026
AD7607BSTZ Application Note: 8-Channel Simultaneous Sampling ADC Design Guide
Complete design guide for the AD7607BSTZ 8-channel 14-bit simultaneous-sampling ADC: power supply, grounding, anti-aliasing, interface, and common pitfalls.
May 31, 2026
24LC01B-I/SN Selection Guide: How to Choose the Right Microchip I2C EEPROM Variant
Compare 24LC01B-I/SN, MSOP-8, SOT-23-5, and other Microchip 1 Kbit I2C EEPROM variants. Pick the right package, temp grade, and stocking option for your design.
May 31, 2026
Why Buy from FindMyChip
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+ | $5.9200 | $5.92 |
| 135+ | $1.4888 | $200.99 |
| 175+ | $1.4328 | $250.74 |
| 218+ | $1.3769 | $300.16 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”