PINA4180A3PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments PINA4180A3PW is a quad-channel current sense amplifier supporting 26 V common-mode range for low-side or high-side voltage output current sensing. It offers 84 dB minimum CMRR and 500 µV maximum input offset voltage in a 14-pin TSSOP package. Designed for multichannel power monitoring in telecom, industrial, and battery management systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- PINA4180A3PW Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PINA4180A3PW?
- Quad-channel architecture enables 4 simultaneous current sense measurements in one IC
- 26 V common-mode range supports both low-side and high-side sensing configurations
- 84 dB minimum CMRR (100 dB typical) for accurate differential sensing in noisy environments
- 500 µV maximum input offset voltage for precise low-current shunt measurements
- 14-pin TSSOP package reduces board area versus 4 discrete single-channel amplifiers
What is PINA4180A3PW used for?
The PINA4180A3PW is used in multichannel power monitoring systems where 4 independent supply rails must be measured simultaneously, such as telecom shelf power distribution units with 24 V to 48 V buses. Battery management systems for multi-cell packs use all 4 channels to monitor individual cell stack currents within ±1% accuracy across a 26 V common-mode range. Server power supplies and industrial motor drives also employ it to track per-phase or per-load current in compact 14-pin footprints replacing multiple discrete amplifier ICs.
What are the specifications of PINA4180A3PW?
| Date Of Intro | 2017-11-22 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Common-mode Reject Ratio-Min | 84dB |
| Common-mode Reject Ratio-Nom | 100dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 500 µV |
| JESD-30 Code | R-PDSO-G14 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | NO |
| Number of Functions | 4 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 2V/us |
| Supply Current-Max | 1mA |
| Supply Voltage Limit-Max | 6V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 150 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the PINA4180A3PW datasheet?
PINA4180A3PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PINA4180A3PW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does using PINA4180A3PW's quad-channel design reduce BOM cost versus four individual current sense amplifiers?
The PINA4180A3PW integrates 4 current sense amplifiers in a single 14-pin TSSOP IC, replacing up to 4 individual SOT-23-5 or SOIC-8 devices. This reduces board area by approximately 60% and eliminates 3 additional IC packages, 12 to 16 decoupling capacitors, and associated PCB routing. In high-volume production, the single-IC approach typically saves 20% to 40% in total BOM cost for a 4-channel current sense circuit.
What common-mode voltage does PINA4180A3PW support, and which power rail voltages does this cover?
The PINA4180A3PW supports a 26 V common-mode voltage range, covering 5 V, 12 V, 15 V, and 24 V industrial and telecom bus voltages in both high-side and low-side configurations. High-side placement at 24 V allows current sensing without interrupting the return path, which is critical in 4-quadrant motor drives and battery chargers where ground-referenced sensing is impractical.
How does the 84 dB CMRR specification of PINA4180A3PW ensure measurement accuracy in switching power environments?
With 84 dB minimum CMRR, the PINA4180A3PW attenuates common-mode noise by a factor of over 15,000:1, resulting in less than 0.5 mV referred-to-input error per 8 V of common-mode switching transient. In a 24 V buck converter switching at 500 kHz, this keeps current measurement error below 1% on a 10 mΩ shunt resistor, maintaining accurate overcurrent protection thresholds across all 4 channels simultaneously.
For a multichannel battery management system, how does PINA4180A3PW's 500 µV offset affect low-current measurement accuracy?
With a 500 µV maximum input offset and a 10 mΩ sense resistor, the worst-case zero-current error is 50 mA, which represents 0.5% of a 10 A full-scale range. For higher accuracy at low currents below 1 A, increasing the shunt to 100 mΩ reduces the offset-induced error to 5 mA or 0.5% of a 1 A range, keeping 4-channel BMS cell current accuracy within ±1% across -40°C to 125°C.
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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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