INA281A1IDBVT Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The INA281A1IDBVT is a high-voltage current-sense amplifier from Texas Instruments supporting common-mode voltages up to 110V with 120dB CMRR. It features a fixed gain and operates from a 2.7V to 5.5V supply in a SOT-23 5-pin package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- INA281A1IDBVT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4293(MOQ 10)
- 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 INA281A1IDBVT?
- Ultra-high common-mode voltage range up to 110V enables direct high-voltage bus monitoring
- Industry-leading 120dB minimum CMRR (140dB typical) rejects common-mode noise for accurate measurements
- Compact SOT-23 5-pin package saves board space in space-constrained designs
- Wide supply voltage range of 2.7V to 5.5V compatible with modern low-voltage microcontrollers
What is INA281A1IDBVT used for?
The INA281A1IDBVT is designed for high-side current sensing in industrial motor drives, electric vehicle battery management systems, and solar inverter circuits where bus voltages can exceed 100V. Its exceptional CMRR of 120dB minimum makes it ideal for precision power monitoring in noisy environments such as switched-mode power supplies and industrial automation equipment. The compact SOT-23 footprint suits portable medical instruments, telecom power systems, and server power monitoring modules.
What are the specifications of INA281A1IDBVT?
| Date Of Intro | 2020-08-31 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | CURRENT-FEEDBACK |
| Average Bias Current-Max (IIB) | 30 µA |
| Bias Current-Max (IIB) @25C | 30 µA |
| Common Mode Voltage-Max | 110V |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 140dB |
| Frequency Compensation | NO |
| Input Offset Voltage-Max | 500 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 2.5V/us |
| Supply Current-Max | 2.25mA |
| Supply Voltage Limit-Max | 22V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 1300 |
| Voltage Gain-Nom | 20 |
| Wideband | NO |
| ## INA281A1IDBVT Alternates Showing results | Image |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the INA281A1IDBVT datasheet?
INA281A1IDBVT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for INA281A1IDBVT?
Compatible alternatives and drop-in replacements for INA281A1IDBVT:
Frequently Asked Questions
What is the maximum common-mode voltage for the INA281A1IDBVT?
The INA281A1IDBVT supports a maximum common-mode voltage of 110V, making it suitable for direct monitoring of high-voltage power rails without additional attenuation circuitry. This allows it to measure current on 24V, 48V, and even higher-voltage industrial bus systems.
What is the CMRR of the INA281A1IDBVT?
The INA281A1IDBVT provides a minimum common-mode rejection ratio (CMRR) of 120dB and a typical CMRR of 140dB. This outstanding rejection capability ensures accurate current measurements even in high-noise environments with large common-mode voltage swings.
What package is the INA281A1IDBVT available in?
The INA281A1IDBVT is packaged in a SOT-23 5-pin (DBV) package, which is a small surface-mount form factor ideal for space-constrained PCB designs. The package dimensions are approximately 1.6mm x 2.9mm, compatible with reflow soldering processes.
What supply voltage does the INA281A1IDBVT require?
The INA281A1IDBVT operates from a supply voltage range of 2.7V to 5.5V, making it directly compatible with 3.3V and 5V microcontroller and logic systems. The low supply voltage requirement also reduces power consumption in portable applications.
What are typical applications for the INA281A1IDBVT?
Typical applications include high-voltage motor current sensing, EV battery management, solar panel string monitoring, industrial power supplies, and server power distribution units. The 110V common-mode range and precision measurement capability make it well suited for any system requiring accurate current monitoring at elevated voltages.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $1.9750 | $19.75 |
| 25+ | $1.8060 | $45.15 |
| 100+ | $1.6200 | $162.00 |
| 1250+ | $1.4643 | $1830.36 |
| 1750+ | $1.4464 | $2531.27 |
| 2500+ | $1.4293 | $3573.20 |
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