INA322EA/250In StockTexas Instruments
Texas Instruments INA322 single-supply micropower instrumentation amplifier with selectable gain (5 or 20), 55µA supply current, 2.7–5.5V supply range, MSOP-8 package. From $1.84 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- MSOP
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- INA322EA/250 Datasheet PDF
- Category
- amplifiers
- Price
- From $1.2700(MOQ 100)
- 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 5 or 20 via pin configuration
- Ultra-low 55µA quiescent supply current for battery-powered designs
- Wide 2.7V to 5.5V single-supply operation
- MSOP-8 package for compact PCB footprint
- –40°C to +85°C industrial temperature range
Applications
The INA322 is ideal for portable and battery-powered instrumentation requiring precision differential signal amplification with minimal power consumption. It suits medical monitoring equipment, handheld test instruments, and industrial sensor interfaces where low supply voltage and micropower operation are critical. The selectable gain simplifies system design for bridge sensor conditioning and thermocouple amplification.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | INSTRUMENTATION AMPLIFIER |
| Average Bias Current-Max (IIB) | 0.00001 µA |
| Bandwidth (3dB)-Nom | 0.5MHz |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 60dB |
| Input Offset Current-Max (IIO) | 0.0001 µA |
| Input Offset Voltage-Max | 10000 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Non-linearity-Max | 0.015% |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.4V/us |
| Supply Current-Max | 0.06mA |
| Supply Voltage Limit-Max | 7.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Gain-Max | 1000 |
| Voltage Gain-Min | 5 |
| Voltage Gain-Nom | 25 |
| Package | MSOP |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 2 |
| 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 gain options does the INA322EA/250 support?
The INA322EA/250 supports two selectable gain settings: 5 and 20. The gain is configured via an external pin, allowing designers to choose the appropriate amplification level without changing external resistors, simplifying the circuit layout for precision measurement applications.
What is the supply current consumption of the INA322EA/250?
The INA322EA/250 draws only 55µA of quiescent supply current, making it one of the most power-efficient instrumentation amplifiers available. This micropower characteristic makes it well-suited for battery-operated devices, wireless sensor nodes, and portable medical instruments where extending battery life is critical.
What supply voltage range does the INA322EA/250 operate on?
The INA322EA/250 operates from a single supply voltage ranging from 2.7V to 5.5V. This wide range accommodates common battery chemistries (two AA cells at 3V, Li-ion at 3.6–4.2V) and standard 3.3V or 5V logic rails, providing flexible integration into modern low-voltage system designs.
What package does the INA322EA/250 use and how many pins does it have?
The INA322EA/250 is housed in an MSOP-8 (Mini Small Outline Package) with 8 pins. The compact MSOP-8 footprint measures approximately 3mm × 3mm, enabling dense PCB layouts in space-constrained applications such as handheld instruments and wearable medical devices.
What are typical applications for the INA322EA/250?
Typical applications for the INA322EA/250 include bridge sensor conditioning (strain gauges, pressure sensors), thermocouple and RTD signal amplification, portable medical monitors such as pulse oximeters and glucose meters, battery-powered data acquisition systems, and industrial 4–20mA loop-powered transmitters where low power consumption and accurate differential amplification are 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 |
|---|---|---|
| 100+ | $1.8400 | $184.00 |
| 500+ | $1.4300 | $715.00 |
| 1000+ | $1.3500 | $1350.00 |
| 10000+ | $1.2700 | $12700.00 |
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