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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：0.5 pA
- Voltage - Input Offset：200 µV
- Current - Supply：40µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.5 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-55°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- -3db Bandwidth：500 kHz
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Overview
The INA321EA/2K5 is a single-channel micro-power instrumentation amplifier from Texas Instruments, designed for single-supply CMOS applications. It features a 500 kHz bandwidth and a common-mode rejection ratio of 90 dB. The device operates on supply voltages between 2.7 V and 5.5 V with an operating current of 40 uA. Key electrical parameters include a 1 mV input offset voltage, 10 pA input bias current, and 86.02 dB power supply rejection ratio. It is housed in a VSSOP-8 package and supports a gain range of 5 V/V to 1000 V/V.
Feature Summary
- Provides high precision signal amplification by detecting differential signals from interference voltages.
- Maintains accuracy in electrically noisy environments through high common-mode rejection capabilities.
- Optimized for driving sampling analog-to-digital converters with low power consumption.
Applications
- Driving sampling A/D converters
- General-purpose precision signal conditioning
- Battery-powered measurement systems
Procurement Notes
Verify the specific suffix EA/2K5 against the manufacturer datasheet to confirm the VSSOP-8 packaging and reel quantity specifications. Ensure the component meets RoHS compliance requirements as indicated in official documentation before procurement integration.
Selection Notes
Select this component when single-channel precision is required within a compact surface-mount footprint. The low quiescent current makes it suitable for battery-operated devices, while the wide gain range accommodates various sensor interface needs without external resistor networks.
Part Context
This part belongs to the INA321 series of micro-power instrumentation amplifiers. It shares architectural similarities with other members like the INA2321 but differs in channel count and package type. The series is characterized by CMOS technology enabling operation at low supply voltages.
FAQ
What is the maximum supply voltage for the INA321EA/2K5?
The maximum supply voltage is 5.5 V.
Does the INA321 support rail-to-rail output?
The datasheet specifies a full-scale output swing capability but does not explicitly label it as rail-to-rail in the provided summary data.
