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Product Detailed Parameters
- Description：IC INST AMP 1 CIRCUIT 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Amplifier Type：Instrumentation
- Number of Circuits：1
- Output Type：-
- Slew Rate：0.16V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：10 nA
- Voltage - Input Offset：150 µV
- Current - Supply：60µA
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：2.2 V
- Voltage - Supply Span (Max)：36 V
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：120 kHz
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Overview
The INA122UA is a single-supply, micro-power instrumentation amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.2 V to 36 V and consumes a maximum operating current of 60 µA. The device features a 3 dB bandwidth of 120 kHz and a slew rate of 160 mV/µs. Key electrical specifications include a common-mode rejection ratio (CMRR) of 83 dB, an input bias current of 25 nA, and an input offset voltage of 500 µV. It is housed in an 8-SOIC package and supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Designed for low power consumption with micro-ampere current draw suitable for battery-operated systems
- Provides high common-mode rejection capabilities for accurate signal conditioning
- Operates effectively on a single power supply rail
Applications
- Battery-powered sensor interfaces
- Medical instrumentation
- Industrial process control
Procurement Notes
Verify the specific suffix 'UA' corresponds to the standard SOIC-8 package configuration. Confirm RoHS compliance status as indicated in official documentation. Ensure the ordering part number matches the required tape-and-reel quantity if applicable. Cross-reference the manufacturer datasheet for any recent design changes or lifecycle notices before finalizing procurement.
Selection Notes
Select this component when a low-cost, single-supply instrumentation amplifier is required. It is appropriate for applications where power efficiency is critical and moderate bandwidth suffices. Compare against higher precision models if lower offset voltage or higher CMRR is necessary. Verify that the 120 kHz bandwidth meets the signal frequency requirements of the target application.
Part Context
The INA122 belongs to the INA1xx series of instrumentation amplifiers from Texas Instruments. This family offers various gain options and performance levels. The INA122 specifically targets cost-sensitive and power-constrained applications compared to higher-performance counterparts like the INA128 or INA129. It shares the same basic three-op-amp architecture typical of this product line.
Replacement Considerations
The INA122U is the non-suffix equivalent of the INA122UA. Other members of the INA1xx family may serve as functional alternatives depending on specific gain and precision requirements.
