INA128UA/2K5
Texas Instruments
The Texas Instruments INA128UA/2K5 is a precision instrumentation amplifier offering high CMRR and low input offset voltage. It operates over a wide supply voltage range.
| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,600 pcs
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2600 pcs | On Request | 1 | On Request | On Request | 22+18+ | On Request | On Request |
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The Texas Instruments INA128HD is an active, high-temperature precision, low-power instrumentation amplifier designed for demanding applications. It features a single channel and supports a wide supply voltage range from 4.5 V to 36 V, or ±2.25 V to ±18 V for dual supplies.
Key electrical specifications include a maximum voltage gain of 10000 V/V, a low input offset voltage of ±125 µV maximum (25 µV typical), and a low input bias current of ±10 nA maximum (50 nA typical). The device boasts a high Common-Mode Rejection Ratio (CMRR) of 113 dB minimum (95 dB typical) and an input protection up to ±40 V.
With an operating temperature range of -55°C to 175°C, and options for extended ranges up to 210°C, the INA128HD is suitable for extreme temperature applications. It is available in a SOIC package, measuring 29.4 mm² (4.9 mm × 6 mm).
Applications include bridge amplifiers, thermocouple amplifiers, RTD sensor amplifiers, medical instrumentation, and data acquisition systems that require high precision and reliability in harsh environments.
| Qty | Low | High |
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| 1+ | $97.57 | $97.57 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The INA128HD operates from a single supply of 4.5V to 36V or dual supplies of ±2.25V to ±18V.
The INA128HD is available in an SOIC (D) package with dimensions 4.9mm × 6mm (29.4mm²).
The standard operating temperature range is -55°C to 175°C, with custom ranges up to 210°C available.
The typical input offset voltage is 25µV, with a maximum of ±125µV.
The minimum CMRR is 113dB, with a typical value of 95dB.
Yes, the inputs are protected to ±40V.
The bandwidth at minimum gain is 1.3MHz typical.