INA106KP - Precision Gain 10 Differential Amplifier | Texas Instruments
N.º de pieza: INA106KP ✗ Fin de vidaINA106KP Descripción general
A differential amplifier is a circuit that amplifies the voltage difference between two input terminals while rejecting common-mode signals. In the broader semiconductor hierarchy, the INA106KP belongs to the instrumentation amplifier and special-purpose amplifier family, within the amplifier IC and analog signal-processing categories. Its integrated precision resistor network is designed to improve gain accuracy and common-mode rejection while reducing the number of external components required in sensor, bridge, and measurement applications.
The INA106 family is specified as a gain-of-10 differential amplifier. The manufacturer describes the device as using a precision operational amplifier together with on-chip metal-film resistors. These resistors are laser trimmed for accurate gain and high common-mode rejection, while their temperature coefficient tracking is intended to preserve gain accuracy and CMRR over temperature. The available verified data does not provide the complete electrical limits, so detailed voltage, current, bandwidth, and temperature specifications are marked as data needed below rather than estimated.
Typical uses include conditioning low-level differential sensor signals, bridge outputs, current-shunt measurements, and industrial instrumentation where a fixed gain of 10 is suitable. Because the gain is integrated and fixed, the device is most useful when the system designer wants repeatable gain accuracy without selecting and balancing external precision resistors. The PCB footprint should use the manufacturer’s 8-pin plastic DIP drawing, with supply and signal routing completed according to the datasheet’s recommended layout.
A key design consideration is that the INA106KP is not a general-purpose unity-gain op-amp substitute. Its fixed gain, internal resistor network, input topology, supply requirements, and pin functions must match the original circuit. Designers should confirm differential input range, common-mode range, output swing, supply voltage, noise, and stability requirements against the current INA106 datasheet before production use.
This page consolidates verified manufacturer and distributor information, documented package details, engineering application guidance, and a strict drop-in replacement review. It distinguishes confirmed INA106KP facts from parameters that require confirmation from the manufacturer datasheet, helping engineers shortlist the part without presenting unverified electrical values as facts.
Alternativas directas para INA106KP — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasINA106KP Valores máximos y características eléctricas
| Product Type | Precision fixed-gain differential amplifier |
| Nominal Differential Gain | 10 V/V |
| Circuit Count | 1 amplifier |
| Encapsulado | 8-pin plastic DIP (PDIP) |
| Tipo de montaje | Through-hole |
| Internal Amplifier | Precision operational amplifier |
| Gain Network | On-chip metal-film resistors |
| Resistor Calibration | Laser trimmed |
Guía de configuración de pines de INA106KP 8-pin plastic dip (pdip)
Configuración de pines para INA106KP (encapsulado 8-pin plastic dip (pdip)). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para INA106KP.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
INA106KP es adecuado para 6 aplicacións: Precision Bridge Sensor Conditioning, Current-Shunt Measurement, Industrial Instrumentation, Medical Signal Front End, Audio Differential Input, Portable Sensor Interface.
Precision Bridge Sensor Conditioning
The INA106KP fits bridge-sensor front ends whose small differential output must be amplified by a stable factor of 10. According to the Texas Instruments datasheet, the internal metal-film resistor network is laser trimmed for accurate gain and high common-mode rejection, reducing the need for manually matched external gain resistors. Place the amplifier close to the bridge and keep the differential input route compact to minimize pickup of interference. The main design limit is that the bridge-generated differential signal and common-mode voltage must both remain within the INA106 electrical limits, while the multiplied output must remain inside the output swing range. Confirm those limits and the exact pin connections in the manufacturer datasheet before finalizing the PCB.
Recomendado
Current-Shunt Measurement
INA106KP is appropriate for measuring the differential voltage generated across a current shunt when a gain of 10 is sufficient. The fixed-gain differential architecture rejects the common-mode voltage present on the shunt nodes while amplifying the smaller polarity-dependent difference. The integrated, laser-trimmed resistor network supports repeatable gain accuracy without an external precision divider, although shunt placement and Kelvin routing remain important. Verify the shunt voltage, amplifier supply, common-mode range, and resulting output swing against the INA106 manufacturer datasheet. This arrangement is especially useful where a clean, compact measurement stage is preferred over a multi-resistor differential amplifier.
Recomendado
Industrial Instrumentation
The INA106KP can serve as the analog measurement front end in industrial instrumentation that converts a low-level differential input into a level suitable for downstream sampling. Its nominal gain of 10 provides a defined signal transformation, while the precision internal resistors are intended to maintain accurate gain and CMRR over temperature. A practical implementation should use a stable reference or regulated supply, provide local bypass capacitance, route the differential pair away from switching nodes, and avoid loading the output unnecessarily. Because the supplied verified data does not expose complete input, output, noise, and bandwidth limits, engineers must check the current INA106 datasheet before setting bandwidth, filter values, and operating margins.
Recomendado
Medical Signal Front End
INA106KP may be considered for low-level differential medical-sensor conditioning when its fixed gain of 10 and documented laser-trimmed resistor network match the electrode or bridge signal. The differential input structure helps reject common-mode interference, and the integrated gain network reduces the component count of a precision analog front end. The design must still validate input protection, common-mode limits, output range, noise, stability, and isolation requirements for the intended medical system. The verified data does not provide medical qualification or complete safety ratings, so the part should not be represented as a qualified medical solution without separate regulatory and electrical review.
Recomendado
Audio Differential Input
INA106KP is usable for a balanced audio input or other small-signal differential stage when a gain of 10 is appropriate. Its fixed differential gain and integrated precision resistors simplify the input stage, while high common-mode rejection can help preserve the intended difference between balanced signal lines. Designers should account for the device's actual bandwidth, slew rate, noise, output swing, and supply requirements from the official datasheet rather than assuming general-purpose op-amp performance. Input and output coupling, grounding, and protection must also be designed around the INA106 pinout. For a higher-performance audio design, a dedicated low-noise op-amp and external resistor network may provide more flexibility.
Recomendado
Portable Sensor Interface
INA106KP can support a compact differential sensor interface when the system requires a defined gain of 10 rather than an adjustable or extremely low-power analog function. The integrated resistor network reduces board area, and the laser-trimmed gain characteristics support repeatable signal scaling across production units. A portable design still needs careful attention to supply voltage, quiescent consumption, common-mode range, and output loading because the supplied records do not provide those values. Verify battery-rail compatibility and power-budget requirements in the INA106 manufacturer datasheet. If low quiescent current is the dominant constraint, a discrete low-power amplifier design may be more suitable.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para INA106KP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
No alternative is recommended from the supplied evidence because the cross-reference results did not establish a part with the same 8-pin plastic DIP footprint, matching pin functions, gain of 10, and compatible electrical performance. INA105KP appears in a comparison result, but that is insufficient evidence for drop-in use. If an alternative is evaluated, compare package, pinout, supply voltage, common-mode range, output swing, gain accuracy, CMRR, bandwidth, slew rate, noise, and stability before changing the PCB.
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | 8-pin plastic DIP (PDIP) |
| Brand | Texas Instruments |
| Product Type | Precision fixed-gain differential amplifier |
| Nominal Gain | 10 V/V |
| Amplifier Circuit Count | 1 |
| Gain Network | On-chip laser-trimmed metal-film resistors |
| Mounting Type | Through-hole |
| Verified Unit Price as of 2026-10-29 | $2.6346 |
Diferenciadores clave
- Fixed gain eliminates an external precision gain network (frente a Discrete op-amp difference amplifier)
- Integrated precision resistor tracking (frente a INA105KP)
- Compact one-amplifier instrumentation function (frente a Discrete op-amp difference amplifier)
Notas de diseño
Route the differential input as a compact, balanced pair and place the INA106KP close to the source. Continuous ground planes are preferable to fragmented ground routing, while the input nodes should remain away from switching-regulator outputs and high-current return paths. Follow the manufacturer datasheet for the exact input-pin arrangement because the supplied verified snippets do not include a complete numbered pin table.
Confirm the allowed supply voltage, input common-mode range, and output swing before selecting bypass capacitors or a power rail. Decouple the supply pins at the device with the capacitance recommended by the INA106 datasheet, and account for supply ripple because a fixed-gain amplifier preserves input-referred noise while the downstream system may interpret that noise as a meaningful signal.
Do not treat INA106KP as a conventional unity-gain operational amplifier. Its gain is fixed at 10, and substituting external feedback components on the INA106-specific pins will not create an adjustable-gain version. Also avoid assuming that a similarly packaged amplifier is interchangeable: verify pin functions, supply limits, CMRR, gain accuracy, output swing, and stability from each candidate's datasheet.
Choose input and output filtering around the actual signal bandwidth rather than adding capacitance directly to sensitive inputs without checking stability. For a practical filter, calculate the differential signal amplitude at the INA106 input, multiply it by the nominal gain of 10, and confirm that the result remains within the device's output range. Then evaluate noise and offset contributions at the final system resolution.
Información de cumplimiento
The supplied manufacturer and distributor records do not state INA106KP compliance status. No compliance attribute has been inferred.
