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Name: OPA170AIDBVR
Brand: Texas Instruments
SKU: OPA170AIDBVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments OPA170AIDBVR

Part No.:: OPA170AIDBVR

Manufacturer:: Texas Instruments

Package:: SC-74A, SOT-753

Datasheet:: OPA170AIDBVR.pdf

Description:: IC OPAMP GP 1 CIRCUIT SOT23-5

In Stock:: 3260

Quantity:: Add To Cart

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OPA170AIDBVR Typical application Circuitry

OPA170AIDBVR

The OPA170AIDBVR is a single, micro-power, rail-to-rail output operational amplifier designed for low-voltage, battery-powered applications. It is characterized by its low input bias current, wide bandwidth, and the ability to operate from a single supply, making it suitable for sensor signal conditioning, battery current monitoring, and portable medical devices.

Application Scenarios:

A typical application for the OPA170AIDBVR is in a portable, battery-powered gas detection sensor, where it amplifies the signal from a gas sensor for subsequent processing and analysis.

Parameter Characteristics:

The OPA170AIDBVR features include a low quiescent current, wide supply voltage range, rail-to-rail output capability, and robust ESD protection. These attributes make it highly suited for portable, battery-operated devices requiring long battery life and high precision.

Circuit Connection Details:

- Power Supply Connection: The OPA170AIDBVR is optimized for single-supply operation, which is common in portable applications. Connect the positive end of the battery to the V+ pin (pin 5) and the ground to the V− pin (pin 3).

- Sensor Signal Input: Connect the output from the gas sensor to the non-inverting input (pin 4) of the OPA170AIDBVR. A series input resistor may be used for protection, and a bypass capacitor can be added to filter out noise from the sensor signal.

- Feedback Network for Gain Configuration: Establish the desired gain by connecting a feedback resistor from the output (pin 6) to the inverting input (pin 2). In addition, use the formula $1 + \frac{R_{feedback}}{R_{ground}}$ to set the gain by connecting a resistor from the inverting input to ground.

- Output to ADC: The amplified sensor signal from the output of the OPA170AIDBVR can be directed to an analog-to-digital converter (ADC) for digitization.If necessary, block any DC offset with a coupling capacitor.

Design Considerations:

- Power Supply Decoupling: To ensure stable operation of the OPA170AIDBVR, it's crucial to use decoupling capacitors close to the power supply pins.By doing this, power supply noise is reduced and signal amplification accuracy is increased.

- Protecting the Input: Given the potentially harsh environments where gas sensors are used, protect the OPA170AIDBVR input with series resistors and, if needed, clamp diodes to safeguard against voltage spikes.

- Minimizing Power Consumption: For battery-powered devices, minimizing power consumption is key. Choose feedback and input resistors with higher values to reduce the current draw, but consider the impact on bandwidth and noise.

- PCB Layout for Noise Minimization: In sensitive analog applications, the PCB layout is critical. Keep the signal paths short and well-separated from any digital or high-current paths to minimize noise and interference.

By integrating the OPA170AIDBVR with these design considerations, developers can create efficient, precise, and reliable amplification circuits for gas detection sensors in portable devices, ensuring safety and performance in various environments.

OPA170AIDBVR information

OPA170AIDBVR Specifications

Package/Case:
SC-74A, SOT-753
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
Rail-to-Rail
SlewRate:
0.4V/µs
GainBandwidthProduct:
1.2 MHz
-3dbBandwidth:
-
Current-InputBias:
8 pA
Voltage-InputOffset:
250 µV
Current-Supply:
110µA
Current-Output/Channel:
17 mA
Voltage-SupplySpan(Min):
2.7 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of OPA170AIDBVR?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of OPA170AIDBVR.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations