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INA118U +BOM
This low power instrumentation amp provides reliable and accurate signal amplification in a compact package
SOIC (D)-8-
Produttore:
-
ProduttorePart #:
INA118U
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Scheda dati:
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Amplifier Type:
Instrumentation
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Number Of Circuits:
1
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Slew Rate:
0.9V/µs
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-3db Bandwidth:
800 kHz
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EDA/CAD Modelli:
Disponibilità: 7214 PZ
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INA118U Descrizione generale
The INA118 is a low-power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile, three op amp design and small size make this device an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth, even at high gain (70 kHz at G = 100).
A single external resistor sets any gain from 1 to 10000. Internal input protection can withstand up to ±40 V without damage.
The INA118 is laser-trimmed for low offset voltage (50 μV), drift (0.5 μV/°C), and high common-mode rejection (110 dB at G = 1000). The INA118 operates with power supplies as low as ±2.25 V, and quiescent current is only 350 μA, making this device an excellent choice for battery-operated systems.
The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, and specified for the –40°C to +85°C temperature range.
The upgraded INA818 offers a lower input stage offset voltage (35 μV, maximum), lower input bias current (0.5 nA maximum) and lower noise (8 nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.
Caratteristiche principali
- A newer version of this device is now available: INA818
- Low offset voltage: 50 μV, maximum
- Low drift: 0.5 μV/°C, maximum
- Low input bias current: 5 nA, maximum
- High CMR: 110 dB, minimum
- Inputs protected to ±40 V
- Wide supply range: ±2.25 to ±18 V
- Low quiescent current: 350 μA
- Packages: 8-Pin plastic DIP, SO-8
Applicazione
- Strain Gauge Measurement: It is used to amplify signals from strain gauges in applications like load cells and force sensors.
- Bridge Amplification: In applications where Wheatstone bridge sensors, such as pressure and weight sensors, are used, the INA118U can accurately amplify the differential voltage output.
- Medical Instrumentation: Used in medical devices like ECG (electrocardiogram) amplifiers to amplify small biopotential signals.
- Data Acquisition Systems: In precision data acquisition systems where accurate signal conditioning is essential.
- Industrial Automation: For amplifying signals in industrial automation and control systems.
- Sensor Interfaces: In applications that involve interfacing with various sensors, including thermocouples and photodetectors.
- Test and Measurement Equipment: In high-precision test and measurement instruments that require accurate signal amplification.
- Audio and Instrumentation: In audio equipment and musical instruments for accurate amplification of low-level audio signals.
- Signal Conditioning: In signal conditioning circuits for process control and industrial applications.
Specifiche
Category | Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps | Series | - |
Amplifier Type | Instrumentation | Number of Circuits | 1 |
Output Type | - | Slew Rate | 0.9V/µs |
-3db Bandwidth | 800 kHz | Current - Input Bias | 1 nA |
Voltage - Input Offset | 25 µV | Current - Supply | 350µA |
Current - Output / Channel | 12 mA | Voltage - Supply Span (Min) | 2.7 V |
Voltage - Supply Span (Max) | 36 V | Operating Temperature | -40°C ~ 85°C |
Mounting Type | Surface Mount | Base Product Number | INA118 |
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The sensor went for a short time. Put the battery, stuck in the pot after watering the plant, works.