Transimpedance Amplifiers

A transimpedance amplifier (TIA) is a current to voltage converter which is used to amplify the current output from different types of sensors to a proportional voltage. Transimpedance amplifiers are used with sensors which have a current response that is more linear than the voltage response.
Transimpedance amplifiers are also referred to as current to voltage converters or I to V converters.

Passive or Active?

• Passive current to voltage converters uses only passive elements. There are however limitations with these types of amplifiers as the current source and output load must be ideal for proper operation. The output load resistance must be close to infinity, current from the current source must be independent of the voltage and the current source must have infinite internal resistance. As these conditions are virtually impossible to attain, passive current to voltage converters is rarely used.
• Active current to voltage converters is based on active elements like a bipolar junction transistor (BJT), field effect transistor (FET) or an operational amplifier (opamp). The most common combination is using a transimpedance amplifier with an operational amplifier.

What are the typical applications of the transimpedance amplifier?
There are a lot of possible applications for transimpedance amplifiers due to the amount of day to day electronics we use. A transimpedance amplifier allows for more advanced circuitry such as servomechanisms and light meters.

What is a accuracy of transimpedance amplifier?

The accuracy may depend on many aspects of the signal such as its condition, hysteresis or linearity. Also, the working temperature and environmental conditions have an impact on accuracy. This can be improved by using additional circuit integrated elements e.g. noise filters.

What are the most important specifications of TIA?

Before making a decision os one TIA or another, you should consider a few most important values e.g:

• bandwidth
• noise
• signal bandwidth
• gain
• capacitance

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Beskrivning Pris Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Number of Channels per Chip Typical Slew Rate Output Type Typical Gain Bandwidth Product Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Temperature
RS-artikelnummer 660-6626
Tillv. art.nrRCV420JP
VarumärkeTexas Instruments
88,82 kr
Each
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- 11.4 → 36 V - - 1.5V/µs - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm +85 °C
RS-artikelnummer 923-3675
Tillv. art.nrRCV420JP
VarumärkeTexas Instruments
74,349 kr
Each (In a Tube of 25)
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- 11.4 → 36 V - - 1.5V/µs - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm +85 °C
RS-artikelnummer 102-5659
Tillv. art.nrIVC102U
VarumärkeTexas Instruments
87,39 kr
Each (In a Tube of 50)
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Dual - ±15V 1 3V/µs - 2MHz Surface Mount SOIC 14 8.65 x 3.91 x 1.58mm 1.58mm 8.65mm +85 °C
RS-artikelnummer 162-5196
Tillv. art.nrOPA2381AIDGKT
VarumärkeTexas Instruments
18,848 kr
Each (On a Reel of 250)
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Single 3 V, 5 V - 2 12V/µs - 18MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
Nytt
RS-artikelnummer 191-3954
Tillv. art.nrMAX40658ETA+
VarumärkeMaxim Integrated
27,559 kr
Each (In a Tube of 100)
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Single 3.3 V - 3 - Differential 360MHz Surface Mount TDFN 8 3.1 x 3.1 x 0.75mm 0.75mm 3.1mm +85 °C
RS-artikelnummer 660-4314
Tillv. art.nrOPA2381AIDGKT
VarumärkeTexas Instruments
27,50 kr
Each
Enheter
Single 3 V, 5 V - 2 12V/µs - 18MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS-artikelnummer 162-5447
Tillv. art.nrOPA380AIDGKT
VarumärkeTexas Instruments
32,994 kr
Each (On a Reel of 250)
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Single 3 V, 5 V - 1 - - 90MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS-artikelnummer 660-9852
Tillv. art.nrOPA381AIDGKT
VarumärkeTexas Instruments
19,96 kr
Each
Enheter
Single 3 V, 5 V - 1 12V/µs - 18MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS-artikelnummer 162-5448
Tillv. art.nrOPA381AIDGKT
VarumärkeTexas Instruments
12,667 kr
Each (On a Reel of 250)
Enheter
Single 3 V, 5 V - 1 12V/µs - 18MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS-artikelnummer 660-4273
Tillv. art.nrIVC102U
VarumärkeTexas Instruments
104,33 kr
Each
Enheter
Dual - ±15V 1 3V/µs - 2MHz Surface Mount SOIC 14 8.65 x 3.91 x 1.58mm 1.58mm 8.65mm +85 °C
RS-artikelnummer 661-2422
Tillv. art.nrOPA380AIDGKT
VarumärkeTexas Instruments
47,77 kr
Each
Enheter
Single 3 V, 5 V - 1 - - 90MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS-artikelnummer 709-5049
Tillv. art.nrAD8015ARZ
VarumärkeAnalog Devices
88,30 kr
Each
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Dual, Single 5 V ±2.5V 1 - Differential - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
Nytt
RS-artikelnummer 191-4941
Tillv. art.nrMAX40658ETA+
VarumärkeMaxim Integrated
36,562 kr
Each (In a Pack of 5)
Enheter
Single 3.3 V - 3 - Differential 360MHz Surface Mount TDFN 8 3.1 x 3.1 x 0.75mm 0.75mm 3.1mm +85 °C
RS-artikelnummer 661-2498
Tillv. art.nrOPA380AID
VarumärkeTexas Instruments
57,28 kr
Each
Enheter
Single 3 V, 5 V - 1 80V/µs - 90MHz Surface Mount SOIC 8 4.9 x 3.91 x 1.58mm 1.58mm 4.9mm +125 °C
RS-artikelnummer 912-6612
Tillv. art.nrAD8015ARZ
VarumärkeAnalog Devices
70,223 kr
Each (In a Tube of 98)
Enheter
Dual, Single 5 V ±2.5V 1 - Differential - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C