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 the accuracy of a 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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Description Price 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庫存編號 709-5049
製造零件編號AD8015ARZ
TWD377.00
單位
Dual, Single 5 V ±2.5V 1 - Differential - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS庫存編號 121-8287
製造零件編號RCV420KP
TWD447.10
毎管:25 個
單位
- 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庫存編號 311-574
製造零件編號RCV420KP
TWD496.00
單位
- 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庫存編號 922-3274
製造零件編號OPA380AID
TWD168.00
毎管:75 個
單位
- - - - - - - - - - - - - -
RS庫存編號 661-2498
製造零件編號OPA380AID
TWD196.00
單位
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
全新
RS庫存編號 216-8501
製造零件編號ADA4355ABCZ
TWD6,297.60
Each (In a Tray of 5)
單位
Single 3.3 V - 1 - Differential - - CSP_BGA 48 - - - -
全新
RS庫存編號 216-8503
製造零件編號ADA4355ABCZ
TWD6,588.00
單位
Single 3.3 V - 1 - Differential - - CSP_BGA 48 - - - -
全新
RS庫存編號 922-3233
製造零件編號OPA2380AIDGKT
TWD130.90
個 (在毎卷:250)
單位
- - - - - - - - - - - - - -
RS庫存編號 191-3954
製造零件編號MAX40658ETA+
TWD87.80
毎管:100 個
單位
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庫存編號 923-3675
製造零件編號RCV420JP
TWD327.30
毎管:25 個
單位
- 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
全新
RS庫存編號 212-2555
製造零件編號MAX40213AWA+T
TWD78.60
個 (在毎卷:2500)
單位
Single 3.3 V 3.3V 2 - - 300MHz - WLP 8 - - - -
RS庫存編號 660-6626
製造零件編號RCV420JP
TWD380.00
單位
- 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庫存編號 661-2422
製造零件編號OPA380AIDGKT
TWD188.00
單位
Single 3 V, 5 V - 1 - - 90MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS庫存編號 203-5880
製造零件編號MAX40662ATE/VY+
TWD422.20
Each (In a Tray of 490)
單位
Quad 3.6 V - 1 - - - - - - - - - -
RS庫存編號 102-5659
製造零件編號IVC102U
TWD332.70
毎管:50 個
單位
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庫存編號 661-2410
製造零件編號OPA2380AIDGKT
TWD216.00
單位
Single 3 V, 5 V - 2 - - 90MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS庫存編號 203-5881
製造零件編號MAX40662ATE/VY+
TWD446.00
單位
Quad 3.6 V - 1 - - - - - - - - - -
RS庫存編號 162-5447
製造零件編號OPA380AIDGKT
TWD117.70
個 (在毎卷:250)
單位
Single 3 V, 5 V - 1 - - 90MHz Surface Mount MSOP 8 3 x 3 x 0.97mm 0.97mm 3mm +125 °C
RS庫存編號 660-4273
製造零件編號IVC102U
TWD381.00
單位
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庫存編號 191-4941
製造零件編號MAX40658ETA+
TWD123.40
/個 (每包:5個)
單位
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