Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

OPA320AQDBVRQ1 Datasheet(PDF) 18 Page - Texas Instruments

Click here to check the latest version.
Part # OPA320AQDBVRQ1
Description  Precision, 20-MHz, 0.9-pA, Low-Noise, RRIO, CMOS Operational Amplifier
Download  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA320AQDBVRQ1 Datasheet(HTML) 18 Page - Texas Instruments

Back Button OPA320AQDBVRQ1 Datasheet HTML 14Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 15Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 16Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 17Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 18Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 19Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 20Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 21Page - Texas Instruments OPA320AQDBVRQ1 Datasheet HTML 22Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 34 page
background image
OPA320-Q1
V
O
V
(V+)
R
10 M
(FB)
C
< 1pF
(FB)
(1)
l
+V
(BIAS)
(–3 dB)
(FB)
(D)
GBW
ƒ
2
R
C
=
´ p ´
´
(FB)
(FB)
(FB)
(D)
1
GBW
2
R
C
4
R
C
=
´ p ´
´
´ p ´
´
18
OPA320-Q1, OPA2320-Q1
SLOS884A – SEPTEMBER 2014 – REVISED DECEMBER 2016
www.ti.com
Product Folder Links: OPA320-Q1 OPA2320-Q1
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
8.2.1.2 Detailed Design Procedure
To achieve a maximally-flat, second-order Butterworth frequency response, the feedback pole should be set to:
(2)
Use Equation 3 to calculate the bandwidth.
(3)
For even higher transimpedance bandwidth, consider the high-speed CMOS OPA380 (90-MHz GBW), OPA354
(100-MHz GBW), OPA300 (180-MHz GBW), OPA355 (200-MHz GBW), or OPA656 and OPA657 (400-MHz
GBW).
For single-supply applications, the +INx input can be biased with a positive DC voltage to allow the output to
reach true zero when the photodiode is not exposed to any light, and respond without the added delay that
results from coming out of the negative rail; this configuration is shown in Figure 37. This bias voltage also
appears across the photodiode, providing a reverse bias for faster operation.
(1) C(FB) is optional to prevent gain peaking. C(FB) includes the stray capacitance of R(FB).
Figure 37. Single-Supply Transimpedance Amplifier
For additional information, refer to the application bulletin from TI, Compensate Transimpedance Amplifiers
Intuitively (SBOA055).
8.2.1.2.1
Optimizing The Transimpedance Circuit
To achieve the best performance, components should be selected according to the following guidelines:
1. For lowest noise, select R(FB) to create the total required gain. Using a lower value for R(FB) and adding gain
after the transimpedance amplifier generally produces poorer noise performance. The noise produced by
R(FB) increases with the square-root of R(FB), whereas the signal increases linearly. Therefore, signal-to-noise
ratio improves when all the required gain is placed in the transimpedance stage.
2. Minimize photodiode capacitance and stray capacitance at the summing junction (inverting input). This
capacitance causes the voltage noise of the op amp to be amplified (increasing amplification at high
frequency). Using a low-noise voltage source to reverse-bias a photodiode can significantly reduce the
capacitance. Smaller photodiodes have lower capacitance. Use optics to concentrate light on a small
photodiode.
3. Noise increases with increased bandwidth. Limit the circuit bandwidth to only that required. Use a capacitor
across the R(FB) to limit bandwidth, even if not required for stability.


Similar Part No. - OPA320AQDBVRQ1

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
OPA320AIDBVR TI1-OPA320AIDBVR Datasheet
1Mb / 31P
[Old version datasheet]   Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown
NOVEMBER2011
OPA320AIDBVR TI1-OPA320AIDBVR Datasheet
1Mb / 32P
[Old version datasheet]   Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown
logo
National Semiconductor ...
OPA320AIDBVR NSC-OPA320AIDBVR Datasheet
1Mb / 37P
   Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown
logo
Infineon Technologies A...
OPA320AIDBVR INFINEON-OPA320AIDBVR Datasheet
2Mb / 47P
   iMOTION™ Modular Application Design Kit
Revision 1.4 2020-07-16
logo
Texas Instruments
OPA320AIDBVT TI1-OPA320AIDBVT Datasheet
1Mb / 31P
[Old version datasheet]   Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown
NOVEMBER2011
More results

Similar Description - OPA320AQDBVRQ1

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
OPA2320-Q1 TI-OPA2320-Q1_15 Datasheet
1Mb / 31P
[Old version datasheet]   Precision, 20-MHz, 0.9-pA, Low-Noise, RRIO,CMOS Operational Amplifier
OPA2325 TI1-OPA2325 Datasheet
2Mb / 32P
[Old version datasheet]   Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Operational Amplifier
OPA2325 TI1-OPA2325_18 Datasheet
2Mb / 34P
[Old version datasheet]   Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Operational Amplifier
OPA2328 TI-OPA2328 Datasheet
1Mb / 23P
[Old version datasheet]   OPAx328 Precision, 40-MHz, 1.0-pA, Low-Noise, RRIO, CMOS Operational Amplifier With Shutdown
FEBRUARY 2022
OPA2328 TI-OPA2328_V01 Datasheet
1Mb / 27P
[Old version datasheet]   OPAx328 Precision, 40-MHz, 1.0-pA, Low-Noise, RRIO, CMOS Operational Amplifier With Shutdown
REVISED JUNE 2022
OPA328 TI-OPA328 Datasheet
1Mb / 31P
[Old version datasheet]   OPAx328 Precision, 40-MHz, 1.0-pA, Low-Noise, RRIO, CMOS Operational Amplifiers With Shutdown
REVISED NOVEMBER 2022
OPA328 TI-OPA328_V01 Datasheet
1Mb / 32P
[Old version datasheet]   OPAx328 Precision, 40-MHz, 1.0-pA, Low-Noise, RRIO, CMOS Operational Amplifiers With Shutdown
REVISED MAY 2023
OPA325 TI1-OPA325 Datasheet
3Mb / 42P
[Old version datasheet]   Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Operational Amplifiers
OPA2325 TI1-OPA2325_19 Datasheet
2Mb / 38P
[Old version datasheet]   Precision, 10-MHz, low-noise, low-power, RRIO, CMOS operational amplifiers
OPA2325_1905 TI1-OPA2325_1905 Datasheet
2Mb / 39P
[Old version datasheet]   Precision, 10-MHz, Low-Noise, Low-Power, RRIO, CMOS Operational Amplifiers
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com