Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

LM13700N Arkusz danych(PDF) 8 Page - Texas Instruments

Numer części LM13700N
Szczegółowy opis  LM13700 Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
Download  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI1 - Texas Instruments

LM13700N Arkusz danych(HTML) 8 Page - Texas Instruments

Back Button LM13700N Datasheet HTML 4Page - Texas Instruments LM13700N Datasheet HTML 5Page - Texas Instruments LM13700N Datasheet HTML 6Page - Texas Instruments LM13700N Datasheet HTML 7Page - Texas Instruments LM13700N Datasheet HTML 8Page - Texas Instruments LM13700N Datasheet HTML 9Page - Texas Instruments LM13700N Datasheet HTML 10Page - Texas Instruments LM13700N Datasheet HTML 11Page - Texas Instruments LM13700N Datasheet HTML 12Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 32 page
background image
LM13700
SNOSBW2E – NOVEMBER 1999 – REVISED MARCH 2013
www.ti.com
Typical Performance Characteristics (continued)
Figure 20. Leakage Current Test Circuit
Figure 21. Differential Input Current Test Circuit
Circuit Description
The differential transistor pair Q4 and Q5 form a transconductance stage in that the ratio of their collector currents
is defined by the differential input voltage according to the transfer function:
(1)
where VIN is the differential input voltage, kT/q is approximately 26 mV at 25°C and I5 and I4 are the collector
currents of transistors Q5 and Q4 respectively. With the exception of Q12 and Q13, all transistors and diodes are
identical in size. Transistors Q1 and Q2 with Diode D1 form a current mirror which forces the sum of currents I4
and I5 to equal IABC:
I4 + I5 = IABC
(2)
where IABC is the amplifier bias current applied to the gain pin.
For small differential input voltages the ratio of I4 and I5 approaches unity and the Taylor series of the In function
can be approximated as:
(3)
(4)
Collector currents I4 and I5 are not very useful by themselves and it is necessary to subtract one current from the
other. The remaining transistors and diodes form three current mirrors that produce an output current equal to I5
minus I4 thus:
(5)
The term in brackets is then the transconductance of the amplifier and is proportional to IABC.
Linearizing Diodes
For differential voltages greater than a few millivolts, Equation 3 becomes less valid and the transconductance
becomes increasingly nonlinear. Figure 22 demonstrates how the internal diodes can linearize the transfer
function of the amplifier. For convenience assume the diodes are biased with current sources and the input
signal is in the form of current IS. Since the sum of I4 and I5 is IABC and the difference is IOUT, currents I4 and I5
can be written as follows:
(6)
Since the diodes and the input transistors have identical geometries and are subject to similar voltages and
temperatures, the following is true:
8
Submit Documentation Feedback
Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM13700


Podobny numer części - LM13700N

ProducentNumer częściArkusz danychSzczegółowy opis
logo
National Semiconductor ...
LM13700N NSC-LM13700N Datasheet
633Kb / 24P
   Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
logo
Texas Instruments
LM13700N TI1-LM13700N Datasheet
2Mb / 37P
[Old version datasheet]   Dual Operational Transconductance Amplifiers
More results

Podobny opis - LM13700N

ProducentNumer częściArkusz danychSzczegółowy opis
logo
National Semiconductor ...
LM13600 NSC-LM13600 Datasheet
634Kb / 24P
   Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
LM13700 NSC-LM13700 Datasheet
633Kb / 24P
   Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers
logo
JSC ALFA.
AS13704 ALFA-AS13704 Datasheet
630Kb / 4P
   Quad Operational Transconductance Amplifiers (OTA) with linearizing diodes
logo
Texas Instruments
LM13700 TI1-LM13700_16 Datasheet
2Mb / 37P
[Old version datasheet]   Dual Operational Transconductance Amplifiers
logo
ON Semiconductor
NE5517 ONSEMI-NE5517 Datasheet
187Kb / 14P
   Dual Operational Transconductance Amplifier
April, 2006 ??Rev. 3
logo
Texas Instruments
LM112 TI-LM112 Datasheet
451Kb / 3P
[Old version datasheet]   OPERATIONAL AMPLIFIERS/BUFFERS
logo
NXP Semiconductors
NE5517 PHILIPS-NE5517 Datasheet
298Kb / 13P
   Dual operational transconductance amplifier
2002 Dec 06
logo
ON Semiconductor
NE5517 ONSEMI-NE5517_13 Datasheet
183Kb / 15P
   Dual Operational Transconductance Amplifier
June, 2013 ??Rev. 4
logo
NXP Semiconductors
NE5517 PHILIPS-NE5517 Datasheet
193Kb / 18P
   Dual operational transconductance amplifier
2002 Dec 06
logo
New Japan Radio
NJM13600 NJRC-NJM13600 Datasheet
294Kb / 7P
   DUAL OPERATIONAL TRANSCONDUCTANCE AMPLIFIER???
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


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
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