Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

OPA376AIDCKRG4 Datasheet(PDF) 11 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part # OPA376AIDCKRG4
Description  Precision, Low Noise, Low Quiescent Current, Operational Amplifier
Download  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

OPA376AIDCKRG4 Datasheet(HTML) 11 Page - Burr-Brown (TI)

Back Button OPA376AIDCKRG4 Datasheet HTML 7Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 8Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 9Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 10Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 11Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 12Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 13Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 14Page - Burr-Brown (TI) OPA376AIDCKRG4 Datasheet HTML 15Page - Burr-Brown (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 23 page
background image
www.ti.com
CAPACITIVE LOAD AND STABILITY
ACTIVE FILTERING
C
1
1nF
C
150pF
2
R
3
5.49kW
R
1
5.49kW
R
2
12.4kW
V+
V
OUT
V
IN
OPA376
(V+)/2
DRIVING AN ANALOG-TO-DIGITAL
10
to
W
20W
V+
V
IN
V
OUT
R
S
R
L
C
L
OPA376
OPA376
OPA2376
OPA4376
SBOS406B – JUNE 2007 – REVISED SEPTEMBER 2007
The OPA376 series of amplifiers may be used in
The
OPA376
series
is
well-suited
for
filter
applications where driving a capacitive load is
applications requiring a wide bandwidth, fast slew
required. As with all op amps, there may be specific
rate, low-noise, single-supply operational amplifier.
instances where the OPAx376 can become unstable,
Figure 26 shows a 50kHz, 2nd-order, low-pass filter.
leading to oscillation. The particular op amp circuit
The components have been selected to provide a
configuration, layout, gain and output loading are
maximally-flat Butterworth response. Beyond the
some of the factors to consider when establishing
cutoff
frequency,
roll-off
is
–40dB/dec.
The
whether an amplifier will be stable in operation. An op
Butterworth
response
is
ideal
for
applications
amp in the unity-gain (+1V/V) buffer configuration and
requiring predictable gain characteristics such as the
driving a capacitive load exhibits a greater tendency
anti-aliasing filter used ahead of an analog-to-digital
to be unstable than an amplifier operated at a higher
converter (ADC).
noise gain. The capacitive load, in conjunction with
the op amp output resistance, creates a pole within
the feedback loop that degrades the phase margin.
The degradation of the phase margin increases as
the capacitive loading increases.
The OPAx376 in a unity-gain configuration can
directly drive up to 250pF pure capacitive load.
Increasing the gain enhances the ability of the
amplifier to drive greater capacitive loads (see the
typical characteristic plot, Small-Signal Overshoot vs
Capacitive
Load.
In
unity-gain
configurations,
capacitive load drive can be improved by inserting a
small (10
Ω to 20Ω) resistor, RS, in series with the
output,
as
shown
in
Figure
25.
This
resistor
significantly reduces ringing while maintaining dc
performance for purely capacitive loads. However, if
there is a resistive load in parallel with the capacitive
load, a voltage divider is created, introducing a gain
error at the output and slightly reducing the output
swing. The error introduced is proportional to the ratio
Figure 26. Second-Order Butterworth 50kHz
Low-Pass Filter
RS/RL, and is generally negligible at low output
current levels.
CONVERTER
The low noise and wide gain bandwidth of the
OPA376 family make it an ideal driver for ADCs.
Figure
27
illustrates
the
OPA376
driving
an
ADS8327, 16-bit, 250kSPS converter. The amplifier is
connected as a unity-gain, noninverting buffer.
Figure 25. Improving Capacitive Load Drive
Copyright © 2007, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Link(s): OPA376 OPA2376 OPA4376


Similar Part No. - OPA376AIDCKRG4

ManufacturerPart #DatasheetDescription
logo
Texas Instruments
OPA376AIDCKRG4 TI-OPA376AIDCKRG4 Datasheet
1Mb / 30P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series
OPA376AIDCKRG4 TI1-OPA376AIDCKRG4 Datasheet
1Mb / 42P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier
More results

Similar Description - OPA376AIDCKRG4

ManufacturerPart #DatasheetDescription
logo
Diodes Incorporated
AS2376Q DIODES-AS2376Q Datasheet
1Mb / 13P
   LOW-NOISE, LOW QUIESCENT CURRENT, PRECISION OPERATIONAL AMPLIFIER
Rev. 1 - 2 September 2022
AS2376 DIODES-AS2376 Datasheet
1Mb / 13P
   LOW-NOISE, LOW QUIESCENT CURRENT, PRECISION OPERATIONAL AMPLIFIER
September 2022 Rev. 1 - 2
logo
Texas Instruments
OPA376 TI1-OPA376 Datasheet
1Mb / 42P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier
OPA376-Q1 TI1-OPA376-Q1_16 Datasheet
1Mb / 34P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier
OPA377-Q1 TI1-OPA377-Q1 Datasheet
978Kb / 26P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Automotive Grade Operational Amplifier
OPA376-Q1_016 TI1-OPA376-Q1_016 Datasheet
1Mb / 39P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series
OPA2376AIYZDR TI-OPA2376AIYZDR Datasheet
1Mb / 30P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series
OPA376-Q1 TI-OPA376-Q1_15 Datasheet
448Kb / 20P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim??Series
OPA376-Q1 TI1-OPA376-Q1 Datasheet
547Kb / 19P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim??Series
OPA376 TI-OPA376_15 Datasheet
1Mb / 31P
[Old version datasheet]   Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series
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


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   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