Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

OPA688P Datasheet(PDF) 11 Page - Texas Instruments

Part # OPA688P
Description  Unity Gain Stable, Wideband VOLTAGE LIMITING AMPLIFIER
PDF  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA688P Datasheet(HTML) 11 Page - Texas Instruments

Back Button OPA688P Datasheet HTML 7Page - Texas Instruments OPA688P Datasheet HTML 8Page - Texas Instruments OPA688P Datasheet HTML 9Page - Texas Instruments OPA688P Datasheet HTML 10Page - Texas Instruments OPA688P Datasheet HTML 11Page - Texas Instruments OPA688P Datasheet HTML 12Page - Texas Instruments OPA688P Datasheet HTML 13Page - Texas Instruments OPA688P Datasheet HTML 14Page - Texas Instruments OPA688P Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 18 page
background image
OPA688
11
SBOS082A
TYPICAL APPLICATIONS
DUAL-SUPPLY, NON-INVERTING AMPLIFIER
Figure 1 shows a non-inverting gain amplifier for dual-
supply operation. This circuit was used for AC characteriza-
tion of the OPA688, with a 50
Ω source, which it matches,
and a 500
Ω load. The power-supply bypass capacitors are
shown explicitly in Figures 1 and 2, but will be assumed in
the other figures. The limiter voltages (VH and VL) and their
bias currents (IVH and IVL) have the polarities shown.
SINGLE-SUPPLY, NON-INVERTING AMPLIFIER
Figure 2 shows an AC-coupled, non-inverting gain amplifier
for single +5V supply operation. This circuit was used for
AC characterization of the OPA688, with a 50
Ω source,
which it matches, and a 500
Ω load. The power-supply
bypass capacitors are shown explicitly in Figures 1 and 2,
but will be assumed in the other figures. The limiter voltages
(VH and VL) and their bias currents (IVH and IVL) have the
polarities shown. Notice that the single-supply circuit can
use three resistors to set VH and VL, where the dual-supply
circuit usually uses four to reference the limit voltages to
ground.
LIMITED OUTPUT, ADC INPUT DRIVER
Figure 3 shows a simple ADC (Analog-to-Digital Con-
verter) driver that operates on a single supply, and gives
excellent distortion performance. The limit voltages track
the input range of the converter, completely protecting
against input overdrive.
FIGURE 1. DC-Coupled, Dual Supply Amplifier.
FIGURE 2. AC-Coupled, Single Supply Amplifier.
FIGURE 3. Single Supply, Limiting ADC Input Driver.
OPA688
49.9
Ω
6
I
VH
V
O
V
IN
I
VL
–V
S = –5V
3
2
4
7
8
5
R
F
402
Ω
R
G
402
Ω
500
Ω
0.1
µF
0.1
µF
0.1
µF
174
Ω
3.01k
Ω 1.91kΩ
3.01k
Ω 1.91kΩ
0.1
µF
V
H = +2V
V
L = –2V
+
2.2
µF
+
2.2
µF
+V
S = +5V
OPA688
57.6
Ω
6
I
VH
V
H = 3.7V
V
O
V
L = 1.3V
V
IN
I
VL
806
Ω
3
2
4
7
8
5
806
Ω
523
Ω
976
Ω
523
Ω
R
G
402
Ω
R
F
402
Ω
500
Ω
0.1
µF
0.1
µF
0.1
µF
+
2.2
µF
0.1
µF
V
S = +5V
0.1
µF
0.1
µF
OPA688
V
S = +5V
4
2
3
7
5
8
6
V
S = +5V
+3.5V
+1.5V
V
IN
REFB
REFT
IN
0.1
µF
100pF
V
H = +3.6V
V
L = +1.4V
0.1
µF
0.1
µF
0.1
µF
402
Ω
24.9
Ω
562
Ω
102
Ω
402
Ω
715
Ω
715
Ω
102
Ω
562
Ω
ADS822
10-Bit
40MSPS
10-Bit
Data
V
S = +5V
INT/EXT
RSEL
+V
S
GND



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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