OP-01_15 Datasheet, PDF (5/6 Pages) Analog Devices – INVERTING HIGH SPEED OPERATIONAL AMPLIFIER

TYPICAL PERFORMANCE CHARACTERISTICS
OP-O1 I
LARGE-SIGNAL
PULSE RESPONSE
SMALL-SIGNAL
PULSE RESPONSE
0;
0;
is
is
;;
;;
E
0
.:.:.>.
::=:>
0
;::
.
:":->
:;;
TIME (500ms!DIVI
Vs = f15V, AV = ~1, RL = 2kH, CL = 50pF
O_UNITY-GAIN
BANDWIDTH
B _{va SOURCE RESISTANCE}
S I I! I!IIII
I III
1
1, RS = 2.5krJ
~ ^{O 2. RS = 5.0krJ}
3. RS = 10krJ
4. RS = 33krJ
~ ^{L " 5. RS = 100krJ}
E _"^z
;;:
0 _........
~ -2 ^{- H5}
T ^<_.....J^t_.
E ^{0> -4}
.......
3
\
1
2{-
\
OPEN-LOOP GAIN
vs FREQUENCY
80
TIME (100ms!DIV)
VS=:':15V,AV=-I,RL
=2kS!,CL=50pF
LARGE-SIGNAL OUTPUT
SWING va FREQUENCY
12
u_..;_..
<5 10
~
UJ
<_..0...Jt_. a
>6
::>
:=
::>
'⁰" ⁴
1. INVERTING
AV =~1
21 2. NON.
INVERTING
AV;> 50
3. NON.
INVERTING
AV = 10
4. NON.
INVERTING
AV = 1
(VOLTAGE
FOLLOWER)
<t
\
~2
-6
0.01
0,10
1.00
10.0
0.10 1.00 10.0 100 1000 10,000
0
0.001
0.01
0.10
1.00
10.0
FREQUENCY (MHz)
FREQUENCY (kHz)
FREQUENCY (MHz)
APPLICATIONS INFORMATION
The OP-O1incorporates an internal feed-forward compensa-
tion network to provide fast slewing and settling times in all
inverting and moderate-to-high-gain noninverting applica-
tions. Unity-gain bandwidth is a function of the total equiva-
lent source resistance seen by the inverting terminal. Proper
choice of this resistance will allow the user to maxmize
bandwidth while assuring proper stability. The equivalent-
inverting-terminal-resistance is defined as RINIIRF, and it
must be greater than 3.3k!1 to assure stability in all closed-
loop gain configurations including unity gain. Should
RINIIRFS 3.3k!1, a resistor (Rs) may be placed between the
inverting input and the sum node to provide the required
resistance. (See Fast Inverting Amplifier Diagram.) Lower
values of total equivalent resistance may be used to improve
bandwidth in higher closed-loop gain configurations, as
indicated by the Open-Loop Gain vs. Frequency plot.
FAST INVERTING AMPLIFIER
RIN
RF
VIN
RS
2
-3^REQ
Rp
REQ= RS + RIN II RF
FORAV=~I.REQ;>3.3krJ
Rp = REO
----