lm7121imx National Semiconductor Corporation, lm7121imx Datasheet - Page 6

• Manufacturer Part Number: lm7121imx
• Description: 235 Mhz Tiny Low Power Voltage Feedback Amplifier
• Manufacturer: National Semiconductor Corporation

www.national.com
SR
GBW
f (−3 dB)
t
T.H.D.
r
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Human body model, 1.5 k
Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150˚C.
Note 4: The maximum power dissipation is a function of T
(T
Note 5: Typical Values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or statistical analysis.
Note 7: Differential input voltage is measured at V
Note 8: Slew rate is the average of the rising and fallng slew rates.
Note 9: Unity gain operation for
single supply operation, feedback is a direct short from the output to the inverting input.
Note 10: A
Unless otherwise specified, all limits guaranteed for T
face limits apply at the temperature extremes.
m
, t
+5V AC Electrical Characteristics
Typical Performance Characteristics
Supply Current vs
Supply Voltage
Symbol
J(max)
f
–T
A
V
)/
= +2 operation with 2 k
JA
. All numbers apply for packages soldered directly into a PC board.
Slew Rate
(Note 8)
Unity Gain-Bandwidth
Phase Margin
Bandwidth
(Notes 9, 10)
Rise and Fall Time
(Note 10)
Total Harmonic Distortion
±
5V and
Parameter
in series with 100 pF.
DS012348-66
resistors and 2 pF capacitor from summing node to ground.
±
15V supplies is with a feedback network of 510
S
=
±
Supply Current vs
Temperature
15V.
J(max)
,
A
V
R
R
R
R
A
V
0.6 V
A
0.6 V
A
J
JA
V
+
L
L
L
L
V
O
V
V
/2, V
, and T
= 25˚C, V
= +2, R
= 1k, to V
= 1k to V
= 100
= 100
= +2, R
= +2, f = 1 MHz
= +2, f = 5 MHz
= 0.2 V
PP
PP
O
Output, R
Output, R
A
= 1.8 V
T
. The maximum allowable power dissipation at any ambient temperature is P
Conditions
6
A
L
L
PP
to V
to V
= 25˚C, R
+
+
= 1 k
= 100 ,
+
/2
/2
= +5V, V
+
+
PP
/2, A
/2, A
L
L
= 150 ,
= 150 ,
and 3 pF in parallel (see the Application Information section). For +5V
to
V
V
DS012348-67
L
= +1
= +2
−
= 1 M . unless otherwise specified
= 0V, V
CM
Input Offset Voltage
vs Temperature
= V
(Note 5)
0.067
0.33
Typ
145
200
80
70
45
O
8
= V
+
/2 and R
LM7121I
(Note 6)
Limit
L
>
1 M . Bold-
DS012348-68
Units
V/µs
MHz
MHz
Deg
ns
%
D
=