Datasheet

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2) 2000V
Differential Input Voltage (Note 7)
±
2V
Voltage at Input/Output Pin (V
+
)−1.4V, (V
−
)+1.4V
Supply Voltage (V
+
–V
−
) 36V
Output Short Circuit to Ground
(Note 3) Continuous
Lead Temperature 260˚C
(soldering, 10 sec) 260˚C
Storage Temperature Range −65˚C to +150˚C
Junction Temperature (Note 4) 150˚C
Operating Ratings (Note 1)
Supply Voltage: SO-8 4.5V ≤ V
S
≤ 33V
SOT23-5 4.5V ≤ V
S
≤ 11V
Junction Temperature Range −40˚C ≤ T
J
≤ +85˚C
Thermal Resistance (θ
JA
)
M Package, 8-pin Surface Mount 165˚C/W
SOT23-5 Package 325˚C/W
±
15V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
=
25˚C, V
+
=
+15V, V
−
=
−15V, V
CM
=
V
O
=
0V and R
L
>
1MΩ.
Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Typ
(Note 5)
LM7121I Units
Limit
(Note 6)
V
OS
Input Offset Voltage 0.9 8 mV
15 max
I
B
Input Bias Current 5.2 9.5 µA
12 max
I
OS
Input Offset Current 0.04 4.3 µA
7 max
R
IN
Input Resistance Common Mode 10 MΩ
Differential Mode 3.4 MΩ
C
IN
Input Capacitance Common Mode 2.3 pF
CMRR Common Mode −10V ≤ V
CM
≤ 10V 93 73 dB
Rejection Ratio 70 min
+PSRR Positive Power Supply 10V ≤ V
+
≤ 15V 86 70 dB
Rejection Ratio 68 min
−PSRR Negative Power Supply −15V ≤ V
−
≤ −10V 81 68 dB
Rejection Ratio 65 min
V
CM
Input Common-Mode CMRR ≥ 70 dB 13 11 V
Voltage Range min
−13 −11 V
max
A
V
Large Signal R
L
=
2kΩ,V
O
=
20 V
PP
72 65 dB
Voltage Gain 57 min
V
O
Output Swing R
L
=
2kΩ 13.4 11.1 V
10.8 min
−13.4 −11.2 V
−11.0 max
R
L
=
150Ω 10.2 7.75 V
7.0 min
−7.0 −5.0 V
−4.8 max
I
SC
Output Short Circuit Sourcing 71 54 mA
Current 44 min
Sinking 52 39 mA
34 min
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