Datasheet

LMC6492, LMC6494
SNOS724D –AUGUST 2000–REVISED MARCH 2013 www.ti.com
DC Electrical Characteristics (continued)
Unless otherwise specified, all limits specified for T
J
= 25°C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
> 1 MΩ. Boldface
limits apply at the temperature extremes
LMC6492AE LMC6492BE
Symbol Parameter Conditions Typ
(1)
LMC6494AE LMC6494BE Units
Limit
(2)
Limit
(2)
I
S
Supply Current LMC6492 1.0 1.75 1.75 mA
V
+
= +5V, V
O
= V
+
/2 2.1 2.1 max
LMC6492 1.3 1.95 1.95 mA
V
+
= +15V, V
O
= V
+
/2 2.3 2.3 max
LMC6494 2.0 3.5 3.5 mA
V
+
= +5V, V
O
= V
+
/2 4.2 4.2 max
LMC6494 2.6 3.9 3.9 mA
V
+
= +15V, V
O
= V
+
/2 4.6 4.6 max
AC Electrical Characteristics
Unless otherwise specified, all limits specified for T
J
= 25°C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
> 1 MΩ. Boldface
limits apply at the temperature extremes
LMC6492AE LMC6492BE
Symbol Parameter Conditions Typ
(1)
LMC6494AE LMC6494BE Units
Limit
(2)
Limit
(2)
SR Slew Rate See
(3)
1.3 0.7 0.7 Vμs min
0.5 0.5
GBW Gain-Bandwidth Product V
+
= 15V 1.5 MHz
φ
m
Phase Margin 50 Deg
G
m
Gain Margin 15 dB
Amp-to-Amp Isolation See
(4)
150 dB
e
n
Input-Referred F = 1 kHz 37
nV/√HZ
Voltage Noise V
CM
= 1V
i
n
Input-Referred F = 1 kHz 0.06
pA/√HZ
Current Noise
T.H.D. Total Harmonic Distortion F = 1 kHz, A
V
= −2 0.01
R
L
= 10 kΩ, V
O
= −4.1 V
PP
F = 10 kHz, A
V
= −2 %
R
L
= 10 kΩ, V
O
= 8.5 V
PP
0.01
V
+
= 10V
(1) Typical Values represent the most likely parametric norm.
(2) All limits are specified by testing or statistical analysis.
(3) V
+
= 15V. Connected as voltage follower with 10V step input. Number specified is the slower of the positive and negative slew rates.
(4) Input referred, V
+
= 15V and R
L
= 100 kΩ connected to 7.5V. Each amp excited in turn with 1 kHz to produce V
O
= 12 V
PP
.
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