LT1413
Single Supply, Dual
Precision Op Amp
FEATURES
Single Supply Operation:
s
Input Goes Below Ground
s
Output Swings to Ground Sinking Current
s
No Pull-Down Resistors Needed
s
Phase Reversal Protection
At 5V, 0V Low Cost Grade Specifications:
s
280碌V Max Offset Voltage
s
380碌V Max in S8 Package
s
0.8nA Max Offset Current
s
480碌A Max Supply Current per Amplifier
s
0.5碌V/掳C Drift
s
1.4 Million Voltage Gain
s
950kHz Gain-Bandwidth Product
s
0.55碌V
P-P
, 0.1Hz to 10Hz Noise
DESCRIPTIO
The LT1413 is a low cost, upgraded version of Linear
Technology鈥檚 industry standard LT1013 dual, single sup-
ply op amp. The LT1413 is optimized for single 5V appli-
cations, although
卤15V
specifications are also provided
for completeness.
In the design of the LT1413, particular emphasis has been
placed on low cost plastic and SO-8 package performance:
60碌V offset voltage, 0.1nA offset current, in excess of
10mA output current at 330碌A supply current and 140dB
channel separation are some of the specifications achieved.
Other dual, single supply amplifiers are available to
complement the LT1413 family: the micropower LT1078鈥檚
supply current is 10 times lower with a 4.5 fold speed
performance degradation compared to the LT1413. Con-
versely, the LT1211, LT1213 and LT1215 duals have 4 to
14 times higher supply current, but also 13 to 50 times
higher speed.
Protected by U.S. Patent 4,775,884.
APPLICATI
s
s
s
s
s
S
Single Supply Systems
Two and Three Op Amp Instrumentation Amplifiers
Active Filters
Battery-Powered Systems
Strain Gauge and Bridge Amplifiers
TYPICAL APPLICATI
+90V, 鈥?V Common-Mode Range
Difference Amplifier (A
V
= 1)
30
10M
9V
25
Distribution of Input Offset Voltage
(In Plastic DIP, N8 Package)
V
S
= 5V, 0V
T
A
= 25掳C
鈥?/div>
INPUT
鈥?/div>
+
8
1
OUTPUT
20mV TO 8V
PERCENT OF UNITS
10M
2
1M
1M
20
15
10
5
+
10M
1/2 LT1413
3
4
10M
OUTPUT OFFSET = 1.5mV
(INPUT REFERRED = 125碌V)
INPUT RESISTANCE = 11M
BANDWIDTH = 80kHz
(THE 0.1nA TYPICAL OFFSET CURRENT
PERMITS THE USE OF 1M鈩?RESISTORS)
LT1413 鈥?TA03
0
鈥?00 鈥?00 鈥?00
0
100
200
INPUT OFFSET VOLTAGE (碌V)
U
300
LT1413 鈥?TA01
UO
UO
1
1
2
3
4
5
6
7
8
