LT1413_15 Datasheet, PDF (1/8 Pages) Linear Technology – Single Supply, Dual Precision Op Amp

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 _{280µV Max Offset Voltage}
s _{380µV Max in S8 Package}
s _{0.8nA Max Offset Current}
s _{480µA Max Supply Current per Amplifier}
s _{0.5µV/°C Drift}
s _{1.4 Million Voltage Gain}
s _{950kHz Gain-Bandwidth Product}
s _{0.55µVP-P, 0.1Hz to 10Hz Noise}
APPLICATI S
s _{Single Supply Systems}
s _{Two and Three Op Amp Instrumentation Amplifiers}
s _{Active Filters}
s _{Battery-Powered Systems}
s _{Strain Gauge and Bridge Amplifiers}
DESCRIPTIO
The LT1413 is a low cost, upgraded version of Linear
Technology’s industry standard LT1013 dual, single sup-
ply op amp. The LT1413 is optimized for single 5V appli-
cations, although ±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:
60µV offset voltage, 0.1nA offset current, in excess of
10mA output current at 330µA 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’s
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.
TYPICAL APPLICATI
+90V, –3V Common-Mode Range
Difference Amplifier (A_V = 1)
10M
10M
–
INPUT _10M
+
1M
1M
9V
2_–
8
1
1/2 LT1413
3₊
4
OUTPUT
20mV TO 8V
10M
OUTPUT OFFSET = 1.5mV
(INPUT REFERRED = 125µV)
INPUT RESISTANCE = 11M
BANDWIDTH = 80kHz
(THE 0.1nA TYPICAL OFFSET CURRENT
PERMITS THE USE OF 1MΩ RESISTORS)
LT1413 • TA03
Distribution of Input Offset Voltage
(In Plastic DIP, N8 Package)
30
V_S = 5V, 0V
25 ^{TA = 25°C}
20
15
10
5
0
–300 –200 –100 0
100 200 300
INPUT OFFSET VOLTAGE (µV)
LT1413 • TA01
1