LTC1049_09 Datasheet, PDF (1/12 Pages) Linear Technology – Low Power Zero-Drift Operational Amplifier with Internal Capacitors

FEATURES
■ _{Low Supply Current: 200µA}
■ _{No External Components Required}
■ _{Maximum Offset Voltage: 10µV}
■ _{Maximum Offset Voltage Drift: 0.1µV/°C}
■ _{Single Supply Operation: 4.75V to 16V}
■ _{Input Common Mode Range Includes Ground}
■ _{Output Swings to Ground}
■ _{Typical Overload Recovery Time: 6ms}
■ _{Available in 8-Pin SO and PDIP Packages}
U
APPLICATIO S
■ _{4mA to 20mA Current Loops}
■ _{Thermocouple Amplifiers}
■ _{Electronic Scales}
■ _{Medical Instrumentation}
■ _{Strain Gauge Amplifiers}
■ _{High Resolution Data Acquisition}
LTC1049
Low Power Zero-Drift
Operational Amplifier
with Internal Capacitors
DESCRIPTIO
The LTC^®1049 is a high performance, low power zero-drift
operational amplifier. The two sample-and-hold capacitors
usually required externally by other chopper stabilized
amplifiers are integrated on the chip. Further, the LTC1049
offers superior DC and AC performance with a nominal
supply current of only 200µA.
The LTC1049 has a typical offset voltage of 2µV, drift of
0.02µV/°C, 0.1Hz to 10Hz input noise voltage of 3µV_P-P
and typical voltage gain of 160dB. The slew rate is 0.8V/µs
with a gain bandwidth product of 0.8MHz.
Overload recovery time from a saturation condition is
6ms, a significant improvement over chopper amplifiers
using external capacitors.
The LTC1049 is available in a standard 8-pin plastic dual
in line, as well as an 8-pin SO package. The LTC1049 can
be a plug-in replacement for most standard op amps with
improved DC performance and substantial power savings.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
Single Supply Thermocouple Amplifier
V_IN = 5V
0.068µF
246k
1k
2
K
7
–
+
LT^®1025A
GND R^–
45
TYPE K
2_– ⁷
LTC1049
6
V_OUT = 0V TO 4V
3
+
FOR 0°C TO 400°C
4
0.1µF
SUPPLY CURRENT = 280µA
LTC1049 • TA01
1049fb
1