鈩?/div>
Load
No External Components Required
Input Offset Voltage: 10碌V Max
Input Offset Drift: 100nV/擄C Max
Minimum CMRR: 115dB
Supply Current: 3.0mA Max
Shutdown Pin Drops Supply Current to 5碌A Max
Output Configurable to Drive Any Capacitive Load
Operates from 2.7V to 14V Total Supply Voltage
The LTC
廬
1152 is a high performance, low power zero-drift
op amp featuring an input stage that common modes to
both power supply rails and an output stage that provides
rail-to-rail swing, even into heavy loads. The wide input
common-mode range is achieved with a high frequency
on-board charge pump. This technique eliminates the
crossover distortion and limited CMRR imposed by com-
peting technologies. The LTC1152 is a C-Load
TM
of amp,
enabling it to drive any capacitive load.
The LTC1152 shares the excellent DC performance specs
of LTC鈥檚 other zero-drift amplifiers. Typical offset voltage
is 1碌V and typical offset drift is 10nV/擄C. CMRR and PSRR
are 130dB and 120dB and open-loop gain is 130dB. Input
noise voltage is 2碌V
P-P
from 0.1Hz to 10Hz. Gain-band-
width product is 0.7MHz and slew rate is 0.5V/碌s, all with
supply current of 3.0mA max over temperature. The
LTC1152 also includes a shutdown feature which drops
supply current to 1碌A and puts the output stage in a high
impedance state.
The LTC1152 is available in 8-pin PDIP and 8-pin SO
packages and uses the standard op amp pinout, allowing
it to be a plug-in replacement for many standard op amps.
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is trademark of Linear Technology Corporation.
APPLICATI
s
s
s
s
s
s
S
Rail-to-Rail Amplifiers and Buffers
High Resolution Data Acquisition Systems
Supply Current Sensing in Either Rail
Low Supply Voltage Transducer Amplifiers
High Accuracy Instrumentation
Single Negative Supply Operation
TYPICAL APPLICATI
Input and Output Waveforms
Rail-to-Rail Buffer
5V
5V
IN
+
3
鈥?/div>
2
7
6
OUT
V
OUT
2V/DIV
0V
5V
V
IN
2V/DIV
1152 TA01
LTC1152
4
0V
1152 TA02
U
UO
UO
1
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