1
LTC1152
Rail-to-Rail Input
Rail-to-Rail Output
Zero-Drift Op Amp
S
F
EA
T
U
RE
■
Input Common-Mode Range Includes Both Rails
■
Output Swings Rail to Rail
■
Output Will Drive 1k
Ω
Load
■
No External Components Required
■
Input Offset Voltage: 10µV Max
■
Input Offset Drift: 100nV/°C Max
■
Minimum CMRR: 115dB
■
Supply Current: 3.0mA Max
■
Shutdown Pin Drops Supply Current to 5µA Max
■
Output Configurable to Drive Any Capacitive Load
■
Operates from 2.7V to 14V Total Supply Voltage
U
S
A
O
PP
L
IC
AT
I
■
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
D
U
ESCRIPTIO
The LTC
®
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’s other zero-drift amplifiers. Typical offset voltage
is 1µV and typical offset drift is 10nV/°C. CMRR and PSRR
are 130dB and 120dB and open-loop gain is 130dB. Input
noise voltage is 2µV
P-P
from 0.1Hz to 10Hz. Gain-band-
width product is 0.7MHz and slew rate is 0.5V/µs, all with
supply current of 3.0mA max over temperature. The
LTC1152 also includes a shutdown feature which drops
supply current to 1µA 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.
5V
0V
1152 TA02
Input and Output Waveforms
Rail-to-Rail Buffer
V
OUT
2V/DIV
0V
5V
V
IN
2V/DIV
U
A
O
PP
L
IC
AT
ITY
P
I
CA
L
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is trademark of Linear Technology Corporation.
–
+
OUT
7
6
4
3
2
LTC1152
5V
IN
1152 TA01
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