LT1885_15 Datasheet, PDF (1/12 Pages) Linear Technology – Dual/Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps

FEATURES
s _{Offset Voltage: 50µV Max (LT1884A)}
s _{Input Bias Current: 400pA Max (LT1884A)}
s _{Offset Voltage Drift: 0.8µV/°C Max}
s _{Rail-to-Rail Output Swing}
s _{Operates with Single or Split Supplies}
s _{Open-Loop Voltage Gain: 1 Million Min}
s _{1mA Maximum Supply Current Per Amplifier}
s _{Slew Rate: 1V/µs}
s _{Standard Pinouts}
U
APPLICATIO S
s _{Thermocouple Amplifiers}
s _{Bridge Transducer Conditioners}
s _{Instrumentation Amplifiers}
s _{Battery-Powered Systems}
s _{Photo Current Amplifiers}
s _{Precision Integrators}
s _{Precision Current Sources}
LT1884/LT1885
Dual/Quad Rail-to-Rail
Output, Picoamp Input
Precision Op Amps
DESCRIPTIO
The LT^®1884/LT1885 op amps bring high accuracy input
performance to amplifiers with rail-to-rail output swing
while providing faster response than other precision am-
plifiers. Input offset voltage is trimmed to less than 50µV
and the low drift maintains this accuracy over the operat-
ing temperature range. Input bias currents are an ultralow
400pA maximum.
The amplifiers work on any total power supply voltage
between 2.7V and 36V (fully specified from 5V to ±15V).
Output voltage swings to within 40mV of the negative
supply and 220mV of the positive supply make these
amplifiers good choices for low voltage single supply
operation.
Slew rates of 1V/µs with a supply current of less than 1mA
per amplifier give superior response and settling time
performance in a low power precision amplifier.
The dual LT1884 is available with standard pinouts in
8-pin SO and PDIP packages. The quad LT1885 is also in
the standard pinout 14-pin SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
–IN
Input Fault Protected Instrumentation Amplifier
1M
3₊
10pF
1/4 LT1885
–
10k
10k
GUARD
+IN
R_G/2
10k
+
1/4 LT1885 ^RG/2
10k
–
–
1/4 LT1885
1M
5₊
22pF
TRIM FOR
AC CMRR
–
1/4 LT1885
OUT
+
10k
9.76k
2•10k
GAIN =
R_G
500Ω
TRIM FIRST
FOR DC CMRR
1884 TA01
1