LT1880_15 Datasheet, PDF (1/12 Pages) Linear Technology – SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp

FEATURES
n _{Offset Voltage: 150μV Max}
n _{Input Bias Current: 900pA Max}
n _{Offset Voltage Drift: 1.2μV/°C Max}
n _{Rail-to-Rail Output Swing}
n _{Operates with Single or Split Supplies}
n _{Open-Loop Voltage Gain: 1 Million Min}
n _{1.2mA Supply Current}
n _{Slew Rate: 0.4V/μs}
n _{Gain Bandwidth: 1.1MHz}
n _{Low Noise: 13nV/√Hz at 1kHz}
n _{Low Profile (1mm) ThinSOT}^™ _Package
APPLICATIONS
n _{Thermocouple Amplifiers}
n _{Bridge Transducer Conditioners}
n _{Instrumentation Amplifiers}
n _{Battery-Powered Systems}
n _{Photocurrent Amplifiers}
TYPICAL APPLICATION
Precision Photodiode Amplifier
C1
39pF
R1
100k, 1%
V_S+
V_L
–
S1
LT1880
OUT
+
V_OUT = 0.1V/μA
V_S–
1880 TA01
320μV OUTPUT OFFSET, WORST CASE OVER 0°C TO 70°C
60kHz BANDWIDTH
5.8μs RISE TIME, 10% TO 90%, 100mV OUTPUT STEP
52μV_RMS OUTPUT NOISE, MEASURED ON A 100kHz BW
V_S = ±1.5V TO ±18V
S1: SIEMENS INFINEON BPW21 PHOTODIODE (~580pF)
LT1880
SOT-23, Rail-to-Rail Output,
Picoamp Input Current
Precision Op Amp
DESCRIPTION
The LT^®1880 op amp brings high accuracy input perfor-
mance and rail-to-rail output swing to the SOT-23 package.
Input offset voltage is trimmed to less than 150μV and
the low drift maintains this accuracy over the operating
temperature range. Input bias current is an ultralow 900pA
maximum.
The amplifier works on any total power supply voltage
between 2.7V and 36V (fully specified from 5V to ±15V).
Output voltage swings to within 55mV of the negative
supply and 250mV of the positive supply, which makes
the amplifier a good choice for low voltage single supply
operation.
Slew rates of 0.4V/μs with a supply current of 1.2mA give
superior response and settling time performance in a low
power precision amplifier.
The LT1880 is available in a 5-lead SOT-23 package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Distribution of Input Offset Voltage
35
30
25
20
15
10
5
0
–140 –100 –60 –20 20 60 100 140
INPUT OFFSET VOLTAGE (μV)
1880 TA01b
1880fa
1