LT1126 Datasheet, PDF (1/8 Pages) Linear Technology – Dual/Quad Decompensated Low Noise, High Speed Precision Op Amps

LT1126/LT1127
Dual/Quad
Decompensated Low Noise,
High Speed Precision Op Amps
FEATURES
s _{100% Tested Low Voltage Noise}
s _{Slew Rate}
s _{Gain-Bandwidth Product}
s _{Offset Voltage, Prime Grade}
Low Grade
s _{High Voltage Gain}
s _{Supply Current Per Amplifier}
s _{Common Mode Rejection}
s _{Power Supply Rejection}
s _{Available in 8-Pin SO Package}
2.7nV/√Hz Typ
4.2nV/√Hz Max
11V/µs Typ
65MHz Typ
70µV Max
100µV Max
5 Million Min
3.1mA Max
112dB Min
116dB Min
APPLICATI S
s _{Two and Three Op Amp Instrumentation Amplifiers}
s _{Low Noise Signal Processing}
s _{Active Filters}
s _{Microvolt Accuracy Threshold Detection}
s _{Strain Gauge Amplifiers}
s _{Direct Coupled Audio Gain Stages}
s _{Tape Head Preamplifiers}
s _{Microphone Preamplifiers}
s _{Accelerometer Amplifiers}
s _{Infrared Detectors}
DESCRIPTIO
The LT1126 dual and LT1127 quad are high performance,
decompensated op amps that offer higher slew rate and
bandwidth than the LT1124 dual and the LT1125 quad
operational amplifiers. The enhanced AC performance is
available without degrading DC specs of the LT1124/
LT1125. Both LT1126/LT1127 are stable in a gain of 10 or
more.
In the design, processing, and testing of the device,
particular attention has been paid to the optimization of the
entire distribution of several key parameters. Slew rate,
gain-bandwidth, and 1kHz noise are 100% tested for each
individual amplifier. Consequently, the specifications of
even the lowest cost grades (the LT1126C and the LT1127C)
have been enhanced.
Power consumption of the dual LT1126 is less than one
half of two OP-37s. Low power and high performance in an
8-pin SO package makes the LT1126 a first choice for
surface mounted systems and where board space is
restricted.
Protected by U.S. patents 4,775,884 and 4,837,496.
Low Noise, Wide Bandwidth Instrumentation Amplifier
– INPUT
+
1/4
620Ω
10k
LT1127
–
6.2k
Voltage Noise vs Frequency
100
V_S = ±15V
T_A = 25°C
30
+ INPUT
–
1/4
LT1127
+
200Ω
6.2k
620Ω
–
1/4
LT1127
+
10k
GAIN = 1000, BANDWIDTH = 480kHz
INPUT REFERRED NOISE = 4.5nV/ √Hz AT 1kHz, 6µV_RMS OVER BANDWIDTH
OUTPUT
LT1126 • TA01
10
3
1
0.1
MAXIMUM
1/f CORNER
2.3Hz
TYPICAL
1.0
10
100
1000
FREQUENCY (Hz)
LT1126 • TA07
1