LT1126 LINER [Linear Technology], LT1126 Datasheet

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LT1126

Manufacturer Part Number
LT1126
Description
Dual/Quad Decompensated Low Noise, High Speed Precision Op Amps
Manufacturer
LINER [Linear Technology]
Datasheet

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FEATURE
A
PPLICATI
Two and Three Op Amp Instrumentation Amplifiers
Low Noise Signal Processing
Active Filters
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifiers
Direct Coupled Audio Gain Stages
Tape Head Preamplifiers
Microphone Preamplifiers
Accelerometer Amplifiers
Infrared Detectors
– INPUT
+ INPUT
100% Tested Low Voltage Noise
Slew Rate
Gain-Bandwidth Product
Offset Voltage, Prime Grade
High Voltage Gain
Supply Current Per Amplifier
Common Mode Rejection
Power Supply Rejection
Available in 8-Pin SO Package
GAIN = 1000, BANDWIDTH = 480kHz
INPUT REFERRED NOISE = 4.5nV/ Hz AT 1kHz, 6 V
Low Noise, Wide Bandwidth Instrumentation Amplifier
+
+
LT1127
LT1127
S
1/4
1/4
O
Low Grade
U
S
6.2k
6.2k
200
620
620
RMS
4.2nV/ Hz Max
2.7nV/ Hz Typ
OVER BANDWIDTH
5 Million Min
11V/ s Typ
100 V Max
3.1mA Max
65MHz Typ
112dB Min
116dB Min
70 V Max
10k
+
LT1127
High Speed Precision Op Amps
1/4
10k
Decompensated Low Noise,
D
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.
ESCRIPTIO
LT1126 • TA01
OUTPUT
U
100
30
10
1
3
0.1
Voltage Noise vs Frequency
1.0
1/f CORNER
Dual/Quad
LT1126/LT1127
2.3Hz
FREQUENCY (Hz)
10
V = 15V
T = 25°C
A
MAXIMUM
TYPICAL
S
100
LT1126 • TA07
1000
1

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LT1126 Summary of contents

Page 1

... LT1124 dual and the LT1125 quad 65MHz Typ operational amplifiers. The enhanced AC performance Max available without degrading DC specs of the LT1124/ 100 V Max LT1125. Both LT1126/LT1127 are stable in a gain Million Min more. 3.1mA Max In the design, processing, and testing of the device, 112dB Min ...

Page 2

... ORDER PART TOP VIEW NUMBER + OUT B LT1126AMJ8 A 6 –IN B LT1126MJ8 B + LT1126CJ8 N8 PACKAGE LT1126ACN8 8-LEAD PLASTIC DIP LT1126CN8 LT1126 • POI02 TOP VIEW LT1127AMJ 14 OUT D LT1127MJ 13 – LT1127CJ A 12 +IN D LT1127ACN – LT1127CN 10 + – ...

Page 3

... Applications Information section of the LT1007 or LT1028 datasheets. Note 8: This parameter is guaranteed but not tested. Note 9: The LT1126 and LT1127 are not tested and are not quality assurance sampled at –40 C and These specifications are guaranteed by design, correlation and/or inference from – and/or 125 C tests ...

Page 4

... I Supply Current Per Amplifier TYPICAL PERFOR A The typical behavior of many LT1126/LT1127 parameters is identical to the LT1124/LT1125. Please refer to the LT1124/LT1125 data sheet for the following performance characteristics: 0.1Hz to 10Hz Voltage Noise 0.01Hz to 1Hz Voltage Noise Current Noise vs Frequency Input Bias or Offset Current vs Temperature ...

Page 5

... A = +100 V 0.001 A = +10 V 0.0001 20 100 1k FREQUENCY (Hz) LT1126 • TPC08 LT1126/LT1127 Large-Signal Transient Response 10V 0V – 10V A LT1126 • TPC02 = –10V VCL V = 15V S Supply Current vs Supply Voltage 3 125°C 25°C –55° 10M SUPPLY VOLTAGE (V) Intermodulation Distortion (CCIF Method)* vs Frequency ...

Page 6

... LT1126 + INPUT THE HIGH GAIN AND WIDE BANDWIDTH OF THE LT1126/LT1127 IS USEFUL IN LOW FREQUENCY HIGH CLOSED LOOP GAIN AMPLIFIER APPLICATIONS. A TYPICAL PRECISION OP AMP MAY HAVE AN OPEN LOOP GAIN OF ONE MILLION WITH 500kHz BANDWIDTH. AS THE GAIN ERROR PLOT SHOWS, THIS DEVICE IS CAPABLE OF 0.1% AMPLIFYING ACCURACY UP TO 0.3Hz ONLY. EVEN INSTRUMENTATION RANGE SIGNALS CAN VARY AT A FASTER RATE. THE LT1126/LT1127 “ ...

Page 7

... LT1127 + 1.1k 2.4k – 1/4 LT1127 + 1.1k 2.4k –3dB BANDWIDTH = 910 kHz GAIN BANDWIDTH PRODUCT = 91.0MHz – 1/4 WIDEBAND NOISE = LT1127 + RMS NOISE DC TO FULL BANDWIDTH = 21.2 V REFERRED TO INPUT (1/2 LT1126, 1/4 LT1127) 200pF 21k 21k 3.6k Q17 Q19 Q2A Q1B Q2B + V Q22 Q11 Q12 Q15 200 A 100 A 200 6k LT1126/LT1127 500 – ...

Page 8

... LT1126/LT1127 PACKAGE DESCRIPTIO 0.290 – 0.320 J8 Package (7.366 – 8.128) 8-Lead Ceramic DIP T J MAX JA 0.008 – 0.018 160 C 100 C/W (0.203 – 0.460) 0.385 ± 0.025 (9.779 ± 0.635) 0.300 – 0.320 N8 Package (7.620 – 8.128) 8-Lead Plastic DIP T 0.009 - 0.015 ...

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