LT1125CN Linear Technology, LT1125CN Datasheet

IC OP-AMP LOW NOISE QUAD 14-DIP

LT1125CN

Manufacturer Part Number
LT1125CN
Description
IC OP-AMP LOW NOISE QUAD 14-DIP
Manufacturer
Linear Technology
Datasheet

Specifications of LT1125CN

Amplifier Type
General Purpose
Number Of Circuits
4
Slew Rate
4.5 V/µs
Gain Bandwidth Product
12.5MHz
Current - Input Bias
7nA
Voltage - Input Offset
30µV
Current - Supply
2.3mA
Voltage - Supply, Single/dual (±)
±4 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1125CN
Manufacturer:
SEMTECH
Quantity:
1 400
Part Number:
LT1125CN#PBF
Manufacturer:
LT
Quantity:
649
Part Number:
LT1125CN#PBF
Manufacturer:
LT
Quantity:
1 000
Part Number:
LT1125CN#PBF
Manufacturer:
LT
Quantity:
20 000
APPLICATIONS
TYPICAL APPLICATION
INPUT
FEATURES
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
100% Tested Low Voltage Noise:
Slew Rate: 4.5V/μs Typ
Gain-Bandwidth Product: 12.5MHz Typ
Offset Voltage,
Prime Grade: 70μV Max
Low Grade: 100μV Max
High Voltage Gain: 5 Million Min
Supply Current Per Amplifi er: 2.75mA Max
Common Mode Rejection: 112dB Min
Power Supply Rejection: 116dB Min
Available in 8-Pin SO Packages
Two and Three Op Amp Instrumentation Amplifi ers
Low Noise Signal Processing
Active Filters
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifi ers
Direct Coupled Audio Gain Stages
Tape Head Preamplifi ers
Infrared Detectors
+
2.7nV/√Hz Typ
4.2nV/√Hz Max
GUARD
GUARD
Instrumentation Amplifi er with Shield Driver
13
12
3
2
8
+
+
LT1125
LT1125
1/4
1/4
LT1125
1/4
+
14
1
10
9
R
3.4k
R
100Ω
R
100Ω
R
3.4k
F
G
G
F
1k
1k
SMALL-SIGNAL BW
5
6
+
LT1125
1/4
POWER BW
–15V
15V
30k
11
4
NOISE
GAIN
V
OS
High Speed Precision Op Amps
= 30 (1 + R
= 170kHz
= 400kHz
= 3.8μV/ Hz AT OUTPUT
= 35μV
7
30k
OUTPUT
F
/R
G
) ≈ 1000
1124/25 TA01
DESCRIPTION
The LT
op amps that offer higher gain, slew rate and bandwidth
than the industry standard OP-27 and competing OP-270/
OP-470 op amps. In addition, the LT1124/LT1125 have
lower I
than the OP-270/OP-470.
In the design, processing and testing of the device, par-
ticular 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 amplifi er. Consequently, the specifi cations
of even the lowest cost grades (the LT1124C and the
LT1125C) have been spectacularly improved compared
to equivalent grades of competing amplifi ers.
Power consumption of the LT1124 is one-half of two
OP-27s. Low power and high performance in both rotated
and standard 8-pin SO packages make the LT1124 a fi rst
choice for surface mounted systems and where board
space is restricted.
For a decompensated version of these devices, with three
times higher slew rate and bandwidth, please see the
LT1126/LT1127 data sheet.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 4775884, 4837496.
®
B
1124 dual and LT1125 quad are high performance
Dual/Quad Low Noise,
and I
OS
than the OP-27; lower V
(All Packages, LT1124 and LT1125)
30
20
10
0
–100
Input Offset Voltage Distribution
V
T
S
A
= ±15V
= 25°C
–60
INPUT OFFSET VOLTAGE (μV)
LT1124/LT1125
–20
20
2316 UNITS
758
200
60
TESTED
DUALS
QUADS
1124/25 TA02
OS
100
and noise
11245fe
1

Related parts for LT1125CN

LT1125CN Summary of contents

Page 1

... LT1126/LT1127 data sheet. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 4775884, 4837496. ...

Page 2

LT1124/LT1125 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage ........................................................±22V Input Voltages ............................Equal to Supply Voltage Output Short-Circuit Duration .......................... Indefi nite Differential Input Current (Note 6) .......................±25mA Lead Temperature (Soldering, 10 sec) .................. 300°C Storage Temperature Range ................... –65°C to ...

Page 3

... Plastic SO, Standard Pinout –55°C to 125°C LT1125CSW 16-Lead Plastic SO Wide LT1125MPSW 16-Lead Plastic SO Wide LT1124ACN8 8-Lead PDIP LT1124CN8 8-Lead PDIP LT1125ACN 14-Lead PDIP LT1125CN 14-Lead PDIP PART MARKING* PACKAGE DESCRIPTION 1124 8-Lead Plastic SO, Rotated Pinout 1124AI 8-Lead Plastic SO, Rotated Pinout 1124I 8-Lead Plastic SO, Rotated Pinout LT1125CSW ...

Page 4

LT1124/LT1125 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER V Input Offset Voltage OS ΔV Long-Term Input Offset OS ΔTime Voltage Stability I Input Offset Current OS I Input Bias Current B e Input Noise Voltage n Input Noise Voltage Density i Input Noise ...

Page 5

ELECTRICAL CHARACTERISTICS temperature range ±15V, unless otherwise noted. S SYMBOL PARAMETER V Input Offset Voltage OS ΔV Average Input Offset OS ΔTemp Voltage Drift I Input Offset Current OS I Input Bias Current B V Input Voltage Range ...

Page 6

LT1124/LT1125 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Typical parameters ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Output Short-Circuit Current vs Time ±15V S 40 25°C 30 –55°C 20 125° –10 125°C –20 25°C –30 –55°C –40 – TIME FROM OUTPUT SHORT TO GND (MINUTES) ...

Page 8

LT1124/LT1125 TYPICAL PERFORMANCE CHARACTERISTICS Offset Voltage Drift with Temperature of Representative Units ±15V –10 –20 –30 –40 –50 –50 – 100 TEMPERATURE (°C) 1124/25 G14 Large-Signal Transient ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS Total Harmonic Distortion and Noise vs Frequency for Noninverting Gain 0 2k/15pF 20V P +1, +10, +100 V MEASUREMENT BANDWIDTH = 10Hz TO 80kHz 0.010 A = +100 V ...

Page 10

LT1124/LT1125 APPLICATIONS INFORMATION The LT1124 may be inserted directly into OP-270 sock- ets. The LT1125 plugs into OP-470 sockets. Of course, all standard dual and quad bipolar op amps can also be replaced by these devices. Matching Specifi cations In ...

Page 11

APPLICATIONS INFORMATION High Speed Operation When the feedback around the op amp is resistive (R a pole will be created with R , the source resistance and F capacitance ( and the amplifi er input capacitance S ...

Page 12

... The comparison shows how the specs of the LT1124/ LT1125 not only stand up to the industry standard OP-27, Table 2. Guaranteed Performance ±15V LT1124CN8 PARAMETER/UNITS LT1125CN Voltage Noise, 1kHz 100% Tested Slew Rate 100% Tested Gain-Bandwidth Product 100% Tested Offset Voltage LT1124 ...

Page 13

SCHEMATIC DIAGRAM Q7 Q9 Q13 Q8 Q10 – V NONINVERTING INPUT (+) Q1A Q3 INVERTING INPUT (–) PACKAGE DESCRIPTION CORNER LEADS OPTION .045 – .068 (1.143 – 1.650) FULL LEAD OPTION .300 BSC (7.62 BSC) .008 – .018 (0.203 – ...

Page 14

LT1124/LT1125 PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .065 (1.651) TYP .008 – .015 (0.203 – 0.381) +.035 .325 –.015 +0.889 8.255 –0.381 NOTE: INCHES 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD ...

Page 15

PACKAGE DESCRIPTION .300 BSC (7.62 BSC) .008 – .018 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( ) ...

Page 16

LT1124/LT1125 PACKAGE DESCRIPTION .030 ±.005 TYP N .420 MIN RECOMMENDED SOLDER PAD LAYOUT .291 – .299 (7.391 – 7.595) NOTE 4 .010 – .029 × 45° (0.254 – 0.737) .005 (0.127) RAD MIN .009 – .013 NOTE ...

Page 17

... Revised part marking for LT1124AMPS8-1 in Order Information section Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 18

... Voltage Noise, 10fA/√Hz Current Noise 6nV/√Hz Voltage Noise, 1fA/√Hz Current Noise, 10pA Max I www.linear.com ● 10V OUTPUT 13 1μF 301k* 50k 499Ω* GAIN TRIM 1124/25 TA05 1010 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1992 11245fe ...

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