lt5400-2 Linear Technology Corporation, lt5400-2 Datasheet

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lt5400-2

Manufacturer Part Number
lt5400-2
Description
Quad Matched Resistor Network
Manufacturer
Linear Technology Corporation
Datasheet
FeaTures
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applicaTions
Typical applicaTion
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Excellent Matching
– A-Grade: 0.01% Matching
– B-Grade: 0.025% Matching
0.2ppm/°C Matching Temperature Drift
±75V Operating Voltage (±80V Abs Max)
8ppm/°C Absolute Resistor Value Temperature Drift
Long-Term Stability: <2ppm at 2000 Hrs
–55°C to 150°C Operating Temperature
8-Lead MSOP Package
Difference Amplifier
Reference Divider
Precision Summing /Subtracting
INPUTS
REF
+
1
2
3
4
LT5400-4
Difference Amplifier
4.7pF
4.7pF
R1
R2
R3
R4
5400 TA01a
8
7
6
5
LT5400-4
CMRR > 80dB AT 200kHz
THD < –120dB AT 1kHz, 20V
+
LT1468
P-P
DescripTion
The LT
matching specifications over the entire temperature range.
Matching is also specified when the LT5400 is configured
in a difference amplifier. This enhanced matching specifica-
tion guarantees CMRR performance to be up to 2× better
than independently matched resistors.
All four resistors can be accessed and biased independently,
making the LT5400 a convenient and versatile choice for
any application that can benefit from matched resistors.
These resistor networks provide precise ratiometric stability
required in highly accurate difference amplifiers, voltage
references and bridge circuits.
The LT5400 is available in a space-saving 8-pin MSOP
package, and is specified over the temperature range of
–55°C to 150°C.
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.
®
5400 is a quad resistor network with excellent
30
25
20
15
10
5
0
–1 –0.8–0.6–0.4–0.2 0 0.2 0.4 0.6 0.8 1
Distribution of Matching Drift
Resistor Network
Quad Matched
ppm/°C
5400 G01
LT5400
5400fa
1

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lt5400-2 Summary of contents

Page 1

... These resistor networks provide precise ratiometric stability required in highly accurate difference amplifiers, voltage references and bridge circuits. The LT5400 is available in a space-saving 8-pin MSOP package, and is specified over the temperature range of –55°C to 150°C. 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. – ...

Page 2

... LT5400I ............................................... –40°C to 85°C LT5400H ............................................ –40°C to 125°C LT5400MP ......................................... –55°C to 150°C Maximum Junction Temperature .......................... 150°C Storage Temperature Range ................... –65°C to 150°C available opTions PART NUMBER (Ω) LT5400-1 10k LT5400-2 100k LT5400-3 10k LT5400-4 1k LT5400-5 1M LT5400-6 1k ...

Page 3

... LT5400BHMS8E-3#TRPBF LT5400ACMS8E-4#PBF LT5400ACMS8E-4#TRPBF LT5400BCMS8E-4#PBF LT5400BCMS8E-4#TRPBF LT5400AIMS8E-4#PBF LT5400AIMS8E-4#TRPBF LT5400BIMS8E-4#PBF LT5400BIMS8E-4#TRPBF LT5400AHMS8E-4#PBF LT5400AHMS8E-4#TRPBF LT5400BHMS8E-4#PBF LT5400BHMS8E-4#TRPBF LT5400BMPMS8E-4#PBF LT5400BMPMS8E-4#TRPBF LT5400ACMS8E-5#PBF LT5400ACMS8E-5#TRPBF LT5400BCMS8E-5#PBF LT5400BCMS8E-5#TRPBF LT5400AIMS8E-5#PBF LT5400AIMS8E-5#TRPBF ...

Page 4

... The LT5400C is designed, characterized and expected to meet specified performance from –40°C to 85°C but is not tested or QA sampled at these temperatures. The LT5400I is guaranteed to meet specified performance from –40°C to 85°C. The LT5400H is guaranteed to meet specified performance from –40°C to 125° ...

Page 5

... Typical perForMance characTerisTics Distribution of Matching Drift –1 –0.8–0.6–0.4–0.2 0 0.2 0.4 0.6 0.8 1 ppm/°C Change in Matching vs Time –1 –2 –3 –4 –5 0 400 800 TIME (HOURS) 5400 G01 LT5400 1200 1600 2000 5400 G02 5400fa 5 ...

Page 6

... Looser definitions would compare each resistor value to the average of the resistor values, which would typically result in specifica- tions that appear twice as good as they are per the LT5400’s more conservative definition. The following two examples illustrate this point. ...

Page 7

... REF 4 5 LT5400-4 4.7pF CMRR > 80dB AT 200kHz THD < –120dB AT 1kHz, 20V 5400 TA02 LT5400 – 4.096V 2.7µ Micropower Reference Divide-by-4 LT5400 1µ – LT5400 LT1468 P-P 5V LT6200 2.048V 10µF 5400 TA03 ...

Page 8

... LT5400 package DescripTion Please refer to http://www.linear.com/designtools/packaging/ 1.88 ± 0.102 (.074 ± .004) 5.23 (.206) MIN 0.42 ± 0.038 (.0165 ± .0015) TYP RECOMMENDED SOLDER PAD LAYOUT DETAIL “A” 0.254 (.010) GAUGE PLANE DETAIL “A” 0.18 (.007) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006" ...

Page 9

... DESCRIPTION A 8/11 Added LT5400-4, LT5400-5, LT5400-6. Changes reflected throughout the data sheet. 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 10

... PART NUMBER DESCRIPTION LT1991 Precision Difference Amplifier LT1990 High Voltage Difference Amplifier LT1167 Instrumentation Amplifier 10 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● Precision Single-Ended to Differential Conversion LT5400 – LTC6362 THD = – ...

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