LT5400_15 Datasheet, PDF (1/12 Pages) Linear Technology – Quad Matched Resistor Network

LT5400
Quad Matched
Resistor Network
Features
n _{Excellent Matching}
n _{A-Grade: 0.01% Matching}
n _{B-Grade: 0.025% Matching}
n _{0.2ppm/°C Matching Temperature Drift}
n _{±75V Operating Voltage (±80V Abs Max)}
n _{8ppm/°C Absolute Resistor Value Temperature Drift}
n _{Long-Term Stability: <2ppm at 2000 Hrs}
n _{–55°C to 150°C Operating Temperature}
n _{8-Lead MSOP Package}
Applications
n _{Difference Amplifier}
n _{Reference Divider}
n _{Precision Summing /Subtracting}
Description
The LT^®5400 is a quad resistor network with excellent
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.
Typical Application
Difference Amplifier
4.7pF
–
INPUTS
+
REF
LT5400-4 _R1
1
R2
2
R3
3
R4
4
4.7pF
8
–
7
LT1468
6
+
5
5400 TA01a
LT5400-4
CMRR > 80dB AT 200kHz
THD < –120dB AT 1kHz, 20V_P-P
Distribution of Matching Drift
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
ppm/°C
5400 G01
For more information www.linear.com/LT5400
5400fc
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