Datasheet

12Maxim Integrated
MAX44241/MAX44243/MAX44246
36V, Low-Noise, Precision,
Single/Quad/Dual Op Amps
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
Layout Guidelines
The MAX44241/MAX44243/MAX44246 feature ultra-low
offset voltage and noise. Therefore, to get optimum per-
formance follow the following layout guidelines.
Avoid temperature gradients at the junction of two dis-
similar metals. The most common dissimilar metals used
on a PCB are solder-to-component lead and solder-to-
board trace. Dissimilar metals create a local thermo-
couple. A variation in temperature across the board can
cause an additional offset due to Seebeck effect at the
solder junctions. To minimize the Seebeck effect, place
the amplifier away from potential heat sources on the
board, if possible. Orient the resistors such that both
the ends are heated equally. It is a good practice to
match the input signal path to ensure that the type and
number of thermoelectric junctions remain the same. For
example, consider using dummy 0Ω resistors oriented
in such a way that the thermoelectric sources, due to
the real resistors in the signal path, are cancelled. It is
recommended to flood the PCB with ground plane. The
ground plane ensures that heat is distributed uniformly
reducing the potential offset voltage degradation due to
Seebeck effect.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
5 SOT23 U5+1
21-0057 90-0174
8 SO S8+4
21-0041 90-0096
8 µMAX U8+1
21-0036 90-0092
14 SO S14M+4
21-0041 90-0112
14 TSSOP U14M+1
21-0066 90-0113
Ordering Information
+Denotes a lead(Pb)-free/RoHS-compliant package.
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX44241AUA+ -40NC to +125NC 8 FMAX —
MAX44241AUK+ -40NC to +125NC 5 SOT23 AFMR
MAX44243ASD+ -40NC to +125NC 14 SO —
MAX44243AUD+ -40NC to +125NC 14 TSSOP —
MAX44246ASA+ -40NC to +125NC 8 SO —
MAX44246AUA+ -40NC to +125NC 8 FMAX —