19-4433; Rev 0; 3/09
High-Voltage, Precision, Low-Power Op Amps
The MAX9943/MAX9944 is a family of high-voltage
amplifiers that offers precision, low drift, and low-power
The MAX9943 (single) and MAX9944 (dual) op amps
offer 2.4MHz of gain-bandwidth product with only
550µA of supply current per amplifier.
The MAX9943/MAX9944 family has a wide power sup-
ply range operating from ±3V to ±19V dual supplies or
a 6V to 38V single supply.
The MAX9943/MAX9944 is ideal for sensor signal condi-
tioning, high-performance industrial instrumentation and
loop-powered systems (e.g., 4mA–20mA transmitters).
The MAX9943 is offered in a space-saving 6-pin TDFN or
8-pin µMAX® package. The MAX9944 is offered in an
8-pin SO or an 8-pin TDFN package. These devices are
specified over the -40°C to +125°C automotive tempera-
High-Performance ADC/DAC Input/Output
µMAX is a registered trademark of Maxim Integrated Products, Inc.
♦ Wide 6V to 38V Supply Range
♦ Low 100µV (max) Input Offset Voltage
♦ Low 0.4µV/°C Offset Drift
♦ Unity Gain Stable with 1nF Load Capacitance
♦ 2.4MHz Gain-Bandwidth Product
♦ 550µA Supply Current
♦ 20mA Output Current
♦ Package Options
3mm x 5mm, 8-Pin µMAX or 3mm x 3mm, 6-Pin
TDFN Packages (Single)
5mm x 6mm, 8-Pin SO or 3mm x 3mm, 8-Pin
TDFN Packages (Dual)
MAX9943AUA+ -40°C to +125°C 8 µMAX
MAX9943ATT+ -40°C to +125°C 6 TDFN-EP*
MAX9944ASA+** -40°C to +125°C 8 SO
MAX9944ATA+** -40°C to +125°C 8 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
**Future product—contact factory for availability.
Capacitive Load vs. Resistive Load
*EP = EXPOSED PAD.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.