Document
19-4433; Rev 0; 3/09
High-Voltage, Precision, Low-Power Op Amps
www.datasheet4u.com
General Description
♦ Wide 6V to 38V Supply Range
Features
♦ 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)
MAX9943/MAX9944
The MAX9943/MAX9944 is a family of high-voltage amplifiers that offers precision, low drift, and low-power consumption. 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 supply range operating from ±3V to ±19V dual supplies or a 6V to 38V single supply. The MAX9943/MAX9944 is ideal for sensor signal conditioning, 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 temperature range.
Ordering Information
PART MAX9943AUA+ MAX9943ATT+ MAX9944ATA+** TEMP RANGE -40°C to +125°C -40°C to +125°C -40°C to +125°C PINPACKAGE 8 µMAX 6 TDFN-EP* 8 SO 8 TDFN-EP* TOP MARK AACA AUF — BLN
Applications
Sensor Interfaces Loop-Powered Systems Industrial Instrumentation High-Voltage ATE High-Performance ADC/DAC Input/Output Amplifiers
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX9944ASA+** -40°C to +125°C
+Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. **Future product—contact factory for availability.
Capacitive Load vs. Resistive Load
MAX9943 toc17
Package Detail
TOP VIEW
100,000
MAX9943
OUT 1 *EP 6 VCC
10,000 CLOAD (pF)
UNSTABLE
VEE
2
5
N.C.
1000
STABLE
IN+ 3 4 IN-
100 100 1000 10,000 RLOAD (Ω) 100,000
TOP VIEW 6 TDFN-EP
*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.
High-Voltage, Precision, Low-Power Op Amps MAX9943/MAX9944
ABSOLUTE www.datasheet4u.com MAXIMUM RATINGS
θJC ..............................................................................42°C/W 6-Pin TDFN-EP (derate 23.8mW/°C above +70°C) ..1904.8mW θJA ..............................................................................42°C/W θJC ................................................................................9°C/W 8-Pin SO (derate 7.6mW/°C above +70°C)...................606.1W θJA ............................................................................132°C/W θJC ..............................................................................38°C/W 8-Pin TDFN-EP (derate 24.4mW/°C above +70°C) ..1951.2mW θJA ..............................................................................41°C/W θJC ................................................................................8°C/W Operating Temperature Range .........................-40°C to +125°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C
Supply Voltage (VCC to VEE) ..................................-0.3V to +40V All Other Pins (Note 1) .....................(VEE - 0.3V) to (VCC + 0.3V) OUT Short-Circuit Current Duration 8-Pin µMAX (VCC - VEE ≤ 20V)...............................................3s 8-Pin µMAX (VCC - VEE > 20V) ................................Momentary 6-Pin TDFN (VCC - VEE ≤ 20V) .............................................60s 6-Pin TDFN (VCC - VEE > 20V)...............................................2s Continuous Input Current (Any Pins) ................................±20mA Thermal Limits (Note 2) Multiple Layer PCB Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX (derate 4.8mW/°C above +70°C) ...........387.8mW θJA .........................................................................206.3°C/W
Note 1: Operation is limited by thermal limits. Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERIST.