MAX9943/MAX9944 High-Voltage, Precision, Low-Power Op Amps General Description Features The MAX9943/MAX9944 is a family of high-voltage Wide 6V to 38V Supply Range amplifiers that offers precision, low drift, and low-power Low 100V (max) Input Offset Voltage consumption. Low 0.4V/C Offset Drift The MAX9943 (single) and MAX9944 (dual) op amps Unity Gain Stable with 1nF Load Capacitance offer 2.4MHz of gain-bandwidth product with only 550A of supply current per amplifier. 2.4MHz Gain-Bandwidth Product The MAX9943/MAX9944 family has a wide power supply 550A Supply Current range operating from 3V to 19V dual supplies or a 6V 20mA Output Current to 38V single supply. Rail-to-Rail Output The MAX9943/MAX9944 is ideal for sensor signal condi- Package Options tioning, high-performance industrial instrumentation and 3mm x 5mm, 8-Pin MAX or 3mm x 3mm, 6-Pin loop-powered systems (e.g., 4mA20mA transmitters). TDFN Packages (Single) The MAX9943 is offered in a space-saving 6-pin TDFN 5mm x 6mm, 8-Pin SO or 3mm x 3mm, 8-Pin or 8-pin MAX package. The MAX9944 is offered in an TDFN Packages (Dual) 8-pin SO or an 8-pin TDFN package. These devices are specified over the -40C to +125C automotive tempera- Pin Configurations appear at end of data sheet. ture range. Applications Sensor Interfaces Loop-Powered Systems Industrial Instrumentation High-Voltage ATE High-Performance ADC/DAC Input/Output Amplifiers MAX is a registered trademark of Maxim Integrated Products, Inc. Capacitive Load vs. Resistive Load 100,000 UNSTABLE 10,000 1000 STABLE 100 100 1000 10,000 100,000 R () LOAD 19-4433 Rev 4 10/17 C (pF) LOADMAX9943/MAX9944 High-Voltage, Precision, Low-Power Op Amps Absolute Maximum Ratings Supply Voltage (V to V ) ................................-0.3V to +40V Continuous Input Current (Any Pins) ...............................20mA CC EE All Other Pins (Note 1) ..................(V - 0.3V) to (V + 0.3V) Thermal Limits (Note 2) EE CC OUT Short-Circuit Current Duration Multiple Layer PCB 8-Pin MAX (V - V 20V) .......................................... 3s Continuous Power Dissipation (T = +70C) CC EE A 8-Pin MAX (V - V > 20V) ............................ Momentary 8-Pin MAX (derate 4.8mW/C above +70C) .........387.8mW CC EE 6-Pin TDFN (V - V 20V) .......................................60s 6-Pin TDFN-EP (derate 23.8mW/C above +70C) ... 1904.8mW CC EE 6-Pin TDFN (V - V > 20V) .......................................... 2s 8-Pin SO (derate 7.6mW/C above +70C) .................606.1W CC EE 8-Pin SO (V - V 20V) ............................................. 60s 8-Pin TDFN-EP (derate 24.4mW/C above +70C) ... 1951.2mW CC EE 8-Pin SO (V - V > 20V) ............................................... 2s Operating Temperature Range ......................... -40C to +125C CC EE 8-Pin TDFN (V - V 20V) ......................................... 60s Junction Temperature ......................................................+150C CC EE 8-Pin TDFN (V - V > 20V) .......................................... 2s Lead Temperature (soldering, 10s) .................................+300C CC EE Soldering Temperature (reflow) .......................................+260C Note 1: Operation is limited by thermal limits. 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. (Note 2) Package Thermal Characteristics 8 MAX 8 SO Junction-to-Ambient Thermal Resistance ( ) .....206.3C/W Junction-to-Ambient Thermal Resistance ( ) ........132C/W JA JA Junction-to-Ambient Case Resistance ( ) ...............42C/W Junction-to-Ambient Case Resistance ( ) ...............38C/W JC JC 6 TDFN-EP 8 TDFN-EP Junction-to-Ambient Thermal Resistance ( ) ..........42C/W Junction-to-Ambient Thermal Resistance ( ) ..........41C/W JA JA Junction-to-Ambient Case Resistance ( ) .................9C/W Junction-to-Ambient Case Resistance ( ) .................8C/W JC JC Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = 15V, V = -15V, V = 0V, R = 10k to GND, V = 0V, T = -40C to +125C. Typical values are at T = +25C, unless CC EE CM L GND A A otherwise noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS Operating Supply Voltage Range V Guaranteed by PSRR test 3 19 V SUPPLY Quiescent Supply Current per I 550 950 A CC Amplifier Power-Supply Rejection Ratio PSRR V = 3V to 19V 105 130 dB S T = +25C 20 100 A Input Offset Voltage V V OS T = -40C to +125C 240 A Input Offset Voltage Drift TCV 0.4 V/C OS V + 0.3V V V - 1.8V 4 20 EE CM CC Input Bias Current I nA BIAS V V V - 1.8V 90 EE CM CC Input Offset Current I V V V - 1.8V 1 10 nA OS EE CM CC Guaranteed by CMRR test, V - CC Input Voltage Range V , V V V IN+ IN- EE T = -40C to +125C 1.8 A V + 0.3V V V - 1.8V 105 125 EE CM CC Common-Mode Rejection Ratio CMRR dB V V V - 1.8V 105 EE CM CC Maxim Integrated 2 www.maximintegrated.com