EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX9611/MAX9612 High-Side, Current-Sense Amplifiers with 12-Bit ADC and Op Amp/Comparator General Description Features The MAX9611/MAX9612 are high-side current-sense 0V to +60V Input Common-Mode Voltage Range amplifiers with an integrated 12-bit ADC and a gain block 2.7V to 5.5V Power-Supply Range, Compatible with that can be configured either as an op amp or comparator, 1.8V and 3.3V Logic making these devices ideal for a number of industrial and 5A Software Shutdown Current automotive applications. Integrated 12-Bit ADC The high-side, current-sense amplifiers operate over a 13V Current-Sense ADC Resolution wide 0V to 60V input common-mode voltage range. The programmable full-scale voltage (440mV, 110mV, and 500V (max) Current-Sense ADC Input Offset 55mV) of these amplifiers offers wide dynamic range, Voltage accurate current measurement, and application flexibility 0.5% (max) Current-Sense ADC Gain Error in choosing sense resistor values. A choice of either an 2 I C Bus with 16 Addresses internal op amp or a comparator is provided to the user. The internal amplifier can be used to limit the inrush cur- Small, 3mm x 5mm 10-Pin MAX Package rent or to create a current source in a closed-loop system. -40C to +125C Operating Temperature Range The comparator can be used to monitor fault events for fast response. Ordering Information/Selector Guide 2 An I C-controlled 12-bit, 500sps analog-to-digital con- PART OUTPUT PIN-PACKAGE verter (ADC) can be used to read the voltage across the MAX9611AUB+ Noninverting 10 MAX sense resistor (V ), the input common-mode voltage SENSE MAX9612AUB+ Inverting 10 MAX (V ), op-amp/comparator output (V ), op-amp/ RSCM OUT Note: All devices operate over the -40C to +125C tempera- comparator reference voltage (V ), and internal die SET ture range. 2 temperature. The I C bus is compatible with 1.8V and 3.3V +Denotes a lead(Pb)-free/RoHS-compliant package. logic, allowing modern microcontrollers to interface to it. The MAX9611 features a noninverting input-to-output Typical Application Circuit configuration while the MAX9612 features an inverting input-to-output configuration. R SENSE 0V TO 60V The MAX9611/MAX9612 operate with a 2.7V to 5.5V supply voltage range, are fully specified over the -40C to +125C automotive temperature range, and are available RS+ RS- in a 3mm x 5mm, 10-pin MAX package. LOAD V IN Applications V A0 CC 0.1F Hybrid Automotive Power Supplies A1 MAX9611 Server Backplanes MAX9612 Base-Station PA Control OUT C Base-Station Feeder Cable Bias-T Telecom Cards SET SCL SCL Battery-Operated Equipment 1.8V LOGIC SDA SDA GND MAX is a registered trademark of Maxim Integrated Products, Inc. Functional Diagrams appear at end of data sheet. 19-5543 Rev 5 12/19MAX9611/MAX9612 High-Side, Current-Sense Amplifiers with 12-Bit ADC and Op Amp/Comparator Absolute Maximum Ratings V to GND ............................................................-0.3V to +6V MAX Package Junction-to-Ambient CC RS+, RS-, OUT to GND ........................................-0.3V to +65V Thermal Resistance ( ) (Note 1) .............................13C/W JA Differential Input Voltage, RS+ - RS- ..................................65V Operating Temperature Range ......................... -40C to +125C All Other Pins to GND .............................................-0.3V to +6V Junction Temperature ......................................................+150C OUT Short-Circuit to GND .........................................Continuous Storage Temperature Range ............................ -65C to +150C Continuous Current into Any Pin ......................................20mA Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow) .......................................+260C A 10-Pin MAX (derate 8.8mW/C above +70C) ..........707mW Note 1: 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. 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 Characteristics (V = 3.3V, V = V = +12V, V = (V - V ) = 0V, T = -40C to +125C, unless otherwise noted. Typical values are CC RS+ RS- SENSE RS+ RS- A at T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CURRENT-SENSE AMPLIFIER DC CHARACTERISTICS Input Common-Mode Range Guaranteed by CMRR 0 60 V T = +25C, gain = 8x 0.045 0.5 A T = -40C to +125C, gain = 8x 2 A T = +25C, gain = 4x 0.045 0.5 Input Offset Voltage ADC Path A V mV OS (Note 3) T = -40C to +125C, gain = 4x 2 A T = +25C, gain = 1x 0.1 0.8 A T = -40C to +125C, gain = 1x 2.6 A T = +25C, gain = 8x 0.1 0.5 A T = -40C to + 85C, gain = 8x 1.8 A T = -40C to +125C, gain = 8x 2.5 A Gain Error (Note 3) GE T = +25C, gain = 4x 0.4 1.7 % A T = -40C to +125C, gain = 4x 3.1 A T = +25C, gain = 1x 1 4 A T = -40C to +125C, gain = 1x 4.7 A Differential Input Resistance R 300 k INDM Common-Mode Input Resistance R 12 M INCM T = +25C 1 2 A Input Bias Current I , I A RS+ RS- T = -40C to +125C 5 A T = +25C 3 6 A Input Offset Current (Note 4) (I ) - (I nA RS+ RS-) T = -40C to +125C 6 A Maxim Integrated 2 www.maximintegrated.com