Click here for production status of specific part numbers. MAX9939 SPI Programmable-Gain Amplifier with Input V Trim and Output Op Amp OS General Description Features The MAX9939 is a general-purpose, differential-input SPI-Programmable Gains: 0.2V/V to 157V/V programmable-gain amplifier (PGA) that is ideal for Extremely Low Gain Tempco conditioning a variety of wide dynamic range signals Integrated Amplifier for R/C Programmable Active such as those found in motor current-sense, medical Filter instrumentation, and sonar data acquisition applications. Input Offset-Voltage Compensation It features programmable differential gains from 0.2V/V to 157V/V, input offset-voltage compensation, and an output Input Protection to 16V amplifier that can be configured either as a high-order 13A Software Shutdown Mode active filter or to provide a differential output. -40C to +125C Operating Temperature Range The PGA is optimized for high-signal bandwidth and 10-Pin MAX Package its gain can be programmed to be 0.2V/V, 1V/V, 10V/V, 20V/V, 30V/V, 40V/V, 60V/V, 80V/V, 119V/V, and 157V/V. Precision resistor matching provides extremely low gain tempco and high CMRR. Although the MAX9939 operates Ordering Information from a single supply V between 2.9V to 5.5V, it can CC process signals both above and below ground due to the PART TEMP RANGE PIN-PACKAGE use of an input level-shifting amplifier stage. Furthermore, MAX9939AUB+ -40C to +125C 10 MAX its inputs are protected to 16V, allowing it to withstand MAX9939AUB/V+T -40C to +125C 10 MAX fault conditions and signal overranges. /V denotes an automotive-qualified part. The output amplifier is designed for high bandwidth and +Denotes a lead(Pb)-free/RoHS-compliant package. low-bias currents, making it ideal for use in multiple- feedback active filter topologies that offer much higher Qs and stopband attenuation than Sallen-Key architectures. The MAX9939 draws 3.4mA of quiescent supply current at 5V, and includes a software-programmable shutdown mode that reduces its supply current to only 13A. The Pin Configuration MAX9939 is available in a 10-pin MAX package and operates over the -40C to +125C automotive temperature TOP VIEW range. + SCLK 1 10 CS Applications DIN 2 9 V CC Sensorless Motor Control MAX9939 GND 3 8 OUTA Medical Signal Conditioning INA- 4 7 INB Sonar and General Purpose Data Acquisition Differential to Single-Ended Conversion INA+ 5 6 OUTB Differential-Input, Differential-Output Signal Amplification MAX Sensor Interface and Signal Processing MAX is a registered trademark of Maxim Integrated Products, Inc. Functional Diagram appears at end of data sheet. 19-4329 Rev 4 8/19MAX9939 SPI Programmable-Gain Amplifier with Input V Trim and Output Op Amp OS Absolute Maximum Ratings V to GND ............................................................-0.3V to +6V Operating Temperature Range ......................... -40C to +125C CC INB, OUTA, OUTB, SCLK, DIN, CS ......... -0.3V to (V + 0.3V) Junction Temperature ......................................................+150C CC INA+, INA- to GND .................................................-16V to +16V Storage Temperature Range ............................ -65C to +150C Output Short-Circuit Current Duration .......................Continuous Lead Temperature (soldering, 10s) .................................+300C Continuous Input Current into Any Terminal ....................20mA Soldering Temperature (reflow) .......................................+260C Continuous Power Dissipation (T = +70C) A 10-Pin MAX (derate 5.6mW/C above +70C) ..........707mW 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 = 5V, V = 0V, V = V , Gain = 10V/V, R = R = 1k to V /2, T = T to T , unless otherwise noted. CC GND INA+ INA- OUTA OUTB CC A MIN MAX Typical values are at T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS PGA CHARACTERISTICS Gain Error GE 0.05 0.38 % T = +25C, 0.2V V VCC - 0.2V A OUTA Gain Temperature-Coefficient Tc-GE 2.2 17 ppm/C With no V trim, T = +25C 1.5 9 OS A Input Offset Voltage (Note 2) V mV OS-A With no V trim, T = T to T 15 OS A MIN MAX Input Offset-Voltage Drift 10 V/C Input Offset-Voltage Trim Range 17 mV V CC Input Common-Mode Range V Guaranteed by CMRR test (Note 3) -V /2 V CM CC - 2.2 -1V V V - 2.2V 50 60 CM CC Common-Mode Rejection Ratio CMRR -V /2 V V - 2.2V, T = +25C 50 60 dB CC CM CC A -V /2 V V - 2.2V 39 CC CM CC Output Short-Circuit current I 70 mA SC Input-Voltage Noise Density V f = 10kHz, gain = 157V/V 54 nV/Hz N Gain = 0.2V/V 2.15 Gain-Bandwidth Product GBW Gain = 1V/V MHz Gain = 157V/V 279 Slew Rate SR 9 V/s Settling Time t To 1%, 2V output step 0.45 s S Distortion THD f = 1kHz, V = 2.5V 89 dB OUTA P-P Max Capacitive Load C 1 nF L(MAX) Voltage output high = V - V , CC OUTA Output Swing V , V 25 60 mV OH OL voltage output low = V - V OUTA GND OUTPUT AMPLIFIER CHARACTERISTICS Input Bias Current Ib (Note 4) 1 pA T = +25C 1.5 9 A Input Offset Voltage (Note 2) V mV OS-B T = T to T 15 A MIN MAX Output Short-Circuit Current I 70 mA SC Maxim Integrated 2 www.maximintegrated.com