EVALUATION KIT AVAILABLE MAX44206 180MHz, Low-Noise, Low-Distortion, Fully Differential Op Amp/ADC Driver General Description Features and Benefits The MAX44206 is a low-noise, low-distortion fully differ- Low Input Noise Drives Precision SAR ADCs ential operational amplifier suitable for driving high-speed, 3.1nV/Hz at 1kHz high-resolution, 20-/18-/16-bit SAR ADCs, including the 200nV from 0.1Hz to 10Hz P-P MAX11905 ADC family. Featuring a combination of wide High Speed for DC and AC Applications 2.7V to 13.2V supply voltage range and wide 400MHz Gain-Bandwidth Product 400MHz bandwidth, the MAX44206 is suitable for low-power, high- -3dB Gain-Bandwidth Product 180MHz performance data acquisition systems. Slew Rate 180V/s The MAX44206 offers a VOCM input to adjust the output Ultra-Low Distortion Drives AC Inputs to 20-Bit SAR common-mode voltage, eliminating the need for a cou- ADCs pling transformer or AC-coupling capacitors. This adjust- HD2 = -141dB, HD3 = -152dB at f = 10kHz, IN able output common-mode voltage allows the MAX44206 V = 2V OUT,DIFF P-P to match the input common-mode voltage range of the HD2 = -106dB, HD3 = -115dB at f = 1MHz, ADC following it. Shutdown mode consumes only 6.8A IN V = 2V and extends battery life in battery-powered applications OUT,DIFF P-P or reduces average power in systems cycling between Wide Supply Range (2.7V to 13.2V) Drives Unipolar shutdown and periodic data readings. or Bipolar (6.6V) Signals The MAX44206 is available in an 8-pin MAX package 3.7mA Quiescent Supply Current with Only 6.8A and is specified for operation over the -40C to +125C Shutdown Current temperature range. 8-Pin MAX Package Saves Board Space Applications Ordering Information appears at end of data sheet. Single-Ended to Differential Conversion High-Speed Process Control Medical Imaging Typical Application Circuit Fully-Differential Signal Conditioning Active Filters 1k +5V HD2 AND HD3 vs. FREQUENCY 0 V S+ V = +5V,V = -5V VOUTDIFF = 2V S+ S- P-P -20 1k INM -40 OUT+ - IN- OUT+ -60 VINM + VOCM - MAX44206 -80 VOCM VCM HD2,NO V INP -100 + LOAD OUT- 1k OUT- IN+ HD3,NO INP -120 LOAD -140 V S- -160 10 100 1000 10000 INPUT FREQUENCY (kHz) -5V 1k MAX is a registered trademark of Maxim Integrated Products, Inc. 19-7446 Rev 0 11/14 MAGNITUDE (dB)MAX44206 180MHz, Low-Noise, Low-Distortion, Fully Differential Op Amp/ADC Driver Absolute Maximum Ratings V + to V - .............................................................-0.3V to +15V Operating Temperature Range ......................... -40C to +125C S S All Other Pins ................................. (V -) - 0.3V to (V +) + 0.3V Junction Temperature ......................................................+150C S S IN+ to IN- ..............................................................-0.3V to +0.3V Storage Temperature Range ............................ -65C to +150C Continuous Input Current into Any Pin (Note 1) ...............20mA Lead Temperature (soldering, 10s) .................................+300C Output Short-Circuit Duration (Note 1) .................................. 10s Soldering Temperature (reflow) .......................................+260C Continuous Power Dissipation (T = +70C) A MAX (derate 10.3mW/C above +70C) ................824.7mW (Note 1) Package Thermal Characteristics MAX Junction-to-Ambient Thermal Resistance ( ) .......77.6C/W JA Junction-to-Case Thermal Resistance ( ) .................5C/W JC 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 (5V Supply) (V = +5V, V - = -5V, V = 0V, SHDN = V , EP = 0V (Note 2), R = R = 1k, R = 1k (between OUT+ and OUT-), T = -40C S+ S OCM S+ F G L A to +125C, unless otherwise noted. Typical values are at T = +25C.) (Note 3) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY V + to V -, guaranteed by PSRR S S Supply Voltage Range V 2.7 13.2 V S (EP = V -) S No load, R = 3.7 6.8 mA L Quiescent Current I S SHDN = 0V 6.8 20 A V + to V - = 2.7V to 13.2V S S Power-Supply Rejection Ratio PSRR 90 123 dB (EP = V ) S - DIFFERENTIAL PERFORMANCEDC SPECIFICATIONS Input Common-Mode Range V Guaranteed by CMRR (V -) + 1.1 (V +) - 1.1 V ICM S S Input Common-Mode CMRR V = (V -) + 1.1V to (V +) - 1.1V 94 130 dB ICM S S Rejection Ratio Input Offset Voltage V 0.2 1.5 mV OS Input Offset Voltage Drift TCV 0.2 V/C OS Input Bias Current I 30 750 nA B Input Offset Current I 15 350 nA OS Open-Loop Gain A V = 6.6V , T = +25C 96 130 dB VOL OUT,DIFF P-P A Output Short-Circuit Current I 60 mA SC V + - V Applies to V , V 0.98 1.15 S OUT OUT+ OUT Output Voltage Swing V V - V - Applies to V , V 0.92 1.10 OUT S OUT+ OUT- Maxim Integrated 2 www.maximintegrated.com