36V, Precision, Low-Noise, Wide-Band Amplifier MAX9632
14Pages

________________________________________________________________ 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. MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier 19-5200; Rev 0; 10/10 +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Ordering Information General Description The MAX9632 is a low-noise, precision, wide-band operational amplifier that can operate in a very wide +4.5V to +36V supply voltage range. The IC operates in dual (±18V) mode. The exceptionally fast settling time and low distortion make the IC an excellent solution for precision acquisition systems. The rail-to-rail output swing maximizes the dynamic range when driving high-resolution 24-bit ÓÄ ADCs even with low supply voltages. The IC achieves 55MHz of gain-bandwidth product and ultra-low 0.94nV/ãHz input voltage noise with only 3.9mA of quiescent current. The IC is offered in 8-pin SO and TDFN packages and is rated for operation over the -40NC to +125NC temperature range. Applications High-Resolution ADC Drivers High-Resolution DAC Buffers Medical Imaging Low-Noise Signal Processing Test and Measurement Systems ATE Features S 0.94nV/ãHz Ultra-Low Input Voltage Noise S Very Fast 600ns Settling Time to 16-Bit Accuracy S THD of -128dB at 10kHz S Low Input Offset Voltage 125ìV (max) S Low Input Offset Temperature Drift 0.5ìV/°C (max) S Gain-Bandwidth Product 55MHz S +4.5V to +36V Wide Supply Range S Rail-to-Rail Output S Unity-Gain Stable S 8-Pin SO and TDFN Packages S ESD 8kV HBM and 1kV CDM EVALUATION KIT AVAILABLE FREQUENCY (Hz) 10 100 1k 10k 100k INPUT-VOLTAGE NOISE DENSITY vs. FREQUENCY MAX9632 toc12 INPUT-VOLTAGE NOISE DENSITY (nV/Hz) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 TOTAL HARMONIC DISTORTION vs. OUTPUT VOLTAGE MAX9632 toc23 OUTPUT VOLTAGE (V) TOTAL HARMONIC DISTORTION (THD) 1 -150 -140 -130 -120 -110 -100 -90 -80 -160 0.1 10 f = 10kHz f = 1kHz PART TEMP RANGE PINPACKAGE TOP MARK MAX9632ASA+ -40NC to +125NC 8 SO — MAX9632ATA+ -40NC to +125NC 8 TDFN-EP* BML

_______________________________________________________________________________________ 3 MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier ELECTRICAL CHARACTERISTICS (continued) (VCC = 15V, VEE = -15V, RL = 10kI to VGND, VIN+ = VIN- = VGND = 0V, VSHDN = VGND, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless otherwise noted.) (Note 2) Note 2: All devices are 100% production tested at TA = +25NC. Temperature limits are guaranteed by design. Note 3: Guaranteed by design. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Common-Mode Rejection Ratio CMRR VEE + 1.8V P VCM P VCC -...

_______________________________________________________________________________________ 5 MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Typical Operating Characteristics (continued) (VCC = 15V, VEE = -15V, RL = 10kI to VGND, VIN+ = VIN- = VGND = 0V, VSHDN = VGND, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless otherwise noted.) OUTPUT VOLTAGE LOW vs. OUTPUT CURRENT (SINK) MAX9632 toc10 OUTPUT VOLTAGE LOW (V) -14.95 -14.90 -14.85 -14.80 -14.75 -14.70 -14.65 -14.60 -14.55 -15.00 OUTPUT SINK CURRENT (mA) 0 10 20 30 40 50 60 TA = +85°C TA = 0°C TA = -40°C TA = +25°C TA =...

6 _______________________________________________________________________________________ MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Typical Operating Characteristics (continued) (VCC = 15V, VEE = -15V, RL = 10kI to VGND, VIN+ = VIN- = VGND = 0V, VSHDN = VGND, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless otherwise noted.) ISOLATION RESISTANCE vs. CAPACITIVE STABILITY MAX9632 toc19 CAPACITIVE LOAD (pF) ISOLATION RESISTANCE (I) 100 200 300 400 500 600 700 800 900 1 2 3 4 5 6 7 8 9 10 0 0 1000 STABLE UNSTABLE POWER-UP TIME VCC = 5V, VEE = -5V MAX9632 toc20 VCC...

_______________________________________________________________________________________ 7 MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Pin Configuration Pin Description TOP VIEW NOT TO SCALE OUT VEE N.C. 1 2 8 7 SHDN VCC OUT N.C. SHDN IN- VCC IN+ N.C. VEE ININ+ N.C. SO TDFN 3 4 6 5 MAX9632 MAX9632 + + 1 3 2 4 8 6 7 EP 5 PIN NAME FUNCTION 1, 5 N.C. Not Connected 2 IN- Negative Input 3 IN+ Positive Input 4 VEE Negative Supply Voltage 6 OUT Output 7 VCC Positive Supply Voltage 8 SHDN Active-High Shutdown — EP Exposed Pad (TDFN Only). Connect to a large VEE plane to maximize thermal...

8 _______________________________________________________________________________________ MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Detailed Description The MAX9632 is designed in a new 36V, high-speed complementary BiCMOS process that is optimized for excellent AC dynamic performance combined with highvoltage operation. The IC offers precision, high-bandwidth, ultra-low noise and exceptional distortion performance. The IC is unity-gain stable and operates either with single-supply voltage up to 36V or with dual supplies up to Q18V. Applications Information Operating Supply...

_______________________________________________________________________________________ 9 MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Careful layout technique helps optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins. For high-frequency designs, ground vias are critical to provide a ground return path for high-frequency signals and should be placed near the decoupling capacitors. Signal routing should be short and...

______________________________________________________________________________________ 11 MAX9632 36V, Precision, Low-Noise, Wide-Band Amplifier Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE No. LAND PATTERN NO. 8 SO S8+2 21-0041 90-0096 8 TDFN-EP T833+3 21-0137 90-0058