19-1749; Rev 0; 7/00 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps ____________________________Features ♦ 16-Bit Accurate Settling in 37ns (MAX4430/MAX4432) ♦ 100dB SFDR at 1MHz, 4Vp-p Output ♦ 2.8nV/√Hz Input Voltage Noise Density ♦ 110dB (min) Open-Loop Gain ♦ 145V/µs Slew Rate (MAX4431/MAX4433) ♦ 60mA High Output Drive ♦ Wide Voltage Swing Capable of Driving ADC Inputs with ≥4Vp-p Input Dynamic Range ♦ Available in Space-Saving Packages 5-pin SOT23 (MAX4430/MAX4431) 8-pin µMAX (MAX4432/MAX4433) Ordering Information PART TEMP. RANGE PIN-PACKAGE MAX4430EUK-T -40oC to +85oC 5 SOT23-5 MAX4430ESA -40oC to +85oC 8 SO Ordering Information continued at end of data sheet. The MAX4430/MAX4431 are available in a space-saving 5-pin SOT23 package, and the MAX4432/MAX4433 are available in an 8-pin µMAX package. Selector Guide MIN GAIN AMPS STABLE (V/V) PART ________________________Applications High-Speed 14- and 16-Bit ADC Preamplifiers Low-Noise Preamplifiers IF/RF Amplifiers Low-Distortion Active Filters High-Performance Receivers Precision Instrumentation BW (MHz) SETTLING TIME TO 0.0015% (ns) MAX4430 1 +1 180 37 MAX4431 1 +2 215 63 MAX4432 2 +1 180 37 MAX4433 2 +2 215 63 Typical Operating Circuit VCC Pin Configurations C1 TOP VIEW MAX4430 MAX4431 OUT 1 VEE 2 IN+ 3 5 HIGH-SPEED 14-/16-BIT ADC VCC 1 5 2 4 IN3 IN SOT23-5 Pin Configurations continued at end of data sheet. MAX4430 MAX4431 4 C2 VEE ________________________________________________________________ Maxim Integrated Products 1 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX4430–MAX4433 General Description The MAX4430/MAX4431 single and MAX4432/MAX4433 dual operational amplifiers feature wide bandwidth, 16bit settling times in 37ns, and low-noise/low-distortion operation. The MAX4430/MAX4432 are compensated for unity gain stability and have a small signal -3dB bandwidth of 180MHz. The MAX4431/MAX4433 are compensated for closed-loop gains of +2 or greater and have a small-signal -3dB bandwidth of 215MHz. The MAX4430–MAX4433 op amps require only 11mA of supply current per amplifier while achieving 125dB openloop gain. Voltage noise density is a low 2.8nV/√Hz, and provides 100dB spurious-free dynamic range (SFDR) at 1MHz. These characteristics make these op amps ideal for driving modern high-speed 14- and 16bit analog-to-digital converters (ADCs). These high-speed op amps feature wide output voltage swings capable of driving ADCs with ≥4V input dynamic range and a high current output drive up to 60mA. Using a voltage feedback architecture, the MAX4430– MAX4433 meet the requirements of many applications that previously depended on current feedback amplifiers. MAX4430–MAX4433 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to VEE)................................................+12V Differential Input Voltage .......................................................+2V Input Voltage Range ........................(VCC + 0.3V) to (VEE - 0.3V) Output Short-Circuit Duration to VCC or VEE ...................(Note 1) Current Into Any Input Pin ................................................±25mA Continuous Power Dissipation (TA = +70°C) 5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) .............330mW 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Note 1: The MAX4430–MAX4433 are not protected for output short-circuit conditions. 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. DC ELECTRICAL CHARACTERISTICS (VCC = +5V, VEE = -5V, RL = ∞, VCM = 0, and TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP VEE + 2.5 Input Common-Mode Voltage Range VCM Input Offset Voltage VOS ±1.25 TCVOS 7 Input Offset Voltage Temperature Coefficient Input Offset Voltage Matching Guaranteed by CMRR test MAX UNITS VCC 0.9 V ±5 mV µV / ° C ±0.25 MAX4432/MAX4433 mV IB 11 30 µA Input Offset Current IOS 0.35 5 µA Input Resistance RIN Input Bias Current Common-Mode Rejection Ratio Open-Loop Gain Output Voltage Swing Output Current Output Short-Circuit Current Power-Supply Rejection Ratio CMRR AVOL 12k Common mode (VEE + 2.5V ≤ VCM ≤ VCC - 0.9V) 1M VEE + 2.5V ≤ VCM ≤ VCC - 0.9V 100 120 VEE + 2.5 ≤ VOUT ≤ VCC - 0.9V; RL = 10kΩ to ground 115 125 VEE + 2.5 ≤ VOUT ≤ VCC - 0.9V; RL = 500Ω to ground 110 125 Ω dB dB RL = 10kΩ to ground VEE + 2.5 VCC 0.25 RL = 500Ω to ground VEE + 2.6 VCC 0.6 IOUT RL = 20Ω to ground ±30 ISC Sinking or sourcing PSRR- VEE = -5.5V to -4.5V PSRR+ VCC = +4.5V to +5.5V VOUT Operating Supply Voltage Range VS Quiescent Supply Current (per amplifier) IS 2 Differential (-10mV ≤ VIN ≤ +10mV) V Guaranteed by PSRR test 75 ±60 mA ±100 mA 95 dB ±4.5 11 _______________________________________________________________________________________ ±5.5 V 13.5 mA Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps (VCC = +5V, VEE = -5V, RL = 500Ω, VCM = 0, AVCL = +1, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS VOUT = 100mVp-p, MAX4430/MAX4432 Small-Signal -3dB Bandwidth Large-Signal -3dB Bandwidth Bandwidth for 0.1dB Flatness Slew Rate BWSS BWLS BW0.1dB MIN TYP tR, tF Settling Time to 16 Bit (0.0015%) tS UNITS 180 MHz VOUT = 100mVp-p, MAX4431/MAX4433 (AVCL = +2) 215 VOUT = 1Vp-p, MAX4430/MAX4432 45 VOUT = 2Vp-p, MAX4430/MAX4432 32 MHz VOUT = 2Vp-p, MAX4431/MAX4433 (AVCL = +2) 40 VOUT = 4Vp-p, MAX4431/MAX4433 (AVCL = +2) 20 VOUT = 100mVp-p, MAX4430/MAX4432 12 MHz VOUT = 100mVp-p, MAX4431/MAX4433 (AVCL = +2) 80 VOUT = 2V step, MAX4430/MAX4432 100 VOUT = 2V step, MAX4431/MAX4433 (AVCL = +2) 145 VOUT = 2V step 20 VOUT = 4V step 40 VOUT = 0 to 2V step, MAX4430/MAX4432 37 VOUT = 0 to 2V step, MAX4431/MAX4433 (AVCL = +2) 63 VOUT = 0 to 4V step, MAX4430/MAX4432 56 VOUT = 0 to 4V step, MAX4431/MAX4433 (AVCL = +2) 140 V/µs SR Rise/Fall Time MAX ns ns _______________________________________________________________________________________ 3 MAX4430–MAX4433 AC ELECTRICAL CHARACTERISTICS MAX4430–MAX4433 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps AC ELECTRICAL CHARACTERISTICS (continued) (VCC = +5V, VEE = -5V, RL = 500Ω, VCM = 0, AVCL = +1, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP UNITS Output “Glitch” Settling to 16-Bit (0.0015%) 5pF load; CL charged from 0 to 4V 24 ns Output Overload Recovery Time 50% overdrive, settling to 10% accuracy 95 ns AC Common-Mode Rejection Ratio f = 100kHz -84 dB AC Power-Supply Rejection Ratio f = 100kHz -77 dB VOUT = 2Vp-p centered at 0V, fC = 100kHz -110 VOUT = 2Vp-p centered at 0V, fC = 1MHz -105 VOUT = 4Vp-p centered at 0V, fC = 100kHz -105 VOUT = 4Vp-p centered at 0V, fC = 1MHz -103 VOUT = 2Vp-p centered at 1V, fC = 100kHz -112 VOUT = 2Vp-p centered at 1V, fC = 1MHz -107 VOUT = 4Vp-p centered at 2V, fC = 100kHz -106 VOUT = 4Vp-p centered at 2V, fC = 1MHz -100 VOUT = 4Vp-p centered at 2V, fC = 1MHz (RL = 1kΩ) -99 VOUT = 4Vp-p centered at 2V, fC = 1MHz (RL = 10kΩ) -100 Spurious-Free Dynamic Range SFDR dBc Input Noise Voltage Density en f = 100kHz 2.8 nV/√Hz Input Noise Current Density in f = 100kHz 1.8 pA/√Hz 2.5 pF 47 pF Input Capacitance CIN Maximum Capacitive Load Without Sustained Oscillations Output Impedance Crosstalk ZOUT f = 1MHz MAX4432/MAX4433 fC = 1MHz 0.2 Ω -125 dB Note 2: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design. 4 MAX _______________________________________________________________________________________ Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps 2 0.6 0 0.2 -2 0 -0.2 -3 -3 -0.4 -4 -4 -0.6 -5 -5 -0.8 -6 -6 1M 100M -1.0 1M 1G 10M 100M 1M 1G 100M 1G FREQUENCY (Hz) MAX4431/MAX4433 GAIN FLATNESS vs. FREQUENCY (AVCL = +2V/V) MAX4430/MAX4432 LARGE-SIGNAL GAIN vs. FREQUENCY (AVCL = +1V/V) MAX4431/MAX4433 LARGE-SIGNAL GAIN vs. FREQUENCY (AVCL = +2V/V) 4 0.3 3 2 1 0.1 0 GAIN (dB) 0.2 0 -0.1 1Vp-p 4 2 1 -1 -2 0 -1 -2 -0.2 -3 -3 -0.3 -4 -4 -0.4 -5 -5 -0.5 -6 10M 100M -6 1M 1G 1Vp-p 3 GAIN (dB) 100mVp-p MAX4430 toc06 FREQUENCY (Hz) 0.4 10M 100M 1G 1M 10M 100M FREQUENCY (Hz) FREQUENCY (Hz) MAX4430/MAX4432 SMALL-SIGNAL PULSE RESPONSE MAX4431/MAX4433 SMALL-SIGNAL PULSE RESPONSE MAX4430/MAX4432 LARGE-SIGNAL PULSE RESPONSE AVCL = +1V/V INPUT 50mV/div OUTPUT 50mV/div AVCL = +2V/V INPUT 25mV/div 1G AVCL = +1V/V INPUT 500mV/V OUTPUT 500mV/div OUTPUT 50mV/div 10ns/div MAX4430 toc08 FREQUENCY (Hz) MAX4430 toc07 1M 10M FREQUENCY (Hz) MAX4430 toc05 0.5 10M MAX4430 toc09 -2 GAIN (dB) 0.4 0 GAIN (dB) 1 -1 100mVp-p 0.8 1 -1 MAX4430 toc03 100mVp-p 3 MAX4430 toc04 GAIN (dB) 1.0 MAX4430 toc02 100mVp-p 2 GAIN (dB) 4 MAX4430 toc01 4 3 MAX4430/MAX4432 GAIN FLATNESS vs. FREQUENCY (AVCL = +1V/V) MAX4431/MAX4433 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +2V/V) MAX4430/MAX4432 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +1V/V) 10ns/div 10ns/div _______________________________________________________________________________________ 5 MAX4430–MAX4433 Typical Operating Characteristics (VCC = +5V, VEE = -5V, RL = 500Ω, CL = 0pF, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 500Ω, CL = 0pF, TA = +25°C, unless otherwise noted.) MAX4431/MAX4433 SMALL-SIGNAL PULSE RESPONSE INPUT 250mV/div OUTPUT 500mV/div AVCL = +1V/V CL = 10pF INPUT 50mV/V MAX4430 toc11 AVCL = +2V/V MAX4430 toc10 MAX4430/MAX4432 SMALL-SIGNAL PULSE RESPONSE AVCL = +1V/V CL = 15pF INPUT 25mV/div OUTPUT 50mV/div OUTPUT 50mV/div 10ns/div 10ns/div 10ns/div MAX4431/MAX4433 LARGE-SIGNAL PULSE RESPONSE OUTPUT 500mV/div OUTPUT 500mV/div 0 MAX4430 toc15 INPUT 250mV/div MAX4430 toc14 AVCL = +1V/V CL = 30pF POWER-SUPPLY REJECTION RATIO vs. FREQUENCY -10 POWER-SUPPLY REJECTION (dB) INPUT 500mV/div MAX4430 toc13 MAX4430/MAX4432 LARGE-SIGNAL PULSE RESPONSE AVCL = +1V/V CL = 20pF MAX4430toc12 MAX4431/MAX4433 LARGE-SIGNAL PULSE RESPONSE -20 -30 -40 -50 -60 -70 -80 -90 -100 10ns/div 10ns/div 0.1 1 10 100 FREQUENCY (MHz) OUTPUT ISOLATION RESISTANCE vs. CAPACITIVE LOAD -40 -50 -60 -70 -80 10 MAX4430 8 6 MAX4431 4 OUTPUT IMPEDANCE (Ω) -30 100 MAX4430 toc17 -20 12 OUTPUT ISOLATION RESISTANCE (Ω) MAX4430 toc16 0 -10 CLOSED-LOOP OUTPUT IMPEDANCE vs. FREQUENCY MAX4430 toc18 COMMON-MODE REJECTION RATIO vs. FREQUENCY COMMON-MODE REJECTION (dB) MAX4430–MAX4433 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps 10 1 0.1 2 -90 0 -100 0.1 1 10 FREQUENCY (MHz) 6 100 0.01 0 25 50 75 100 125 150 175 200 CAPACITIVE LOAD (pF) 0.1 1 10 FREQUENCY (MHz) _______________________________________________________________________________________ 100 1000 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps HARMONIC DISTORTION vs. FREQUENCY 0 0 -45 -40 PHASE -80 -90 -120 -135 -160 -180 -225 1000 -200 10 100 3RD HARMONIC 0.1 10 1 FREQUENCY (MHz) HARMONIC DISTORTION vs. RESISTIVE LOAD INPUT VOLTAGE NOISE vs. FREQUENCY 800 3 4 1000 11.5 100 10 10.5 10.0 9.5 9.0 1 1000 10 100 1k 10k 100k 1M 10M -50 -25 0 25 50 INPUT BIAS CURRENT vs. TEMPERATURE OFFSET VOLTAGE vs. TEMPERATURE VOLTAGE SWING vs. TEMPERATURE 10.5 10.0 1.5 1.0 VOS+ 0.5 0 -0.5 -1.0 -1.5 VOS- -2.0 -2.5 9.5 50 TEMPERATURE (°C) 75 100 75 100 MAX4430 toc27 2.0 FROM NEGATIVE RAIL 1.5 1.0 0.5 -3.0 9.0 100 2.5 VOLTAGE SWING (V) OFFSET VOLTAGE (mV) 2.5 2.0 75 3.0 MAX4430 toc26 3.0 MAX4430 toc25 11.0 25 6 11.0 TEMPERATURE (°C) 0 5 12.0 FREQUENCY (Hz) 11.5 -25 2 1 RESISTIVE LOAD (Ω) 12.0 -50 3RD HARMONIC QUIESCENT CURRENT PER AMPLIFIER vs. TEMPERATURE 1 600 400 2ND HARMONIC OUTPUT SWING (Vp-p) 3RD HARMONIC 200 f = 1MHz 0 QUIESCENT CURRENT (mA) 2ND HARMONIC 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 100 MAX4430 toc23 f = 1MHz 0 QUIESCENT CURRENT (µA) 2ND HARMONIC FREQUENCY (MHz) VOLTAGE NOISE (nV/√Hz) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 1 MAX4430 toc22 HARMONIC DISTORTION (dB) 0.1 PHASE (°) GAIN (dB) 45 GAIN 40 HARMONIC DISTORTION (dB) 90 VOUT = 2Vp-p MAX4430 toc24 80 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 HARMONIC DISTORTION (dB) 135 AV = 1000 MAX4430 toc20 MAX4430 toc19 120 HARMONIC DISTORTION vs. OUTPUT SWING MAX4430 toc21 MAX4430 GAIN AND PHASE vs. FREQUENCY FROM POSITIVE RAIL 0 -50 -25 0 25 50 TEMPERATURE (°C) 75 100 -50 -25 0 25 50 TEMPERATURE (°C) _______________________________________________________________________________________ 7 MAX4430–MAX4433 Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 500Ω, CL = 0pF, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 500Ω, CL = 0pF, TA = +25°C, unless otherwise noted.) VOLTAGE SWING vs. TEMPERATURE MAX4432/MAX4433 CROSSTALK vs. FREQUENCY RL = 10kΩ 2.5 MAX4430 toc29 0 MAX4430 toc28 3.0 -20 -40 2.0 FROM NEGATIVE RAIL GAIN (dB) VOLTAGE SWING (V) MAX4430–MAX4433 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps 1.5 1.0 -60 -80 -100 0.5 -120 FROM POSITIVE RAIL -140 0 -50 -25 0 25 50 75 0.1 100 1 10 100 1000 FREQUENCY (MHz) TEMPERATURE (°C) Pin Description PIN MAX4430/MAX4431 NAME FUNCTION 5 SOT23 8 SO 1 6 OUT Output 2 4 VEE Negative Power Supply 3 3 IN+ Noninverting Input 4 2 IN- Inverting Input 5 7 VCC Positive Power Supply — 1, 5, 8 N.C. No Connection. Not internally connected. PIN MAX4432/MAX4433 NAME FUNCTION 8 SO/8 µMAX 8 1 OUTA Amplifier A Output 2 INA- Amplifier A Inverting Input 3 INA+ Amplifier A Noninverting Input 4 VEE 5 INB+ Amplifier B Noninverting Input 6 INB- Amplifier B Inverting Input 7 OUTB 8 VCC Negative Power Supply Amplifier B Output Positive Power Supply _______________________________________________________________________________________ Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps The MAX4430–MAX4433 are wide-bandwidth, ultra-lowdistortion, voltage-feedback amplifiers. The MAX4430/ MAX4432 are internally compensated for unity gain. The MAX4431/MAX4433 are internally compensated for gains of +2V/V or greater. These amplifiers have ultra-fast 37ns (MAX4430/ MAX4432) 16-bit settling times, 100dB SFDR at 1MHz, and 4Vp-p output swing with minimum 110dB openloop gain. High-Speed ADC Input Driver Application The MAX4430–MAX4433 op amps are ideal for driving high-speed 14- to 16-bit ADCs. In most cases, these ADCs operate with a charge balance scheme, with capacitive loads internally switched on and off from the input. The driver used must withstand these changing capacitive loads while holding the signal amplitude stability consistent with the ADC’s resolution and, at the same time, have a frequency response compatible with the sampling speed of the ADC (Figure 1). Inverting and Noninverting Configurations The circuits typically used for the inverting and noninverting configurations of the MAX4430–MAX4433 are shown in Figures 2a and 2b. The minimum unconditionally stable gain values are 1 for the MAX4430/MAX4432 and 2 for the MAX4431/MAX4433. Use care in selecting the value for the resistor marked RS in both circuits. From dynamic stability considerations (based on the part’s frequency response and the input capacitance of the MAX4430–MAX4433), the maximum recommended value for RS is 500Ω. In general, lower RS values will yield a higher bandwidth and better dynamic stability, at the cost of higher power consumption, higher power dissipation in the IC, and reduced output drive availability. For a minimum RS value, take into consideration that the current indicated as IF is supplied by the output stage and must be discounted from the maximum output current to calculate the maximum current available to the load. IF can be found using the following equation: IF = VIN(MAX) / RS If DC thermal stability is an important design concern, the Thevenin resistance seen by both inputs at DC must be balanced. This includes the resistance of the signal source and termination resistors if the amplifier signal input is fed from a transmission line. The capacitance associated with the feedback resistors must also be considered as a possible limitation to the available bandwidth or to the dynamic stability. Only resistors with small parallel capacitance specifications should be considered. Applications Information Layout and Power-Supply Bypassing +VCC HIGH-SPEED 14/16-BIT ADC -VEE Figure 1. Typical Application Circuit The MAX4430–MAX4433 have wide bandwidth and consequently require careful board layout. To realize the full AC performance of these high-speed amplifiers, pay careful attention to power-supply bypassing and board layout. The PC board should have a large lowimpedance ground plane that is as free of voids as possible. Do not use commercial breadboards. Keep signal lines as short and straight as possible. Observe high-frequency bypassing techniques to maintain the RF VIN RS VOUT IF VIN V R A = 1 + F = OUT VIN RS IF VOUT A= RS RF V - RF = OUT VIN RS RB Figure 2a. Noninverting Configuration Figure 2b. Inverting Configuration _______________________________________________________________________________________ 9 MAX4430–MAX4433 Detailed Description MAX4430–MAX4433 Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps Ordering Information (continued) PART RISO VOUT VIN CL RL TEMP. RANGE o PIN-PACKAGE o MAX4431EUK-T -40 C to +85 C 5 SOT23-5 MAX4431ESA -40oC to +85oC 8 SO MAX4432EUA -40oC to +85oC 8 µMAX o o MAX4432ESA -40 C to +85 C MAX4433EUA -40oC to +85oC 8 SO 8 µMAX MAX4433ESA -40oC to +85oC 8 SO Pin Configurations (continued) MAX4430 TOP VIEW Figure 3. Capacitive-Load Driving Circuit amplifier’s accuracy and stability. In general, use surface-mount components since they have shorter bodies and lower parasitic reactance. This will result in improved performance over through-hole components. The bypass capacitors should include 1nF and/or 0.1µF surface-mount ceramic capacitors between each supply pin and the ground plane, located as close to the package as possible. Place a 10µF tantalum capacitor at the power supply’s point of entry to the PC board to ensure the integrity of the incoming supplies. Input termination resistors and output back-termination resistors, if used, should be surface-mount types and should be placed as close to the IC pins as possible. N.C. 1 8 N.C. IN- 2 7 VCC IN+ 3 6 OUT VEE 4 5 N.C. MAX4430 MAX4431 SO MAX4432 MAX4433 OUTA 1 8 VCC INA- 2 7 OUTB INA+ 3 6 INB- VEE 4 5 INB+ µMAX/SO Driving Capacitive Loads MAX4430–MAX4433 can drive capacitive loads. However, excessive capacitive loads may cause ringing or instability at the output as phase margin is reduced. Adding a small isolation resistor in series with the output capacitive load helps reduce the ringing but slightly increases gain error (see Typical Operating Characteristics and Figure 3). 10 Chip Information TRANSISTOR COUNT: MAX4430/MAX4431: 103 MAX4432/MAX4433: 248 ______________________________________________________________________________________ Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps SOT5L.EPS 8LUMAXD.EPS ______________________________________________________________________________________ 11 MAX4430–MAX4433 Package Information Dual-Supply, 180MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps SOICN.EPS MAX4430–MAX4433 Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.