19-1338; Rev 3; 3/07 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers ____________________________Features The MAX4200-MAX4205 are ultra-high-speed, openloop buffers featuring high slew rate, high output current, low noise, and excellent capacitive-load-driving capability. The MAX4200/MAX4201/MAX4202 are single buffers, while the MAX4203/MAX4204/MAX4205 are dual buffers. The MAX4201/MAX4204 have integrated 50 termination resistors, making them ideal for driving 50 transmission lines. The MAX4202/MAX4205 include 75 back-termination resistors for driving 75 transmission lines. The MAX4200/MAX4203 have no internal termination resistors. The MAX4200-MAX4205 use a proprietary architecture to achieve up to 780MHz -3dB bandwidth, 280MHz 0.1dB gain flatness, 4200V/s slew rate, and 90mA output current drive capability. They operate from 5V supplies and draw only 2.2mA of quiescent current. These features, along with low-noise performance, make these buffers suitable for driving high-speed analog-todigital converter (ADC) inputs or for data-communications applications. 2.2mA Supply Current ________________________Applications High Speed 780MHz -3dB Bandwidth (MAX4201/MAX4202) 280MHz 0.1dB Gain Flatness (MAX4201/MAX4202) 4200V/s Slew Rate Low 2.1nV/Hz Voltage-Noise Density Low 0.8pA/Hz Current-Noise Density High 90mA Output Drive (MAX4200/MAX4203) Excellent Capacitive-Load-Driving Capability Available in Space-Saving SOT23 or MAX(R) Packages _______________Ordering Information PART TOP MARK PIN-PACKAGE MAX4200ESA 8 SO MAX4200EUK-T 5 SOT23-5 PKG CODE -- S8-2 AABZ U5-1 MAX4201ESA 8 SO High-Speed DAC Buffers MAX4201EUK-T 5 SOT23-5 Wireless LANs MAX4202ESA 8 SO MAX4202EUK-T 5 SOT23-5 MAX4203ESA 8 SO -- S8-2 High-Speed ADC Input Buffers MAX4203EUA-T 8 MAX-8 -- U8-1 IF/Communications Systems MAX4204ESA 8 SO -- S8-2 MAX4204EUA-T 8 MAX-8 -- U8-1 MAX4205ESA 8 SO -- S8-2 MAX4205EUA-T 8 MAX-8 -- U8-1 Digital-Transmission Line Drivers ___________________________Selector Guide PART INTERNAL NO. OF OUTPUT BUFFERS TERMINATION () -- S8-2 ABAA U5-1 -- S8-2 ABAB U5-1 Note: All devices are specified over the -40C to +85C operating temperature range. PIN-PACKAGE MAX4200 1 -- 8 SO, 5 SOT23 MAX4201 1 50 8 SO, 5 SOT23 MAX4202 1 75 8 SO, 5 SOT23 MAX4203 2 -- 8 SO/MAX MAX4204 2 50 8 SO/MAX MAX4205 2 75 8 SO/MAX Pin Configurations appear at end of data sheet. ___________Typical Application Circuit RT* 50 50 CABLE IN OUT MAX4201 *RL = RT + REXT REXT* 50 COAXIAL CABLE DRIVER MAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX4200-MAX4205 ________________General Description MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to VEE)................................................+12V Voltage on Any Pin to GND..............(VEE - 0.3V) to (VCC + 0.3V) Output Short-Circuit Duration to GND........................Continuous Continuous Power Dissipation (TA = +70C) 5-Pin SOT23 (derate 7.1mW/C above +70C).............571mW 8-Pin MAX (derate 4.1mW/C above +70C) ..............330mW 8-Pin SO (derate 5.9mW/C above +70C)...................471mW Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 = , TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER SYMBOL CONDITIONS Operating Supply Voltage VS Guaranteed by PSR test Quiescent Supply Current IS Per buffer, VIN = 0V Input Offset Voltage Input Offset Voltage Drift Input Resistance Voltage Gain Power-Supply Rejection Output Resistance Output Current Short-Circuit Output Current UNITS 5.5 V 2.2 4 mA 15 VIN = 0V 1 VIN = 0V 20 V/C MAX4203/MAX4204/MAX4205 0.4 mV RIN (Note 1) 500 AV -3.0V VOUT 3.0V IB PSR ROUT IOUT ISC 0.8 10 0.9 0.96 1.1 MAX4201/MAX4204, REXT = 50 0.42 0.50 0.58 MAX4202/MAX4205, REXT = 75 0.41 0.50 0.59 55 72 VS = 4V to 5.5V f = DC RL = 30 Sinking or sourcing MAX4200/MAX4203 8 MAX4201/MAX4204 50 MAX4202/MAX4205 75 MAX4200/MAX4203 90 MAX4201/MAX4204 52 MAX4202/MAX4205 44 MAX4200/MAX4203 150 MAX4201/MAX4204 90 VOUT mV A k MAX4200/MAX4203, REXT = 150 MAX4200/MAX4203 2 MAX VOS MAX4202/MAX4205 Output-Voltage Swing TYP 4 TCVOS Input Offset Voltage Matching Input Bias Current MIN V/V dB mA mA 75 RL = 150 3.3 3.8 RL = 100 3.2 3.7 RL = 37.5 3.3 MAX4201/MAX4204 RL = 50 1.9 2.1 MAX4202/MAX4205 RL = 75 2.0 2.3 _______________________________________________________________________________________ V Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers (VCC = +5V, VEE = -5V, RL = 100 for MAX4200/MAX4201/MAX4203/MAX4204, RL = 150 for MAX4202/MAX4205, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) PARAMETER -3dB Bandwidth SYMBOL BW(-3dB) 0.1dB Bandwidth BW(0.1dB) Full-Power Bandwidth Slew Rate FPBW SR CONDITIONS VOUT 100mVRMS VOUT 100mVRMS VOUT 2VP-P MIN 660 MAX4201/MAX4202 780 MAX4203 530 MAX4204/MAX4205 720 MAX4200 220 MAX4201/MAX4202 280 MAX4203 130 MAX4204/MAX4205 230 MAX4200/MAX4201/MAX4202 490 MAX4203/MAX4204/MAX4205 310 VOUT = 2V step Group Delay Time Settling Time to 0.1% tS VOUT = 2V step MAX4200/MAX4201/ MAX4202 Spurious-Free Dynamic Range SFDR VOUT = 2VP-P MAX4203/MAX4204/ MAX4205 Harmonic Distortion TYP MAX4200 UNITS MHz MHz MHz 4200 V/s 405 ps 12 ns f = 5MHz -48 f = 20MHz -45 f = 100MHz -34 f = 5MHz -47 f = 20MHz -44 f = 100MHz -32 MAX4200/MAX4201/ MAX4202, f = 500kHz, VOUT = 2VP-P Second harmonic -72 Third harmonic -48 Total harmonic -48 MAX4203/MAX4204/| MAX4205, f = 500kHz, VOUT = 2VP-P Second harmonic -83 Third harmonic -47 Total harmonic -47 HD MAX dBc dBc Differential Gain Error DG NTSC, RL = 150 1.3 % Differential Phase Error DP NTSC, RL = 150 0.15 degrees Input Voltage-Noise Density en f = 1MHz 2.1 nV/Hz in f = 1MHz 0.8 pA/Hz 2 pF 6 Input Current-Noise Density Input Capacitance CIN Output Impedance ZOUT f = 10MHz XTALK VOUT = 2Vp-p VOUT = 2VP-P Amplifier Crosstalk f = 10MHz -87 f = 100MHz -65 dB Note 1: Tested with no load; increasing load will decrease input impedance. _______________________________________________________________________________________ 3 MAX4200-MAX4205 AC ELECTRICAL CHARACTERISTICS __________________________________________Typical Operating Characteristics (VCC = +5V, VEE = -5V, RL = 100 for MAX4200/MAX4201/MAX4203/MAX4204, R L = 150 for MAX4202/MAX4205, unless otherwise noted.) MAX4201/MAX4202 SMALL-SIGNAL GAIN vs. FREQUENCY 0 -1 -2 -3 0 -1 -2 -3 0 -1 -2 -3 -4 -4 -4 -5 -5 -6 100k 1M 10M 100M -6 100k 1G 1M 10M 100M 1G 100k 1M 10M 100M 1G FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) MAX4203 SMALL-SIGNAL GAIN vs. FREQUENCY MAX4204/MAX4205 SMALL-SIGNAL GAIN vs. FREQUENCY MAX4203/MAX4204/MAX4205 LARGE-SIGNAL GAIN vs. FREQUENCY 0 -1 -2 -3 1 0 -1 -2 -3 2 1 0 -1 -2 -3 -4 -4 -4 -5 -5 -5 -6 -6 -6 1M 10M 100M 1G 100k 1M 10M 100M 1G FREQUENCY (Hz) GROUP DELAY vs. FREQUENCY POWER-SUPPLY REJECTION vs. FREQUENCY 0 MAX4200/25-07 3 -10 -20 -30 1 -40 PSR (dB) 2 0 -1 8000 7000 -50 5000 4000 3000 -70 -3 -80 2000 -4 -90 1000 0 -100 1M 10M 100M FREQUENCY (Hz) 1G 10G 1G 6000 -2 100k 100M SLEW RATE vs. OUTPUT VOLTAGE -60 -5 10M 9000 SLEW RATE (V/s) 4 1M FREQUENCY (Hz) FREQUENCY (Hz) 5 100k 10G MAX4200/25-08 100k VOUT = 2VP-P 3 MAX4200/4205-09 1 4 MAX4200/25-06 2 NORMALIZED GAIN (dB) 2 3 VOUT = 100mVP-P NORMALIZED GAIN (dB) VOUT = 100mVP-P MAX4200/25-05 4 MAX4200/25-04 4 3 NORMALIZED GAIN (dB) 2 1 -5 -6 4 1 VOUT = 2VP-P 3 NORMALIZED GAIN (dB) 2 NORMALIZED GAIN (dB) 1 VOUT = 100mVP-P 3 4 MAX4200/25-02 VOUT = 100mVP-P 2 NORMALIZED GAIN (dB) 4 MAX4200/25-01 4 3 MAX4200/MAX4201/MAX4202 LARGE-SIGNAL GAIN vs. FREQUENCY MAX4200/25-03 MAX4200 SMALL-SIGNAL GAIN vs. FREQUENCY GROUP DELAY (ns) MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers 100k 1M 10M 100M FREQUENCY (Hz) 1G 10G 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE (Vp-p) _______________________________________________________________________________________ Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers -30 -40 THIRD HARMONIC -50 -60 -70 SECOND HARMONIC -80 -20 -30 -40 -60 -70 -90 -100 10M 10 -80 -100 1M THIRD HARMONIC -50 100 MAX4200/4205-12 -10 -90 100k VOUT = 2Vp-p OUTPUT IMPEDANCE () -20 0 HARMONIC DISTORTION (dBc) VIN = 2Vp-p SECOND HARMONIC 1 100k 100M 1M 10M 100M 100k 1M 10M 100M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) MAX4201/MAX4204 OUTPUT IMPEDANCE vs. FREQUENCY MAX4202/MAX4205 OUTPUT IMPEDANCE vs. FREQUENCY MAX4203/MAX4204/MAX4205 CROSSTALK vs. FREQUENCY 0 1G MAX4200/4205-15 100 -10 -20 -30 CROSSTALK (dB) OUTPUT IMPEDANCE () OUTPUT IMPEDANCE () MAX4200/4205-13 100 MAX4200/4205-14 -10 HARMONIC DISTORTION (dBc) MAX4200/4205-10 0 MAX4200/MAX4203 OUTPUT IMPEDANCE vs. FREQUENCY MAX4200/4205-11 MAX4203/MAX4204/MAX4205 HARMONIC DISTORTION vs. FREQUENCY MAX4200/MAX4201/MAX4202 HARMONIC DISTORTION vs. FREQUENCY -40 -50 -60 -70 -80 -90 10 1M 10M 100M 1G 100k 1M 10M 100M 1M 10M 100M 1G FREQUENCY (Hz) INPUT VOLTAGE-NOISE DENSITY vs. FREQUENCY INPUT CURRENT-NOISE DENSITY vs. FREQUENCY DIFFERENTIAL GAIN AND PHASE (RL = 150) 10 100 1k 10k 100k FREQUENCY (Hz) 1M 10M 1.0 0.5 0 -0.5 0 DIFF PHASE (deg) 1.0 0.1 1 1.5 10G MAX4200/4205-18 MAX4200/4205-17 CURRENT NOISE DENSITY (pA/Hz) MAX4200/4205-16 10 DIFF GAIN (%) FREQUENCY (Hz) 10 1 100k 1G FREQUENCY (Hz) 100 VOLTAGE NOISE DENSITY (nV/Hz) -100 10 100k 100 0.20 0.15 0.10 0.05 0 -0.05 1 10 100 1k 10k 100k FREQUENCY (Hz) 1M 10M 0 100 IRE _______________________________________________________________________________________ 5 MAX4200-MAX4205 _________________________________Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 100 for MAX4200/MAX4201/MAX4203/MAX4204, R L = 150 for MAX4202/MAX4205, unless otherwise noted.) _________________________________Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 100 for MAX4200/MAX4201/MAX4203/MAX4204, R L = 150 for MAX4202/MAX4205, unless otherwise noted.) OUTPUT VOLTAGE SWING vs. EXTERNAL LOAD RESISTANCE GAIN ERROR vs. INPUT VOLTAGE 10 8 6 RL = 100 4 MAX4200/4203 GND OUT GND MAX4201/4204 7 6 VOLTAGE 50mV/div 5 4 MAX4202/4205 3 2 1 0 -5 -4 -3 -2 -1 0 1 2 3 4 0 5 50 100 150 200 250 300 350 400 INPUT VOLTAGE (V) EXTERNAL LOAD RESISTANCE () MAX4200/MAX4203 SMALL-SIGNAL PULSE RESPONSE MAX4201/MAX4202/MAX4204/MAX4205 SMALL-SIGNAL PULSE RESPONSE MAX4200-22 IN GND LARGE-SIGNAL PULSE RESPONSE IN MAX4200-24 GND VOLTAGE 50mV/div OUT GND CLOAD = 15pF TIME (5ns/div) MAX4200-23 VOLTAGE 50mV/div IN GND OUT GND VOLTAGE 1V/div OUT GND CLOAD = 22pF TIME (5ns/div) 6 IN 8 RL = 150 2 MAX4200-20 9 OUTPUT VOLTAGE SWING (Vp-p) 12 SMALL-SIGNAL PULSE RESPONSE MAX4200-21 10 MAX4200-19 14 GAIN ERROR (%) MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers TIME (5ns/div) TIME (5ns/div) _______________________________________________________________________________________ Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers SUPPLY CURRENT (PER BUFFER) vs. TEMPERATURE MAX4201/MAX4202/MAX4204/MAX4205 LARGE-SIGNAL PULSE RESPONSE MAX4200-26 MAX4200-25 IN GND VOLTAGE 1V/div VOLTAGE 1V/div OUT OUT GND 3.5 GND GND SUPPLY CURRENT (mA) IN 4.0 MAX4200-27 MAX4200/MAX4203 LARGE-SIGNAL PULSE RESPONSE 3.0 2.5 2.0 1.5 CLOAD = 22pF CLOAD = 15pF 1.0 -40 TIME (5ns/div) TIME (5ns/div) -15 10 35 60 85 TEMPERATURE (C) INPUT OFFSET VOLTAGE vs. TEMPERATURE 1 0 -1 -2 3 2 1 0 -1 -2 -3 -3 -4 -4 -5 -15 10 35 TEMPERATURE (C) 60 85 RL = 100 3.6 3.4 3.2 -5 -40 RL = 150 3.8 VOLTAGE SWING (Vp-p) 2 MAX4200-30 4 INPUT BIAS CURRENT (A) 3 4.0 MAX4200-29 4 INPUT OFFSET VOLTAGE (mV) 5 MAX4200-28 5 MAX4200/MAX4203 OUTPUT VOLTAGE SWING vs. TEMPERATURE INPUT BIAS CURRENT vs. TEMPERATURE 3.0 -40 -15 10 35 TEMPERATURE (C) 60 85 -40 -15 10 35 60 85 TEMPERATURE (C) _______________________________________________________________________________________ 7 MAX4200-MAX4205 _________________________________Typical Operating Characteristics (continued) (VCC = +5V, VEE = -5V, RL = 100 for MAX4200/MAX4201/MAX4203/MAX4204, R L = 150 for MAX4202/MAX4205, unless otherwise noted.) MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers ______________________________________________________________Pin Description PIN MAX4200/MAX4201/MAX4202 MAX4203 MAX4204 MAX4205 FUNCTION SOT23-5 SO 1 1, 2, 5, 8 -- N.C. 3 3 -- IN Buffer Input -- -- 1 IN1 Buffer 1 Input -- -- 2 OUT1 2 4 -- VEE Negative Power Supply -- -- 3 VEE1 Negative Power Supply for Buffer 1 -- -- 4 VEE2 Negative Power Supply for Buffer 2 -- -- 5 IN2 Buffer 2 Input -- -- 6 OUT2 Buffer 2 Output 5 6 -- OUT Buffer Output 4 7 -- VCC Positive Power Supply -- -- 7 VCC2 Positive Power Supply for Buffer 2 -- -- 8 VCC1 Positive Power Supply for Buffer 1 SO/MAX _______________Detailed Description The MAX4200-MAX4205 wide-band, open-loop buffers feature high slew rates, high output current, low 2.1nVHz voltage-noise density, and excellent capacitive-load-driving capability. The MAX4200/MAX4203 are single/dual buffers with up to 660MHz bandwidth, 230MHz 0.1dB gain flatness, and a 4200V/s slew rate. The MAX4201/MAX4204 single/dual buffers with integrated 50 output termination resistors, up to 780MHz bandwidth, 280MHz gain flatness, and a 4200V/s slew rate, are ideally suited for driving high-speed signals over 50 cables. The MAX4202/MAX4205 provide bandwidths up to 720MHz, 230MHz gain flatness, 4200V/s slew rate, and integrated 75 output termination resistors for driving 75 cables. With an open-loop gain that is slightly less than +1V/V, these devices do not have to be compensated with the internal dominant pole (and its associated phase shift) that is present in voltage-feedback devices. This feature allows the MAX4200-MAX4205 to achieve a nearly constant group delay time of 405ps over their full frequency range, making them well suited for a variety of RF and IF signal-processing applications. 8 NAME No Connection. Not Internally Connected Buffer 1 Output These buffers operate with 5V supplies and consume only 2.2mA of quiescent supply current per buffer while providing up to 90mA of output current drive capability. __________Applications Information Power Supplies The MAX4200-MAX4205 operate with dual supplies from 4V to 5.5V. Both V CC and V EE should be bypassed to the ground plane with a 0.1F capacitor located as close to the device pin as possible. Layout Techniques Maxim recommends using microstrip and stripline techniques to obtain full bandwidth. To ensure that the PC board does not degrade the amplifier's performance, design it for a frequency greater than 6GHz. Pay careful attention to inputs and outputs to avoid large parasitic capacitance. Whether or not you use a constant-impedance board, observe the following guidelines when designing the board: * Do not use wire-wrap boards, because they are too inductive. * Do not use IC sockets, because they increase parasitic capacitance and inductance. _______________________________________________________________________________________ Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers * Use a PC board with at least two layers; it should be as free from voids as possible. * Keep signal lines as short and as straight as possible. Do not make 90 turns; round all corners. 50 COAX RT* SOURCE RL 50 MAX42_ _ Input Impedance The MAX4200-MAX4205 input impedance looks like a 500k resistor in parallel with a 2pF capacitor. Since these devices operate without negative feedback, there is no loop gain to transform the input impedance upward, as in closed-loop buffers. As a consequence, the input impedance is directly related to the output impedance. If the output load impedance decreases, the input impedance also decreases. Inductive input sources (such as an unterminated cable) may react with the input capacitance and produce some peaking in the buffer's frequency response. This effect can usually be minimized by using a properly terminated transmission line at the buffer input, as shown in Figure 1. Output Current and Gain Sensitivity The absence of negative feedback means that openloop buffers have no loop gain to reduce their effective output impedance. As a result, open-loop devices usually suffer from decreasing gain as the output current is decreased. The MAX4200-MAX4205 include local feedback around the buffer's class-AB output stage to ensure low output impedance and reduce gain sensitivity to load variations. This feedback also produces demand-driven current bias to the output transistors for 90mA (MAX4200/MAX4203) drive capability that is relatively independent of the output voltage (see Typical Operating Characteristics). Output Capacitive Loading and Stability The MAX4200-MAX4205 provide maximum AC performance with no load capacitance. This is the case when the load is a properly terminated transmission line. However, these devices are designed to drive any load capacitance without oscillating, but with reduced AC performance. Since the MAX4200-MAX4205 operate in an open-loop configuration, there is no negative feedback to be transformed into positive feedback through phase shift introduced by a capacitive load. Therefore, these devices will not oscillate with capacitive loading, unlike similar buffers operating in a closed-loop configuration. However, a capacitive load reacting with the buffer's output impedance can still affect circuit performance. A capacitive load will form a lowpass filter with the buffer's output resistance, thereby limiting system *MAX4201/4202/4204/4205 ONLY Figure 1. Using a Properly Terminated Input Source bandwidth. With higher capacitive loads, bandwidth is dominated by the RC network formed by RT and CL; the bandwidth of the buffer itself is much higher. Also note that the isolation resistor forms a divider that decreases the voltage delivered to the load. Another concern when driving capacitive loads results from the amplifier's output impedance, which looks inductive at high frequency. This inductance forms an L-C resonant circuit with the capacitive load and causes peaking in the buffer's frequency response. Figure 2 shows the frequency response of the MAX4200/MAX4203 under different capacitive loads. To settle out some of the peaking, the output requires an isolation resistor like the one shown in Figure 3. Figure 4 is a plot of the MAX4200/MAX4203 frequency response with capacitive loading and a 10 isolation resistor. In many applications, the output termination resistors included in the MAX4201/MAX4202/ MAX4204/MAX4205 will serve this purpose, reducing component count and board space. Figure 5 shows the MAX4201/MAX4202/ MAX4204/MAX4205 frequency response with capacitive loads of 47pF, 68pF, and 120pF. Coaxial Cable Drivers Coaxial cable and other transmission lines are easily driven when properly terminated at both ends with their characteristic impedance. Driving back-terminated transmission lines essentially eliminates the line's capacitance. The MAX4201/MAX4204, with their integrated 50 output termination resistors, are ideal for driving 50 cables. The MAX4202/MAX4205 include integrated 75 termination resistors for driving 75 cables. Note that the output termination resistor forms a voltage divider with the load resistance, thereby decreasing the amplitude of the signal at the receiving end of the cable by one half (see the Typical Application Circuit). _______________________________________________________________________________________ 9 MAX4200-MAX4205 * Use surface-mount instead of through-hole components for better high-frequency performance. 5 4 VOUT = 100mVP-P MAX4200-FIG02 MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers CL = 47pF CL = 68pF 3 GAIN (dB) 2 RISO CL = 120pF 1 VIN VOUT 0 CL -1 MAX4200 MAX4203 -2 -3 CL = 220pF -4 -5 100k 10M 1M 100M 1G FREQUENCY (Hz) 3 GAIN (dB) 2 CL = 68pF 0 VOUT = 100mVP-P 3 2 CL = 47pF 1 -1 -2 CL = 47pF 1 CL = 68pF 0 -1 CL = 120pF -2 CL = 120pF -3 -3 -4 -4 -5 -5 100k 1M 10M 100M 1G FREQUENCY (Hz) Figure 4. MAX4200/MAX4203 Small-Signal Gain vs. Frequency with Load Capacitance and 10 Isolation Resistor 10 5 4 MAX4200-FIG05 RISO = 10 VOUT = 100mVP-P GAIN (dB) 5 4 Figure 3. Driving a Capacitive Load Through an Isolation Resistor MAX4200-FIG04 Figure 2. MAX4200/MAX4203 Small-Signal Gain vs. Frequency with Load Capacitance and No Isolation Resistor 100k 1M 10M 100M 1G FREQUENCY (Hz) Figure 5. MAX4201/MAX4202/MAX4204/MAX4205 SmallSignal Gain vs. Frequency with Capacitive Load and No External Isolation Resistor ______________________________________________________________________________________ Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers TOP VIEW N.C. 1 5 OUT N.C. 1 N.C. 2 *RT VEE 2 *RT IN 3 IN 3 MAX4203 MAX4204 MAX4205 MAX4200 MAX4201 MAX4202 MAX4200 MAX4201 MAX4202 4 VCC VEE 4 SO SOT23-5 N.C. = NOT INTERNALLY CONNECTED 8 N.C. IN1 1 7 VCC OUT1 2 *RT 6 OUT VEE1 3 5 N.C. VEE2 *RT 4 8 VCC1 7 VCC2 6 OUT2 5 IN2 SO/MAX * RT = 0 (MAX4200/MAX4203) RT = 50 (MAX4201/MAX4204) RT = 75 (MAX4202/MAX4205) ___________________Chip Information TRANSISTOR COUNTS: MAX4200/MAX4201/MAX4202: 33 MAX4203/MAX4204/MAX4205: 67 SUBSTRATE CONNECTED TO VEE ______________________________________________________________________________________ 11 MAX4200-MAX4205 __________________________________________________________Pin Configurations Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers 1.27 VARIATIONS: 1 INCHES TOP VIEW DIM D D D MIN 0.189 0.337 0.386 MAX 0.197 0.344 0.394 MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC D A B e C 0-8 A1 L FRONT VIEW SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, .150" SOIC APPROVAL DOCUMENT CONTROL NO. 21-0041 12 ______________________________________________________________________________________ REV. B 1 1 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers SOT-23 5L .EPS ______________________________________________________________________________________ 13 MAX4200-MAX4205 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 4X S 8 E O0.500.1 8 INCHES DIM A A1 A2 b H c D e E H 0.60.1 1 L 1 0.60.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.014 0.010 0.007 0.005 0.120 0.116 0.0256 BSC 0.120 0.116 0.198 0.188 0.026 0.016 6 0 0.0207 BSC 8LUMAXD.EPS MAX4200-MAX4205 Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95 0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0 6 0.5250 BSC TOP VIEW A1 A2 e A c b L SIDE VIEW FRONT VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, 8L uMAX/uSOP APPROVAL DOCUMENT CONTROL NO. 21-0036 REV. J 1 1 Revision History Pages changed at Rev 3: 1-5, 8, 10-14 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.