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19-2200; Rev 0; 10/01
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps
General Description
The MAX4434/MAX4435 single and MAX4436/MAX4437 dual operational amplifiers feature wide bandwidth, 16bit settling time in 23ns, and low-noise/low-distortion operation. The MAX4434/MAX4436 are compensated for unity-gain stability and have a small-signal -3dB bandwidth of 150MHz. The MAX4435/MAX4437 are compensated for closed-loop gains of +5 or greater and have a small-signal, -3dB bandwidth of 150MHz. The MAX4434-MAX4437 op amps require only 15mA of supply current per amplifier while achieving 115dB open-loop gain. Voltage noise density is a low 2.2nV/Hz and provides 97dB spurious-free dynamic range (SFDR) at 1MHz. These characteristics make these op amps ideal for driving modern, high-speed 14- and 16-bit analog-to-digital converters (ADCs). These high-speed op amps feature wide-output voltage swings and a high-current output drive up to 65mA. Using a voltage feedback architecture, the MAX4434- MAX4437 meet the requirements of many applications that previously depended on current feedback amplifiers. The MAX4434/MAX4435 are available in space-saving 5-pin SOT23 packages and the MAX4436/MAX4437 are available in 8-pin MAX packages.
____________________________Features
o 16-Bit Accurate Settling in 23ns (MAX4435/MAX4437) o 97dB SFDR at 1MHz, 4Vp-p Output o 2.2nV/Hz Input Voltage Noise Density o 100dB (min) Open-Loop Gain o 388V/s Slew Rate (MAX4435/MAX4437) o 65mA High Output Drive o Available in Space-Saving Packages 5-Pin SOT23 (MAX4434/MAX4435) 8-Pin MAX (MAX4436/MAX4437)
MAX4434-MAX4437
Ordering Information
PART MAX4434EUK-T MAX4434ESA MAX4435EUK-T MAX4435ESA MAX4436EUA MAX4436ESA MAX4437EUA MAX4437ESA TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 5 SOT23-5 8 SO 5 SOT23-5 8 SO 8 MAX 8 SO 8 MAX 8 SO
________________________Applications
High-Speed 14- and 16-Bit ADC Preamplifiers Low-Noise Preamplifiers IF/RF Amplifiers Low-Distortion Active Filters High-Performance Receivers Precision Instrumentation
Selector Guide appears at end of data sheet.
Typical Operating Circuit
VCC
Pin Configurations
C1 TOP VIEW HIGH-SPEED 14-/16-BIT ADC
MAX4434 MAX4435
OUT VEE IN+ 1 2 3 4 IN5 VCC 1 2 IN 3
MAX4434 MAX4435
5
4
SOT23-5 Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1
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.
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC - VEE) ...................................................+6V Differential Input Voltage .......................................................+2V Input Voltage Range ........................(VCC + 0.3V) to (VEE - 0.3V) Current into Any Input Pin.................................................25mA Output Short-Circuit Duration to VCC or VEE ...................(Note 1) Continuous Power Dissipation (TA = +70C) 5-Pin SOT23 (derate 7.1mW/C above +70C) ..........571mW 8-Pin SO (derate 5.88mW/C above +70C)...............471mW 8-Pin MAX (derate 4.5mW/C above +70C) ........... 330mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
Note 1: The MAX4434-MAX4437 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 = 0, RL = to VCC/2, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Input Common-Mode Voltage Range Input Offset Voltage Input Offset Voltage Temperature Coefficient Input Offset Voltage Matching Input Bias Current Input Offset Current IB IOS Differential Mode -10mV VIN +10mV Common Mode 0 VCM (VCC - 1V) VEE VCM (VCC - 1V) (VEE + 0.25) VOUT (VCC 0.25), RL = 10k (VEE + 0.5) VOUT (VCC 0.5), RL = 500 RL = 10k RL = 20 to Ground VCC - VOH VOL - VEE Sinking Sourcing 40 35 75 100 96 SYMBOL VCM VOS TCVOS MAX4436/MAX4437 CONDITIONS Guaranteed by CMRR test MIN VEE 1 4 0.25 14 1 1 1.7 100 115 dB 110 65 15 65 60 70 85 +4.5 15 110 +5.5 18 200 70 mV mA mA dB V mA 22 5 TYP MAX VCC - 1 3.5 UNITS V mV V/C mV A A k M dB
Input Resistance
RIN
Common-Mode Rejection Ratio
CMRR
Open-Loop Gain
AVOL
Output Voltage Swing Output Current Output Short-Circuit Current DC Power-Supply Rejection Ratio Operating Supply Voltage Quiescent Supply Current (Per Amplifier)
VOUT IOUT ISC PSRR VS IS
Sinking or sourcing VCC = +4.5V to +5.5V Guaranteed by PSRR test
Note 2: All devices are 100% production tested at +25C. Specifications over temperature limits are guaranteed by design.
2
_______________________________________________________________________________________
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps
AC ELECTRICAL CHARACTERISTICS
(VCC = +5V, VEE = 0, VCM = VCC/2, RL = 500, AVCL = +1, and TA = +25C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS VOUT = 20mVp-p MAX4434/MAX4436 BWSS VOUT = 20mVp-p MAX4435/MAX4437 (AVCL = +5) VOUT = 2Vp-p MAX4434/MAX4436 BWLS VOUT = 4Vp-p MAX4435/MAX4437 (AVCL = +5) VOUT = 20mVp-p MAX4434/MAX4436 BW0.1dBSS VOUT = 20mVp-p MAX4435/MAX4437 (AVCL = +5) VOUT = 2Vp-p MAX4434/MAX4436 BW0.1dBLS VOUT = 4Vp-p MAX4435/MAX4437 (AVCL = +5) VOUT = 2V step MAX4434/MAX4436 Slew Rate SR VOUT = 4V step MAX4435/MAX4437 (AVCL = +5) VOUT = 2V step MAX4434/MAX4436 Rise/Fall Time tR , t F VOUT = 4V step MAX4435/MAX4437 (AVCL = +5) VOUT = 1.5V to 3.5V step MAX4434/MAX4436 Settling Time to 16-Bit (0.0015%) tS 0.0015% VOUT = 1.5V to 3.5V step MAX4435/MAX4437 (AVCL = +5) VOUT = 1V to 4V step MAX4434/MAX4436 Output "Glitch" Settling to 16-Bit (0.0015%) Output Overload Recovery Time AC Common-Mode Rejection Ratio CMRR 5pF load, CL charged from 1V to 4V 50% overdrive, settling to 10% accuracy fC = 100kHz 10 35 23 42 41 100 -92 ns ns dB ns 388 17 ns MIN TYP 150 MHz 150 28 MHz 25 80 MHz 80 15 MHz 20 133 V/s MAX UNITS
MAX4434-MAX4437
Small-Signal -3dB Bandwidth
Large-Signal -3dB Bandwidth
Small-Signal 0.1dB Gain Flatness
Large-Signal 0.1dB Gain Flatness
_______________________________________________________________________________________
3
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, VEE = 0, VCM = VCC/2, RL = 500, AVCL = +1, and TA = +25C, unless otherwise noted.)
PARAMETER AC Power-Supply Rejection Ratio SYMBOL PSRR fC = 100kHz VOUT = 2Vp-p centered at VCC/2 Spurious-Free Dynamic Range SFDR VOUT = 3Vp-p centered at VCC/2 VOUT = 4Vp-p centered at VCC/2 Input Noise Voltage Density Input Noise Current Density Input Capacitance Maximum Capacitive Load Without Sustained Oscillations Output Impedance Crosstalk ZOUT fC = 1MHz fC = 1MHz, MAX4436/MAX4437 en in CIN fC = 100kHz fC = 100kHz fC = 100kHz fC = 1MHz fC = 100kHz fC = 1MHz fC = 100kHz fC = 1MHz CONDITIONS MIN TYP -101 -97 -98 -130 -99 -112 -97 2.2 2.0 2.3 30 0.05 -80 nV/Hz pA/Hz pF pF dB dBc MAX UNITS dB
Typical Operating Characteristics
(VCC = +5V, VEE = 0, RL = 500, CL = 0, TA = +25C, unless otherwise noted.)
MAX4434/MAX4436 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +1V/V)
MAX4434-37 toc01
MAX4434-37 toc02
2 1 0 GAIN (dB)
20mVp-p
2 1 0 GAIN (dB)
20mVp-p
0.2 0.1 0 GAIN (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7
20mVp-p
-1 -2 -3 -4 -5 -6 -7 100k 1M 10M FREQUENCY (Hz) 100M 1G
-1 -2 -3 -4 -5 -6 -7 100k 1M 10M FREQUENCY (Hz) 100M 1G
100k
1M
10M FREQUENCY (Hz)
100M
1G
4
_______________________________________________________________________________________
MAX4434-37 toc03
3
MAX4435/MAX4437 SMALL-SIGNAL GAIN vs. FREQUENCY (AVCL = +5V/V)
3 0.3
MAX4434/MAX4436 GAIN FLATNESS vs. FREQUENCY (AVCL = +1V/V)
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0, RL = 500, CL = 0, TA = +25C, unless otherwise noted.)
MAX4434/MAX4436 GAIN FLATNESS vs. FREQUENCY (AVCL = +1V/V)
MAX4434-37 toc04
MAX4435/MAX4437 GAIN FLATNESS vs. FREQUENCY (AVCL = +5V/V)
0.3 0.2 0.1 0 GAIN (dB)
0.2 0.1 0 GAIN (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 100k
2Vp-p
0.2 0.1 0 GAIN (dB) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 1M 10M 100M FREQUENCY (Hz) 1G 100k
4Vp-p
-0.1 -0.2 -0.3 -0.4 -0.5 -0.6
1M
10M
100M
-0.7 100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4434/MAX4436 LARGE-SIGNAL GAIN vs. FREQUENCY (AVCL = +1V/V)
3 2 1 0 GAIN (dB) 2Vp-p
MAX4434-37 toc07
MAX4435/MAX4437 LARGE-SIGNAL GAIN vs. FREQUENCY (AVCL = +5V/V)
MAX4434-37 toc08
MAX4434/MAX4436 SMALL-SIGNAL PULSE RESPONSE
AVCL = +1V/V INPUT 50mV/div
MAX4434-47 toc09 MAX4434-47 toc12
3 2 1 0 GAIN (dB) -1 -2 -3 -4 -5 -6 -7
-1 -2 -3 -4 -5 -6 -7 100k 1M 10M FREQUENCY (Hz) 100M
OUTPUT 50mV/div
100k
1M
10M
100M
20ns/div
FREQUENCY (Hz)
MAX4435/MAX4437 SMALL-SIGNAL PULSE RESPONSE
MAX4434-47 toc10
MAX4434/MAX4436 LARGE-SIGNAL PULSE RESPONSE
MAX4434-47 toc11
MAX4435/MAX4437 LARGE-SIGNAL PULSE RESPONSE
AVCL = +5V/V INPUT 200mV/div
AVCL = +5V/V INPUT 10mV/div
AVCL = +1V/V INPUT 1V/div
OUTPUT 50mV/div
OUTPUT 1V/div
OUTPUT 1V/div
20ns/div
20ns/div
20ns/div
_______________________________________________________________________________________
5
MAX4434-37 toc06
0.3
MAX4434-37 toc05
MAX4435/MAX4437 GAIN FLATNESS vs. FREQUENCY (AVCL = +5V/V)
0.3
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0, RL = 500, CL = 0, TA = +25C, unless otherwise noted.)
MAX4434/MAX4436 SMALL-SIGNAL PULSE RESPONSE
MAX4434-47 toc13
MAX4435/MAX4437 SMALL-SIGNAL PULSE RESPONSE
MAX4434-47 toc14
MAX4434/MAX4436 LARGE-SIGNAL PULSE RESPONSE
AVCL = +1V/V CL = 30pF INPUT 1V/div
MAX4434-47 toc15
AVCL = +1V/V CL = 15pF INPUT 50mV/div
AV = +5V/V CL = 15pF INPUT 10mV/div
OUTPUT 50mV/div
OUTPUT 50mV/div
OUTPUT 1V/div
20ns/div
20ns/div
20ns/div
MAX4435/MAX4437 LARGE-SIGNAL PULSE RESPONSE
MAX4434-47 toc16
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
COMMON-MODE REJECTION RATIO (dB) POWER-SUPPLY REJECTION RATIO (dB) -10 -30 -50 -70 -90 -110
MAX4434-37 toc17
COMMON-MODE REJECTION RATIO vs. FREQUENCY
-10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0.1 1 10 100
MAX4434-37 toc18
0
AVCL = +5V/V CL = 30pF INPUT 200mV/div
OUTPUT 1V/div
20ns/div
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
OUTPUT ISOLATION RESISTANCE vs. CAPACITIVE LOAD
MAX4434-37 toc19
CLOSED-LOOP OUTPUT IMPEDANCE vs. FREQUENCY
MAX4434-37 toc20
GAIN AND PHASE vs. FREQUENCY
70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 10k 100k
MAX4434-37 toc21
12 OUTPUT ISOLATION RESISTANCE () 10 MAX4434/MAX4436 8 6 MAX4435/MAX4437 4 2 0 0 50 100 150
100
AVCL = 1000V/V GAIN
10
1
PHASE
0.1
0.01 200 0.1 1 10 FREQUENCY (MHz) 100 1000 CAPACITIVE LOAD (pF)
315 270 225 180 135 90 45 0 -45 -90 -135 -180 -225 -270
OUTPUT IMPEDANCE ()
1M
10M
100M
1G
FREQUENCY (Hz)
6
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PHASE (degrees)
GAIN (dB)
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0, RL = 500, CL = 0, TA = +25C, unless otherwise noted.)
HARMONIC DISTORTION vs. FREQUENCY
MAX4434-37 toc22
HARMONIC DISTORTION vs. OUTPUT SWING
MAX4434-37 toc23
HARMONIC DISTORTION vs. RESISTIVE LOAD
-10 HARMONIC DISTORTION (dB) -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 4.0 0 500 1000 2ND HARMONIC 3RD HARMONIC 1500 2000 2500 VOUT = 1Vp-p f = 500kHz
MAX4434-37 toc24
-50 VOUT = 2Vp-p HARMONIC DISTORTION (dB) -60 -70 -80 -90 -100 2ND HARMONIC
-40 f = 500kHz -50 HARMONIC DISTORTION (dB) -60 -70 -80 -90 -100 -110 -120 2ND HARMONIC 3RD HARMONIC
0
-110 0.1
3RD HARMONIC 1 FREQUENCY (MHz) 10
-130 0 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT SWING (Vp-p) 3.5
RESISTIVE LOAD ()
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX4434-37 toc25
INPUT CURRENT NOISE DENSITY vs. FREQUENCY
MAX4434-37 toc26
MAX4436/MAX4437 CROSSTALK vs. FREQUENCY
MAX4434-37 toc27
100
100 CURRENT NOISE DENSITY (pA/Hz)
0 -20 -40
VOLTAGE NOISE (nV/Hz)
10
10
GAIN (dB) 1 10 100 1k 10k 100k 1M
-60 -80 -100
1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz)
1 FREQUENCY (Hz)
-120 0.1 1 10 FREQUENCY (MHz) 100 1000
QUIESCENT CURRENT PER AMPLIFIER vs. TEMPERATURE
MAX4434-37 toc28
BIAS CURRENT vs. TEMPERATURE
MAX4434-37 toc29
OFFSET VOLTAGE vs. TEMPERATURE
0.8 0.6 OFFSET VOLTAGE (mV) 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0
MAX4434-37 toc30
16 15 QUIESCENT CURRENT (mA) 14 13 12 11 10 -50 -25 0 25 50 75
15 14 13 BIAS CURRENT (A) 12 11 10 9 8 7 6 5
1.0
100
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
TEMPERATURE (C)
TEMPERATURE (C)
TEMPERATURE (C)
_______________________________________________________________________________________
7
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0, RL = 500, CL = 0, TA = +25C, unless otherwise noted.)
VOLTAGE SWING vs. TEMPERATURE
MAX4434-37 toc31
VOLTAGE SWING vs. TEMPERATURE
RL = 10k 80 VOLTAGE SWING (mV)
MAX4434-37 toc32
150 FROM POSITIVE 120 VOLTAGE SWING (mV)
100
90
60
FROM POSITIVE RAIL
60
FROM NEGATIVE
40
30
20
FROM NEGATIVE RAIL
0 -50 -25 0 25 50 75 100 TEMPERATURE (C)
0 -50 -25 0 25 50 75 100 TEMPERATURE (C)
Pin Description
PIN MAX4434/MAX4435 SOT23 1 2 3 4 5 --
PIN MAX4436/MAX4437 SO/MAX 1 2 3 4 5 6 7 8 OUTA INAINA+ VEE INB+ INBOUTB VCC Amplifier A Output Amplifier A Inverting Input Amplifier A Noninverting Input Ground Amplifier A Noninverting Input Amplifier A Inverting Input Amplifier A Output Positive Power Supply NAME FUNCTION
NAME SO 6 4 3 2 7 OUT VEE IN+ INVCC N.C. Output Ground Noninverting Input Inverting Input
FUNCTION
Positive Power Supply No Connection. Not internally connected.
1, 5, 8
8
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Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps
Detailed Description
The MAX4434-MAX4437 are wide-bandwidth, ultra-lowdistortion, voltage-feedback amplifiers. The MAX4434/ MAX4436 are internally compensated for unity gain. The MAX4435/MAX4437 are internally compensated for gains of +5V/V or greater. These amplifiers have ultra-fast 35ns (MAX4434/ MAX4436) 16-bit settling times, -97dB SFDR at 1MHz, and 4Vp-p output swing with minimum 115dB openloop gain. and 5 for the MAX4435/MAX4437. 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 MAX4434-MAX4437), the maximum recommended value for RS is 500. 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.
MAX4434-MAX4437
High-Speed ADC Input Driver Application
The MAX4434-MAX4437 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 MAX4434-MAX4437 are shown in Figures 2a and 2b. The minimum unconditionally stable gain values are 1 for the MAX4434/MAX4436
Applications Information
Layout and Power-Supply Bypassing
The MAX4434-MAX4437 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 amplifier's accuracy and stability. In general, use sur-
VCC HIGH-SPEED 14/16-BIT ADC VEE
Figure 1. Typical Application Circuit
RF VIN RS VOUT IF V R A = 1 + F = OUT VIN RS VIN IF VOUT A= RS RF RB V - RF = OUT VIN RS
Figure 2a. Noninverting Configuration
Figure 2b. Inverting Configuration
_______________________________________________________________________________________
9
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Selector Guide
PART
RISO VOUT VIN CL RL
AMPS
MIN GAIN STABLE (V/V) +1 +5 +1 +5
BW (MHz) 150 150 150 150
SETTLING TIME TO 0.0015% (ns) 35 23 35 23
MAX4434 MAX4435 MAX4436 MAX4437
1 1 2 2
MAX4434MAX4437
Pin Configurations (continued)
TOP VIEW
Figure 3. Capacitive-Load Driving Circuit
N.C. IN-
1 2 3 4
8 7 6 5
N.C. VCC OUT N.C.
MAX4434 MAX4435
face-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 0.1F surface-mount ceramic capacitors between VCC and the ground plane, located as close to the package as possible. Place a 10F 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.
IN+ VEE
SO MAX4436 MAX4437
OUTA INAINA+ VEE
1 2 3 4
8 7 6 5
VCC
OUTB INBINB+
Driving Capacitive Loads
The MAX4434-MAX4437 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).
MAX/SO
Chip Information
MAX4434/MAX4435 TRANSISTOR COUNT: 141 MAX4436/MAX4437 TRANSISTOR COUNT: 318
10
______________________________________________________________________________________
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Package Information
SOT5L.EPS
______________________________________________________________________________________
8LUMAXD.EPS
11
Single-Supply, 150MHz, 16-Bit Accurate, Ultra-Low Distortion Op Amps MAX4434-MAX4437
Package Information (continued)
SOICN.EPS
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 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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