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19-1552; Rev 2; 8/00
Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
General Description
The MAX4265–MAX4270 ultra-low distortion, voltage-feed-
back op amps are capable of driving a 100load while
maintaining ultra-low distortion over a wide bandwidth.
They offer superior spurious-free dynamic range (SFDR)
performance: -90dBc at 5MHz and -59dBc at 100MHz
(MAX4269). Additionally, input voltage noise density is
8nV/Hz while operating from a single +4.5V to +8.0V sup-
ply or from dual ±2.25V to ±4.0V supplies. These features
make the MAX4265–MAX4270 ideal for use in high-perfor-
mance communications and signal-processing applica-
tions that require low distortion and wide bandwidth.
The MAX4265 single and MAX4268 dual amplifiers are
unity-gain stable. The MAX4266 single and MAX4269 dual
amplifiers are compensated for a minimum stable gain of
+2V/V, while the MAX4267 single and MAX4270 dual
amplifiers are compensated for a minimum stable gain of
+5V/V.
For additional power savings, these amplifiers feature a
low-power disable mode that reduces supply current
and places the outputs in a high-impedance state. The
MAX4265/MAX4266/MAX4267 are available in a space-
saving 8-pin µMAX® package, and the MAX4268/
MAX4269/MAX4270 are available in a 16-pin QSOP
package.
Applications
Base-Station Amplifiers
IF Amplifiers
High-Frequency ADC Drivers
High-Speed DAC Buffers
RF Telecom Applications
High-Frequency Signal Processing
Pin Configurations appear at end of data sheet.
Features
Operates from +4.5V to +8.0V
Superior SFDR with 100Load
-90dBc (fC = 5MHz)
-59dBc (fC = 100MHz)
35dBm IP3 (fC = 20MHz)
8nV/Hz Voltage Noise Density
100MHz 0.1dB Gain Flatness (MAX4268)
900V/µs Slew Rate
±45mA Output Driving Capability
Disable Mode Places Outputs in High-Impedance
State
Ordering Information
PART
MAX4265EUA
MAX4265ESA
MAX4266EUA
MAX4266ESA
MAX4267EUA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
MAX4267ESA
MAX4268EEE
MAX4268ESD
MAX4269EEE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 SO
16 QSOP
14 SO
16 QSOP
MAX4269ESD
MAX4270EEE
-40°C to +85°C
-40°C to +85°C
14 SO
16 QSOP
MAX4270ESD
-40°C to +85°C 14 SO
µMAX is a registered trademark of Maxim Integrated Products, Inc.
PART
MAX4265
MAX4266
MAX4267
MAX4268
MAX4269
MAX4270
NO. OF
OP AMPS
1
1
1
2
2
2
MIN GAIN
(V/V)
1
2
5
1
2
5
-3dB
BANDWIDTH (MHz)
400
350
300
300
350
200
GBP
(MHz)
400
700
1500
300
700
1000
Selector Guide
FULL-POWER
BANDWIDTH (MHz)
270
350
300
175
200
200
________________________________________________________________ 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.

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Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE)...............................................+8.5V
Voltage on Any Other Pin .................(VEE - 0.3V) to (VCC + 0.3V)
Short-Circuit Duration (VOUT to VCC or VEE) ..............Continuous
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 4.10mW/°C above +70°C) ..........330mW
16-Pin QSOP (derate 8.33mW/°C above +70°C)........667mW
8-Pin SO (derate 5.9mW/°C above +70°C).................471mW
14-Pin SO (derate 8.33mW/°C above +70°C).............667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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 = 100to VCC/2, VCM = VCC/2, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Supply Voltage
Range
VCC
Common-Mode Input Voltage
Input Offset Voltage
Input Offset Voltage Drift
VCM
VOS
TCVOS
Input Offset Voltage Channel
Matching
Input Bias Current
Input Offset Current
IB
IOS
Common-Mode Input
Resistance
RINCM
Differential Input Resistance
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Open-Loop Voltage Gain
Output Voltage Swing
Output Current Drive
Output Short-Circuit Current
Closed-Loop Output Resistance
Power-Up Time
RINDIFF
CMRR
PSRR
AOL
VOUT
IOUT
ISC
ROUT
tPWRUP
Quiescent Supply Current
(per amplifier)
IS
Disable Output Leakage Current
DISABLE_ Logic Low
DISABLE_ Logic High
DISABLE_ Logic Input Low
Current
Inferred from PSRR test
4.5 8.0 V
Inferred from CMRR test
VEE + 1.6
VCC - 1.6
19
1.5
V
mV
µV/°C
MAX4268/MAX4269/MAX4270
1 mV
3.5 40 µA
0.1 6 µA
Either input (VEE + 1.6V) VCM (VCC - 1.6V)
1
M
-10mV VIN 10mV
(VEE + 1.6V) VCM (VCC - 1.6V), no load
VCC = 4.5V to 8.0V
1.75V VOUT 3.25V
VCC - VOH, VOL - VEE
RL = 20
Sinking or sourcing to VCC or VEE
VOUT = 1V step, 0.1% settling time
Normal mode, DISABLE_ = VCC or floating
Disable mode, DISABLE_ = VEE
DISABLE_ = VEE, VEE VOUT VCC
40
60 85
60 85
60 95
1.1 1.5
±30 ±45
100
0.035
10
28 32
1.6 5
0.2 2.5
VCC - 1.5
VCC - 3.5
k
dB
dB
dB
V
mA
mA
µs
mA
mA
µA
V
V
DISABLE_ = VEE
5 100 µA
DISABLE_ Logic Input High
Current
DISABLE_ = VCC
1 30 µA
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Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
AC ELECTRICAL CHARACTERISTICS
(VCC = +5V, VEE = 0, RL = 100to VCC/2, VCM = VCC/2, MAX4265/MAX4268 AV = +1V/V, MAX4266/MAX4269 AV = +2V/V,
MAX4267/MAX4270 AV = +5V/V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
MAX4265
400
MAX4266
350
Small-Signal -3dB Bandwidth
BW-3dB VOUT = 100mVp-p
MAX4267
MAX4268
300
MHz
300
MAX4269
350
MAX4270
200
MAX4265
270
MAX4266
350
Full-Power Bandwidth
FPBW VOUT = 1Vp-p
MAX4267
MAX4268
300
MHz
175
MAX4269
200
MAX4270
200
MAX4265
80
MAX4266
30
0.1dB Gain Flatness
BW0.1dB VOUT = 100mVp-p
MAX4267
MAX4268
55
MHz
100
MAX4269
35
MAX4270
35
All-Hostile Crosstalk
f = 10MHz
85 dB
Slew Rate
Rise/Fall Times
Settling Time (0.1%)
Spurious-Free
Dynamic Range
SR
tR, tF
tS,0.1
SFDR
VOUT = +1V step
VOUT = +1V step
VOUT = +1V step
VOUT = 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
VOUT = 1Vp-p
(MAX4268)
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
900 V/µs
1 ns
15 ns
83
85
87
81
50
47
dBc
85
85
84
79
68
60
_______________________________________________________________________________________ 3

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Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, VEE = 0, RL = 100to VCC/2, VCM = VCC/2, MAX4265/MAX4268 AV = +1V/V, MAX4266/MAX4269 AV = +2V/V,
MAX4267/MAX4270 AV = +5V/V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Spurious-Free
Dynamic Range
Second Harmonic
Distortion
VOUT = 1Vp-p
(MAX4269)
SFDR
VOUT = 1Vp-p
(MAX4270)
VOUT = 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
VOUT = 1Vp-p
(MAX4268)
VOUT = 1Vp-p
(MAX4269)
VOUT = 1Vp-p
(MAX4270)
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
88
90
88
79
68
59
dBc
86
81
75
68
60
56
83
85
87
81
50
47
85
85
84
79
68
60
dBc
88
90
88
79
68
59
86
81
75
68
60
56
4 _______________________________________________________________________________________

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Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, VEE = 0, RL = 100to VCC/2, VCM = VCC/2, MAX4265/MAX4268 AV = +1V/V, MAX4266/MAX4269 AV = +2V/V,
MAX4267/MAX4270 AV = +5V/V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
Third Harmonic
Distortion
Two-Tone, Third-Order
Intercept Distortion
SYMBOL
IP3
CONDITIONS
fC = 1MHz
VOUT = 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
fC = 5MHz
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
VOUT = 1Vp-p
(MAX4268)
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
VOUT = 1Vp-p
(MAX4269)
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
fC = 1MHz
fC = 5MHz
VOUT = 1Vp-p
(MAX4270)
fC = 10MHz
fC = 20MHz
fC = 60MHz
fC = 100MHz
VOUT = 1Vp-p,
fCA = 20MHz,
fCB = 21.25MHz
MAX4265/MAX4268
MAX4266/MAX4269
MAX4267/MAX4270
MIN TYP MAX UNITS
98
96
91
85
75
61
95
95
93
86
72
64
dBc
88
90
88
79
68
59
96
97
91
84
74
69
32
35 dBm
35
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