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 100Ω load 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.
♦
Operates from +4.5V to +8.0V
♦
Superior SFDR with 100Ω Load
-90dBc (f
C
= 5MHz)
-59dBc (f
C
= 100MHz)
♦
35dBm IP3 (f
C
= 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
Features
MAX4265–MAX4270
Ordering Information
PART
MAX4265EUA
MAX4265ESA
MAX4266EUA
MAX4266ESA
MAX4267EUA
MAX4267ESA
MAX4268EEE
MAX4268ESD
MAX4269EEE
MAX4269ESD
MAX4270EEE
MAX4270ESD
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
-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
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
16 QSOP
14 SO
16 QSOP
14 SO
16 QSOP
14 SO
Applications
Base-Station Amplifiers
IF Amplifiers
High-Frequency ADC Drivers
High-Speed DAC Buffers
RF Telecom Applications
High-Frequency Signal Processing
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations appear at end of data sheet.
Selector Guide
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
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.
Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
MAX4265–MAX4270
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to V
EE
)...............................................+8.5V
Voltage on Any Other Pin .................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Short-Circuit Duration (V
OUT
to V
CC
or V
EE
) ..............Continuous
Continuous Power Dissipation (T
A
= +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
(V
CC
= +5V, V
EE
= 0, R
L
= 100Ω to V
CC
/2, V
CM
= V
CC
/2, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Operating Supply Voltage
Range
Common-Mode Input Voltage
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Voltage Channel
Matching
Input Bias Current
Input Offset Current
Common-Mode Input
Resistance
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
Quiescent Supply Current
(per amplifier)
Disable Output Leakage Current
DISABLE_ Logic Low
DISABLE_ Logic High
DISABLE_ Logic Input Low
Current
DISABLE_ Logic Input High
Current
DISABLE_ = V
EE
DISABLE_ = V
CC
V
CC
- 1.5
5
1
100
30
I
B
I
OS
R
INCM
R
INDIFF
CMRR
PSRR
A
OL
V
OUT
I
OUT
I
SC
R
OUT
t
PWRUP
I
S
V
OUT
= 1V step, 0.1% settling time
Normal mode, DISABLE_ = V
CC
or floating
Disable mode, DISABLE_ = V
EE
DISABLE_ = V
EE
, V
EE
≤
V
OUT
≤
V
CC
Either input (V
EE
+ 1.6V)
≤
V
CM
≤
(V
CC
- 1.6V)
-10mV
≤
V
IN
≤
10mV
(V
EE
+ 1.6V)
≤
V
CM
≤
(V
CC
- 1.6V), no load
V
CC
= 4.5V to 8.0V
1.75V
≤
V
OUT
≤
3.25V
V
CC
- V
OH
, V
OL
- V
EE
R
L
= 20Ω
Sinking or sourcing to V
CC
or V
EE
±30
60
60
60
SYMBOL
V
CC
V
CM
V
OS
TCV
OS
MAX4268/MAX4269/MAX4270
CONDITIONS
Inferred from PSRR test
Inferred from CMRR test
MIN
4.5
V
EE
+ 1.6
1
1.5
1
3.5
0.1
1
40
85
85
95
1.1
±45
100
0.035
10
28
1.6
0.2
32
5
2.5
V
CC
- 3.5
1.5
40
6
TYP
MAX
8.0
V
CC
- 1.6
9
UNITS
V
V
mV
µV/°C
mV
µA
µA
MΩ
kΩ
dB
dB
dB
V
mA
mA
Ω
µs
mA
mA
µA
V
V
µA
µA
2
_______________________________________________________________________________________
Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= 0, R
L
= 100Ω to V
CC
/2, V
CM
= V
CC
/2, MAX4265/MAX4268 A
V
= +1V/V, MAX4266/MAX4269 A
V
= +2V/V,
MAX4267/MAX4270 A
V
= +5V/V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MAX4265
MAX4266
Small-Signal -3dB Bandwidth
BW
-3dB
V
OUT
= 100mVp-p
MAX4267
MAX4268
MAX4269
MAX4270
MAX4265
MAX4266
Full-Power Bandwidth
FPBW
V
OUT
= 1Vp-p
MAX4267
MAX4268
MAX4269
MAX4270
MAX4265
MAX4266
0.1dB Gain Flatness
BW
0.1dB
V
OUT
= 100mVp-p
MAX4267
MAX4268
MAX4269
MAX4270
All-Hostile Crosstalk
Slew Rate
Rise/Fall Times
Settling Time (0.1%)
SR
t
R
, t
F
t
S,0.1
f = 10MHz
V
OUT
= +1V step
V
OUT
= +1V step
V
OUT
= +1V step
f
C
= 1MHz
V
OUT
= 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
Spurious-Free
Dynamic Range
SFDR
f
C
= 5MHz
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4268)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
MIN
TYP
400
350
300
300
350
200
270
350
300
175
200
200
80
30
55
100
35
35
85
900
1
15
83
85
87
81
50
47
85
85
84
79
68
60
dBc
dB
V/µs
ns
ns
MHz
MHz
MHz
MAX
UNITS
MAX4265–MAX4270
_______________________________________________________________________________________
3
Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
MAX4265–MAX4270
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= 0, R
L
= 100Ω to V
CC
/2, V
CM
= V
CC
/2, MAX4265/MAX4268 A
V
= +1V/V, MAX4266/MAX4269 A
V
= +2V/V,
MAX4267/MAX4270 A
V
= +5V/V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4269)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
Spurious-Free
Dynamic Range
SFDR
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4270)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
V
OUT
= 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
f
C
= 5MHz
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4268)
Second Harmonic
Distortion
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4269)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4270)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
MIN
TYP
88
90
88
79
68
59
86
81
75
68
60
56
83
85
87
81
50
47
85
85
84
79
68
60
88
90
88
79
68
59
86
81
75
68
60
56
dBc
dBc
MAX
UNITS
4
_______________________________________________________________________________________
Ultra-Low-Distortion, +5V,
400MHz Op Amps with Disable
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= 0, R
L
= 100Ω to V
CC
/2, V
CM
= V
CC
/2, MAX4265/MAX4268 A
V
= +1V/V, MAX4266/MAX4269 A
V
= +2V/V,
MAX4267/MAX4270 A
V
= +5V/V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
f
C
= 1MHz
V
OUT
= 1Vp-p
(MAX4265/
MAX4266/
MAX4267)
f
C
= 5MHz
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4268)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
Third Harmonic
Distortion
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4269)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
f
C
= 1MHz
f
C
= 5MHz
V
OUT
= 1Vp-p
(MAX4270)
f
C
= 10MHz
f
C
= 20MHz
f
C
= 60MHz
f
C
= 100MHz
Two-Tone, Third-Order
Intercept Distortion
IP3
V
OUT
= 1Vp-p,
f
CA
= 20MHz,
f
CB
= 21.25MHz
MAX4265/MAX4268
MAX4266/MAX4269
MAX4267/MAX4270
MIN
TYP
98
96
91
85
75
61
95
95
93
86
72
64
88
90
88
79
68
59
96
97
91
84
74
69
32
35
35
dBm
dBc
MAX
UNITS
MAX4265–MAX4270
_______________________________________________________________________________________
5
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
