MAX4268 Maxim, MAX4268 Datasheet

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MAX4268

Manufacturer Part Number
MAX4268
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
Manufacturer
Maxim
Datasheet
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
MAX4269/MAX4270 are available in a 16-pin QSOP
package.
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.
19-1552; Rev 2; 8/00
Pin Configurations appear at end of data sheet.
MAX4265
MAX4266
MAX4267
MAX4268
MAX4269
MAX4270
PART
Base-Station Amplifiers
IF Amplifiers
High-Frequency ADC Drivers
High-Speed DAC Buffers
RF Telecom Applications
High-Frequency Signal Processing
________________________________________________________________ Maxim Integrated Products
®
OP AMPS
NO. OF
General Description
package, and the MAX4268/
1
1
1
2
2
2
Applications
MIN GAIN
(V/V)
400MHz Op Amps with Disable
1
2
5
1
2
5
Ultra-Low-Distortion, +5V,
BANDWIDTH (MHz)
♦ Operates from +4.5V to +8.0V
♦ Superior SFDR with 100Ω Load
♦ 35dBm IP3 (f
♦ 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
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX4265EUA
MAX4265ESA
MAX4266EUA
MAX4266ESA
MAX4267EUA
MAX4267ESA
MAX4268EEE
MAX4268ESD
MAX4269EEE
MAX4269ESD
MAX4270EEE
MAX4270ESD
-3dB
State
400
350
300
300
350
200
-90dBc (f
-59dBc (f
PART
C
C
C
= 5MHz)
= 100MHz)
= 20MHz)
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
(MHz)
GBP
1500
1000
400
700
300
700
Ordering Information
Selector Guide
BANDWIDTH (MHz)
FULL-POWER
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
270
350
300
175
200
200
Features
1

Related parts for MAX4268

MAX4268 Summary of contents

Page 1

... 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 ...

Page 2

... Lead Temperature (soldering, 10s) .................................+300° / unless otherwise noted. Typical values are MIN MAX CONDITIONS Inferred from PSRR test Inferred from CMRR test OS MAX4268/MAX4269/MAX4270 Either input (V + 1.6V) ≤ V ≤ -10mV ≤ V ≤ 10mV 1.6V) ≤ V ≤ 1.6V), no load EE CM ...

Page 3

... Gain Flatness BW All-Hostile Crosstalk Slew Rate Rise/Fall Times Settling Time (0.1%) Spurious-Free SFDR Dynamic Range _______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable / /2, MAX4265/MAX4268 unless otherwise noted. Typical values are at T MIN MAX CONDITIONS MAX4265 MAX4266 MAX4267 V = 100m ...

Page 4

... MAX4267/MAX4270 A = +5V/ MIN PARAMETER SYMBOL Spurious-Free SFDR Dynamic Range Second Harmonic Distortion 4 _______________________________________________________________________________________ / /2, MAX4265/MAX4268 unless otherwise noted. Typical values are at T MAX CONDITIONS f = 1MHz 5MHz 10MHz V = 1Vp-p C OUT (MAX4269) ...

Page 5

... EE L MAX4267/MAX4270 A = +5V/ PARAMETER SYMBOL Third Harmonic Distortion Two-Tone, Third-Order Intercept Distortion _______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable / /2, MAX4265/MAX4268 unless otherwise noted. Typical values are at T MIN MAX CONDITIONS f = 1MHz 5MHz 1Vp-p OUT ...

Page 6

... MAX4268 MAX4269 -2 -3 MAX4270 - 0.1M 1M 10M 100M FREQUENCY (Hz) 6 _______________________________________________________________________________________ / /2, MAX4265/MAX4268 unless otherwise noted. Typical values are at T MAX CONDITIONS f = 20MHz C NTSC 3.58MHz 150Ω NTSC 3.58MHz 150Ω 10MHz ...

Page 7

... OUT -30 -40 -50 -60 -70 2ND HARMONIC -80 -90 3RD HARMONIC -100 0 FREQUENCY (MHz) _______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable Typical Operating Characteristics (continued) = 100Ω /2, MAX4265/MAX4268 MAX4265/MAX4266/MAX4267 LARGE-SIGNAL GAIN vs. FREQUENCY 1Vp-p OUT 3 2 MAX4265 MAX4266 -2 MAX4267 - ...

Page 8

... TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 0 1Vp-p OUT MAX4267/MAX4270 0.01 MAX4265/MAX4268 MAX4266/MAX4269 0.001 0 100 FREQUENCY (MHz) 8 _______________________________________________________________________________________ Typical Operating Characteristics (continued) = 100Ω /2, MAX4265/MAX4268 MAX4270 DISTORTION vs. LOAD RESISTANCE - 5MHz O - 1Vp-p OUT -40 -50 -60 -70 2ND HARMONIC -80 -90 3RD HARMONIC ...

Page 9

... FREQUENCY (Hz) _______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable Typical Operating Characteristics (continued) = 100Ω /2, MAX4265/MAX4268 OUTPUT IMPEDANCE vs. FREQUENCY 1000 100 10 1 0.1 0.01 0.1M 1M 10M 100M FREQUENCY (Hz) MAX4266/MAX4269 DIFFERENTIAL GAIN AND PHASE 0.020 0.010 0.000 -0.010 -0 ...

Page 10

... SUPPLY VOLTAGE (V) INPUT BIAS CURRENT vs. TEMPERATURE - -50 -35 - TEMPERATURE (°C) 10 ______________________________________________________________________________________ Typical Operating Characteristics (continued) = 100Ω /2, MAX4265/MAX4268 DISABLE/ENABLE RESPONSE MAX4265/70- 250ns/div SUPPLY CURRENT (PER AMPLIFIER) vs. SUPPLY VOLTAGE 8.0 4 ...

Page 11

... INPUT 10mV/div OUTPUT 50mV/div MAX4266/MAX4269 LARGE-SIGNAL PULSE RESPONSE INPUT 250mV/div OUTPUT 500mV/div ______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable Typical Operating Characteristics (continued) = 100Ω /2, MAX4265/MAX4268 MAX4265/MAX4268 SMALL-SIGNAL PULSE RESPONSE INPUT 50mV/div OUTPUT 50mV/div 5ns/div INPUT 500mV/div OUTPUT 500mV/div 5ns/div ...

Page 12

... Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable PIN MAX4268 MAX4265 MAX4266 MAX4269 MAX4267 MAX4270 8 µMAX/ QSOP 1 — — — — — — — — — — — — 13, 14 15, 16 — ...

Page 13

... Choosing Resistor Values Unity-Gain Configurations The MAX4265 and MAX4268 are internally compensat- ed for unity gain. When configured for unity gain, they require a small resistor ( series with the feedback F path (Figure 1). This resistor improves AC response by reducing the Q of the tank circuit, which is formed by parasitic feedback inductance and capacitance ...

Page 14

... Figure 3b. MAX4269 Small-Signal Gain vs. Frequency Without Isolation Resistor 0.1M 1G Figure 4a. MAX4268 Small-Signal Gain vs. Frequency With Isolation Resistor MAX4265/MAX4268 MAX4266/MAX4269 MAX4267/MAX4270 100 120 C (pF) LOAD C = 7.3pF 5.1pF 2.2pF L 1M ...

Page 15

... Minimizing the trace lengths connected to the inverting does not EE input helps minimize stray capacitance. MAX4265/66/67 TRANSISTOR COUNT: 132 MAX4268/69/70 TRANSISTOR COUNT: 285 CC PROCESS: Bipolar 22pF 22Ω ...

Page 16

... MAX4268 DISABLEA 4 11 N.C. OUT MAX4269 DISABLEB 5 10 INB+ MAX4270 INB OUTB EE SO Pin Configurations OUTA INA INA N.C. MAX4268 DISABLEA 4 13 N.C. MAX4269 DISABLEB 5 12 INB+ MAX4270 INB OUTB EE N. N.C. QSOP ...

Page 17

... For the latest package outline information go to www.maxim-ic.com/packages Ø0.50±0.1 0.6±0.1 1 0.6±0.1 D TOP VIEW FRONT VIEW ______________________________________________________________________________________ Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable ...

Page 18

... Ultra-Low-Distortion, +5V, 400MHz Op Amps with Disable (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 TOP VIEW FRONT VIEW 18 ______________________________________________________________________________________ Package Information (continued 0∞-8∞ ...

Page 19

... For the latest package outline information go to www.maxim-ic.com/packages.) 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. ...

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