MAX4286 Maxim, MAX4286 Datasheet

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MAX4286

Manufacturer Part Number
MAX4286
Description
The MAX4285/MAX4286 single and MAX4287/MAX4288/MAX4387/MAX4388 dual ADC buffer amplifiers feature high-speed performance and single +3V supply operation
Manufacturer
Maxim
Datasheet
1.MAX4285.pdf (16 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
MAX4286ESA
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX4285/MAX4286 single and MAX4287/MAX4288/
MAX4387/MAX4388 dual ADC buffer amplifiers feature
high-speed performance and single +3V supply opera-
tion. The MAX4285/MAX4286/MAX4288 and MAX4388
offer a disable feature that reduces power-supply current
and places the outputs in a high-impedance state. All six
devices operate from a +2.85V to +6.5V single supply or
from ±1.425V to ±3.25V dual supplies. The common-
mode input voltage range extends to the negative power-
supply rail (ground in single-supply applications).
These devices require 20mA of quiescent supply current
per amplifier while achieving a 250MHz -3dB bandwidth
and a 350V/µs slew rate. The combination of an 8ns (to
0.1%) settling time, 88dBc (f = 5MHz) of SFDR, and up to
100mA output drive makes these amplifiers ideal for high-
speed ADC drivers for communications and instrumenta-
tion applications. In addition, when disabled, their high
output impedance makes them ideal for multiplexing
applications.
The MAX4285/MAX4286 are available in space-saving
6-pin SOT23 and 8-pin SO packages. The MAX4287/
MAX4387 come in 8-pin µMAX and 8-pin SO packages,
while the MAX4288/MAX4388 come in 10-pin µMAX and
14-pin SO packages.
Typical Operating Circuit appears at end of data sheet.
Pin Configurations appear at end of data sheet.
19-1500; Rev 0; 4/00
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
MAX4285
MAX4286
MAX4287
MAX4288
MAX4387
MAX4388
PART
High-Speed ADC Drivers
Communications Equipment
Instrumentation
CCD Imaging Systems
Ultrasound
________________________________________________________________ Maxim Integrated Products
OP AMPS
PER PKG
General Description
1
1
2
2
2
2
MIN GAIN
Applications
1
5
1
1
5
5
-3dB BANDWIDTH
(AT MIN GAIN)
250MHz
150MHz
250MHz
250MHz
150MHz
150MHz
with High-Speed Disable
o High Speed at 3V
o +2.85V to +6.5V Single-Supply Operation
o Input Common-Mode Range Extends to V
o Low Distortion at 5MHz
o High Output Current Drive: -106mA to +77mA
o 6ns Settling Time to 0.1%
o High-Speed Enable/Disable
o Space-Saving SOT23 and µMAX Packages
Ordering Information continued at end of data sheet.
MAX4285EUT-T -40°C to +85°C
MAX4285ESA
MAX4286EUT-T -40°C to +85°C
MAX4286ESA
MAX4287EUA
MAX4287ESA
250MHz -3dB Bandwidth (MAX4285/87/88)
150MHz -3dB Bandwidth (MAX4286, MAX4387/88)
350V/µs Slew Rate
-88dBc SFDR
40ns Enable Time
50ns Disable Time
High Output Impedance
PART
HIGH-SPEED
DISABLE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Yes
Yes
Yes
Yes
No
No
RANGE
TEMP.
Ordering Information
10-pin µMAX/14-pin SO
10-pin µMAX, 14-pin SO
6-pin SOT23, 8-pin SO
6-pin SOT23, 8-pin SO
8-pin µMAX/SO
8-pin µMAX/SO
Selector Guide
PIN-
PACKAGE
6 SOT23-6
8 SO
6 SOT23-6
8 SO
8 µMAX
8 SO
PIN-PACKAGE
Features
SOT TOP
EE
MARK
AABQ
AABR
—
—
—
—
1

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MAX4286 Summary of contents

Page 1

... In addition, when disabled, their high output impedance makes them ideal for multiplexing applications. The MAX4285/MAX4286 are available in space-saving 6-pin SOT23 and 8-pin SO packages. The MAX4287/ MAX4387 come in 8-pin µMAX and 8-pin SO packages, while the MAX4288/MAX4388 come in 10-pin µMAX and 14-pin SO packages ...

Page 2

... Differential (-10mV ≤ V ≤ +10mV) IN ≤ V ≤ V Common mode ( MAX4_87EU_/ MAX4_88EU_/ MAX4_8_ES_ ≤ V ≤ 1.25V CC MAX4285EUT-T/ MAX4286EUT 2kΩ L VEE + 0.4V ≤ 300Ω L ≤ 0.4V OUT 100Ω unless otherwise noted. Typical values are at MAX MIN TYP MAX 2 ...

Page 3

SOT23 ADC Buffer Amplifiers DC ELECTRICAL CHARACTERISTICS (continued +3V DISABLE_ = 3V +25°C.) (Note 1) A PARAMETER SYMBOL Output Current Drive I OUT Power-Supply Rejection Ratio PSRR Disabled ...

Page 4

... SOT23 ADC Buffer Amplifiers with High-Speed Disable AC ELECTRICAL CHARACTERISTICS (V = +3V DISABLE_ = 3V +5V/V for MAX4286 and MAX4387/MAX4388, T PARAMETER SYMBOL Small-Signal -3dB Bandwidth BW Large-Signal -3dB Bandwidth BW Bandwidth for 0.1dB Flatness BW 0.1dB Slew Rate SR Rise Time t R Fall Time t F Settling Time (0.1 ...

Page 5

... SOT23 ADC Buffer Amplifiers AC ELECTRICAL CHARACTERISTICS (continued +5V DISABLE_ = 5V +5V/V for MAX4286 and MAX4387/MAX4388, T PARAMETER SYMBOL Small-Signal -3dB Bandwidth BW Large-Signal -3dB Bandwidth BW Bandwidth for 0.1dB Flatness BW Slew Rate Rise Time Fall Time Settling Time (0.1 0.1% Spurious-Free Dynamic Range ...

Page 6

... MAX4286/MAX4387/MAX4388 GAIN FLATNESS vs. FREQUENCY 0 +5V/V V 0.3 0 100Ω LOAD 0 300Ω LOAD 0 -0 1kΩ -0.2 LOAD -0.3 -0.4 -0.5 -0.6 1G 100k 1M 10M 100M FREQUENCY (Hz) MAX4286/MAX4387/MAX4388 DISTORTION vs. FREQUENCY - 300Ω 0.5Vp-p OUT - +5V/V V -60 -70 -80 2ND HARMONIC -90 3RD HARMONIC -100 100 0 FREQUENCY (MHz 100 ...

Page 7

... 20MHz - +1V/V V 2ND HARMONIC -60 -70 -80 -90 -100 -110 3RD HARMONIC -120 0 0.25 0.50 0.75 VOLTAGE (Vp-p) MAX4287/MAX4288/MAX4387/MAX4388 CROSSTALK vs. FREQUENCY -20 -40 -60 -80 -100 -120 1G 0 FREQUENCY (MHz) MAX4286/MAX4387/MAX4388 LARGE-SIGNAL PULSE RESPONSE (A = +5V/V) V INPUT 100mV/ div OUTPUT 500mV/ div TIME (5ns/div) 1.00 1.25 100 1000 7 ...

Page 8

... +1.0V, T =+25°C, unless otherwise noted MAX4286/MAX4387/MAX4388 SMALL-SIGNAL PULSE RESPONSE (A = +5V/V) V INPUT 10mV/ div OUTPUT 50mV/ div TIME (5ns/div) ISOLATION RESISTANCE vs. LOAD CAPACITANCE MAX4286/MAX4387/MAX4388 +5V MAX4285/87/ +1V 100 130 160 190 220 C (pF) LOAD COMMON-MODE REJECTION vs ...

Page 9

... TEMPERATURE (°C) POWER-SUPPLY CURRENT vs. TEMPERATURE 100 -50 -35 - 100 TEMPERATURE (°C) MAX4286 SMALL-SIGNAL GAIN vs. FREQUENCY (C = 47pF) LOAD 10 = +5V -10 1G 100k 1M 10M FREQUENCY (Hz 100 ...

Page 10

... 37pF) LOAD ISO LOAD 2 +5V/V 2 22Ω ISO 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 1G 100k 1M 10M 100M FREQUENCY (Hz) ENABLE/DISABLE RESPONSE = 5V MAX4286 SMALL-SIGNAL GAIN vs. FREQUENCY 37pF) LOAD ISO LOAD 2 +5V/V 2 25Ω ISO 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 100k 1M 10M 1G 100M FREQUENCY (Hz) TIME (V = 3V) CC TIME (20ns/div) 1G ...

Page 11

... The enable time is typically 40ns, and the disable time is typically 50ns. The MAX4285/MAX4286 have a single enable pin (DISABLE), and the MAX4288/ ______________________________________________________________________________________ with High-Speed Disable ...

Page 12

... Use a constant-impedance board design if possi- ble. High-Speed Disable The MAX4285/MAX4286/MAX4288 and MAX4388 fea- ture a disable (DISABLE_) input that places the amplifi low-power, high-output-impedance state. When DISABLE_ is asserted, the amplifier’s output impedance is typically 35kΩ. This high output impedance, com- ...

Page 13

... SO MAX4387EUA -40°C to +85°C 8 µMAX MAX4387ESA -40°C to +85° MAX4388EUB -40°C to +85°C 10 µMAX MAX4388ESD -40°C to +85° Chip Information TRANSISTOR COUNT: MAX4285/MAX4286 : 114 MA4287/MAX4288/ MAX4387/MAX4388 : 227 TOP VIEW MAX4285 MAX4286 OUT VEE IN+ IN+ ...

Page 14

SOT23 ADC Buffer Amplifiers with High-Speed Disable 14 ______________________________________________________________________________________ Package Information ...

Page 15

SOT23 ADC Buffer Amplifiers ______________________________________________________________________________________ with High-Speed Disable Package Information (continued) 15 ...

Page 16

... SOT23 ADC Buffer Amplifiers with High-Speed Disable 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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