MAX4285ESA+ Maxim Integrated Products, MAX4285ESA+ Datasheet

IC ADC BUFFER AMP 8-SOIC

MAX4285ESA+

Manufacturer Part Number
MAX4285ESA+
Description
IC ADC BUFFER AMP 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX4285EUTT.pdf (16 pages)

Specifications of MAX4285ESA+

Amplifier Type
Buffer
Number Of Circuits
1
Slew Rate
385 V/µs
-3db Bandwidth
220MHz
Current - Input Bias
13µA
Voltage - Input Offset
100µV
Current - Supply
23mA
Current - Output / Channel
106mA
Voltage - Supply, Single/dual (±)
2.85 V ~ 6.5 V, ±1.425 V ~ 3.25 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
1
Voltage Gain Db
94 dB
Common Mode Rejection Ratio (min)
50 dB
Input Offset Voltage
0.1 mV
Operating Supply Voltage
3 V, 5 V
Maximum Power Dissipation
471 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Dual Supply Voltage
+/- 3.25 V
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
 Details
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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MAX4285ESA+ Summary of contents

Page 1

... MAX4288 2 MAX4387 2 MAX4388 2 ________________________________________________________________ Maxim Integrated Products 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 with High-Speed Disable o High Speed at 3V 250MHz -3dB Bandwidth (MAX4285/87/88) 150MHz -3dB Bandwidth (MAX4286, MAX4387/88) 350V/µs Slew Rate o +2 ...

Page 2

SOT23 ADC Buffer Amplifiers with High-Speed Disable ABSOLUTE MAXIMUM RATINGS Supply Voltage ( ...................................-0.3V to +7. Input Voltage Range (IN+, IN-) ........(V EE Differential Input Voltage .......................................-0.3V to +7.5V DISABLE .........................(V Voltage at ...

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 ...

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 ...

Page 6

SOT23 ADC Buffer Amplifiers with High-Speed Disable = 0, DISABLE_ ≥ 2V +3V MAX4285/MAX4287/MAX4288 SMALL-SIGNAL GAIN vs. FREQUENCY +1V ...

Page 7

SOT23 ADC Buffer Amplifiers = 0, DISABLE_ ≥ 2V +3V MAX4285/MAX4287/MAX4288 DISTORTION vs. LOAD - 20MHz 0.5Vp-p -50 OUT A = +1V/V V -60 2ND HARMONIC -70 ...

Page 8

SOT23 ADC Buffer Amplifiers with High-Speed Disable = 0, DISABLE_ ≥ 2V +3V MAX4285/MAX4287/MAX4288 SMALL-SIGNAL PULSE RESPONSE (A = +1V/V) V INPUT 50mV/ div OUTPUT 50mV/ div TIME (5ns/div) MAX4286/MAX4387/MAX4388 SMALL-SIGNAL PULSE ...

Page 9

SOT23 ADC Buffer Amplifiers = 0, DISABLE_ ≥ 2V +3V VOLTAGE NOISE DENSITY vs. FREQUENCY 100 100 1k 10k 100k 1M FREQUENCY (Hz) INPUT OFFSET CURRENT vs. TEMPERATURE 0.5 ...

Page 10

SOT23 ADC Buffer Amplifiers with High-Speed Disable = 0, DISABLE_ ≥ 2V +3V MAX4286 SMALL-SIGNAL GAIN vs. FREQUENCY 37pF) LOAD ISO LOAD 2 +5V/V ...

Page 11

SOT23 ADC Buffer Amplifiers PIN MAX4285 MAX4287 MAX4286 MAX4387 6-PIN 8-PIN 8-PIN SOT23-6 SO µMAX/SO — — — — — — — — — — ...

Page 12

SOT23 ADC Buffer Amplifiers with High-Speed Disable For example, a noninverting gain-of-two configuration ( using 1kΩ resistors, combined with 2pF typi cal amplifier input capacitance, generates a pole at 159MHz. Since this pole ...

Page 13

SOT23 ADC Buffer Amplifiers Ordering Information (continued) PART TEMP. RANGE PACKAGE MAX4288EUB -40°C to +85°C 10 µMAX MAX4288ESD -40°C to +85° MAX4387EUA -40°C to +85°C 8 µMAX MAX4387ESA -40°C to +85° MAX4388EUB -40°C to ...

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

... 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Package Information (continued) Printed USA is a registered trademark of Maxim Integrated Products ...

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