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MAX4387EUA+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
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General Description
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.
Applications
High-Speed ADC Drivers
Communications Equipment
Instrumentation
CCD Imaging Systems
Ultrasound
Features
♦ High Speed at 3V
250MHz -3dB Bandwidth (MAX4285/87/88)
150MHz -3dB Bandwidth (MAX4286, MAX4387/88)
350V/µs Slew Rate
♦ +2.85V to +6.5V Single-Supply Operation
♦ Input Common-Mode Range Extends to V
EE
♦ Low Distortion at 5MHz
-88dBc SFDR
♦ High Output Current Drive: -106mA to +77mA
♦ 6ns Settling Time to 0.1%
♦ High-Speed Enable/Disable
40ns Enable Time
50ns Disable Time
High Output Impedance
♦ Space-Saving SOT23 and µMAX Packages
MAX4285–MAX4288/MAX4387/MAX4388
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
________________________________________________________________ Maxim Integrated Products 1
19-1500; Rev 0; 4/00
Ordering Information continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Ordering Information
Selector Guide
MAX4285EUT-T
-40°C to +85°C 6 SOT23-6
AABQ
SOT TOP
MARK
PIN-
PACKAGE
TEMP.
RANGE
PART
MAX4285ESA -40°C to +85°C 8 SO —
MAX4286EUT-T
-40°C to +85°C 6 SOT23-6
AABR
MAX4286ESA -40°C to +85°C 8 SO —
MAX4287EUA
-40°C to +85°C 8 µMAX —
MAX4287ESA -40°C to +85°C 8 SO —
PART
OP AMPS
PER PKG
MIN GAIN
-3dB BANDWIDTH
(AT MIN GAIN)
HIGH-SPEED
DISABLE
PIN-PACKAGE
MAX4285 1 1 250MHz Yes 6-pin SOT23, 8-pin SO
MAX4286 1 5 150MHz Yes 6-pin SOT23, 8-pin SO
MAX4287 2 1 250MHz No 8-pin µMAX/SO
MAX4288 2 1 250MHz Yes 10-pin µMAX/14-pin SO
MAX4387 2 5 150MHz No 8-pin µMAX/SO
MAX4388 2 5 150MHz Yes 10-pin µMAX, 14-pin SO
Pin Configurations appear at end of data sheet.
MAX4285–MAX4288/MAX4387/MAX4388
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3V, V
EE
= 0, DISABLE_ = 3V, R
L
= ∞, V
CM
= 1V, and T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
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.
Supply Voltage (V
CC
- V
EE
) ...................................-0.3V to +7.5V
Input Voltage Range (IN+, IN-) ........(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Differential Input Voltage .......................................-0.3V to +7.5V
Voltage at
DISABLE .........................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Current into IN+, IN-, DISABLE ........................................±20mA
Output Short-Circuit Duration ........................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Guaranteed by CMRR test
MAX4_87EU_/MAX4_88EU_/MAX4_8_ES_
Guaranteed by PSRR test
mV
±0.1 ±8
Common mode (V
EE
≤ V
CM
≤ V
CC
- 1.25V)
MAX4287/88 and MAX4387/88
Differential (-10mV ≤ V
IN
≤ +10mV)
V
EE
≤ V
CM
≤
V
CC
- 1.25V
CONDITIONS
V
OS
Input Offset Voltage
µA
13 35
dB
50 73
CMRRCommon-Mode Rejection Ratio
µV/°C
26
TC
VOS
Input Offset-Voltage
Temperature Coefficient
V
V
EE
V
CC -
1.25
V
CM
V
2.85 6.5
Operating Supply Voltage
Range
Input Common-Mode Voltage
Range
I
B
Input Bias Current
µA
0.2 8
I
OS
Input Offset Current
R
IN
600
mV
±0.2
∆V
OS
Input Offset-Voltage Matching
kΩ
38
Input Resistance
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX4285EUT-T/MAX4286EUT-T
±1.5 ±12
MAX4_87EU_/
MAX4_88EU_/
MAX4_8_ES_
MAX4285EUT-T/
MAX4286EUT-T
45 68
R
L
= 2kΩ
R
L
= 100Ω
60 85
VEE + 0.4V ≤
V
OUT
≤ V
CC
- 0.4V
dB
75 94
A
VOL
Open-Loop Gain
65 94
R
L
= 300Ω
MAX4285–MAX4288/MAX4387/MAX4388
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V, V
EE
= 0, DISABLE_ = 3V, R
L
= ∞, V
CM
= 1V, and T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
DISABLE_ = V
EE
µA
±3 ±22
I
IL
CONDITIONS
DISABLE_ Logic Input
Low Current
DISABLE_ = V
CC
mA
±3 ±22
I
IH
DISABLE_ Logic Input
High Current
V
CC
= 3V
µA
20 24
I
SY
Quiescent Supply Current
(per Amplifier)
Normal mode
Disabled mode,
DISABLE_ = V
EE
13
V
CC
= 5V
23 28
Normal mode
Disabled mode,
DISABLE_ = V
EE
13
UNITSMIN TYP MAXSYMBOLPARAMETER
DISABLE_ = V
EE
, V
EE
≤ V
OUT
≤ V
CC
R
L
= 20Ω to V
EE
nA
700
I
LEAK
Disabled Output Leakage
Current
mA
77
I
OUT
Output Current Drive
R
L
= 20Ω to V
CC
106
V
CC
= 2.85V to 6.5V dB
40 50
PSRRPower-Supply Rejection Ratio
V
V
CC
- 2
V
IL
DISABLE_ Logic Low Threshold
DISABLE_ Logic High Threshold V
IH
V
CC
- 1
V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MAX4387EUA+

Mfr. #:
Buy MAX4387EUA+
Manufacturer:
Maxim Integrated
Description:
Operational Amplifiers - Op Amps 3V/5V 250MHz ADC Buffer Amp
Lifecycle:
New from this manufacturer.
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