19-4754; Rev 1; 8/01
High-Speed, Single-Supply, Gain of 2,
Closed-Loop, Rail-to-Rail Buffers with Enable
_________________General Description
The MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
are precision, closed-loop, gain of +2 (or -1) buffers
featuring high slew rates, high output current drive, and
low differential gain and phase error. They operate with
a single 3.15V to 11V supply or with ±1.575V to ±5.5V
dual supplies. The input common-mode voltage range
extends 100mV beyond the negative power-supply rail,
and the output swings Rail-to-Rail
®
.
These devices require only 5.5mA of quiescent supply
current while achieving a 230MHz -3dB bandwidth and
a 600V/µs slew rate. In addition, the MAX4215/
MAX4219 have a disable feature that reduces the sup-
ply current to 400µA per buffer. Input voltage noise is
only 10nV/√Hz, and input current noise is only
1.3pA/√Hz. This buffer family is ideal for low-power/low-
voltage applications requiring wide bandwidth, such as
video, communications, and instrumentation systems.
For space-sensitive applications, the MAX4214 comes
in a miniature 5-pin SOT23 package.
____________________________Features
o
Internal Precision Resistors for Closed-Loop
Gains of +2V/V or -1V/V
o
High Speed
230MHz -3dB Bandwidth
90MHz 0.1dB Gain Flatness
(MAX4219/MAX4222)
600V/µs Slew Rate
o
Single 3.3V/5.0V Operation
o
Outputs Swing Rail-to-Rail
o
Input Common-Mode Range Extends Beyond V
EE
o
Low Differential Gain/Phase Error: 0.03%/0.04°
o
Low Distortion at 5MHz
-72dBc SFDR
-71dB Total Harmonic Distortion
o
High Output Drive: ±120mA
o
Low 5.5mA Supply Current
o
400µA Shutdown Supply Current
(MAX4215/MAX4219)
o
Space-Saving SOT23, µMAX, or QSOP Packages
MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
_______________Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
5 SOT23-5
8 SO
8 µMAX
8 SO
8 µMAX
14 SO
16 QSOP
14 SO
16 QSOP
TOP
MARK
ABAH
—
—
—
—
—
—
—
—
MAX4214EUK-T
-40°C to +85°C
MAX4215ESA
MAX4215EUA
MAX4217ESA
MAX4217EUA
MAX4219ESD
MAX4219EEE
MAX4222ESD
MAX4222EEE
-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
______________________Selector Guide
PART
MAX4214
MAX4215
MAX4217
MAX4219
MAX4222
NO. OF
AMPS
1
1
2
3
4
ENABLE
No
Yes
No
Yes
No
PIN-PACKAGE
5 SOT23
8 SO/µMAX
8 SO/µMAX
14 SO, 16 QSOP
14 SO, 16 QSOP
________________________Applications
Battery-Powered Instruments
Video Line Drivers
Analog-to-Digital Converter Interface
CCD Imaging Systems
Video Routing and Switching Systems
Video Multiplexing Applications
__________________Pin Configurations
TOP VIEW
OUT
1
5
V
CC
V
EE
2
MAX4214
IN+
3
4
IN-
Typical Application Circuit appears at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SOT23-5
Pin Configurations continued at end of data sheet.
________________________________________________________________
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.
High-Speed, Single-Supply, Gain of 2,
Closed-Loop, Rail-to-Rail Buffers with Enable
MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to V
EE
) ..................................................12V
IN_-, IN_+, OUT_, EN_ ....................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
Output Short-Circuit Duration to V
CC
or V
EE
..............Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW
8-Pin SO (derate 5.9mW/°C above +70°C)...................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +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, IN_- = 0, EN_ = 5V, R
L
=
∞
to 0, V
OUT
= V
CC
/2, noninverting configuration, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Operating Supply Voltage
Range
Input Voltage Range
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Voltage
Matching
Input Bias Current
Input Resistance
Voltage Gain
Power-Supply
Rejection Ratio
(Note 2)
Output Resistance
Output Current
Short-Circuit Output
Current
I
B
R
IN
A
V
PSRR
R
OUT
I
OUT
I
SC
V
IN
V
OS
TCV
OS
Between any two channels for
MAX4217/MAX4219/MAX4222
IN_+
IN_+, over input voltage range
R
L
≥
50Ω, (V
EE
+ 0.5V)
≤
V
OUT
≤
(V
CC
- 2.0V)
V
CC
= 5V, V
EE
= 0, V
OUT
= 2.0V
V
CC
= 5V, V
EE
= -5V, V
OUT
= 0
V
CC
= 3.3V, V
EE
= 0, V
OUT
= 0.90V
f = DC
R
L
= 20Ω to V
CC
or V
EE
Sinking or sourcing
R
L
= 50Ω
Output Voltage Swing
V
OUT
R
L
= 150Ω
R
L
= 2kΩ
Disabled Output
Resistance
EN_ Logic Low Threshold
EN_ Logic High Threshold
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
V
OL
- V
EE
V
CC
- V
OH
V
OL
- V
EE
T
A
= +25°C
T
A
= T
MIN
to T
MAX
±70
±60
±150
1.60
0.04
0.75
0.04
0.06
0.06
1
V
CC
- 2.6
V
CC
- 1.6
kΩ
V
V
1.90
0.075
1.00
0.075
V
1.9
55
60
SYMBOL
CONDITIONS
V
CC
to V
EE
, guaranteed by PSRR tests
IN_+
IN_-
R
L
= 50Ω
SO, QSOP
SOT23-5, µMAX
MIN
3.15
V
EE
- 0.1
V
EE
- 0.1
4
4
8
1
5.4
3
2
58
66
45
25
±120
mΩ
mA
mA
dB
2.1
12
TYP
MAX
11.0
V
CC
- 2.25
V
CC
+ 0.1
10
15
UNITS
V
V
mV
µV/°C
mV
µA
MΩ
V/V
R
OUT(OFF)
MAX4215/MAX4219, EN_ = 0, 0
≤
V
OUT
≤
5V
V
IL
V
IH
MAX4215/MAX4219
MAX4215/MAX4219
2
_______________________________________________________________________________________
High-Speed, Single-Supply, Gain of 2,
Closed-Loop, Rail-to-Rail Buffers with Enable
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
EE
= 0, IN_- = 0, EN_ = 5V, R
L
=
∞
to 0, V
OUT
= V
CC
/2, noninverting configuration, T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
EN_ Logic Input Low
Current
EN_ Logic Input High
Current
Quiescent Supply
Current (per Buffer)
Shutdown Supply Current
SYMBOL
I
IL
I
IH
I
CC
I
SD
MAX4215/MAX4219, disabled (EN_ = V
EE
)
CONDITIONS
MAX4215/MAX4219, (V
EE
+ 0.2V)
≤
EN_
≤
V
CC
MAX4215/MAX4219, EN_ = V
EE
MAX4215/MAX4219, EN_ = V
CC
MIN
TYP
0.5
200
0.5
5.5
400
350
10
7.0
550
MAX
UNITS
µA
µA
mA
µA
MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
Note 1:
The MAX421_EU_ is 100% production tested at T
A
= 25°C. Specifications over temperature limits are guaranteed by design.
Note 2:
PSRR for single 5V supply tested with V
EE
= 0, V
CC
= 4.5V to 5.5V; for dual ±5V supply with V
EE
= -4.5V to -5.5V,
V
CC
= 4.5V to 5.5V; and for single 3V supply with V
EE
= 0, V
CC
= 3.15V to 3.45V.
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, V
EE
= 0, IN_- = 0, EN_ = 5V, R
L
= 100Ω to V
CC
/2, noninverting configuration, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
Small-Signal -3dB
Bandwidth
Full-Power -3dB
Bandwidth
Bandwidth for 0.1dB Gain
Flatness
Slew Rate
Settling Time to 0.1%
Rise/Fall Time
Spurious-Free Dynamic
Range
Harmonic Distortion
Third-Order Intercept
Input 1dB Compression
Point
Differential Phase Error
Differential Gain Error
Input Noise-Voltage
Density
Input Noise-Current
Density
Input Capacitance
Disabled Output
Capacitance
DP
DG
e
n
i
n
C
IN
C
OUT(OFF)
MAX4215/MAX4219, EN_ = 0
SYMBOL
BW
-3dB
FPBW
BW
0.1dB
SR
t
S
t
R
, t
F
SFDR
V
OUT
=
100mV
P-P
V
OUT
=
2V
P-P
V
OUT
=
100mV
P-P
CONDITIONS
MAX4214/MAX4215/MAX4217
MAX4219/MAX4222
MAX4214/MAX4215/MAX4217
MAX4219/MAX4222
MAX4214/MAX4215/MAX4217
MAX4219/MAX4222
MIN
TYP
230
200
220
200
50
90
600
45
1
-72
Second harmonic
HD
IP3
V
OUT
= 2V
P-P
,
f
C
= 5MHz
f = 10MHz
f = 10MHz
NTSC, R
L
= 150Ω
NTSC, R
L
= 150Ω
f = 10kHz
f = 10kHz
Third harmonic
Total harmonic distortion
-72
-77
-71
35
11
0.04
0.03
10
1.3
1
2
dBm
dBm
degrees
%
nV/√Hz
pA/√Hz
pF
pF
dBc
MAX
UNITS
MHz
MHz
MHz
V/µs
ns
ns
dBc
V
OUT
= 2V step
V
OUT
= 2V step
V
OUT
= 100mV
P-P
f
C
= 5MHz, V
OUT
= 2V
P-P
_______________________________________________________________________________________
3
High-Speed, Single-Supply, Gain of 2,
Closed-Loop, Rail-to-Rail Buffers with Enable
MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
EE
= 0, IN_- = 0, EN_ = 5V, R
L
= 100Ω to V
CC
/2, noninverting configuration, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
Output Impedance
Buffer Enable Time
Buffer Disable Time
Buffer Gain Matching
All-Hostile Crosstalk
X
TALK
SYMBOL
Z
OUT
t
ON
t
OFF
f = 10MHz
MAX4215/MAX4219
MAX4215/MAX4219
MAX4217/MAX4219/MAX4222, f = 10MHz,
V
OUT
= 100mV
P-P
MAX4217/MAX4219/MAX4222, f = 10MHz,
V
OUT
= 2V
P-P
CONDITIONS
MIN
TYP
200
100
1
0.1
-95
MAX
UNITS
mΩ
ns
µs
dB
dB
__________________________________________Typical Operating Characteristics
(V
CC
= 5V, V
EE
= 0, A
VCL
= 2V/V, R
L
= 100Ω to V
CC
/2, T
A
= +25°C, unless otherwise noted.)
MAX4214/MAX4215/MAX4217
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4214 toc01
MAX4214/MAX4215/MAX4217
GAIN FLATNESS vs. FREQUENCY
MAX4214 toc02
MAX4214/MAX4215/MAX4217
LARGE-SIGNAL GAIN vs. FREQUENCY
9
8
7
GAIN (dB)
6
5
4
3
2
1
0
V
OUT
= 2V
P-P
MAX4214 toc03
10
9
8
7
GAIN (dB)
V
OUT
= 100mV
P-P
6.5
6.4
6.3
6.2
GAIN (dB)
6.1
6.0
5.9
5.8
5.7
5.6
V
OUT
= 100mV
P-P
10
6
5
4
3
2
1
0
100k
1M
10M
FREQUENCY (Hz)
100M
1G
5.5
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
MAX4219/MAX4222
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4214 toc04
MAX4219/MAX4222
GAIN FLATNESS vs. FREQUENCY
MAX4214 toc05
MAX4219/MAX4222
LARGE-SIGNAL GAIN vs. FREQUENCY
9
8
7
GAIN (dB)
6
5
4
3
2
1
V
OUT
= 2V
P-P
R
L
= 100Ω
MAX4214 toc06
10
9
8
7
GAIN (dB)
V
OUT
= 100mV
P-P
6.5
6.4
6.3
6.2
GAIN (dB)
6.1
6.0
5.9
5.8
5.7
5.6
5.5
V
OUT
= 100mV
P-P
10
6
5
4
3
2
1
0
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
100M
1G
0
100k
1M
10M
FREQUENCY (Hz)
100M
1G
4
_______________________________________________________________________________________
High-Speed, Single-Supply, Gain of 2,
Closed-Loop, Rail-to-Rail Buffers with Enable
_____________________________Typical Operating Characteristics (continued)
(V
CC
= 5V, V
EE
= 0, A
VCL
= 2V/V, R
L
= 100Ω to V
CC
/2, T
A
= +25°C, unless otherwise noted.)
HARMONIC DISTORTION
vs. FREQUENCY
MAX4214 toc07
MAX4214/MAX4215/MAX4217/MAX4219/MAX4222
HARMONIC DISTORTION
vs. RESISTIVE LOAD
MAX4214 toc08
HARMONIC DISTORTION
vs. VOLTAGE SWING
-10
HARMONIC DISTORTION (dBc)
-20
-30
-40
-50
-60
-70
-80
-90
-100
1k
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3RD HARMONIC
2ND HARMONIC
f = 5MHz
MAX4214 toc09
0
-10
HARMONIC DISTORTION (dBc)
-20
-30
-40
-50
-60
-70
-80
-90
-100
100k
1M
10M
2ND HARMONIC
V
OUT
= 2V
P-P
0
-10
HARMONIC DISTORTION (dBc)
-20
-30
-40
-50
-60
-70
-80
-90
-100
2ND HARMONIC
3RD HARMONIC
V
OUT
= 2V
P-P
f = 5MHz
0
3RD HARMONIC
100M
0 100 200 300 400 500 600 700 800 900
RESISTIVE LOAD (Ω)
FREQUENCY (Hz)
VOLTAGE SWING (Vp-p)
VOLTAGE-NOISE DENSITY
vs. FREQUENCY
MAX4214 toc10
CURRENT-NOISE DENSITY
vs. FREQUENCY
MAX4214 toc11
MAX4217/MAX4219/MAX4222
CROSSTALK vs. FREQUENCY
30
10
CROSSTALK (dB)
-10
-30
-50
-70
-90
-110
-130
MAX4214 toc12
100
10
50
NOISE (nV/√Hz)
10
NOISE (pA/
√Hz)
1
1
10
100
1k
10k 100k
1M
10M
FREQUENCY (Hz)
1
1
10
100
1k
10k 100k
1M
10M
FREQUENCY (Hz)
-150
100k
1M
10M
FREQUENCY (Hz)
100M
1G
POWER-SUPPLY REJECTION
vs. FREQUENCY
MAX4214 toc13
MAX4215/MAX4219
OFF-ISOLATION vs. FREQUENCY
0
-10
OFF-ISOLATION (dB)
-20
-30
-40
-50
-60
-70
-80
0.01
100k
1M
10M
FREQUENCY (Hz)
100M
MAX4214 toc14
CLOSED-LOOP OUTPUT IMPEDANCE
vs. FREQUENCY
MAX4214 toc15
20
10
POWER-SUPPLY REJECTION (dB)
0
-10
-20
-30
-40
-50
-60
-70
-80
100k
1M
10M
FREQUENCY (Hz)
100M
10
100
10
IMPEDANCE (Ω)
1
0.1
-90
100k
1M
10M
FREQUENCY (Hz)
100M
1G
_______________________________________________________________________________________
5
TI技术论坛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
