19-0467; Rev 2; 5/97
UAL
IT MAN
TION K E
A
EVALU
BL
AVAILA
300MHz High-Speed Op Amp
____________________________Features
o
High Speed:
300MHz -3dB Bandwidth (A
V
= +1)
200MHz Full-Power Bandwidth (A
V
= +1, V
o
= 2Vp-p)
1100V/µs Slew Rate
130MHz 0.1dB Gain Flatness
o
Drives 100pF Capacitive Loads Without Oscillation
o
Low Differential Phase/Gain Error: 0.01°/0.01%
o
8mA Quiescent Current
o
Low Input-Referred Voltage Noise: 5nV/
√
Hz
o
Low Input-Referred Current Noise: 2pA/
√
Hz
o
Low Input Offset Voltage: 0.5mV
o
8000V ESD Protection
o
Voltage-Feedback Topology for Simple Design
Configurations
o
Short-Circuit Protected
o
Available in Space-Saving SOT23 Package
_______________General Description
The MAX477 is a ±5V wide-bandwidth, fast-settling,
unity-gain-stable op amp featuring low noise, low differ-
ential gain and phase errors, high slew rate, high preci-
sion, and high output current. The MAX477’s archi-
tecture uses a standard voltage-feedback topology that
can be configured into any desired gain setting, as with
other general-purpose op amps.
Unlike high-speed amplifiers using current-mode feed-
back architectures, the MAX477 has a unique input
stage that combines the benefits of the voltage-feed-
back design (flexibility in choice of feedback resistor,
two high-impedance inputs) with those of the current-
feedback design (high slew rate and full-power band-
width). It also has the precision of voltage-feedback
amplifiers, characterized by low input-offset voltage
and bias current, low noise, and high common-mode
and power-supply rejection.
The MAX477 is ideally suited for driving 50Ω or 75Ω
loads. Available in DIP, SO, space-saving µMAX, and
SOT23 packages.
MAX477
________________________Applications
Broadcast and High-Definition TV Systems
Video Switching and Routing
Communications
Medical Imaging
Precision DAC/ADC Buffer
______________Ordering Information
PART
MAX477EPA
MAX477ESA
MAX477EUA
MAX477EUK-T
MAX477MJA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-
PACKAGE
8 Plastic DIP
8 SO
8 µMAX
5 SOT23
8 CERDIP
SOT
TOP
MARK
—
—
—
ABYW
—
__________Typical Operating Circuit
__________________Pin Configuration
TOP VIEW
V
IN
75Ω
75Ω
V
OUT
OUT
1
75Ω
500Ω
500Ω
V
EE
2
MAX477
5
V
CC
N.C.
1
IN-
2
IN+
3
4
IN-
V
EE
4
MAX477
8
7
6
5
N.C.
V
CC
OUT
N.C.
MAX477
IN+
3
VIDEO/RF CABLE DRIVER
SOT23-5
DIP/SO/µMAX
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
300MHz High-Speed Op Amp
MAX477
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to V
EE
) ..................................................12V
Differential Input Voltage..................(V
CC
+ 0.3V) to (V
EE
- 0.3V)
Common-Mode Input Voltage..........(V
CC
+ 0.3V) to (V
EE
- 0.3V)
Output Short-Circuit Duration to GND........................Continuous
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C)..............727mW
SO (derate 5.88mW/°C above +70°C) ..........................471mW
µMAX (derate 4.1mW/°C above +70°C) .......................330mW
CERDIP (derate 8.00mW/°C above +70°C) ..................640mW
SOT23 (derate 7.1mW/°C above +70°C) ......................571mW
Operating Temperature Ranges
MAX477E_A ......................................................-40°C to +85°C
MAX477EUK .....................................................-40°C to +85°C
MAX477MJA ...................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+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
= -5V, V
OUT
= 0V, R
L
=
∞,
T
A
= T
MIN
to T
MAX,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
MAX477EUK
MAX477ESA/EPA/EUA/MJA
MAX477EUK
Input Offset-Voltage Drift
Input Bias Current
Input Offset Current
Differential-Mode Input
Resistance
Common-Mode Input Voltage
Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Open-Loop Voltage Gain
Open-Loop Voltage Gain
TCV
OS
I
B
I
OS
R
IN(DM)
V
CM
CMRR
PSRR
A
VOL
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
Either input
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
V
S
= ±4.5V to ±5.5V
V
OUT
= ±2.0V,
V
CM
= 0V, R
L
= 50Ω
T
A
= +25°C
Output Voltage Swing
Minimum Output Current
Short-Circuit Output Current
Open-Loop Output Resistance
Quiescent Supply Current
V
OUT
I
OUT
I
SC
R
OUT
I
SY
T
A
= T
MIN
to T
MAX
T
A
= -40 °C to +85 °C
Short to ground
V
OUT
= 0, f = DC
T
A
= +25°C
MAX477E_ _, T
A
= T
MIN
to T
MAX
MAX477MJA, T
A
= T
MIN
to T
MAX
MAX477E_A/477MJA
MAX477EUK
R
L
=
∞
R
L
= 100Ω
R
L
= 50Ω
V
CM
= ±3V
V
CM
= ±2.5V
±3.0
±2.5
70
60
70
55
50
±3.5
±3.0
±2.5
70
100
150
0.1
8
10
12
14
mA
mA
Ω
mA
mA
85
65
65
±3.9
V
90
1
±3.5
0.2
CONDITIONS
MAX477ESA/EPA/EUA/MJA
Input Offset Voltage
V
OS
T
A
= +25°C
T
A
= T
MIN
to
T
MAX
2
1
3
5.0
1.0
2.0
MIN
TYP
0.5
0.5
MAX
2.0
2.0
3.0
5.0
µV/°C
µA
µA
MΩ
V
dB
dB
dB
mV
UNITS
2
_______________________________________________________________________________________
300MHz High-Speed Op Amp
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, A
VCL
= +1, T
A
= +25°C, unless otherwise noted.)
PARAMETER
Small-Signal, -3dB Bandwidth
(Note 2)
Small-Signal, ±0.1dB
Gain Flatness (Note 2)
Full-Power Bandwidth
Slew Rate (Note 2)
Settling Time
Rise Time, Fall Time
Input Voltage Noise Density
Input Current Noise Density
Differential Gain (Note 3)
Differential Phase (Note 3)
Differential-Mode Input
Capacitance
Output Impedance
Total Harmonic Distortion
Spurious-Free Dynamic Range
Third-Order Intercept
SYMBOL
BW
-3dB
BW
0.1dB
FPBW
SR
t
S
t
R
, t
F
e
n
i
n
DG
DP
C
IN(DM)
Z
OUT
THD
SFDR
IP3
V
OUT
≤
0.1Vp-p
V
OUT
≤
0.1Vp-p
V
OUT
= 2Vp-p
V
OUT
= ±2Vp-p
V
OUT
= 2V Step
V
OUT
= 2V Step
f = 10MHz
f = 10MHz, either input
f = 3.58MHz
f = 3.58MHz
Either input
f = 10MHz
f
c
= 10MHz, V
OUT
= 2Vp-p
f = 5MHz, V
OUT
= 2Vp-p
f = 10MHz, V
OUT
= 2Vp-p
to 0.1%
to 0.01%
700
CONDITIONS
MIN
220
30
TYP
300
130
200
1100
10
12
2
5
2
0.01
0.01
1
2.5
-58
-74
36
MAX
UNITS
MHz
MHz
MHz
V/µs
ns
ns
nV/√Hz
pA/√Hz
%
degrees
pF
Ω
dB
dBc
dBm
MAX477
Note 1:
Specifications for the MAX477EUK (SOT23 package) are 100% tested at T
A
= +25°C, and guaranteed by design over
temperature.
Note 2:
Maximum AC specifications are guaranteed by sample test on the MAX477ESA only.
Note 3:
Tested with a 3.58MHz video test signal with an amplitude of 40IRE superimposed on a linear ramp (0 to 100IRE). An IRE is
a unit of video-signal amplitude developed by the Institute of Radio Engineers. 140IRE = 1V.
__________________________________________Typical Operating Characteristics
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, C
L
= 0pF, T
A
= +25°C, unless otherwise noted.)
SMALL-SIGNAL GAIN
vs. FREQUENCY (A
VCL
= +1V/V)
MAX477-01
SMALL-SIGNAL GAIN vs.
FREQUENCY (A
VCL
= +2V/V)
MAX477-02
SMALL-SIGNAL GAIN vs.
FREQUENCY (A
VCL
= +10V/V)
21
20
19
GAIN (dB)
18
17
16
15
14
13
12
MAX477-03
2
1
0
-1
GAIN (dB)
8
7
6
5
GAIN (dB)
4
3
2
1
0
-1
-2
22
-2
-3
-4
-5
-6
-7
-8
1M
10M
100M
1G
FREQUENCY (Hz)
1M
10M
100M
1G
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
3
300MHz High-Speed Op Amp
MAX477
____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, C
L
= 0pF, T
A
= +25°C, unless otherwise noted.)
GAIN FLATNESS
vs. FREQUENCY (A
VCL
= +1V/V)
MAX477-04
LARGE-SIGNAL GAIN
vs. FREQUENCY (A
VCL
= +1V/V)
2
1
0
GAIN (dB)
-1
-2
-3
-4
-5
-6
VOLTAGE
(100mV/div)
OUT
MAX477-05
SMALL-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V)
0.2
0.1
0
GAIN (dB)
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
1M
10M
100M
3
IN
GND
GND
1G
1M
10M
100M
1G
TIME (10ns/div)
FREQUENCY (Hz)
FREQUENCY (Hz)
SMALL-SIGNAL PULSE RESPONSE
(A
VCL
= +2V/V)
SMALL-SIGNAL PULSE RESPONSE
(A
VCL
= +10V/V)
LARGE-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V)
IN
(50mV/
div)
VOLTAGE
OUT
(100mV/
div)
GND
IN
(50mV/
div)
VOLTAGE
GND
IN
VOLTAGE
(2V/div)
GND
GND
OUT
(500mV/
div)
GND
OUT
GND
TIME (10ns/div)
TIME (50ns/div)
TIME (10ns/div)
LARGE-SIGNAL PULSE RESPONSE
(A
VCL
= +2V/V)
LARGE-SIGNAL PULSE RESPONSE
(A
VCL
= +10V/V)
SMALL-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V, C
L
= 50pF)
IN
(1V/div)
VOLTAGE
GND
IN
(200mV/
div)
VOLTAGE
GND
IN
VOLTAGE
(100mV/div)
GND
OUT
GND
OUT
(2V/div)
GND
OUT
(2V/div)
GND
TIME (10ns/div)
TIME (50ns/div)
TIME (20ns/div)
4
_______________________________________________________________________________________
300MHz High-Speed Op Amp
____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω, C
L
= 0pF, T
A
= +25°C, unless otherwise noted.)
MAX477
SMALL-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V, C
L
= 100pF)
LARGE-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V, C
L
= 50pF)
LARGE-SIGNAL PULSE RESPONSE
(A
VCL
= +1V/V, C
L
= 100pF)
GND
IN
VOLTAGE
(100mV/div)
OUT
GND
IN
VOLTAGE
(2V/div)
OUT
GND
IN
VOLTAGE
(2V/div)
GND
OUT
GND
GND
TIME (20ns/div)
TIME (20ns/div)
TIME (20ns/div)
INPUT OFFSET VOLTAGE (V
OS
)
vs. TEMPERATURE
MAX477-17
QUIESCENT SUPPLY CURRENT (I
SY
)
vs. TEMPERATURE
MAX477-18
INPUT BIAS CURRENT (I
B
)
vs. TEMPERATURE
V
CM
= 0V
MAX477-19
400
INPUT OFFSET VOLTAGE (µV)
300
200
100
0
-100
-200
-300
-50
-25
0
25
50
75
100
V
CM
= 0V
14
QUIESCENT SUPPLY CURRENT (mA)
12
10
8
6
4
2
0
3.5
3.0
INPUT BIAS CURRENT (µA)
2.5
2.0
1.5
1.0
0.5
0
-50
125
-50
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
TEMPERATURE (˚C)
TEMPERATURE (˚C)
TEMPERATURE (˚C)
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
MAX477-20
INPUT COMMON-MODE RANGE (V
CM
)
vs. TEMPERATURE
MAX477-21
4.2
4.0
COMMON-MODE RANGE (±V)
3.8
3.6
3.4
3.2
3.0
OUTPUT VOLTAGE SWING (±V)
4.0
R
L
=
8
3.5
R
L
= 100Ω
R
L
= 50Ω
3.0
2.5
-50
2.8
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
TEMPERATURE (˚C)
TEMPERATURE (˚C)
_______________________________________________________________________________________
5
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