OPA3355EA/2K5 [TI]
200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN;
| 型号： | OPA3355EA/2K5 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN 放大器 光电二极管 |
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| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OPA355
OPA2355
OPA3355
O
P
A
3
5
5
O
P
A
2
3
5
5
®
O
P
A
3
3
5
5
O
P
A
3
35
5
SBOS195D – MARCH 2001 – REVISED JANUARY 2004
200MHz, CMOS
OPERATIONAL AMPLIFIER WITH SHUTDOWN
DESCRIPTION
FEATURES
The OPA355 series high-speed, voltage-feedback CMOS
operational amplifiers are designed for video and other
applications requiring wide bandwidth. The OPA355 is unity-
gain stable and can drive large output currents. In addition,
the OPA355 has a digital shutdown (Enable) function. This
feature provides power savings during idle periods and
places the output in a high-impedance state to support output
multiplexing. Differential gain is 0.02% and differential phase
is 0.05°. Quiescent current is only 8.3mA per channel.
● UNITY-GAIN BANDWIDTH: 450MHz
● WIDE BANDWIDTH: 200MHz GBW
● HIGH SLEW RATE: 360V/µs
● LOW NOISE: 5.8nV/√Hz
● EXCELLENT VIDEO PERFORMANCE:
DIFF GAIN: 0.02%, DIFF PHASE: 0.05°
0.1dB GAIN FLATNESS: 75MHz
● INPUT RANGE INCLUDES GROUND
● RAIL-TO-RAIL OUTPUT (within 100mV)
● LOW INPUT BIAS CURRENT: 3pA
● LOW SHUTDOWN CURRENT: 3.4µA
● ENABLE/DISABLE TIME: 100ns/30ns
● THERMAL SHUTDOWN
The OPA355 is optimized for operation on single or dual
supplies as low as 2.5V (±1.25V) and up to 5.5V (±2.75V).
Common-mode input range for the OPA355 extends 100mV
below ground and up to 1.5V from V+. The output swing is
within 100mV of the rails, supporting wide dynamic range.
The OPA355 series is available in single (SOT23-6 and
SO-8), dual (MSOP-10), and triple (TSSOP-14 and SO-14)
versions. Multichannel versions feature completely indepen-
dent circuitry for lowest crosstalk and freedom from interac-
tion. All are specified over the extended –40°C to +125°C
range.
● SINGLE-SUPPLY OPERATING RANGE: 2.5V to 5.5V
● MicroSIZE PACKAGES
APPLICATIONS
● VIDEO PROCESSING
OPA355 RELATED PRODUCTS
● ULTRASOUND
FEATURES
PRODUCT
● OPTICAL NETWORKING, TUNABLE LASERS
● PHOTODIODE TRANSIMPEDANCE AMPS
● ACTIVE FILTERS
200MHz, Rail-to-Rail Output, CMOS, No Shutdown
38MHz, Rail-to-Rail Input/Output, CMOS
75MHz, Rail-to-Rail Output
OPA356
OPAx350
OPAx631
OPAx634
THS412x
150MHz, Rail-to-Rail Output
Differential Input/Output, 3.3V Supply
● HIGH-SPEED INTEGRATORS
● ANALOG-TO-DIGITAL (A/D) CONVERTER
V+
INPUT BUFFERS
● DIGITAL-TO-ANALOG (D/A) CONVERTER
–VIN
OUTPUT AMPLIFIERS
Out
OPA355
+VIN
● BARCODE SCANNERS
● COMMUNICATIONS
V– Enable
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2001-2004, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
Supply Voltage, V+ to V– ................................................................... 7.5V
Signal Input Terminals, Voltage(2) .................... (V–) – 0.5V to (V+) + 0.5V
Current(2) ..................................................... 10mA
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
Enable Input ...................................................... (V–) – 0.5V to (V+) + 0.5V
Output Short-Circuit(3) .............................................................. Continuous
Operating Temperature .................................................. –55°C to +150°C
Storage Temperature ...................................................... –65°C to +150°C
Junction Temperature .................................................................... +160°C
Lead Temperature (soldering, 10s) ............................................... +300°C
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those specified is not implied.
(2) Input terminals are diode-clamped to the power-supply rails. Input signals
that can swing more than 0.5V beyond the supply rails should be current limited
to 10mA or less. (3) Short-circuit to ground, one amplifier per package.
PACKAGE/ORDERING INFORMATION(1)
PACKAGE
PRODUCT
PACKAGE-LEAD
MARKING
OPA355
SOT23-6
C55
"
"
"
OPA355
SO-8
OPA355UA
"
"
"
OPA2355
MSOP-10
D55
"
"
"
OPA3355
TSSOP-14
OPA3355EA
"
"
"
OPA3355
SO-14
OPA3355UA
"
"
"
NOTE: (1) For the most current package and ordering information, see the
Package Option Addendum located at the end of this data sheet.
PIN CONFIGURATIONS
Top View
OPA355
OPA355
Out
V–
1
2
3
6
5
4
V+
NC(2)
–In
1
2
3
4
8
7
6
5
Enable
V+
Enable
–In
+In
Out
+In
NC(2)
V–
SOT23-6(1)
NOTES: (1) Pin 1 of the SOT23-6 is
SO-8
determined by orienting the package marking
as indicated in the diagram. (2) NC indicates
no internal connection.
OPA2355
OPA3355
Out A
1
2
3
4
5
10 V+
Enable A
Enable B
1
2
3
4
5
6
7
14 Out C
–In A
+In A
9
8
7
6
Out B
–In B
13 –In C
12 +In C
11 V–
C
A
Enable C
V+
B
V–
+In B
Enable A
Enable B
+In A
–In A
Out A
10 +In B
A
B
9
8
–In B
MSOP-10
Out B
SO-14
TSSOP-14
OPA355, 2355, 3355
2
SBOS195D
www.ti.com
ELECTRICAL CHARACTERISTICS: VS = +2.7V to +5.5V Single-Supply
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, RF = 604Ω, RL = 150Ω, and connected to VS/2, unless otherwise noted.
OPA355
OPA2355
OPA3355
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
VOS
VS = +5V
±2
±9
mV
mV
Specified Temperature Range
Specified Temperature Range
VS = +2.7V to +5.5V, VCM = VS/2 – 0.15V
±15
vs Temperature
dVOS/dT
±7
±80
µV/°C
µV/V
vs Power Supply
PSRR
±350
INPUT BIAS CURRENT
Input Bias Current
IB
3
±50
±50
pA
pA
Input Offset Current
IOS
±1
NOISE
√Hz
nV/
Input Noise Voltage Density
Current Noise Density
en
in
f = 1MHz
f = 1MHz
5.8
50
√Hz
fA/
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
VCM
(V–) – 0.1
(V+) – 1.5
V
CMRR
VS = +5.5V, –0.1V < VCM < +4.0V
66
80
dB
Specified Temperature Range
66
dB
INPUT IMPEDANCE
Differential
1013 || 1.5
1013 || 1.5
Ω || pF
Ω || pF
Common-Mode
OPEN-LOOP GAIN
VS = +5V, 0.3V < VO < 4.7V
VS = +5V, 0.3V < VO < 4.7V
VS = +5V, 0.4V < VO < 4.6V
84
80
80
92
dB
dB
dB
OPA355
OPA2355, OPA3355
FREQUENCY RESPONSE
Small-Signal Bandwidth
f–3dB
f–3dB
f–3dB
f–3dB
GBW
f0.1dB
SR
G
= +1, VO = 100mVp-p, RF = 0Ω
= +2, VO = 100mVp-p, RL = 50Ω
= +2, VO = 100mVp-p, RL = 150Ω
= +2, VO = 100mVp-p, RL = 1kΩ
G = +10, RL = 1kΩ
450
100
170
200
200
75
MHz
MHz
MHz
MHz
MHz
MHz
V/µs
ns
G
G
G
Gain-Bandwidth Product
Bandwidth for 0.1dB Gain Flatness
Slew Rate
G
= +2, VO = 100mVp-p, RF = 560Ω
VS = +5V, G = +2, 4V Output Step
G = +2, VO = 200mVp-p, 10% to 90%
300/–360
2.4
Rise-and-Fall Time
G
= +2, VO = 2Vp-p, 10% to 90%
8
ns
Settling Time, 0.1%
0.01%
VS = +5V, G = +2, 2V Output Step
VS = +5V, G = +2, 2V Output Step
VIN • Gain = VS
30
ns
120
8
ns
Overload Recovery Time
Harmonic Distortion
2nd-Harmonic
ns
G = +2, f = 1MHz, VO = 2Vp-p, RL = 200Ω
G = +2, f = 1MHz, VO = 2Vp-p, RL = 200Ω
NTSC, RL = 150Ω
–81
–93
0.02
0.05
–90
–70
dBc
dBc
%
3rd-Harmonic
Differential Gain Error
Differential Phase Error
Channel-to-Channel Crosstalk
NTSC, RL = 150Ω
degrees
dB
OPA2355
OPA3355
f = 5MHz
f = 5MHz
dB
OUTPUT
Voltage Output Swing from Rail
Voltage Output Swing from Rail
Output Current, Continuous(1)
Output Current, Peak(1)
V
S = +5V, RL = 150Ω, AOL > 84dB
0.2
0.1
0.3
V
V
V
S = +5V, RL = 1kΩ
IO
IO
IO
±60
±100
±80
0.02
mA
mA
mA
Ω
VS = +5V
VS = +3V
f < 100kHz
Output Current, Peak(1)
Closed-Loop Output Impedance
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
VS
IQ
2.7
5.5
V
V
2.5 to 5.5
8.3
VS = +5V, Enabled, IO = 0
Specified Temperature Range
11
mA
mA
14
NOTES: (1) See typical characteristic Output Voltage Swing vs Output Current. (2) Logic LOW and HIGH levels are CMOS logic compatible. They are referenced to V–.
OPA355, 2355, 3355
3
SBOS195D
www.ti.com
ELECTRICAL CHARACTERISTICS: VS = +2.7V to +5.5V Single-Supply (Cont.)
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, RF = 604Ω, RL = 150Ω, and connected to VS/2, unless otherwise noted.
OPA355
OPA2355
OPA3355
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
SHUTDOWN
Disabled (Logic-LOW Threshold)(2)
Enabled (Logic-HIGH Threshold)(2)
Enable Time
0.8
V
V
2
100
30
ns
ns
µA
Disable Time
Shutdown Current (per amplifier)
VS = +5V, Disabled
3.4
6
THERMAL SHUTDOWN
Junction Temperature
Shutdown
160
140
°C
°C
Reset from Shutdown
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
–40
–55
–65
125
150
150
°C
°C
°C
Thermal Resistance
SOT-23-6, MSOP-10
SO-8
θJA
°C/W
°C/W
°C/W
°C/W
150
125
100
SO-14, TSSOP-14
NOTES: (1) See typical characteristic Output Voltage Swing vs Output Current. (2) Logic LOW and HIGH levels are CMOS logic compatible. They are referenced to V–.
OPA355, 2355, 3355
4
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
NONINVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
6
3
3
0
VO = 0.1Vp-p
VO = 0.1Vp-p
G = +1
RF = 0
G = –1
G = –2
0
–3
G = –5
–3
–6
–9
–12
–15
–6
G = +2
G = +5
G = +10
G = –10
–9
–12
–15
100k
1M
10M
100M
1G
100k
1M
10M
Frequency (Hz)
100M
1G
Frequency (Hz)
NON-INVERTING SMALL-SIGNAL
STEP RESPONSE
NONINVERTING LARGE-SIGNAL
STEP RESPONSE
G = +2
G = +2
Time (20ns/div)
Time (20ns/div)
LARGE-SIGNAL DISABLE/ENABLE
RESPONSE
0.1dB GAIN FLATNESS FOR VARIOUS RF
0.5
0.4
Enabled
VO = 0.1Vp-p
L = 0pF
4.5
3.5
2.5
1.5
0.5
C
fIN = 5MHz
RF = 604Ω
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
RF = 560Ω
VOUT
Disabled
RF = 500Ω
Time (200ns/div)
1
10
Frequency (MHz)
100
OPA355, 2355, 3355
5
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
HARMONIC DISTORTION vs OUTPUT VOLTAGE
HARMONIC DISTORTION vs NONINVERTING GAIN
–50
–60
–50
–60
f = 1MHz
VO = 2Vp-p
f = 1MHz
RL = 200Ω
RL = 200Ω
–70
–70
2nd-Harmonic
2nd Harmonic
3rd Harmonic
–80
–80
3rd-Harmonic
–90
–90
–100
–100
0
1
2
3
4
1
10
Output Voltage (Vp-p)
Gain (V/V)
HARMONIC DISTORTION vs INVERTING GAIN
HARMONIC DISTORTION vs FREQUENCY
–50
–60
–50
–60
VO = 2Vp-p
RL = 200Ω
VO = 2Vp-p
f = 1MHz
RL = 200Ω
2nd-Harmonic
–70
–70
2nd-Harmonic
–80
–80
3rd-Harmonic
3rd-Harmonic
–90
–90
–100
–100
1
10
100k
1M
Frequency (Hz)
10M
Gain (V/V)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
HARMONIC DISTORTION vs LOAD RESISTANCE
–50
–60
10k
VO = 2Vp-p
f = 1MHz
1k
100
10
Current Noise
Voltage Noise
–70
–80
2nd-Harmonic
3rd-Harmonic
–90
–100
1
100
1k
10
100
1k
10k
100k
1M
10M
100M
RL (Ω)
Frequency (Hz)
OPA355, 2355, 3355
6
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
FREQUENCY RESPONSE FOR VARIOUS RL
RL = 10kΩ
FREQUENCY RESPONSE FOR VARIOUS CL
3
0
9
6
CL = 100pF
CL = 47pF
RS = 0Ω
O = 0.1Vp-p
V
3
CL = 0pF
–3
VO = 0.1Vp-p
0
RL = 50Ω
RL = 150Ω
–6
–3
–6
–9
–12
–15
CL = 5.6pF
–9
RL = 1kΩ
–12
–15
100k
1M
10M
100M
1G
100k
1M
10M
100M
1G
Frequency (Hz)
Frequency (Hz)
RECOMMENDED RS vs CAPACITIVE LOAD
FREQUENCY RESPONSE vs CAPACITIVE LOAD
120
100
80
60
40
20
0
3
G = +2
O = 0.1Vp-p
V
0
–3
CL = 5.6pF
S = 80Ω
CL = 100pF
RS = 24Ω
R
VIN
RS
–6
VO
1kΩ
OPA355
VIN
RS
CL = 47pF
S = 36Ω
VO
OPA355
R
CL
–9
CL
1kΩ
604Ω
604Ω
(1kΩ is
Optional)
(1kΩ is
Optional)
–12
–15
604Ω
604Ω
1
10
100
1M
10M
100M
1G
Capacitive Load (pF)
Frequency (Hz)
COMMON-MODE REJECTION RATIO AND
POWER-SUPPLY REJECTION RATIO vs FREQUENCY
OPEN-LOOP GAIN AND PHASE
180
160
140
120
100
80
100
90
80
70
60
50
40
30
20
10
0
–PSRR
+PSRR
Phase
CMRR
60
Gain
40
20
RL = 1kΩ
RL = 150kΩ
0
–20
1k
10k
100k
1M
10M
100M
1G
10k
100k
1M
10M
100M
1G
Frequency (Hz)
Frequency (Hz)
OPA355, 2355, 3355
7
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
COMPOSITE VIDEO
DIFFERENTIAL GAIN AND PHASE
INPUT BIAS CURRENT vs TEMPERATURE
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
10n
1n
100
10
1
dP
dG
1
2
3
4
–55 –35 –15
5
25
45
65
85 105 125 135
Number of 150Ω Loads
Temperature (°C)
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
FOR VS = 3V
SUPPLY CURRENT vs TEMPERATURE
VS = 5.5V
3
2
1
0
14
12
10
8
25°C
–55°C
125°C
Continuous currents above
60mA are not recommended.
6
125°C
VS = 2.5V
VS = 3V
4
VS = 5V
–55°C
25°C
2
0
0
30
60
90
120
150
–55 –35 –15
5
25
45
65
85 105 125 135
Output Current (mA)
Temperature (°C)
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
FOR VS = 5V
SHUTDOWN CURRENT vs TEMPERATURE
VS = 5.5V
5
4
3
2
1
0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
25°C
–55°C
VS = 5V
125°C
Continuous currents above
60mA are not recommended.
125°C
VS = 3V
VS = 2.5V
–55°C
25°C
0
50
100
150
200
250
–55 –35 –15
5
25
45
65
85 105 125 135
Output Current (mA)
Temperature (°C)
OPA355, 2355, 3355
8
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
VS = 5.5V
100
10
6
5
4
3
2
1
0
Maximum Output
Voltage without
Slew-Rate
1
Induced Distortion
OPA355
VS = 2.7V
0.1
ZO
604Ω
0.01
0.001
604Ω
10k
100k
1M
10M
100M
1G
1
10
Frequency (MHz)
100
Frequency (Hz)
OPEN-LOOP GAIN vs TEMPERATURE
OUTPUT SETTLING TIME TO 0.1%
VO = 2Vp-p
110
0.2
0.1
RL = 1kΩ
100
90
80
70
60
0
RL = 150Ω
–0.1
–0.2
–0.3
–0.4
–55 –35 –15
5
25
45
65
85 105 125 135
0
5
10
15 20 25
Time (ns)
30
35
40
45 50
Temperature (°C)
COMMON-MODE REJECTION RATIO AND
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
POWER-SUPPLY REJECTION RATIO vs TEMPERATURE
20
18
16
14
12
10
8
100
90
80
70
60
50
Power-Supply Rejection Ratio
Common-Mode Rejection Ratio
6
4
2
0
–9 –8 –7 –6 –5 –4 –3 –2 –1 0
1
2
3
4
5
6
7
8
9
–55 –35 –15
5
25
45
65
85 105 125 135
Offset Voltage (mV)
Temperature (°C)
OPA355, 2355, 3355
9
SBOS195D
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = 5V, G = +2, RF = 604Ω, and RL = 150Ω connected to VS/2, unless otherwise noted.
CHANNEL-TO-CHANNEL CROSSTALK
0
–20
–40
OPA3355
(triple)
–60
–80
OPA2355
(dual)
–100
–120
100k
1M
10M
100M
Frequency (Hz)
parallel can be beneficial when driving a low-resistance load.
Providing adequate bypass capacitance is essential to achiev-
ing very low harmonic and intermodulation distortion.
APPLICATIONS INFORMATION
The OPA355 series is a CMOS, high-speed, voltage-feed-
back, operational amplifier designed for video and other
general-purpose applications. It is available as a single, dual,
or triple op amp.
OPERATING VOLTAGE
The OPA355 is specified over a power-supply range of +2.7V
to +5.5V (±1.35V to ±2.75V). However, the supply voltage
may range from +2.5V to +5.5V (±1.25V to ±2.75V). Supply
voltages higher than 7.5V (absolute maximum) can perma-
nently damage the amplifier.
The amplifier features a 200MHz gain bandwidth and
360V/µs slew rate, but it is unity-gain stable and can be
operated as a +1V/V voltage follower.
Its input common-mode voltage range includes ground, al-
lowing the OPA355 to be used in virtually any single-supply
application up to a supply voltage of +5.5V.
Parameters that vary significantly over supply voltage or
temperature are shown in the Typical Characteristics section
of this data sheet.
PCB LAYOUT
Good high-frequency PC board layout techniques should be
employed for the OPA355. Generous use of ground planes,
short direct signal traces, and a suitable bypass capacitor
located at the V+ pin will assure clean, stable operation.
Large areas of copper also provide a means of dissipating
heat that is generated within the amplifier in normal opera-
tion.
ENABLE FUNCTION
The OPA355 can be enabled by applying a TTL HIGH
voltage level to the Enable pin. Conversely, a TTL LOW
voltage level will disable the amplifier, reducing its supply
current from 8.3mA to only 3.4µA per amplifier. This pin
voltage is referenced to single-supply ground. When using a
split-supply, such as ±2.5V, the enable/disable voltage levels
will be referenced to V–. Independent Enable pins are
available for each channel, providing maximum design flex-
ibility. For portable battery-operated applications, this feature
can be used to greatly reduce the average current and
thereby extend battery life.
Sockets are definitely not recommended for use with any
high-speed amplifier.
A 10nF ceramic bypass capacitor is the minimum recom-
mended value; adding a 1µF or larger tantalum capacitor in
OPA355, 2355, 3355
10
SBOS195D
www.ti.com
The Enable input can be modeled as a CMOS input gate with
a 100kΩ pull-up resistor to V+. Left open, the Enable pin will
assume a logic HIGH, and the amplifier will be on.
driver. A properly back-terminated 75Ω cable does not ap-
pear as capacitance; it presents only a 150Ω resistive load to
the OPA355 output.
The Enable time is 100ns and the disable time is only 30ns.
This allows the OPA355 to be operated as a “gated” amplifier,
or to have its output multiplexed onto a common output bus.
When disabled, the output assumes a high-impedance state.
The OPA355 can be used as an amplifier for RGB graphic
signals, which have a voltage of zero at the video black
level, by offsetting and AC-coupling the signal, as shown in
Figure 1.
OUTPUT DRIVE
WIDEBAND VIDEO MULTIPLEXING
The output stage can supply high short-circuit current (typi-
cally over 200mA). Therefore, an on-chip thermal shutdown
circuit is provided to protect the OPA355 from dangerously
high junction temperatures. At 160°C, the protection circuit
will shut down the amplifier. Normal operation will resume
when the junction temperature cools to below 140°C.
One common application for video speed amplifiers which
include an enable pin is to wire multiple amplifier outputs
together, then select which one of several possible video
inputs to source onto a single line. This simple Wired-OR
Video Multiplexer can be easily implemented using the
OPA357; see Figure 2.
NOTE: it is not recommended to run a continuous DC current
in excess of ±60mA. Refer to the Typical Characteristics,
Output Voltage Swing vs Output Current.
INPUT AND ESD PROTECTION
All OPA355 pins are static protected with internal ESD
protection diodes tied to the supplies; see Figure 3.
VIDEO
These diodes will provide overdrive protection if the current
is externally limited to 10mA by the source or by a resistor.
The OPA355 output stage is capable of driving a standard
back-terminated 75Ω video cable. By back-terminating a
transmission line, it does not exhibit a capacitive load to its
604Ω
+3V
+
1µF
10nF
V+
604Ω
220µF
75Ω
1/3
OPA355
Red
75Ω
R1
R2
Red(1)
604Ω
V+
604Ω
220µF
75Ω
1/3
OPA355
Green
R1
R2
Green(1)
75Ω
604Ω
V+
604Ω
220µF
75Ω
1/3
OPA355
Blue
R1
R2
Blue(1)
75Ω
NOTE: (1) Source video signal offset 300mV above ground
to accommodate op amp swing-to-ground capability.
FIGURE 1. RGB Cable Driver.
OPA355, 2355, 3355
11
SBOS195D
www.ti.com
+2.5V
+
+
1µF
1µF
10nF
10nF
A
49.9Ω
Signal #1
OPA355
–2.5V
1kΩ
49.9Ω
VOUT
1kΩ
49.9Ω
+2.5V
+
+
1µF
1µF
10nF
10nF
B
49.9Ω
Signal #2
OPA355
–2.5V
1kΩ
1kΩ
HCO4
BON
Select
AON
FIGURE 2. Multiplexed Output.
+VCC
External
Pin
Internal
Circuitry
–VCC
FIGURE 3. Internal ESD Protection.
OPA355, 2355, 3355
12
SBOS195D
www.ti.com
PACKAGE OPTION ADDENDUM
www.ti.com
19-Nov-2012
PACKAGING INFORMATION
Orderable Device
OPA2355DGSA/250
OPA2355DGSA/250G4
OPA3355EA/250
OPA3355EA/250G4
OPA3355EA/2K5
OPA3355EA/2K5G4
OPA3355UA
Status Package Type Package Pins Package Qty
Eco Plan Lead/Ball Finish
MSL Peak Temp
Samples
Drawing
(1)
(2)
(3)
(Requires Login)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
VSSOP
VSSOP
TSSOP
TSSOP
TSSOP
TSSOP
SOIC
DGS
DGS
PW
PW
PW
PW
D
10
10
14
14
14
14
14
14
6
250
250
250
250
2500
2500
50
Green (RoHS CU NIPDAUAG Level-2-260C-1 YEAR
& no Sb/Br)
Green (RoHS CU NIPDAUAG Level-2-260C-1 YEAR
& no Sb/Br)
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
CU NIPDAU Level-2-260C-1 YEAR
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
OPA3355UAG4
SOIC
D
50
Green (RoHS
& no Sb/Br)
OPA355NA/250
SOT-23
SOT-23
SOT-23
SOT-23
SOIC
DBV
DBV
DBV
DBV
D
250
250
3000
3000
75
Green (RoHS
& no Sb/Br)
OPA355NA/250G4
OPA355NA/3K
6
Green (RoHS
& no Sb/Br)
6
Green (RoHS
& no Sb/Br)
OPA355NA/3KG4
OPA355UA
6
Green (RoHS
& no Sb/Br)
8
Green (RoHS
& no Sb/Br)
OPA355UA/2K5
SOIC
D
8
2500
2500
75
Green (RoHS
& no Sb/Br)
OPA355UA/2K5G4
OPA355UAG4
SOIC
D
8
Green (RoHS
& no Sb/Br)
SOIC
D
8
Green (RoHS
& no Sb/Br)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
19-Nov-2012
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
19-Nov-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
OPA2355DGSA/250
OPA3355EA/250
OPA3355EA/2K5
OPA355UA/2K5
VSSOP
TSSOP
TSSOP
SOIC
DGS
PW
PW
D
10
14
14
8
250
250
180.0
180.0
330.0
330.0
12.4
12.4
12.4
12.4
5.3
6.9
6.9
6.4
3.4
5.6
5.6
5.2
1.4
1.6
1.6
2.1
8.0
8.0
8.0
8.0
12.0
12.0
12.0
12.0
Q1
Q1
Q1
Q1
2500
2500
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
19-Nov-2012
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
OPA2355DGSA/250
OPA3355EA/250
OPA3355EA/2K5
OPA355UA/2K5
VSSOP
TSSOP
TSSOP
SOIC
DGS
PW
PW
D
10
14
14
8
250
250
210.0
210.0
367.0
367.0
185.0
185.0
367.0
367.0
35.0
35.0
35.0
35.0
2500
2500
Pack Materials-Page 2
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changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
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TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
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相关型号：
OPA3355EA/2K5G4
TRIPLE OP-AMP, 15000uV OFFSET-MAX, 200MHz BAND WIDTH, PDSO14, GREEN, PLASTIC, TSSOP-14
TI
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