OPA360 [TI]
采用 SC70 封装、具有低通滤波器、内部 G=2 和 SAG 校正功能的 3V 视频放大器;
| 型号： | OPA360 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 采用 SC70 封装、具有低通滤波器、内部 G=2 和 SAG 校正功能的 3V 视频放大器 放大器 视频放大器 |
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| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OPA360
SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
3V Video Amplifier
with 6dB Gain and Filter in SC70
FEATURES
DESCRIPTION
The OPA360 high-speed amplifier is optimized for 3V
D
D
D
D
EXCELLENT VIDEO PERFORMANCE
INTERNAL GAIN: 6dB
portable video applications. It has been specifically
designed to be compatible with digital-to-analog
converters (DACs) embedded in video processors, such
as Texas Instruments’ family of Digital Media Processors
and others. The input common-mode range includes
GND, which allows the Video-DAC to be DC-coupled to
the OPA360.
2-POLE RECONSTRUCTION FILTER
SAG CORRECTION
− Reduces Coupling Capacitor Size
D
D
INPUT RANGE INCLUDES GROUND
− DC-Coupled Input
The output swings within 25mV of GND and 300mV to V+
with a standard back-terminated video load (150Ω). An
internal level shift circuit prevents the output from
saturating with 0V input, thus preventing sync-pulse
clipping in common video circuits. Therefore, the OPA360
is ideally suited for DC-coupling to the video load. If
INTEGRATED LEVEL SHIFTER
(1)
− DC-Coupled Output
− No Output Capacitors Needed
D
D
D
D
RAIL-TO-RAIL OUTPUT
AC-coupling is preferred, the OPA360 offers
a
sag-correction feature that significantly reduces the size of
the output coupling capacitor.
LOW QUIESCENT CURRENT: 6mA
SHUTDOWN CURRENT: 5mA (max)
SINGLE-SUPPLY: 2.7V to 3.3V
The OPA360 has been optimized for space-sensitive
applications by integrating sag-correction, internal gain
setting resistors (G = 2), and a 2-pole video-DAC
reconstruction filter.
D
SC70-6 PACKAGE: 2.0mm x 2.1mm
Internal circuitry prevents the output from saturating, even with 0V sync
tip level at the input video signal.
(1)
In shutdown mode, the quiescent current is reduced to
< 5µA, dramatically reducing power consumption and
prolonging battery life.
APPLICATIONS
The OPA360 is available in the tiny 2mm x 2.1mm SC70-6
package.
D
D
D
DIGITAL CAMERAS
CAMERA PHONES
V+ = 2.7V
SET-TOP-BOX VIDEO FILTERS
ENABLE
to 3.3V
V+
RELATED LOW VOLTAGE VIDEO AMPS
OPA360
Level
FEATURES
PRODUCT
Shifter
VIN
Enable
2−Pole
Filter
2.7V to 5.5V, 200MHz GBW, 300V/µs, 6µA Sleep, SOT23
OPA355
OPA357
OPA358
OPA361
VO
2.7V to 5.5V, RRIO, 150V/µs, 5mA I , 6µA Sleep, SOT23
Q
2.7V to 3.3V, SC70, 80MHz, 7.5mA I , 5µA Sleep
Q
6dB
2.5V to 3.3V, SC70, Filter, G = 5.2V/V, 3µA Sleep
SAG
GND
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.
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ
Copyright 2003−2006, Texas Instruments Incorporated
www.ti.com
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
(1)
ORDERING INFORMATION
PRODUCT
PACKAGE
PACKAGE DESIGNATOR
PACKAGE MARKING
AUW
OPA360
SC70-6
DCK
(1)
For the most current package and ordering information see the Package Option Addendum at at the end of this document, or see the TI web
site at www.ti.com.
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handledwith appropriate precautions. Failure to observe
(1)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V− . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V
(2)
proper handling and installation procedures can cause damage.
Signal Input Terminals, Voltage
. . . . (V−) −0.5V to (V+) + 0.5V
(2)
Current
. . . . . . . . . . . . . . . . . . . 10mA
(3)
ESD damage can range from subtle performance degradation 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.
Output Short-Circuit through 75Ω to GND
. . . . . . . Continuous
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . −40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . −65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +160°C
(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)
(3)
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.
Short-circuit to ground.
PIN CONFIGURATION
OPA360
LPF
+
In
1
2
3
6
5
4
V+
GND
SAG
Enable
Out
SC70−6(1)
(1)
Pin 1 of the SC70-6 is determined by orienting
the package marking as indicated in the diagram.
2
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
ELECTRICAL CHARACTERISTICS: VS = +2.7V to +3.3V Single-Supply
Boldface limits apply over the temperature range, T = −40°C to +85°C.
A
All specifications at T = +25°C, R = 150Ω connected to GND, unless otherwise noted.
A
L
OPA360
TYP
PARAMETER
CONDITIONS
MIN
MAX
UNITS
OFFSET LEVEL-SHIFT VOLTAGE
(1)
Output Level-Shift Voltage
Over Temperature
vs. Power Supply
V
V
= +3.3V, V = GND, G = +2
30
60
60
80
80
mV
mV
OLS
S IN
Specified Temperature Range
= +2.7V to +3.3V
PSRR
V
µV/V
S
INPUT BIAS CURRENT
Input Bias Current
I
3
pA
V
B
INPUT VOLTAGE RANGE
(2)
Common-Mode Voltage Range
V
V
= 3.3V, G = +2
GND
5.8
(V+) − 1.5
6.2
CM
S
VOLTAGE GAIN
V
= +3.3V, 0 < V < 1.5V
IN
6
dB
S
FREQUENCY RESPONSE
Filter Response
Normalized Gain: f = 4.5MHz
IN
V
V
= 2V
= 2V
−0.6
−18
−0.1
−21
0.5
1
+0.4
dB
dB
%
O
PP
f
= 27MHz
IN
O
PP
Differential Gain Error
Differential Phase Error
Group Delay Variation
Signal-to-Noise Ratio
R
R
= 150Ω
= 150Ω
L
°
ns
dB
L
100kHz, 5MHz
13
SNR
100% White Signal
70
OUTPUT
Positive Voltage Output Swing from Rail
Negative Voltage Output Swing from Rail
Positive Voltage Output Swing from Rail
Negative Voltage Output Swing from Rail
V
V
= +3.3V, G = 2, V = 2V, R = 150Ω to GND
IN
160
3
300
25
mV
mV
mV
mV
mA
S
S
L
= +3.3V, G = 2, V = 0V, R = 150Ω to GND
IN
L
V
= +3.3V, G = 2, V = 2V, R = 75Ω to GND
300
10
80
S
S
IN
L
V
= +3.3V, G = 2, V = 0V, R = 75Ω to GND
IN
L
(3)
Output Current
I
V = +3.3V
S
O
POWER SUPPLY
Specified Voltage Range
Minimum Operating Voltage Range
Quiescent Current
V
2.7
1.6
3.3
V
V
S
2.5 to 3.6
6
I
V
= +3.3V, Enabled, I = 0
7.5
mA
mA
Q
S
O
Specified Temperature Range
9
ENABLE/SHUTDOWN FUNCTION
Disabled (logic-LOW Threshold)
Enabled (logic-HIGH Threshold)
Enable Time
0.8
V
V
1.5
50
µs
ns
µA
Disable Time
Shutdown Current
V
= +3.3, Disabled
2.5
5
S
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
−40
−40
−65
+85
+85
°C
°C
°C
+150
Thermal Resistance
SC70
q
JA
250
°C/W
(1)
(2)
(3)
Output referred. Tested with SAG pin connected to OUT pin.
Limited by output swing and internal G = 2. Tested with the SAG pin connected to OUT pin.
See typical characteristics Output Voltage Swing vs Output Current.
3
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
TYPICAL CHARACTERISTICS: V = 3.3V
S
At T = +25°C and R = 150Ω, unless otherwise noted.
A
L
Normalized Gain at 4.5MHz
Production Distribution
FREQUENCY RESPONSE
5
0
5
Normalized:
”0” dB corresponds
to 6dB gain.
−
−
−
−
−
−
−
−
10
15
20
25
30
35
40
10k
100k
1M
10M
100M
Frequency (Hz)
Normalized Gain at 4.5MHz (dB)
GROUP DELAY vs FREQUENCY
GAIN ERROR
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
45
40
35
30
25
20
15
10
5
0
10k
100k
Frequency (Hz)
1M
10M
−
−
25
50
0
25
50
75
100
125
_
Temperature ( C)
OUTPUT VOLTAGE SWING TO THE POSITIVE RAIL
vs OUTPUT CURRENT
OUTPUT VOLTAGE SWING TO THE NEGATIVE RAIL
vs OUTPUT CURRENT
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
0.30
0.25
0.20
0.15
0.10
0.05
0
VS = 3.3V
VS = 3.3V, VIN = 0V
−
_
40 C
_
+85 C
_
+25 C
_
+25 C
−
_
40 C
_
+85 C
0
0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
Output Current (A)
0
0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
Output Current (A)
4
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
TYPICAL CHARACTERISTICS: V = 3.3V (continued)
S
At T = +25°C and R = 150Ω, unless otherwise noted.
A
L
QUIESCENT CURRENT vs SUPPLY VOLTAGE
QUIESCENT CURRENT vs TEMPERATURE
VS = 3.3V
7
6
5
4
3
2
1
0
8.0
7.5
7.0
6.5
6.0
5.5
5.0
2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3
Supply Voltage (V)
−
−
25
50
0
25
50
75
100
125
_
Temperature ( C)
SHUTDOWN CURRENT vs TEMPERATURE
DIFFERENTIAL GAIN
3.0
2.5
2.0
1.5
1.0
0.5
0
VS = 3.3V
DIFFERENTIAL PHASE
−
−
25
50
0
25
50
75
100
125
_
Temperature ( C)
SHUTDOWN TRIGGER LEVELS
LARGE−SIGNAL DISABLE/ENABLE RESPONSE
Enable
6
4
2
0
OPA360
Shutdown
OPA360
Active
OPA360
Output
Disable
1.4
1.45
1.5
Enable Pin Voltage (V)
1.55
1.6
µ
Time (1 s/div)
5
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
INPUT OVERVOLTAGE PROTECTION
APPLICATIONS INFORMATION
The OPA360 video amplifier has been optimized for
portable video applications:
All OPA360 pins are static-protected with internal ESD
protection diodes connected to the supplies. These diodes
will provide input overdrive protection if the current is
externally limited to 10mA
D
Internal gain setting resistors (G = 2) reduce the
number of external components needed in the
video circuit.
ENABLE/SHUTDOWN
The OPA360 has a shutdown feature that disables the
output and reduces the quiescent current to less than 5µA.
This feature is especially useful for portable video
applications such as digital still cameras and camera
phones, where the equipment is infrequently connected to
a TV or other video device.
D
D
A 2-pole filter is incorporated for DAC signal
reconstruction.
The sag correction function reduces the size of the
output coupling capacitors without compromising
performance.
The Enable logic input voltage is referenced to the
OPA360 GND pin. A logic level HIGH applied to the enable
pin enables the op amp. A valid logic HIGH is defined as
≥ 1.6V above GND. A valid logic LOW is defined as ≤ 0.8V
above GND. If the Enable pin is not connected, internal
pull-up circuitry will enable the amplifier. Enable pin
voltage levels are tested for a valid logic HIGH threshold
of 1.6V minimum and a valid logic LOW threshold of 0.8V
maximum.
D
D
OPA360 employs an internal level shift circuit that
avoids sync pulse clipping and allows DC-coupled
output.
A shutdown feature reduces quiescent current to
less than 5µA—crucial for portable applications
such as digital still cameras (DSCs) and camera
phones.
The OPA360 interfaces to digital media processors
(DM320/270, DSC25). It has been optimized for the
requirements of digital still cameras and cell
phone/camera designs.
INTERNAL 2-POLE FILTER
The OPA360 filter is a Sallen-Key topology with a 9MHz
cutoff frequency. This allows the video signals to pass
without any visible distortion, as shown in Figure 3 through
Figure 5. The video DACs embedded in TI’s Digital Media
Processors over-sample at 27MHz. At this frequency, the
attenuation is typically 21dB, which effectively attenuates
the sampling aliases.
OPERATING VOLTAGE
The OPA360 is fully specified from 2.7V to 3.3V over a
temperature range of −40°C to +85°C. Parameters that
vary significantly with operating voltages or temperature
are shown in the Typical Characteristics.
The filter characteristics vary somewhat with signal source
impedance. A source impedance greater than 500Ω can
degrade filter performance. With current-output video
DACs, a resistor to GND is often used to create a voltage
output which is then applied to the OPA360 input (see
Figure 1). TI’s Digital Media Processors, such as the
DM270 or DM320, typically use a 200Ω resistor to GND to
convert the current output signal. This 200Ω source
impedance does not degrade video performance.
Power-supply pins should be bypassed with 100nF
ceramic capacitors.
INPUT VOLTAGE
The input common-mode range of the OPA360 series
extends from GND to (V+) − 1.5V. Because of the internal
gain, the input voltage range necessary for an output in the
valid range will be limited.
10pF
Television
Ω
Ω
1.4k
1.1k
(
)
Ω
75
VO
(1)
12pF
R
Ω
845
Ω
75
Ω
Ω
528
325
SAG
NOTE: (1) Optional.
Ω
650
OPA360
Figure 1. Filter Structure of OPA360
6
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A capacitor placed in parallel with the resistor (Figure 1)
creates an additional filter pole that provides additional
stop-band attenuation. With a 200Ω source impedance, a
67pF ceramic capacitor provides approximately 28dB
attenuation at 27MHz without affecting the pass band.
of amplitude and group delay errors across the video
baseband.
D
D
Chrominance-to-luminence (CCIR17) — tests ampli-
tude, phase and some distortion
50Hz, 1/2 black−1/2 white screen test signal—tests
the worst case signal swing required by the amplifier.
Performance on these test signals are shown.
VIDEO PERFORMANCE
Industry standard video test patterns include:
D
D
Multiburst—packets of different test frequencies to
check for basic frequency response.
Figure 2 shows the test circuits for Figure 3 through
Figure 13 and Figure 16. (NOTE: 1 and 2 indicate
measurement points corresponding to the waveforms
labeled 1 and 2 in the figures.)
Multipulse—pulses
modulated
at
different
frequencies to test for comprehensive measurement
2
1
2
1
µ
47 F
µ
22 F
SAG
a. Test circuit for Figures 3−5.
b. Test circuit for Figures 6, 8, and 16.
2
1
1
2
1
COUT
µ
220 F
µ
22 F
µ
22 F
c. Test circuits for Figures 10 and 11.
d. Test circuit for Figures 7, 12, and 13.
NOTE: 1 and 2 indicate measurement points corresponding to the waveforms labeled 1 and 2 in the figures.
Figure 2. Test Circuits Used for Figures 3−13
7
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
Chrominance-to-luminence gain inequality (or relative
chrominance level) is a change in the gain ratio of the
chrominance and luminence components of a video
signal, which are at different frequencies. A common test
pattern is the pulse in test pattern CCIR 17, shown in
Figure 5. As in Figure 3 and Figure 4, the top waveform
shows the full test pattern; the middle and bottom
waveform are a more detailed view of the critical portion of
the full waveform, with the middle waveform representing
the input signal from the video generator and the bottom
waveform being the OPA360 output to the line.
FREQUENCY RESPONSE OF THE OPA360
Frequency response measurements evaluate the ability of
a video system to uniformly transfer signal components of
different frequencies without affecting their respective
amplitudes. Figure 3 shows the multiburst test pattern;
Figure 4 shows the multipulse. The top waveforms in
these figures show the full test pattern. The middle and
bottom waveform are a more detailed view of the critical
portion of the full waveform. The middle waveform
represents the input signal from the video generator; the
bottom waveform is the OPA360 output to the line.
Figure 5. CCIR 17 Test Pattern (PAL)
Figure 3. Multiburst (CCIR 18) Test Pattern (PAL)
Gain errors most commonly appear as attenuation or
peaking of the chrominance information. This shows up in
the picture as incorrect color saturation. Delay distortion
will cause color smearing or bleeding, particularly at the
edges of objects in the picture. It may also cause poor
reproduction of sharp luminence transitions.
All waveforms in Figure 3 through Figure 5 were taken
using the sag correction feature of OPA360. Figure 3
through Figure 5 show that the OPA360 causes no visible
distortion or change in gain throughout the entire video
frequency range.
INTERNAL LEVEL SHIFT
Many common video DACs embedded in digital media
processors like TI’s TMS320DM270 and the new
OMAP2420 processors operate on a single supply (no
negative supply). Typically, the lowest point of the sync
pulse output by these Video DACs corresponds to 0V. With
a 0V input, the output of common single-supply op amps
saturates at a voltage > 0V. This effect would clip the tip of
the sync pulse and therefore degrade the video signal
integrity. The OPA360 employs an internal level shift circuit
to avoid clipping. The input signal is typically shifted by
Figure 4. Multipulse Test Pattern (PAL)
8
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
approximately 60mV. This is well within the linear output
voltage range of the OPA360 with a standard 150Ω video
load. Figure 6 shows the function of the level shifter.
Figure 7. Output Swing with 33mF on 3V Supply
OUTPUT SWING TO GND (SYNC PULSE)
Figure 8 shows the true output swing capability of the
OPA360 by taking the tip of the input sync pulse to a
slightly negative voltage. Even when the output sync tip is
at 8mV, the output shows no clipping of the sync pulse.
Figure 6. Internal Level Shifter, Shifts Input
Signal by Approximately 60mV to Prevent Sync
Tip Clipping
The level shift function is particularly useful when the
output of the OPA360 is DC-coupled to the video load.
However, it is also helpful when sag correction is
employed. The offset helps to shift the video signal closer
to the positive rail, so that with even a small 33µF coupling
capacitor, the output is well outside the saturation limits of
the OPA360. Figure 7 shows the output swing of the
OPA360, operated on 3.0V supplies, with a 22µF sag
correction capacitor and a 33µF output coupling capacitor.
The test signal is a 50Hz signal constructed to generate a
1/2 black, 1/2 white screen. This video pattern is one of the
most difficult patterns to display because it is the worst
case signal regarding signal swing. A worst case signal
such as this is highly unlikely in normal operation. Any
other signal has a lower swing range. Note in Figure 7 that
neither the white nor the black portion of the video signal
is clipped.
Figure 8. Input Sync Tip at −30mV (Output Shows
No Sign of Clipping)
9
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SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
SAG CORRECTION
Sag correction provides excellent video performance with
two small output coupling capacitors. It eliminates the
traditional, large 220µF output capacitor. The traditional
220µF circuit (Figure 9a) creates a single low frequency
pole (−3dB frequency) at 5Hz. If this capacitor is made
much smaller, excessive phase shift in the critical 50 to
100Hz range produces field tilt which can interfere with
proper recovery of synchronization signals in the television
receiver.
The OPA360 sag correction circuit (Figure 9b, see also
Figure 14) creates an amplitude response peak in the
20Hz region. This small amount of peaking (a few tenths
of a dB) provides compensation of the phase response in
the critical 50Hz to 100Hz range, greatly reducing field tilt.
Note that two significantly smaller and lower cost
capacitors are required.
µ
220 F
Ω
75
Figure 10. Standard Video Circuit with 220mF
Capacitor (top trace) vs OPA360 with 22mF and
47mF Capacitors
Ω
75
A field tilt equivalent to that achieved using the standard
220µF coupling capacitor can be achieved with a
22µF/67µF combination − see Figure 11. These capacitor
values are optimized—sag correction capacitors larger
than 22µF do not provide significant improvement. Smaller
sag correction capacitors will lead to higher tilt.
a) Traditional Video Circuit
µ
47 F
Ω
75
µ
22 F
Ω
75
b) OPA360 with Sag Correction
Figure 9. Traditional Video Circuit vs OPA360
with Sag Correction
To achieve good performance, a 22µF sag correction and
47µF coupling capacitor can be used. Figure 10 and
Figure 11 show comparisons for a standard video circuit
with a 220µF coupling capacitor and the OPA360 with sag
correction.
Figure 10 shows that the 22µF/47µF combination leads to
only a slightly greater tilt in the 50Hz, 1/2 black − 1/2 white
video signal. No degradation in video quality is observed.
Figure 11. 220mF Standard Video Circuit (top
trace) vs OPA360 with 22mF and 67mF Capacitors
10
ꢂ ꢀꢉ ꢠꢡꢢ
www.ti.com
SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
As seen in Figure 7, the output swing with a 33µF coupling
capacitor is already very close to the saturation limit on a
3V supply. Over time and temperature, a capacitor might
change its value slightly, which in turn could force the
output into saturation. Using the 50Hz, 1/2 blackĊ 1/2
white screen test signal as a worst-case analysis,
Figure 12 and Figure 13 demonstrate that a 3V supply
could be used with a coupling capacitor as low as 47µF.
SUPPLY VOLTAGE vs COUPLING CAPACITOR
The output voltage swing is a function of the coupling
capacitor value. The value of the sag correction capacitor
has only a minor influence. The smaller the coupling
capacitor, the greater the output swing. Therefore, to
accommodate the large signal swing with very small
coupling capacitors (22µF and 33µF), a higher supply
voltage might be needed.
Figure 12. Output Swing with 47mF on 3V Supply
Figure 13. Output Swing with 67mF on 3V Supply
V+ = 2.7V to 3.3V ENABLE
V+
OPA360
Level
Shifter
COUT
ROUT
Ω
75
2−Pole
Filter
Video
DAC
Enable
µ
47 F
OUT
SAG
+
(1)
CSAG
Ω
75
µ
22 F
+
AC Gain = 2
DC Gain = 2.8
Television
or VCR
GND
Ω
NOTE: (1) Optional 200 for use with TI’s Digital Media Processors.
Figure 14. DC-Coupled Input/AC-Coupled Output
11
ꢂꢀꢉꢠ ꢡꢢ
www.ti.com
SB0S294E − DECEMBER 2003 − REVISED SEPTEMBER 2006
The DC-coupled output configuration also shows the best
video performance. As seen in Figure 16, there is no line
or field tilt—allowing use of the lowest power supply. In this
mode, the OPA360 will safely operate down to 2.5V with
no clipping of the signal.
DC-COUPLED OUTPUT
Due to the internal level shift, the OPA360 can also be DC-
coupled to a video load. As shown in Figure 15, this
eliminates the need for AC-coupling capacitors at the
output. This is especially important in portable video
applications where board space is restricted.
The disadvantage with DC-coupled output is that it uses
somewhat higher supply current.
V+ = 2.7V to 3.3V ENABLE
V+
OPA360
Level
Shifter
ROUT
2−Pole
Filter
Video
DAC
Enable
Ω
75
OUT
SAG
(1)
Ω
75
6dB
Television
or VCR
GND
Ω
NOTE: (1) Optional 200 for use with TI’s Digital Media Processors.
Figure 15. DC-Coupled Input/DC-Coupled Output
Figure 16. DC-Coupled Output
12
PACKAGE OPTION ADDENDUM
www.ti.com
12-Sep-2006
PACKAGING INFORMATION
Orderable Device
OPA360AIDCKR
OPA360AIDCKRE4
OPA360AIDCKT
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SC70
DCK
6
6
6
6
3000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
SC70
SC70
SC70
DCK
DCK
DCK
3000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
OPA360AIDCKTG4
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
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 1
PACKAGE MATERIALS INFORMATION
www.ti.com
23-Jan-2009
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0 (mm)
B0 (mm)
K0 (mm)
P1
W
Pin1
Diameter Width
(mm) W1 (mm)
(mm) (mm) Quadrant
OPA360AIDCKR
OPA360AIDCKT
SC70
SC70
DCK
DCK
6
6
3000
250
179.0
179.0
8.4
8.4
2.2
2.5
2.4
1.2
4.0
4.0
8.0
8.0
Q3
Q3
2.25
1.22
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
23-Jan-2009
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
OPA360AIDCKR
OPA360AIDCKT
SC70
SC70
DCK
DCK
6
6
3000
250
195.0
195.0
200.0
200.0
45.0
45.0
Pack Materials-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
13-Jul-2022
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
OPA360AIDCKR
OPA360AIDCKT
ACTIVE
ACTIVE
SC70
SC70
DCK
DCK
6
6
3000 RoHS & Green
250 RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
AUW
AUW
Samples
Samples
NIPDAU
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
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 1
PACKAGE OPTION ADDENDUM
www.ti.com
13-Jul-2022
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jan-2021
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)
OPA360AIDCKR
OPA360AIDCKR
OPA360AIDCKT
OPA360AIDCKT
SC70
SC70
SC70
SC70
DCK
DCK
DCK
DCK
6
6
6
6
3000
3000
250
178.0
179.0
179.0
178.0
9.0
8.4
8.4
9.0
2.4
2.2
2.5
2.5
2.4
2.5
1.2
1.2
4.0
4.0
4.0
4.0
8.0
8.0
8.0
8.0
Q3
Q3
Q3
Q3
2.25
2.4
1.22
1.2
250
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-Jan-2021
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
OPA360AIDCKR
OPA360AIDCKR
OPA360AIDCKT
OPA360AIDCKT
SC70
SC70
SC70
SC70
DCK
DCK
DCK
DCK
6
6
6
6
3000
3000
250
180.0
213.0
213.0
180.0
180.0
191.0
191.0
180.0
18.0
35.0
35.0
18.0
250
Pack Materials-Page 2
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