Data Sheet
FEATURES
SD Video Filter Amplifiers
with Output Short-to-Battery Protection
ADA4432-1/ADA4433-1
FUNCTIONAL BLOCK DIAGRAMS
ENA
+V
S
STB
(LFCSP ONLY)
Qualified for automotive applications
Output overvoltage (short-to-battery) protection up to 18 V
Short-to-battery output flag for wire diagnostics
Output short-to-ground protection
Fifth-order, low-pass video filter
0.1 dB flatness to 3 MHz
−3 dB bandwidth of 10 MHz
45 dB rejection at 27 MHz
Ultralow power-down current: 13.5 µA typical
Low quiescent current
7.6 mA typical (ADA4432-1)
13.2 mA typical (ADA4433-1)
Low supply voltage: 2.6 V to 3.6 V
Small packaging
8-lead, 3 mm × 3 mm LFCSP
6-lead SOT-23 (ADA4432-1 only)
Wide operating temperature range: −40°C to +125°C
ADA4432-1
IN
×1
SD
OFFSET
×2
STB
OUT
GND
Figure 1.
ENA
+V
S
STB
ADA4433-1
2R
+IN
×1
SD
R
+
STB
–OUT
APPLICATIONS
Automotive rearview cameras
Automotive video electronic control units (ECUs)
Surveillance video systems
–IN
×1
SD
R
–
STB
2R
+OUT
GND
GENERAL DESCRIPTION
The
ADA4432-1
(single-ended output) and
ADA4433-1
(differential output) are fully integrated video reconstruction
filters that combine overvoltage protection (short-to-battery [STB]
protection) and short-to-ground (STG) protection on the outputs,
with excellent video specifications and low power consumption.
The combination of STB protection and robust ESD tolerance
allows the
ADA4432-1
and the
ADA4433-1
to provide superior
protection in the hostile automotive environment.
The
ADA4432-1
is a single-ended input/single-ended output
video filter capable of driving long back-terminated cables.
The
ADA4433-1
is a fully differential video filter that can be
used as a fully differential input to a differential output or as a
single-ended input to a differential output, allowing it to easily
connect to both differential and single-ended sources. It is
capable of driving twisted pair or coaxial cable with minimal
line attenuation. Differential signal processing reduces the effects
of ground noise, which can plague ground referenced systems.
The
ADA4433-1
is ideal for differential signal processing (gain
and filtering) throughout the signal chain, simplifying the
conversion between single-ended and differential components.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Figure 2.
The short-to-battery protection integrated into the
ADA4432-1
and
ADA4433-1
protects against both dc and transient
overvoltage events, caused by an accidental short to a battery
voltage up to 18 V. The Analog Devices, Inc., short-to-battery
protection eliminates the need for large output coupling capacitors
and other complicated circuits used to protect standard video
amplifiers, saving space and cost.
The
ADA4432-1
and
ADA4433-1
feature a high-order filter with
−3 dB cutoff frequency response at 10 MHz and 45 dB of rejection
at 27 MHz. The
ADA4432-1
and
ADA4433-1
feature an internally
fixed gain of 2 V/V. This makes the
ADA4432-1
and
ADA4433-1
ideal for SD video applications, including NTSC and PAL.
The
ADA4432-1
and
ADA4433-1
operate on single supplies as
low as 2.6 V and as high as 3.6 V while providing the dynamic
range required by the most demanding video systems.
The
ADA4432-1
and
ADA4433-1
are offered in an 8-lead, 3 mm ×
3 mm LFCSP package. The
ADA4432-1
is also available in a
6-lead SOT-23 package. All are rated for operation over the
wide automotive temperature range of −40°C to +125°C.
Rev. E
Document Feedback
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
10597-002
10597-001
ADA4432-1/ADA4433-1
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams ............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
ADA4432-1 Specifications .......................................................... 3
ADA4433-1 Specifications .......................................................... 4
Absolute Maximum Ratings............................................................ 6
Thermal Resistance ...................................................................... 6
Maximum Power Dissipation ..................................................... 6
ESD Caution .................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 9
ADA4432-1 Typical Performance Characteristics ................... 9
ADA4433-1 Typical Performance Characteristics ................. 12
Theory of Operation ...................................................................... 15
Short Circuit (Short-to-Ground) Protection .............................. 15
Data Sheet
Overvoltage (Short-to-Battery) Protection ................................ 15
Short-to-Battery Output Flag ................................................... 15
ESD Protection ........................................................................... 16
Enable/Disable Modes (ENA Pin) ........................................... 16
Operating Supply Voltage Range.............................................. 16
Applications Information .............................................................. 17
Methods of Transmission .......................................................... 17
Printed Circuit Board (PCB) Layout ....................................... 17
Configuring the ADA4433-1 for Single-Ended Input Signals
....................................................................................................... 18
Pin-Compatible ADA4432-1 and ADA4433-1 ...................... 19
Typical Application Circuits ..................................................... 20
Fully DC-Coupled Transmission Line .................................... 22
Low Power Considerations ....................................................... 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 25
Automotive Products ................................................................. 25
REVISION HISTORY
5/2017—Rev. D to Rev. E
Changed CP-8-11 to CP-8-21 ...................................... Throughout
Deleted Figure 59; Renumbered Sequentially ............................ 24
Changes to Figure 58 Caption ...................................................... 24
8/2015—Rev. C to Rev. D
Updated Outline Dimensions ....................................................... 24
Added Figure 59; Renumbered Sequentially .............................. 24
Changes to Ordering Guide .......................................................... 25
8/2014—Rev. B to Rev. C
Changes to Ordering Guide .......................................................... 25
4/2014—Rev. A to Rev. B
Change to Theory of Operation Section ..................................... 15
Updated Outline Dimensions ....................................................... 24
Changes to Ordering Guide .......................................................... 25
5/2012—Rev. 0 to Rev. A
Added ADA4432-1 and 6-Lead SOT-23 ......................... Universal
Added Figure 1; Renumbered Sequentially .................................. 1
Added Table 1; Renumbered Sequentially .................................... 3
Changes to Table 2.............................................................................4
Added Figure 4, Figure 5, Table 5, and Table 6 .............................7
Added Figure 7 to Figure 24 ............................................................9
Changes to Operating Supply Voltage Range Section ............... 16
Added Methods of Transmission Section, Pseudo Differential
Mode (Unbalanced Source Termination) Section, Figure 43,
Pseudo Differential Mode (Balanced Source Impedance)
Section and Figure 44 .................................................................... 17
Changed Fully Differential Transmission Mode Section to Fully
Differential Mode Section ............................................................. 17
Added Pin-Compatible ADA4432-1 and ADA4433-1 Section,
Example Configuration for Package-Compatible PCB Section,
and Figure 48 to Figure 51 ............................................................ 19
Added Figure 52 ............................................................................. 20
Added Figure 54 ............................................................................. 22
Added Low Power Consideration, Figure 56, and Figure 57 ... 23
Updated Outline Dimensions ....................................................... 24
Changes to Ordering Guide .......................................................... 25
4/2012—Revision 0: Initial Version
Rev. E | Page 2 of 25
Data Sheet
SPECIFICATIONS
ADA4432-1
SPECIFICATIONS
T
A
= 25°C, +V
S
= 3.3 V, R
L
= 150 Ω, unless otherwise specified.
Table 1.
Parameter
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
−3 dB Large Signal Bandwidth
1 dB Flatness
0.1 dB Flatness
Out-of-Band Rejection
Differential Gain
Differential Phase
Group Delay Variation
Pass Band Gain
NOISE/HARMONIC PERFORMANCE
Signal-to-Noise Ratio
INPUT CHARACTERISTICS
Input Voltage Range
Input Resistance
Input Capacitance
Input Bias Current
OUTPUT CHARACTERISTICS
Output Offset Voltage
Output Voltage Swing
Linear Output Current
Short-Circuit Output Current
SHORT-TO-BATTERY
Overvoltage Protection Range
STB Output Trigger Threshold
Disconnect Time
Reconnect Time
POWER SUPPLY
Power Supply Range
1
Quiescent Current
Quiescent Current, Disabled
Quiescent Current, Short-to-Battery
Quiescent Current, Short to Ground
PSRR
ENABLE PIN
Input Leakage Current
ADA4432-1W
only: T
MIN
to T
MAX
Back termination = 75 Ω
ADA4432-1W
only: T
MIN
to T
MAX
After the fault is applied
After the fault is removed
Test Conditions/Comments
V
OUT
= 0.2 V p-p
V
OUT
= 2 V p-p
ADA4432-1W
only: T
MIN
to T
MAX
V
OUT
= 2 V p-p
ADA4432-1W
only: T
MIN
to T
MAX
V
OUT
= 2 V p-p
f = 27 MHz, V
OUT
= 2 V p-p
ADA4432-1W
only: T
MIN
to T
MAX
Modulated 10-step ramp, sync tip at 0 V
Modulated 10-step ramp, sync tip at 0 V
f = 100 kHz to 5 MHz
ADA4432-1W
only: T
MIN
to T
MAX
100% white signal, f = 100 kHz to 5 MHz
Limited by the output voltage range
ADA4432-1W
only: T
MIN
to T
MAX
0 to 1.34
0 to 1.3
Min
ADA4432-1/ADA4433-1
Typ
10.5
10.5
9.4
3.3
43
0.38
0.69
8
6
Max
Unit
MHz
MHz
MHz
MHz
MHz
MHz
dB
dB
%
Degrees
ns
dB
dB
dB
9.3
8.6
8.3
7.6
37
35
5.80
5.57
6.24
6.44
70
0 to 1.4
>1.0
8
35
0 to 1.45
0 to 1.47
V
V
GΩ
pF
pA
mV
mV
V
V
mA
mA
V
V
V
V
ns
ns
V
mA
mA
µA
µA
mA
mA
dB
µA
V
IN
= 0 V
ADA4432-1W
only: T
MIN
to T
MAX
R
L
= 150 Ω
ADA4432-1W
only: T
MIN
to T
MAX
192
0.28
0.30
±37
±50
+V
S
+V
S
6.3
6.0
280
300
+V
S
− 0.42
+V
S
− 0.45
7.2
150
300
18
18
8.1
8.4
2.6
No input signal, no load
ADA4432-1W
only: T
MIN
to T
MAX
ENA = 0 V
ADA4432-1W
only: T
MIN
to T
MAX
Short-to-battery fault condition: 18 V
Short on far end of output termination (75 Ω)
Δ+V
S RIPPLE
= ±0.3 V, f = dc
ENA = high/low
Rev. E | Page 3 of 25
7.6
14
4.6
47
−63
+0.3/−14
3.6
10
13
20
25
ADA4432-1/ADA4433-1
Parameter
LOGIC OUTPUT/INPUT LEVELS
STB V
OH
STB V
OL
ENA V
IH
ENA V
IL
OPERATING TEMPERATURE RANGE
1
Data Sheet
Test Conditions/Comments
V
OUT
≥ 7.2 V (fault condition)
V
OUT
≤ 3.1 V (normal operation)
Input voltage to enable device
Input voltage to disable device
−40
Min
Typ
3.3
0.02
≥2.4
≤0.6
+125
Max
Unit
V
mV
V
V
°C
Recommended range for optimal performance. Exceeding this range is not recommended.
ADA4433-1
SPECIFICATIONS
T
A
= 25°C, +V
S
= 3.3 V, V
−IN
= 0.5 V, R
L
= 150 Ω, unless otherwise specified.
Table 2.
Parameter
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
−3 dB Large Signal Bandwidth
1 dB Flatness
0.1 dB Flatness
Out-of-Band Rejection
Differential Gain
Differential Phase
Group Delay Variation
Pass Band Gain
NOISE/HARMONIC PERFORMANCE
Signal-to-Noise Ratio
INPUT CHARACTERISTICS
Input Common-Mode Voltage Range
Input Resistance
Input Capacitance
Input Bias Current
CMRR
OUTPUT CHARACTERISTICS
Output Offset Voltage
Output Voltage Swing
Linear Output Current
Short-Circuit Output Current
Output Balance Error
SHORT-TO-BATTERY
Protection Range
STB Output Trigger Threshold
Disconnect Time
Reconnect Time
Test Conditions/Comments
V
OUT
= 0.2 V p-p
V
OUT
= 2 V p-p
ADA4433-1W
only: T
MIN
to T
MAX
V
OUT
= 2 V p-p
ADA4433-1W
only: T
MIN
to T
MAX
V
OUT
= 2 V p-p
f = 27 MHz
ADA4433-1W
only: T
MIN
to T
MAX
Modulated 10-step ramp, sync tip at 0 V
Modulated 10-step ramp, sync tip at 0 V
f = 100 kHz to 5 MHz
ADA4433-1W
only: T
MIN
to T
MAX
100% white signal, f = 100 kHz to 5 MHz
0 to 2.1
0 to 2.0
Min
Typ
9.9
9.9
8.7
3
45
0.5
1.7
8
6
Max
Unit
MHz
MHz
MHz
MHz
MHz
MHz
dB
dB
%
Degrees
ns
dB
dB
dB
0 to 2.3
0 to 2.5
V
V
kΩ
kΩ
pF
pA
dB
V
V
V
V
mA
mA
dB
V
V
V
V
ns
ns
8.8
8.2
7.7
7.2
41
39
5.89
5.71
6.15
6.28
67
0 to 2.2
800
400
1.8
30
−55
1.65
0.54
0.6
±29
±60
−50
+V
S
+V
S
5.0
4.9
18
18
5.7
6.0
1.9
1.9
+V
S
− 0.55
+V
S
– 0.6
ADA4433-1W
only: T
MIN
to T
MAX
Differential
Common mode
Common mode
V
−IN
= V
+IN
= 0.1 V to 1.1 V
V
+IN
= V
−IN
= 0 V
ADA4433-1W
only: T
MIN
to T
MAX
Each single-ended output, R
L, dm
= 150 Ω
ADA4433-1W
only: T
MIN
to T
MAX
DC to f = 100 kHz, V
IN
= 0.5 V p-p
ADA4433-1W
only: T
MIN
to T
MAX
Each output back termination = 37.5 Ω
ADA4433-1W
only: T
MIN
to T
MAX
After the fault is applied
After the fault is removed
Rev. E | Page 4 of 25
5.4
150
300
Data Sheet
Parameter
POWER SUPPLY
Power Supply Range
1
Quiescent Current
Quiescent Current, Disabled
Quiescent Current, Short-to-Battery
Quiescent Current, Short-to-Ground
PSRR
ENABLE PIN
Input Leakage Current
LOGIC OUTPUT/INPUT LEVELS
STB V
OH
STB V
OL
ENA V
IH
ENA V
IL
OPERATING TEMPERATURE RANGE
1
ADA4432-1/ADA4433-1
Test Conditions/Comments
Min
2.6
No input signal, no load
ADA4433-1W
only: T
MIN
to T
MAX
ENA = 0 V
ADA4433-1W
only: T
MIN
to T
MAX
Short-to-battery fault condition: 18 V
Short on far end of output termination (37.5 Ω)
Δ+V
S RIPPLE
= ±0.3 V, f = dc
ENA = high/low
V
OUT
≥ 5.7 V (fault condition)
V
OUT
≤ 3 V (normal operation)
Input voltage to enable device
Input voltage to disable device
−40
13.2
13.5
18
60
−80
+0.3/−14
3.3
0.02
≥2.4
≤0.6
+125
Typ
Max
3.6
18
19
22
30
Unit
V
mA
mA
µA
µA
mA
mA
dB
µA
V
V
V
V
°C
Recommended range for optimal performance. Exceeding this range is not recommended.
Rev. E | Page 5 of 25
京公网安备 11010802033920号
EEWORLD
