Low Cost, High Speed, Rail-to-Rail,
V
FEATURES
Qualified for automotive applications
High speed
130 MHz, −3 dB bandwidth
375 V/μs slew rate
55 ns settling time to 0.1%
Excellent video specifications
0.1 dB flatness: 11 MHz
Differential gain: 0.08%
Differential phase: 0.09°
Fully specified at +3 V, +5 V, and ±5 V supplies
Rail-to-rail output
Output swings to within 60 mV of either rail
Low voltage offset: 0.6 mV
Wide supply range: 2.7 V to 12 V
Low power: 2.5 mA per amplifier
Power-down mode
Available in space-saving packages
6-lead SOT-23, 8-lead MSOP, and 14-lead TSSOP
APPLICATIONS
Automotive infotainment systems
Automotive driver assistance systems
Consumer video
Professional video
Video switchers
Active filters
Clock buffers
Output Op Amps
ADA4851-1/ADA4851-2/ADA4851-4
PIN CONFIGURATIONS
ADA4851-1
V
1
OUT
2
–V
S
3
+IN
TOP VIEW (Not to Scale)
Figure 1. ADA4851-1, 6-Lead SOT-23 (RJ-6)
ADA4851-2
OUT1
1
2
–IN1
+IN1
3
4
–V
S
(Not to Scale)
Figure 2. ADA4851-2, 8-Lead MSOP (RM-8)
1
V
1
OUT
2
–IN 1
3
+IN 1
+V
+IN 2
–IN 2
OUT
S
2
ADA4851-4
4
(Not to Scale)
5
6
7
TOP VIEW
Figure 3. ADA4851-4, 14-Lead TSSOP (RU-14)
TOP VIEW
6
+V
S
5
POWER DOWN
4
–IN
8
+V
7
OUT
–IN2
6
+IN2
5
14
V
13
–IN 4
12
+IN 4
11
–V
+IN 3
10
9
–IN 3
8
V
S
OUT
OUT
S
05143-058
4
3
05143-001
05143-054
GENERAL DESCRIPTION
The ADA4851-1 (single), ADA4851-2 (dual), and ADA4851-4
(quad) are low cost, high speed, voltage feedback rail-to-rail
output op amps. Despite their low price, these parts provide
excellent overall performance and versatility. The 130 MHz,
−3 dB bandwidth and high slew rate make these amplifiers well
suited for many general-purpose, high speed applications.
The ADA4851 family is designed to operate at supply voltages
as low as +3 V and up to ±5 V. These parts provide true singlesupply capability, allowing input signals to extend 200 mV
below the negative rail and to within 2.2 V of the positive rail.
On the output, the amplifiers can swing within 60 mV of either
supply rail.
With their combination of low price, excellent differential gain
(0.08%), differential phase (0.09º), and 0.1 dB flatness out to
11 MHz, these amplifiers are ideal for consumer video applications.
The ADA4851-1W, ADA4851-2W, and ADA4851-4W are
automotive grade versions, qualified for automotive applications.
Rev. J
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
See the Automotive Products section for more details. The
ADA4851 family is designed to work over the extended
temperature range (−40°C to +125°C).
4
G = +1
= 5V
V
3
S
= 1kΩ
R
L
= 5pF
C
2
L
1
0
–1
–2
–3
CLOSED-LOOP GAIN (dB)
–4
–5
–6
1 10010 1k
FREQUENCY (MHz)
Figure 4. Small-Signal Frequency Response
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2004–2010 Analog Devices, Inc. All rights reserved.
05143-004
ADA4851-1/ADA4851-2/ADA4851-4
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 4
Specifications with +3 V Supply ................................................. 4
Specifications with +5 V Supply ................................................. 6
Specifications with ±5 V Supply ................................................. 8
Absolute Maximum Ratings .......................................................... 10
Thermal Resistance .................................................................... 10
REVISION HISTORY
10/10—Rev. I to Rev. J
Added Output Characteristics, Linear Output Current
Parameter, Table 2 ............................................................................. 7
Added Output Characteristics, Linear Output Current
Parameter, Table 3 ............................................................................. 9
5/10—Rev. H to Rev. I
Changes to Power-Down Bias Current Parameter, Table 1 ........ 3
Moved Automotive Products Section .......................................... 20
4/10—Rev. G. to Rev. H
Added Automotive Product Information ................... Throughout
Changes to Table 1 Through Table 3 .............................................. 3
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 20
9/09—Rev. F. to Rev. G
Moved Automotive Products Section .......................................... 18
Updated Outline Dimensions ....................................................... 19
5/09—Rev. E. to Rev. F
Changes to Features, Applications, and General Description
Sections .............................................................................................. 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 5
Changes to Table 3 ............................................................................ 7
Changes to Figure 27 and Figure 28 ............................................. 13
Changes to Figure 47, Added Automotive Products Section ... 18
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 20
ESD Caution................................................................................ 10
Typical Performance Characteristics ........................................... 11
Circuit Description......................................................................... 17
Headroom Considerations ........................................................ 17
Overload Behavior and Recovery ............................................ 18
Single-Supply Video Amplifier ................................................. 19
Video Reconstruction Filter ...................................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 21
Automotive Products ................................................................. 21
8/07—Rev. D to Rev. E
Changes to Applications ................................................................... 1
Changes to Common-Mode Rejection Ratio, Conditions ........... 5
Changes to Headroom Considerations Section ......................... 13
4/06—Rev. C to Rev. D
Added Video Reconstruction Filter Section ............................... 15
5/05—Rev. B to Rev. C
Changes to General Description ..................................................... 1
Changes to Input Section .............................................................. 14
4/05—Rev. A to Rev. B
Added ADA4851-2, Added 8-Lead MSOP ..................... Universal
Changes to Features .......................................................................... 1
Changes to General Description ..................................................... 1
Changes to Table 1 ............................................................................. 3
Changes to Table 2 ............................................................................. 4
Changes to Table 3 ............................................................................. 5
Changes to Table 4 and Figure 5 ...................................................... 6
Changes to Figure 12, Figure 15, and Figure 17 ............................ 8
Changes to Figure 18 ......................................................................... 9
Changes to Figure 28 Caption ...................................................... 10
Changes to Figure 33 ...................................................................... 11
Changes to Figure 36 and Figure 38, Added Figure 39 ............. 12
Changes to Circuit Description Section ...................................... 13
Changes to Headroom Considerations Section ......................... 13
Changes to Overload Behavior and Recovery Section .............. 14
Added Single-Supply Video Amplifier Section .......................... 15
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 17
Rev. J | Page 2 of 24
ADA4851-1/ADA4851-2/ADA4851-4
1/05—Rev. 0 to Rev. A
Added ADA4851-4 ............................................................Universal
Added 14-Lead TSSOP...................................................... Universal
Changes to Features..........................................................................1
Changes to General Description .....................................................1
Changes to Figure 3...........................................................................1
Changes to Specifications.................................................................3
Changes to Figure 4...........................................................................6
Changes to Figure 8...........................................................................7
Changes to Figure 11 ........................................................................8
Changes to Figure 22 ........................................................................ 9
Changes to Figure 23, Figure 24, and Figure 25..........................10
Changes to Figure 27 and Figure 28 .............................................10
Changes to Figure 29, Figure 30, and Figure 31..........................11
Changes to Figure 34 ......................................................................11
Added Figure 37..............................................................................12
Changes to Ordering Guide...........................................................15
Updated Outline Dimensions........................................................15
10/04—Revision 0: Initial Version
Rev. J | Page 3 of 24
ADA4851-1/ADA4851-2/ADA4851-4
SPECIFICATIONS
SPECIFICATIONS WITH +3 V SUPPLY
TA = 25°C, RF = 0 Ω for G = +1, RF = 1 kΩ for G > +1, RL = 1 kΩ, unless otherwise noted.
Table 1.
Parameter Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
ADA4851-1W/2W/4W only: T
G = +1, V
ADA4851-1W/2W/4W only: T
G = +2, V
Bandwidth for 0.1 dB Flatness G = +2, V
Slew Rate G = +2, V
Settling Time to 0.1% G = +2, V
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion, HD2/HD3 fC = 1 MHz, V
Input Voltage Noise f = 100 kHz 10 nV/√Hz
Input Current Noise f = 100 kHz 2.5 pA/√Hz
Differential Gain G = +3, NTSC, RL = 150 Ω, V
Differential Phase G = +3, NTSC, RL = 150 Ω, V
Crosstalk (RTI)—ADA4851-2/ADA4851-4 f = 5 MHz, G = +2, V
DC PERFORMANCE
Input Offset Voltage 0.6 3.3 mV
ADA4851-1W/2W/4W only: T
Input Offset Voltage Drift 4 μV/°C
Input Bias Current
2.3 4.0 μA
ADA4851-1W/2W/4W only: T
Input Bias Current Drift 6 nA/°C
Input Bias Offset Current 20 nA
Open-Loop Gain V
OUT
ADA4851-1W/2W/4W only: T
ADA4851-1W only: T
INPUT CHARACTERISTICS
Input Resistance Differential/common-mode 0.5/5.0 MΩ
Input Capacitance 1.2 pF
Input Common-Mode Voltage Range −0.2 to +0.8 V
Input Overdrive Recovery Time (Rise/Fall) VIN = +3.5 V, −0.5 V, G = +1 60/60 ns
Common-Mode Rejection Ratio VCM = 0 V to 0.5 V −81 −103 dB
ADA4851-1W/2W/4W only: T
POWER-DOWN—ADA4851-1 ONLY
Power-Down Input Voltage Power-down <1.1 V
Power-up >1.6 V
Turn-Off Time 0.7 μs
Turn-On Time 60 ns
Power-Down Bias Current
Enabled
POWER DOWN
ADA4851-1W only: T
Power-Down
POWER DOWN
ADA4851-1W only: T
= 0.1 V p-p
OUT
= 0.5 V p-p 80 105 MHz
OUT
= 1 V p-p, RL = 150 Ω 40 MHz
OUT
= 1 V p-p, RL = 150 Ω 15 MHz
OUT
= 1 V step 100 V/μs
OUT
= 1 V step, RL = 150 Ω 50 ns
OUT
OUT
to T
MIN
to T
MIN
= 1 V p-p, G = −1 −73/−79 dBc
= 2 V p-p 0.44 %
OUT
= 2 V p-p 0.41 Degrees
OUT
= 1.0 V p-p −70/−60 dB
OUT
to T
MIN
to T
MIN
104 130 MHz
95 MHz
MAX
72 MHz
MAX
7.3 mV
MAX
5.0 μA
MAX
= 0.25 V to 0.75 V 80 105 dB
= 3 V
= 0 V
MIN
MIN
MIN
to T
MIN
to T
75
MAX
to T
MIN
to T
10 μA
MAX
to T
−20 μA
MAX
78 dB
MAX
−65 dB
MAX
4 10 μA
−14 −20 μA
Rev. J | Page 4 of 24
ADA4851-1/ADA4851-2/ADA4851-4
Parameter Conditions/Comments Min Typ Max Unit
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall) VIN = +0.7 V, −0.1 V, G = +5 70/100 ns
Output Voltage Swing 0.05 to 2.91 0.03 to 2.94 V
ADA4851-1W/2W/4W only: T
Short-Circuit Current Sinking/sourcing 90/70 mA
POWER SUPPLY
Operating Range 2.7 12 V
Quiescent Current per Amplifier 2.4 2.7 mA
ADA4851-1W/2W/4W only: T
Quiescent Current (Power-Down)
POWER DOWN
ADA4851-1W only: T
= low
MIN
to T
Positive Power Supply Rejection +VS = +2.5 V to +3.5 V, −VS = −0.5 V −81 −100 dB
ADA4851-1W/2W/4W only: T
Negative Power Supply Rejection +VS = +2.5 V, −VS = −0.5 V to –1.5 V −80 −100 dB
ADA4851-1W/2W/4W only: T
to T
MIN
MIN
0.06 to 2.89 V
MAX
to T
2.7 mA
MAX
0.2 0.3 mA
0.3 mA
MAX
to T
MIN
MIN
−81 dB
MAX
to T
−80 dB
MAX
Rev. J | Page 5 of 24
ADA4851-1/ADA4851-2/ADA4851-4
SPECIFICATIONS WITH +5 V SUPPLY
TA = 25°C, RF = 0 Ω for G = +1, RF = 1 kΩ for G > +1, RL = 1 kΩ, unless otherwise noted.
Table 2.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
ADA4851-1W/2W/4W only: T
G = +1, V
ADA4851-1W/2W/4W only: T
G = +2, V
Bandwidth for 0.1 dB Flatness G = +2, V
Slew Rate G = +2, V
Settling Time to 0.1% G = +2, V
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion, HD2/HD3 fC = 1 MHz, V
Input Voltage Noise f = 100 kHz 10 nV/√Hz
Input Current Noise f = 100 kHz 2.5 pA/√Hz
Differential Gain G = +2, NTSC, RL = 150 Ω, V
Differential Phase G = +2, NTSC, RL = 150 Ω, V
Crosstalk (RTI)—ADA4851-2/ADA4851-4 f = 5 MHz, G = +2, V
DC PERFORMANCE
Input Offset Voltage 0.6 3.4 mV
ADA4851-1W/2W/4W only: T
Input Offset Voltage Drift 4 μV/°C
Input Bias Current
2.2 3.9 μA
ADA4851-1W/2W/4W only: T
Input Bias Current Drift 6 nA/°C
Input Bias Offset Current 20 nA
Open-Loop Gain V
OUT
ADA4851-1W/2W/4W only: T
INPUT CHARACTERISTICS
Input Resistance Differential/common-mode 0.5/5.0 MΩ
Input Capacitance 1.2 pF
Input Common-Mode Voltage Range −0.2 to +2.8 V
Input Overdrive Recovery Time (Rise/Fall) VIN = +5.5 V, −0.5 V, G = +1 50/45 ns
Common-Mode Rejection Ratio VCM = 0 V to 2 V −86 −105 dB
ADA4851-1W/2W/4W only: T
POWER-DOWN—ADA4851-1 ONLY
Power-Down Input Voltage Power-down <1.1 V
Power-up >1.6 V
Turn-Off Time 0.7 μs
Turn-On Time 50 ns
Power-Down Bias Current
Enabled
POWER DOWN
ADA4851-1W only: T
Power-Down
POWER DOWN
ADA4851-1W only: T
= 0.1 V p-p 96 125 MHz
OUT
to T
MIN
= 0.5 V p-p 72 96 MHz
OUT
MIN
= 1.4 V p-p, RL = 150 Ω 35 MHz
OUT
= 1.4 V p-p, RL = 150 Ω 11 MHz
OUT
= 2 V step 200 V/μs
OUT
= 2 V step, RL = 150 Ω 55 ns
OUT
= 2 V p-p, G = +1 −80/−100 dBc
OUT
= 2 V p-p 0.08 %
OUT
= 2 V p-p 0.11 Degrees
OUT
= 2.0 V p-p −70/−60 dB
OUT
MIN
MIN
90 MHz
MAX
to T
64 MHz
MAX
to T
7.4 mV
MAX
to T
4.9 μA
MAX
= 1 V to 4 V 97 107 dB
to T
90 dB
MAX
to T
−80 dB
MAX
33 40 μA
−22 −30 μA
= 5 V
= 0 V
MIN
MIN
MIN
MIN
to T
40 μA
MAX
to T
−30 μA
MAX
Rev. J | Page 6 of 24
ADA4851-1/ADA4851-2/ADA4851-4
Parameter Conditions Min Typ Max Unit
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall) VIN = +1.1 V, −0.1 V, G = +5 60/70 ns
Output Voltage Swing 0.09 to 4.91 0.06 to 4.94 V
ADA4851-1W/2W/4W only: T
Linear Output Current 1% THD with 1 MHz, V
OUT
Short-Circuit Current Sinking/sourcing 110/90 mA
POWER SUPPLY
Operating Range 2.7 12 V
Quiescent Current per Amplifier 2.5 2.8 mA
ADA4851-1W/2W/4W only: T
Quiescent Current (Power-Down)
POWER DOWN
ADA4851-1W only: T
= low
MIN
to T
Positive Power Supply Rejection +VS = +5 V to +6 V, −VS = 0 V −82 −101 dB
ADA4851-1W/2W/4W only: T
Negative Power Supply Rejection +VS = +5 V, −VS = −0 V to −1 V −81 −101 dB
ADA4851-1W/2W/4W only: T
to T
MIN
0.11 to 4.89 V
MAX
= 2 V p-p 66 mA
to T
MIN
2.8 mA
MAX
0.2 0.3 mA
0.3 mA
MAX
to T
MIN
MIN
−82 dB
MAX
to T
−81 dB
MAX
Rev. J | Page 7 of 24
ADA4851-1/ADA4851-2/ADA4851-4
SPECIFICATIONS WITH ±5 V SUPPLY
TA = 25°C, RF = 0 Ω for G = +1, RF = 1 kΩ for G > +1, RL = 1 kΩ, unless otherwise noted.
Table 3.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
ADA4851-1W/2W/4W only: T
G = +1, V
ADA4851-1W/2W/4W only: T
G = +2, V
Bandwidth for 0.1 dB Flatness G = +2, V
Slew Rate G = +2, V
G = +2, V
Settling Time to 0.1% G = +2, V
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion, HD2/HD3 fC = 1 MHz, V
Input Voltage Noise f = 100 kHz 10 nV/√Hz
Input Current Noise f = 100 kHz 2.5 pA/√Hz
Differential Gain G = +2, NTSC, RL = 150 Ω, V
Differential Phase G = +2, NTSC, RL = 150 Ω, V
Crosstalk (RTI)—ADA4851-2/ADA4851-4 f = 5 MHz, G = +2, V
DC PERFORMANCE
Input Offset Voltage 0.6 3.5 mV
ADA4851-1W/2W/4W only: T
Input Offset Voltage Drift 4 μV/°C
Input Bias Current
2.2 4.0 μA
ADA4851-1W/2W/4W only: T
Input Bias Current Drift 6 nA/°C
Input Bias Offset Current 20 nA
Open-Loop Gain V
OUT
ADA4851-1W/2W/4W only: T
INPUT CHARACTERISTICS
Input Resistance Differential/common-mode 0.5/5.0 MΩ
Input Capacitance 1.2 pF
Input Common-Mode Voltage Range −5.2 to +2.8 V
Input Overdrive Recovery Time (Rise/Fall) VIN = ±6 V, G = +1 50/25 ns
Common-Mode Rejection Ratio VCM = 0 V to −4 V −90 −105 dB
ADA4851-1W/2W/4W only: T
POWER-DOWN—ADA4851-1 ONLY
Power-Down Input Voltage Power-down < −3.9 V
Power-up > −3.4 V
Turn-Off Time 0.7 μs
Turn-On Time 30 ns
Power-Down Bias Current
Enabled
POWER DOWN
ADA4851-1W only: T
Power-Down
POWER DOWN
ADA4851-1W only: T
= 0.1 V p-p 83 105 MHz
OUT
to T
MIN
= 1 V p-p 52 74 MHz
OUT
MIN
= 2 V p-p, RL = 150 Ω 40 MHz
OUT
= 2 V p-p, RL = 150 Ω 11 MHz
OUT
= 7 V step 375 V/μs
OUT
= 2 V step 190 V/μs
OUT
= 2 V step, RL = 150 Ω 55 ns
OUT
= 2 V p-p, G = +1 −83/−107 dBc
OUT
= 2 V p-p 0.08 %
OUT
= 2 V p-p 0.09 Degrees
OUT
= 2.0 V p-p −70/−60 dB
OUT
MIN
MIN
75 MHz
MAX
to T
42 MHz
MAX
to T
7.5 mV
MAX
to T
4.5 μA
MAX
= ±2.5 V 99 106 dB
to T
90 dB
MAX
to T
−86 dB
MAX
100 130 μA
−50 −60 μA
= +5 V
= −5 V
MIN
MIN
MIN
MIN
to T
130 μA
MAX
to T
−60 μA
MAX
Rev. J | Page 8 of 24
ADA4851-1/ADA4851-2/ADA4851-4
Parameter Conditions Min Typ Max Unit
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall) VIN = ±1.2 V, G = +5 80/50 ns
Output Voltage Swing −4.87 to +4.88 −4.92 to +4.92 V
ADA4851-1W/2W/4W only: T
Linear Output Current 1% THD with 1 MHz, V
OUT
Short-Circuit Current Sinking/sourcing 125/110 mA
POWER SUPPLY
Operating Range 2.7 12 V
Quiescent Current per Amplifier 2.9 3.2 mA
ADA4851-1W/2W/4W only: T
Quiescent Current (Power-Down)
POWER DOWN
ADA4851-1W only: T
= low
MIN
to T
Positive Power Supply Rejection +VS = +5 V to +6 V, −VS = −5 V −82 −101 dB
ADA4851-1W/2W/4W only: T
Negative Power Supply Rejection +VS = +5 V, −VS = −5 V to −6 V −81 −102 dB
ADA4851-1W/2W/4W only: T
to T
MIN
−4.85 to +4.85 V
MAX
= 2 V p-p 83 mA
to T
MIN
3.2 mA
MAX
0.2 0.325 mA
0.325 mA
MAX
to T
MIN
MIN
−82 dB
MAX
to T
−81 dB
MAX
Rev. J | Page 9 of 24
ADA4851-1/ADA4851-2/ADA4851-4
(
ABSOLUTE MAXIMUM RATINGS
P
= Quiescent Power + (Total Drive Power − Load Power)
Table 4.
Parameter Rating
Supply Voltage 12.6 V
Power Dissipation See Figure 5
Common-Mode Input Voltage −VS − 0.5 V to +VS + 0.5 V
Differential Input Voltage +VS to −VS
Storage Temperature Range −65°C to +125°C
Operating Temperature Range −40°C to +125°C
Lead Temperature JEDEC J-STD-20
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions; that is, θJA is specified
for device soldered in circuit board for surface-mount packages.
Table 5. Thermal Resistance
Package Type θJA Unit
6-lead SOT-23 170 °C/W
8-lead MSOP 150 °C/W
14-lead TSSOP 120 °C/W
Maximum Power Dissipation
The maximum safe power dissipation for the ADA4851-1/
ADA4851-2/ADA4851-4 is limited by the associated rise in
junction temperature (T
which is the glass transition temperature, the plastic changes its
properties. Even temporarily exceeding this temperature limit
may change the stresses that the package exerts on the die,
permanently shifting the parametric performance of the
amplifiers. Exceeding a junction temperature of 150°C for an
extended period can result in changes in silicon devices,
potentially causing degradation or loss of functionality.
The power dissipated in the package (P
quiescent power dissipation and the power dissipated in the die
due to the drive of the amplifier at the output. The quiescent
power is the voltage between the supply pins (V
quiescent current (I
) on the die. At approximately 150°C,
J
) is the sum of the
D
) times the
S
).
S
D
2
VV
⎛
()
D
S
IVP
SS
×+×=
⎜
2
⎝
RMS output voltages should be considered. If R
to −V
, as in single-supply operation, the total drive power is
S
V
× I
. If the rms signal levels are indeterminate, consider the
S
OUT
worst case, when V
()
D
= VS/4 for RL to midsupply.
OUT
2
)
V
4/
S
IVP
+×=
SS
R
L
In single-supply operation with R
case is V
OUT
= VS/2.
Airflow increases heat dissipation, effectively reducing θ
V
⎞
OUT
R
OUT
–
⎟
L
⎠
R
L
is referenced
L
referenced to −VS, the worst
L
.
JA
In addition, more metal directly in contact with the package
leads and through holes under the device reduces θ
.
JA
Figure 5 shows the maximum safe power dissipation in the
package vs. the ambient temperature for the 6-lead SOT-23
(170°C/W), the 8-lead MSOP (150°C/W), and the 14-lead
TSSOP (120°C/W) on a JEDEC standard 4-layer board. θ
JA
values are approximations.
2.0
TSSOP
1.5
MSOP
1.0
0.5
MAXIMUM POWER DISSIPATION (W)
0
–55 125
Figure 5. Maximum Power Dissipation vs. Temperature for a 4-Layer Board
SOT-23-6
–45–35–25–15–5 5 152535455565758595105115
AMBIENT TEMPERATURE (°C)
ESD CAUTION
05143-057
Rev. J | Page 10 of 24
ADA4851-1/ADA4851-2/ADA4851-4
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, RF = 0 Ω for G = +1, RF = 1 kΩ for G > +1, RL = 1 kΩ, unless otherwise noted.
1
0
–1
–2
–3
–4
CLOSED-LOOP GAIN (dB)
–5
–6
–7
1 10010
G = +10
FREQUENCY (MHz)
G = +2
VS = ±5V
= 150Ω
R
L
V
OUT
G = –1
Figure 6. Small-Signal Frequency Response for Various Gains
= 0.1V p-p
05143-006
4
G = +1
= 5V
V
3
S
= 1kΩ
R
L
= 0.1V p-p
V
2
OUT
1
0
–1
–2
–3
CLOSED-LOOP GAIN (dB)
–4
–5
–6
1 10010 300
FREQUENCY (MHz)
5pF
0pF
10pF
Figure 9. Small-Signal Frequency Response for Various Capacitive Loads
05143-010
1
0
VS = ±5V
–1
G = +1
= 0.1V p-p
V
OUT
–2
–3
–4
CLOSED-LOOP GAIN (dB)
–5
–6
1 10010 300
FREQUENCY (MHz)
R
L
RL = 150Ω
= 1kΩ
Figure 7. Small-Signal Frequency Response for Various Loads
2
G = +1
= 150Ω
R
L
1
= 0.1V p-p
V
OUT
0
–1
–2
–3
CLOSED-LOOP GAIN (dB)
–4
–5
V
= ±5V
S
V
= +5V
S
05143-009
1
0
VS = ±5V
–1
G = +1
= 0.1V p-p
V
OUT
–2
–3
–4
CLOSED-LOOP GAIN (dB)
–5
–6
1 10010
–40°C
+25°C
FREQUENCY (MHz)
+125°C
+85°C
300
Figure 10. Small-Signal Frequency Response for Various Temperatures
1
0
–1
–2
–3
–4
CLOSED-LOOP GAIN (dB)
–5
–6
G = +10
G = –1
VS = ±5V
= 150Ω
R
L
= 1V p-p
V
OUT
G = +2
05143-008
–6
1 10010 300
FREQUENCY (MHz)
Figure 8. Small-Signal Frequency Response for Various Supplies
05143-007
Rev. J | Page 11 of 24
–7
1 10010
FREQUENCY (MHz)
Figure 11. Large-Signal Frequency Response for Various Gains
05143-012
ADA4851-1/ADA4851-2/ADA4851-4
–
–
–
6.2
6.1
6.0
5.9
5.8
5.7
CLOSED-LOOP GAIN (dB)
5.6
5.5
5.4
0.1 100
V
= 100mV p-p
OUT
V
= 1V p-p
OUT
V
= 2V p-p
OUT
110
FREQUENCY (MHz)
VS = ±5V
G = +2
= 150Ω
R
L
R
= 1kΩ
F
Figure 12. 0.1 dB Flatness Response for Various Output Amplitudes
1
0
–1
–2
–3
R
L
= 150Ω
VS = ±5V
G = +1
V
= 1V p-p
OUT
R
= 1kΩ
L
05143-021
40
G = –1
= 3V
V
S
–50
= 150Ω
R
L
= 2V
V
OUT
–60
–70
–80
–90
HARMONIC DIST ORTIO N (dBc)
–100
–110
0.1 10
FREQUENCY (MHz )
HD2
HD3
1
Figure 15. Harmonic Distortion vs. Frequency
50
G = +2
= ±5V
V
S
–60
= 1kΩ
R
L
f = 2MHz
–70
–80
–90
HD2
HD3
05143-014
–4
CLOSED-LOOP GAIN (dB)
–5
–6
1 10010 300
FREQUENCY (MHz)
Figure 13. Large Frequency Response for Various Loads
140
120
100
80
60
40
OPEN-LOOP GAIN (dB)
20
0
–20
FREQUENCY (Hz)
PHASE
GAIN
100k10k100 1k10 1M 10M 100M 1G
Figure 14. Open-Loop Gain and Phase vs. Frequency
VS = ±5V
0
–30
–60
–90
–120
–150
–180
–210
–240
05143-015
OPEN-LOOP PHASE (Degrees)
05143-029
–100
HARMONIC DISTORTION (dBc)
–110
–120
012345678910
OUTPUT AMPLITUDE (V p-p)
Figure 16. Harmonic Distortion vs. Output Amplitude
40
G = +1
= 2V p-p
V
OUT
–50
=±5V
V
S
–60
–70
RL = 150Ω HD2
–80
–90
HARMONIC DIS TORTION (dBc)
–100
–110
0.1 10
RL = 1kΩ HD2
RL = 150Ω HD3
RL = 1kΩ HD3
1
FREQUENCY (MHz)
Figure 17. Harmonic Distortion vs. Frequency for Various Loads
05143-017
05143-016
Rev. J | Page 12 of 24
ADA4851-1/ADA4851-2/ADA4851-4
–
40
G = +1
= 2V p-p
V
OUT
–50
= 5V
V
S
–60
–70
–80
RL = 150Ω HD2
–90
HARMONIC DIS TORTION ( dBc)
–100
–110
0.1 10
RL = 1kΩ HD2
RL = 150Ω HD3
RL = 1kΩ HD3
1
FREQUENCY (MHz)
Figure 18. Harmonic Distortion vs. Frequency for Various Loads
6
5
4
3
2
1
0
–1
–2
–3
INPUT AND OUTPUT VOLTAGE (V)
–4
–5
–6
0 100 200 300 400 500 600 700 800 900 1k
5 × INPUT
OUTPUT
TIME (ns)
G = +5
= ±5V
V
S
= 150Ω
R
L
f = 1MHz
Figure 19. Output Overdrive Recovery
6
5
4
3
2
1
0
–1
–2
–3
INPUT AND OUTPUT VOLTAGE (V)
–4
–5
–6
OUTPUT
0 100 200 300 400 500 600 700 800 900 1k
INPUT
TIME (ns)
G = +1
= ±5V
V
S
= 150Ω
R
L
f = 1MHz
Figure 20. Input Overdrive Recovery
05143-013
05143-019
05143-022
0.075
G = +1 OR +2
R
= 1kΩ
L
0.050
0.025
0
–0.025
–0.050
OUTPUT VOLTAGE FOR ±5V SUPPLY (V)
–0.075
VS = +5V
500 100 150 200
TIME (ns)
V
Figure 21. Small-Signal Transient Response for Various Supplies
2.575
G = +1
V
= 5V
S
= 150Ω
R
L
2.550
2.525
2.500
2.475
OUTPUT VOLTAGE (V)
2.450
2.425
0 20 40 60 80 100 120 140 160 180 200
10pF
0pF
TIME (ns)
Figure 22. Small-Signal Transient Response for Various Capacitive Loads
1.5
G = +2
R
= 150Ω
L
1.0
= ±5V
V
S
0.5
0
–0.5
–1.0
OUTPUT VOLTAGE FOR ±5V SUPPLY (V)
–1.5
VS = +5V
500 100 150 200
TIME (ns)
Figure 23. Large-Signal Transient Response for Various Supplies
= ±5V
S
2.575
2.550
2.525
2.500
2.475
2.450
2.425
3.0
2.5
2.0
1.5
1.0
0.5
0
OUTPUT VOLTAGE FOR 5V SUPPLY (V)
05143-024
05143-026
OUTPUT VOLTAGE FOR 5V SUPPLY (V)
05143-028
Rev. J | Page 13 of 24
ADA4851-1/ADA4851-2/ADA4851-4
R
A
T
6
V
POWER DOWN
5
4
3
AGE (V)
2
VOL
1
G = +2
V
= 5V
S
f
= 400kHz
IN
–0.5
1.5
1.0
0.5
G = +1
R
= 150Ω
L
= ±5V
V
S
0
VS = +5V
3.0
2.5
2.0
1.5
1.0
–1.0
OUTPUT VOLTAGE FOR ±5V SUPPLY (V)
–1.5
500 100 150 200
TIME (ns)
Figure 24. Large-Signal Transient Response for Various Supplies
0.5
(V)
S
0.4
0.3
0.2
0.1
DC VOLTAGE DIFFERENTIAL FROM V
0
0 5 10 15 20 25 30 35
LOAD CURRENT (mA)
+VS– V
VS = +3V
OUT
V
S
–V
– V
S
OUT
Figure 25. Output Saturation Voltage vs. Load Current
600
G = +2
V
= ±5V
S
R
= 1kΩ
L
500
400
TE (V/µs)
300
200
SLEW
100
25% TO 75% OF V
NEGATIVE SLEW RATE
OUT
POSITIVE SLEW RATE
= ±5V
0.5
0
OUTPUT VOLTAGE FOR 5V SUPPLY (V)
05143-027
05143-049
0
–1
03015 45
V
OUT
TIME (µs)
Figure 27. ADA4851-1, Power-Up/Power-Down Time
3.5
3.0
2.5
2.0
1.5
1.0
SUPPLY CURRENT (mA)
0.5
0
–5 –4 –3 –2 –1 0 1 2 3 4 5
Figure 28. ADA4851-1, Supply Current vs.
VS = ±5V
V
= +5V
S
POWER DOWN VOLTAGE (V)
POWER DOWN
300
200
VS = +3V
INPUT OFFSET VOLTAGE (μV)
100
–100
–200
–300
VS = ±5V
0
V
= +5V
S
V
S
= +3V
Pin Voltage
05143-033
05143-034
0
0123456 789
OUTPUT VOLTAGE STEP (V p-p)
Figure 26. Slew Rate vs. Output Voltage Step
10
05143-032
–400
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 29. Input Offset Voltage vs. Temperature for Various Supplies
05143-035
Rev. J | Page 14 of 24
ADA4851-1/ADA4851-2/ADA4851-4
2.2
2.0
1000
G = +1
I
+, VS = ±5V
1.8
IB+, VS = +5V
1.6
INPUT BIAS CURRENT (μA)
1.4
1.2
–40 –25 –10 5 20 35 50 65 80 95 110 125
B
–, VS = +5V
I
B
TEMPERATURE (°C)
I
–, VS = ±5V
B
Figure 30. Input Bias Current vs. Temperature for Various Supplies
0.09
(V)
S
0.08
+VS– V
OUT
0.07
–V
0.06
0.05
DC VOLTAGE DIFFERENTIAL FROM V
0.04
–40 –25 –10 5 20 35 50 65 80 95 110 125
– V
S
OUT
VS = ±5V
+VS– V
OUT
–VS– V
TEMPERATURE (°C)
OUT
V
= +5V
S
Figure 31. Output Saturation vs. Temperature for Various Supplies
3.2
VS = ±5V
3.0
2.8
= +5V
V
2.6
2.4
SUPPLY CURRENT (mA)
2.2
S
VS = +3V
05143-036
05143-037
100
10
VOLTAGE NOISE (nV/ Hz)
1
100 1k 10k 100k 1M 10M
10 100M
FREQUENCY (Hz)
Figure 33. Voltage Noise vs. Frequency
100
CURRENT NOISE (pA/ Hz)
G = +2
10
1
100 1k 10k 100k 1M 10M 100M
10
FREQUENCY (Hz)
Figure 34. Current Noise vs. Frequency
80
VS = ±5V
N = 420
70
x = –260µV
σ = 780µV
60
50
40
COUNT
30
20
10
05143-044
05143-045
2.0
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 32. Supply Current vs. Temperature for Various Supplies
05143-038
Rev. J | Page 15 of 24
0
–4 –3 –2 –1 0 1 2 3 4
VOS (mV)
Figure 35. Input Offset Voltage Distribution
05143-047
ADA4851-1/ADA4851-2/ADA4851-4
–30
VS = ±5V
–40
–50
–60
–70
–80
–90
–100
COMMON-MODE REJECTION (dB)
–110
–120
1k 10k 100k 1M 10M 100M 1G
FREQUENCY (Hz)
Figure 36. Common-Mode Rejection Ratio (CMRR) vs. Frequency
0
VS = ±5V
–10
–20
–30
–40
–50
–60
–70
–80
–90
POWER SUPPLY REJECTION (dB)
–100
–110
100 1k 10k 100k 1M 10M 100M 1G
+PSR
–PSR
FREQUENCY (Hz)
Figure 37. Power Supply Rejection (PSR) vs. Frequency
05143-020
05143-023
0
G = +2
–10
V
= 5V
S
= 1kΩ
R
L
V
0.1
= 1V p-p
IN
–20
–30
–40
–50
–60
CROSSTALK (dB)
–70
–80
–90
–100
Figure 38. ADA4851-4, RTI Crosstalk vs. Frequency
0
G = +2
–10
V
= 5V
S
= 1kΩ
R
L
V
= 1V p-p
–20
IN
–30
–40
–50
–60
CROSSTALK (dB)
–70
–80
–90
–100
0.1
Figure 39. ADA4851-2, RTI Crosstalk vs. Frequency
DRIVE AMPS 1, 2, AND 4
LISTEN AMP 3
DRIVE AMP 1
LISTEN AMP 2
1 10 100
FREQUENCY (MHz)
DRIVE AMP 1
LISTEN AMP 2
DRIVE AMP 2
LISTEN AMP 1
1 10 100
FREQUENCY (MHz)
05143-055
05143-060
Rev. J | Page 16 of 24
ADA4851-1/ADA4851-2/ADA4851-4
CIRCUIT DESCRIPTION
The ADA4851-1/ADA4851-2/ADA4851-4 feature a high slew
rate input stage that is a true single-supply topology, capable of
sensing signals at or below the negative supply rail. The rail-torail output stage can pull within 60 mV of either supply rail when
driving light loads and within 0.17 V when driving 150 Ω. High
speed performance is maintained at supply voltages as low as 2.7 V.
HEADROOM CONSIDERATIONS
These amplifiers are designed for use in low voltage systems.
To obtain optimum performance, it is useful to understand the
behavior of the amplifiers as input and output signals approach
the headroom limits of the amplifiers. The input common-mode
voltage range of the amplifiers extends from the negative supply
voltage (actually 200 mV below the negative supply), or from
ground for single-supply operation, to within 2.2 V of the positive
supply voltage. Therefore, at a gain of 3, the amplifiers can
provide full rail-to-rail output swing for supply voltages as low
as 3.3 V and down to 3 V for a gain of 4.
Exceeding the headroom limit is not a concern for any inverting
gain on any supply voltage as long as the reference voltage at the
positive input of the amplifier lies within the input common- mode
range of the amplifier.
The input stage is the headroom limit for signals approaching
the positive rail. Figure 40 shows a typical offset voltage vs. the
input common-mode voltage for the ADA4851-1/ADA4851-2/
ADA4851-4 amplifiers on a ±5 V supply. Accurate dc performance
is maintained from approximately 200 mV below the negative
supply to within 2.2 V of the positive supply. For high speed
signals, however, there are other considerations. Figure 41
shows −3 dB bandwidth vs. input common-mode voltage for a
unity-gain follower. As the common-mode voltage approaches
2 V of positive supply, the amplifier responds well but the
bandwidth begins to drop as the common-mode voltage
approaches the positive supply. This can manifest itself in
increased distortion or settling time. Higher frequency signals
require more headroom than the lower frequencies to maintain
distortion performance.
440
460
480
500
(μV)
520
OS
V
540
560
580
600
–6 –5 –4 –3 –2 –1 0 1 2 3 4
VCM (V)
Figure 40. V
2
G = +1
= 1kΩ
R
L
1
= 5V
V
S
0
–1
–2
GAIN (dB)
–3
–4
–5
–6
0.1 101 100
vs. Common-Mode Voltage, VS = ±5 V
OS
VCM = 3.0V
V
CM
V
CM
V
CM
FREQUENCY (MHz)
= 3.1V
= 3.2V
= 3.3V
Figure 41. Unity-Gain Follower Bandwidth vs. Input Common-Mode
1000
05143-046
05143-050
Rev. J | Page 17 of 24
ADA4851-1/ADA4851-2/ADA4851-4
Figure 42 illustrates how the rising edge settling time for the
amplifier is configured as a unity-gain follower, stretching out
as the top of a 1 V step input that approaches and exceeds the
specified input common-mode voltage limit.
For signals approaching the negative supply and inverting gain
and high positive gain configurations, the headroom limit is the
output stage. The ADA4851-1/ADA4851-2/ADA4851-4 amplifiers
use a common emitter output stage. This output stage maximizes
the available output range, limited by the saturation voltage of
the output transistors. The saturation voltage increases with the
drive current that the output transistor is required to supply due
to the collector resistance of the output transistor.
3.6
G = +1
= 1kΩ
R
3.4
L
= 5V
V
S
3.2
3.0
V
V
V
V
V
STEP
STEP
STEP
STEP
STEP
= 2V TO 3V
= 2.1V TO 3.1V
= 2.2V TO 3.2V
= 2.3V TO 3.3V
= 2.4V TO 3.4V
TIME (ns)
05143-052
2.8
2.6
2.4
OUTPUT VOLTAGE (V)
2.2
2.0
1.8
0 102030405060708090100
Figure 42. Output Rising Edge for 1 V Step at Input Headroom Limits
As the saturation point of the output stage is approached, the
output signal shows increasing amounts of compression and
clipping. As in the input headroom case, higher frequency
signals require slightly more headroom than the lower frequency signals. Figure 16 illustrates this point by plotting the
typical harmonic distortion vs. the output amplitude.
OVERLOAD BEHAVIOR AND RECOVERY
Input
The specified input common-mode voltage of the ADA4851-1/
ADA4851-2/ADA4851-4 is 200 mV below the negative supply
to within 2.2 V of the positive supply. Exceeding the top limit
results in lower bandwidth and increased rise time, as shown in
Figure 41 and Figure 42. Pushing the input voltage of a unitygain follower to less than 2 V from the positive supply leads to
the behavior shown in Figure 43—an increasing amount of output
error as well as a much increased settling time. The recovery time
from input voltages of 2.2 V or closer to the positive supply is
approximately 55 ns, which is limited by the settling artifacts
caused by transistors in the input stage coming out of saturation.
The amplifiers do not exhibit phase reversal, even for input
voltages beyond the voltage supply rails. Going more than 0.6 V
beyond the power supplies turns on protection diodes at the input
stage, which greatly increases the current draw of the devices.
3.50
G = +1
R
= 1k
Ω
L
VS = 5V
3.25
V
= 2.25V TO 3.25V
3.00
2.75
2.50
OUTPUT VOLTAGE (V)
2.25
2.00
0 100 200 300 400 500 600 700 800 900 1k
STEP
= 2.25V TO
V
STEP
3.5V, 4V, AND 5V
TIME (ns)
Figure 43. Pulse Response of G = +1 Follower, Input Step Overloading
the Input Stage
Output
Output overload recovery is typically within 35 ns after the
input of the amplifier is brought to a nonoverloading value.
Figure 44 shows output recovery transients for the amplifier
configured in an inverting gain of 1 recovering from a saturated
output from the top and bottom supplies to a point at midsupply.
7
6
5
4
3
INPUT
VOLTAGE
EDGES
2
1
0
INPUT AND OUTPUT VOLTAGE (V)
–1
–2
0 102030405060708090100
V
OUT
TIME (ns)
= 5V TO 2.5V
V
OUT
Figure 44. Overload Recovery
G = –1
= 1kΩ
R
L
= 5V
V
S
= 0V TO 2.5V
05143-051
05143-053
Rev. J | Page 18 of 24
ADA4851-1/ADA4851-2/ADA4851-4
T
SINGLE-SUPPLY VIDEO AMPLIFIER
The ADA4851 family of amplifiers is well suited for portable
video applications. When operating in low voltage single-supply
applications, the input signal is limited by the input stage
headroom. For additional information, see the Headroom
Considerations section. Tabl e 6 shows the recommended values
for voltage, input signal, various gains, and output signal swing
for the typical video amplifier shown in Figure 45.
R
F
+V
P
R
G
D
V
IN
Table 6. Recommended Values
Supply
Voltage
(V)
Input
Range
(V)
3 0 to 0.8 1 1 2 1.6 0.8
3 0 to 0.8 0.499 1 3 2.4 1.2
5 0 to 2.8 1 1 2 4.9 2.45
C1
S
2.2μF
+
C2
0.01μF
U1
V′
Figure 45. Video Amplifier
R
G
(kΩ)
RF
(kΩ)
75Ω
75Ω CABLE
Gain
(V/V)
V’
(V)
75Ω
V
V
(V)
OUT
OUT
05143-059
An example of an 8 MHz, three-pole, Sallen-Key, low-pass,
video reconstruction filter is shown in Figure 46. This circuit
features a gain of 3, has a 0.1 dB bandwidth of 8.2 MHz, and
over 17 dB attenuation at 27 MHz (see Figure 47). The filter has
three poles; two are active with a third passive pole (R6 and C4)
placed at the output. C3 improves the filter roll-off. R6, R7, and
R8 comprise the video load of 150 Ω. Components R6, C4, R7,
R8, and the input termination of the network analyzer form a
12.8 dB attenuator; therefore, the reference level is roughly
−3.3 dB, as shown in Figure 47.
C2
51pF
R2
47Ω
R3
125Ω
51pF
+3V
R6
R7
6.8Ω
C1
R4
2kΩ
C3
R5
6.8pF
1kΩ
1: –3.3931dB 8.239626M Hz5dB/REF –15dB
1
68.1Ω
C4
1nF
R8
75Ω
V
VIDEO DAC
I
OUT
R1
37.4Ω
Figure 46. 8 MHz Video Reconstruction Filter Schematic
OU
05143-061
VIDEO RECONSTRUCTION FILTER
At higher frequencies, active filters require wider bandwidths to
work properly. Excessive phase shift introduced by lower frequency
op amps can significantly affect the filter performance.
A common application for active filters is at the output of video
DACs/encoders. The filter, or more appropriately, the video
reconstruction filter, is used at the output of a video DAC/
encoder to eliminate the multiple images that are created during
the sampling process within the DAC. For portable video applications, the ADA4851 family of amplifiers is an ideal choice due
to its lower power requirements and high performance.
0.03 0.1 1 10 100
FREQUENCY (MHz)
Figure 47. Video Reconstruction Filter Frequency Performance
05143-062
Rev. J | Page 19 of 24
ADA4851-1/ADA4851-2/ADA4851-4
0
0
OUTLINE DIMENSIONS
3.00
2.90
2.80
1.70
1.60
1.50
PIN 1
INDICATOR
1.30
1.15
0.90
.15 MAX
.05 MIN
65
123
4
1.90
BSC
0.50 MAX
0.30 MIN
COMPLI ANT TO JE DEC STANDARDS MO -178-AB
0.95 BSC
1.45 MAX
0.95 MIN
3.00
2.80
2.60
SEATING
PLANE
0.20 MAX
0.08 MIN
10°
0.55
0.60
4°
BSC
0°
0.45
0.35
121608-A
Figure 48. 6-Lead Small Outline Transistor Package [SOT-23]
(RJ-6)
Dimensions shown in millimeters
3.20
3.00
2.80
8
5
4
0.40
0.25
5.15
4.90
4.65
1.10 MAX
15° MAX
6°
0°
0.23
0.09
0.80
0.55
0.40
10-07-2009-B
3.20
3.00
2.80
PIN 1
IDENTIFIER
0.95
0.85
0.75
0.15
0.05
COPLANARITY
1
0.65 BSC
0.10
COMPLIANT TO JEDEC STANDARDS MO-187-AA
Figure 49. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
Rev. J | Page 20 of 24
ADA4851-1/ADA4851-2/ADA4851-4
5.10
5.00
4.90
4.50
4.40
4.30
PIN 1
1.05
1.00
0.80
0.15
0.05
COPLANARITY
0.10
14
1
0.65 BSC
0.30
0.19
COMPLIANT TO JEDEC STANDARDS MO-153-AB-1
8
6.40
BSC
7
1.20
0.20
MAX
SEATING
PLANE
0.09
8°
0°
0.75
0.60
0.45
061908-A
Figure 50. 14-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-14)
Dimensions shown in millimeters
ORDERING GUIDE
1, 2
Model
ADA4851-1YRJZ-R2 −40°C to +125°C 6-Lead Small Outline Transistor Package (SOT-23) RJ-6 HHB
ADA4851-1YRJZ-RL −40°C to +125°C 6-Lead Small Outline Transistor Package (SOT-23) RJ-6 HHB
ADA4851-1YRJZ-RL7 −40°C to +125°C 6-Lead Small Outline Transistor Package (SOT-23) RJ-6
ADA4851-1WYRJZ-R7
ADA4851-2YRMZ −40°C to +125°C 8-Lead Mini Small Outline Package (MSOP) RM-8 HSB
ADA4851-2YRMZ-RL −40°C to +125°C 8-Lead Mini Small Outline Package (MSOP) RM-8 HSB
ADA4851-2YRMZ-RL7 −40°C to +125°C 8-Lead Mini Small Outline Package (MSOP) RM-8
ADA4851-2WYRMZ-R7
ADA4851-4YRUZ –40°C to +125°C 14-Lead Thin Shrink Small Outline Package (TSSOP) RU-14
ADA4851-4YRUZ-RL –40°C to +125°C 14-Lead Thin Shrink Small Outline Package (TSSOP) RU-14
ADA4851-4YRUZ-RL7 –40°C to +125°C 14-Lead Thin Shrink Small Outline Package (TSSOP) RU-14
ADA4851-4WYRUZ-R7 –40°C to +125°C 14-Lead Thin Shrink Small Outline Package (TSSOP) RU-14
ADA4851-1YRJ-EBZ
ADA4851-2YRM-EBZ
ADA4851-4YRU-EBZ
1
Z = RoHS Compliant Part.
2
W = qualified for automotive applications.
Temperature Range Package Description Package Option Branding
HHB
−40°C to +125°C 6-Lead Small Outline Transistor Package (SOT-23) RJ-6 H1Z
HSB
−40°C to +125°C 8-Lead Mini Small Outline Package (MSOP) RM-8 H1Y
6-Lead SOT-23 Evaluation Board
8-Lead MSOP Evaluation Board
14-Lead TSSOP Evaluation Board
AUTOMOTIVE PRODUCTS
The ADA4851-1W/ADA4851-2W/ADA4851-4W models are available with controlled manufacturing to support the quality and
reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the
commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade
products shown are available for use in automotive applications. Contact your local Analog Devices, Inc., account representative for
specific product ordering information and to obtain the specific Automotive Reliability reports for these models.
Rev. J | Page 21 of 24
ADA4851-1/ADA4851-2/ADA4851-4
NOTES
Rev. J | Page 22 of 24
ADA4851-1/ADA4851-2/ADA4851-4
NOTES
Rev. J | Page 23 of 24
ADA4851-1/ADA4851-2/ADA4851-4
NOTES
©2004–2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05143-0-10/10(J)
Rev. J | Page 24 of 24
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