Data Sheet
FEATURES
Qualified for automotive applications
Low power: 1.3 mA supply current/amplifier
High speed
125 MHz, –3 dB bandwidth (G = +1)
60 V/µs slew rate
80 ns settling time to 0.1%
Rail-to-rail input and output
No phase reversal, inputs 200 mV beyond rails
Wide supply range: 2.7 V to 12 V
Offset voltage: 6 mV maximum
Low input bias current
+0.7 µA to –1.5 µA
Small packaging
SOIC-8, SC70-6, SOT23-8, SOIC-14, TSSOP-14
Low Power, High Speed
Rail-to-Rail Input/Output Amplifier
AD8029/AD8030/AD8040
CONNECTION DIAGRAMS
NC
1
–IN
2
+IN
3
–V
S 4
8
7
6
5
DISABLE
+V
S
V
OUT
NC
03679-A-004
V
OUT 1
–V
S 2
+IN
3
6
+V
S
+
–
5
DISABLE
03679-A-002
NC = NO CONNECT
4
–IN
Figure 1. SOIC-8 (R)
Figure 2. SC70-6 (KS)
V
OUT
1
1
–IN 1
2
+IN 1
3
V
OUT
1
1
–IN 1
2
+IN 1
3
–V
S 4
8
7
6
5
14
13
12
11
10
9
8
V
OUT
4
–IN 4
+IN 4
–V
S
+IN 3
03679-A-001
+V
S
+V
OUT
2
03679-A-003
+V
S 4
+IN 2
5
–IN 2
6
V
OUT
2
7
APPLICATIONS
Automotive safety and vision systems
Battery-powered instrumentation
Filters
A-to-D drivers
Buffering
–IN 2
+IN 2
–IN 3
V
OUT
3
Figure 3. SOIC-8 (R) and
SOT23-8 (RJ)
Figure 4. SOIC-14 (R) and
TSSOP-14 (RU)
GENERAL DESCRIPTION
The AD8029 (single), AD8030 (dual), and AD8040 (quad) are
rail-to-rail input and output high speed amplifiers with a quiescent
current of only 1.3 mA per amplifier. Despite their low power
consumption, the amplifiers provide excellent performance with
125 MHz small signal bandwidth and 60 V/µs slew rate. Analog
Devices, Inc., proprietary XFCB process enables high speed and
high performance on low power.
This family of amplifiers exhibits true single-supply operation
with rail-to-rail input and output performance for supply voltages
ranging from 2.7 V to 12 V. The input voltage range extends
200 mV beyond each rail without phase reversal. The dynamic
range of the output extends to within 40 mV of each rail.
VOLTAGE (V)
systems where component density requires lower power
dissipation. The AD8040W is an automotive grade version,
qualified for automotive applications.
The AD8029/AD8030 are the only low power, rail-to-rail input
and output high speed amplifiers available in SOT23 and SC70
micro packages. The amplifiers are rated over the extended
industrial temperature range, –40°C to +125°C.
5.0
INPUT
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
G = +1
0.5 V
S
= +5V
R
L
= 1kΩ TIED TO MIDSUPPLY
0
TIME (µs)
OUTPUT
The AD8029/AD8030/AD8040 provide excellent signal quality
with minimal power dissipation. At G = +1, SFDR is –72 dBc at
1 MHz and settling time to 0.1% is only 80 ns. Low distortion
and fast settling performance make these amplifiers suitable
drivers for single-supply analog-to-digital converters.
The versatility of the AD8029/AD8030/AD8040 allows the user
to operate the amplifiers on a wide range of supplies while con-
suming less than 6.5 mW of power. These features extend the
operation time in applications ranging from battery-powered
systems with large bandwidth requirements to high speed
Rev. B
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.
1µs/DIV
03679-A-010
Figure 5. Rail-to-Rail Response
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Tel: 781.329.4700 ©2003–2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
AD8029/AD8030/AD8040
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Connection Diagrams ...................................................................... 1
General Description ......................................................................... 1
Specifications..................................................................................... 3
Specifications with ±5 V Supply ................................................. 3
Specifications with +5 V Supply ................................................. 4
Specifications with +3 V Supply ................................................. 5
Absolute Maximum Ratings............................................................ 7
Maximum Power Dissipation ..................................................... 7
ESD Caution .................................................................................. 7
Typical Performance Characteristics ............................................. 8
Data Sheet
Theory of Operation ...................................................................... 16
Input Stage ................................................................................... 16
Output Stage................................................................................ 16
Applications..................................................................................... 17
Wideband Operation ................................................................. 17
Output Loading Sensitivity ....................................................... 17
Disable Pin .................................................................................. 18
Circuit Considerations .............................................................. 19
Design Tools and Technical Support ....................................... 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 21
REVISION HISTORY
10/12—Rev. A to Rev. B
Added Automotive Model, AD8040W ............................ Universal
Changes to Features Section............................................................ 1
Changes to General Description Section ...................................... 1
Changes to Specifications Section, Table 1, Added Automotive
Specifications..................................................................................... 3
Moved ESD Caution to Absolute Maximum Ratings Section .... 7
Changes to Figure 17 ........................................................................ 9
Updated Outline Dimensions ....................................................... 20
Changes to Ordering Guide .......................................................... 21
11/03—Rev. 0 to Rev. A
Added AD8040 part ....................................................... Universal
Change to Figure 5 ....................................................................... 1
Changes to Specifications ............................................................ 3
Changes to Figures 10–12 ............................................................ 7
Change to Figure 14 ..................................................................... 8
Changes to Figures 20 and 21 ..................................................... 9
Inserted new Figure 36............................................................... 11
Change to Figure 40 ................................................................... 12
Inserted new Figure 41............................................................... 12
Added Output Loading Sensitivity section ............................. 16
Changes to Table 5 ...................................................................... 17
Changes to Power Supply Bypassing section .......................... 18
Changes to Ordering Guide ...................................................... 20
Rev. B | Page 2 of 24
Data Sheet
SPECIFICATIONS
SPECIFICATIONS WITH ±5 V SUPPLY
AD8029/AD8030/AD8040
Table 1. V
S
= ±5 V @ T
A
= 25°C, G = +1, R
L
= 1 kΩ to ground, unless otherwise noted. All specifications are per amplifier.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Conditions
G = +1, V
O
= 0.1 V p-p
AD8040W only: T
MIN
to T
MAX
G = +1, V
O
= 2 V p-p
AD8040W only: T
MIN
to T
MAX
G = +2, V
O
= 0.1 V p-p
G = +1, V
O
= 2 V Step
G = –1, V
O
= 2 V Step
G = +2, V
O
= 2 V Step
f
C
= 1 MHz, V
O
= 2 V p-p
f
C
= 5 MHz, V
O
= 2 V p-p
f = 100 kHz
f = 100 kHz
f = 5 MHz, V
IN
= 2 V p-p
PNP Active, V
CM
= 0 V
AD8040W only: T
MIN
to T
MAX
NPN Active, V
CM
= 4.5 V
AD8040W only: T
MIN
to T
MAX
Min
80
80
14
9
Typ
125
19
6
62
63
80
–74
–56
16.5
1.1
Max
Unit
MHz
MHz
MHz
MHz
MHz
V/μs
V/μs
ns
dBc
dBc
nV/√Hz
pA/√Hz
dB
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Crosstalk (AD8030/AD8040)
DC PERFORMANCE
Input Offset Voltage
–79
1.6
2
30
0.7
1
–1.7
2
±0.1
5
9.5
6
9.5
1.3
1.3
–2.8
–2.8
±0.9
±0.9
mV
mV
mV
mV
μV/°C
μA
μA
μA
μA
μA
μA
μA
μA
dB
dB
MΩ
pF
V
dB
dB
V
μA
V
μA
ns
ns
Input Offset Voltage Drift
Input Bias Current
1
T
MIN
to T
MAX
NPN Active, V
CM
= 4.5 V
T
MIN
to T
MAX
AD8040W only: T
MIN
to T
MAX
PNP Active, V
CM
= 0 V
T
MIN
to T
MAX
AD8040W only: T
MIN
to T
MAX
AD8040W only: T
MIN
to T
MAX
V
o
= ±4.0 V
AD8040W only: T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
DISABLE PIN (AD8029)
DISABLE Low Voltage
DISABLE Low Current
DISABLE High Voltage
DISABLE High Current
Turn-Off Time
Turn-On Time
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time
(Rising/Falling Edge)
Output Voltage Swing
50% of DISABLE to <10% of Final V
O
,
V
IN
= –1 V, G = –1
50% of DISABLE to <10% of Final V
O
,
V
IN
= –1 V, G = –1
65
62
74
V
CM
= –4.5 V to +3 V, R
L
= 10 kΩ
AD8040W only: T
MIN
to T
MAX
80
80
6
2
–5.2 to +5.2
90
–V
S
+ 0.8
–6.5
–V
S
+ 1.2
0.2
150
85
V
IN
= +6 V to –6 V, G = –1
R
L
= 1 kΩ
AD8040W only: T
MIN
to T
MAX
R
L
= 10 kΩ
AD8040W only: T
MIN
to T
MAX
Rev. B | Page 3 of 24
55/45
–V
S
+ 0.22
–V
S
+ 0.22
–V
S
+ 0.05
–V
S
+ 0.05
+V
S
– 0.22
+V
S
– 0.22
+V
S
– 0.05
+V
S
– 0.05
ns
V
V
V
V
AD8029/AD8030/AD8040
Parameter
Short-Circuit Current
Off Isolation (AD8029)
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
Quiescent Current (Disabled)
Power Supply Rejection Ratio
1
Data Sheet
Conditions
Sinking and Sourcing
V
IN
= 0.1 V p-p, f = 1 MHz, DISABLE = Low
30% Overshoot
2.7
1.4
AD8040W only: T
MIN
to T
MAX
DISABLE = Low
, AD8029 only
V
s
± 1 V
AD8040W only: T
MIN
to T
MAX
73
72
150
80
Min
Typ
170/160
–55
20
Max
Unit
mA
dB
pF
12
1.5
1.85
200
V
mA
mA
µA
dB
dB
Plus, +, (or no sign) indicates current into pin; minus (–) indicates current out of pin.
SPECIFICATIONS WITH +5 V SUPPLY
Table 2. V
S
= 5 V @ T
A
= 25°C, G = +1, R
L
= 1 kΩ to midsupply, unless otherwise noted. All specifications are per amplifier.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Conditions
G = +1, V
O
= 0.1 V p-p
AD8040W only: T
MIN
to T
MAX
Min
80
80
13
8
Typ
120
18
6
55
60
82
–73
–55
16.5
1.1
–79
1.4
1.8
25
0.8
1
–1.8
2
±0.1
Max
Unit
MHz
MHz
MHz
MHz
MHz
V/µs
V/µs
ns
dBc
dBc
nV/√Hz
pA/√Hz
dB
G = +1, V
O
= 2 V p-p
AD8040W only: T
MIN
to T
MAX
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Crosstalk (AD8030/AD8040)
DC PERFORMANCE
Input Offset Voltage
G = +2, V
O
= 0.1 V p-p
G = +1, V
O
= 2 V Step
G = –1, V
O
= 2 V Step
G = +2, V
O
= 2 V Step
f
C
= 1 MHz, V
O
= 2 V p-p
f
C
= 5 MHz, V
O
= 2 V p-p
f = 100 kHz
f = 100 kHz
f = 5 MHz, V
IN
= 2 V p-p
PNP Active, V
CM
= 2.5 V
AD8040W only: T
MIN
to T
MAX
NPN Active, V
CM
= 4.5 V
AD8040W only: T
MIN
to T
MAX
5
8.5
6
8.5
1.2
–2.8
±0.9
±0.9
Input Offset Voltage Drift
Input Bias Current
1
T
MIN
to T
MAX
NPN Active, V
CM
= 4.5 V
T
MIN
to T
MAX
PNP Active, V
CM
= 2.5 V
T
MIN
to T
MAX
AD8040W only: T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
DISABLE PIN (AD8029)
DISABLE Low Voltage
DISABLE Low Current
DISABLE High Voltage
Rev. B | Page 4 of 24
V
o
= 1 V to 4 V
AD8040W only: T
MIN
to T
MAX
65
62
74
mV
mV
mV
mV
µV/°C
µA
µA
µA
µA
µA
µA
dB
dB
MΩ
pF
V
dB
dB
V
µA
V
V
CM
= 0.25 V to 2 V, R
L
= 10 kΩ
AD8040W only: T
MIN
to T
MAX
80
80
6
2
–0.2 to +5.2
90
–V
S
+ 0.8
–6.5
–V
S
+ 1.2
Data Sheet
Parameter
DISABLE High Current
Turn-Off Time
Turn-On Time
OUTPUT CHARACTERISTICS
Overdrive Recovery Time
(Rising/Falling Edge)
Output Voltage Swing
Conditions
50% of DISABLE to <10% of Final V
O
,
V
IN
= –1 V, G = –1
50% of DISABLE to <10% of Final V
O
,
V
IN
= –1 V, G = –1
Min
AD8029/AD8030/AD8040
Typ
0.2
155
90
Max
Unit
µA
ns
ns
V
IN
= –1 V to +6 V, G = –1
R
L
= 1 kΩ
AD8040W only: T
MIN
to T
MAX
45/50
–V
S
+ 0.17
–V
S
+ 0.17
–V
S
+ 0.04
–V
S
+ 0.04
95/60
–55
15
2.7
1.3
12
1.5
1.75
200
+V
S
– 0.17
+V
S
– 0.17
+V
S
– 0.04
+V
S
– 0.04
R
L
= 10 kΩ
AD8040W only: T
MIN
to T
MAX
Short-Circuit Current
Off Isolation (AD8029)
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current/Amplifier
Quiescent Current (Disabled)
Power Supply Rejection Ratio
1
Sinking and Sourcing
V
in
= 0.1 V p-p, f = 1 MHz, DISABLE = Low
30% Overshoot
ns
V
V
V
V
mA
dB
pF
V
mA
mA
µA
dB
dB
AD8040W only: T
MIN
to T
MAX
DISABLE = Low, AD8029 only
V
S
± 1 V
AD8040W only: T
MIN
to T
MAX
73
72
140
80
Plus, +, (or no sign) indicates current into pin; minus (–) indicates current out of pin.
SPECIFICATIONS WITH +3 V SUPPLY
Table 3. V
S
= +3 V @ T
A
= 25°C, G = +1, R
L
= 1 kΩ to midsupply, unless otherwise noted. All specifications are per amplifier.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Conditions
G = +1, V
O
= 0.1 V p-p
AD8040W only: T
MIN
to T
MAX
Min
80
80
13
8
Typ
112
18
6
55
57
110
–72
–60
16.5
1.1
–80
1.1
1.6
24
0.7
1
–1.5
1.6
±0.1
Max
Unit
MHz
MHz
MHz
MHz
MHz
V/µs
V/µs
ns
dBc
dBc
nV/√Hz
pA/√Hz
dB
G = +1, V
O
= 2 V p-p
AD8040W only: T
MIN
to T
MAX
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Spurious Free Dynamic Range (SFDR)
Input Voltage Noise
Input Current Noise
Crosstalk (AD8030/AD8040)
DC PERFORMANCE
Input Offset Voltage
G = +2, V
O
= 0.1 V p-p
G = +1, V
O
= 2 V Step
G = –1, V
O
= 2 V Step
G = +2, V
O
= 2 V Step
f
C
= 1 MHz, V
O
= 2 V p-p
f
C
= 5 MHz, V
O
= 2 V p-p
f = 100 kHz
f = 100 kHz
f = 5 MHz, V
IN
= 2 V p-p
PNP Active, V
CM
= 1.5 V
AD8040W only: T
MIN
to T
MAX
NPN Active, V
CM
= 2.5 V
AD8040W only: T
MIN
to T
MAX
5
8
6
8
1.2
–2.5
±0.9
±0.9
Input Offset Voltage Drift
Input Bias Current
1
Input Bias Current
1
Input Offset Current
T
MIN
to T
MAX
NPN Active, V
CM
= 2.5 V
T
MIN
to T
MAX
PNP Active, V
CM
= 1.5 V
T
MIN
to T
MAX
AD8040W only: T
MIN
to T
MAX
Rev. B | Page 5 of 24
mV
mV
mV
mV
µV/°C
µA
µA
µA
µA
µA
µA
微控制器 MCU
