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1.8 nV/√Hz, 36 V Precision Amplifiers
ADA4004-1/ADA4004-2/ADA4004-4
FEATURES
Very low voltage noise: 1.8 nV/√Hz
Low input bias current: 90 nA maximum
Offset voltage: 125 μV maximum
High gain: 120 dB
Wide bandwidth: 12 MHz
±5
V to
±15
V operation
PIN CONFIGURATIONS
OUT
1
ADA4004-1
V–
2
+IN
3
TOP VIEW
(Not to Scale)
5
V+
4
–IN
Figure 1. 5-Lead SOT
(RJ-5)
NC
1
–IN
2
+IN
3
8
APPLICATIONS
Precision instrumentation
Filter blocks
Microphone preamplifiers
Industrial control
Thermocouples and RTDs
Reference buffers
NC
V+
OUT
05577-002
ADA4004-1
7
6
5
TOP VIEW
V–
4
(Not to Scale)
NC
NC = NO CONNECT
Figure 2. 8-Lead SOIC
(R-8)
OUT A
1
–IN A
2
+IN A
3
V–
4
8
GENERAL DESCRIPTION
The ADA4004-1/ADA4004-2/ADA4004-4 are 1.8 nV/√Hz
precision amplifiers featuring 40 μV offset, 0.7 μV/°C drift, 12
MHz bandwidth, and low 1.7 mA per amplifier supply current.
The ADA4004-1/ADA4004-2/ADA4004-4 are designed on the
high performance
iPolar™
process, enabling improvements such
as reduced noise and power consumption, increased speed and
stability, and smaller footprint size. Novel design techniques enable
the ADA4004-1/ADA4004-2/ADA4004-4 to achieve 1.8 nV/√Hz
voltage noise density and a low 6 Hz 1/f noise corner frequency
while consuming just 1.7 mA per amplifier. The small package
saves board space, reduces cost, and improves layout flexibility.
Applications for these amplifiers include high precision controls,
PLL filters, high performance precision filters, medical and
analytical instrumentation, precision power supply controls,
ATE, and data acquisition systems. Operation is fully specified
from ±5 V to ±15 V from −40°C to +125°C.
The ADA4004-1, ADA4004-2, and ADA4004-4 are members
of a growing series of low noise op amps offered by Analog
Devices, Inc. (see Table 1).
Table 1. Voltage Noise
Pkg.
Single
Dual
Quad
0.9 nV
AD797
1.1 nV
AD8597
AD8599
1.8 nV
ADA4004-1
ADA4004-2
ADA4004-4
2.8 nV
AD8675
AD8676
3.8 nV
AD8671
AD8672
AD8674
V+
OUT B
–IN B
05577-003
05577-091
ADA4004-2
TOP VIEW
(Not to Scale)
7
6
5
+IN B
NC = NO CONNECT
Figure 3. 8-Lead MSOP (RM-8) and 8-Lead SOIC (R-8)
OUT A
1
–IN A
2
14
13
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
+IN A
3
V+
4
+IN B
5
ADA4004-4
TOP VIEW
(Not to Scale)
12
11
10
9
8
–IN B
6
OUT B
7
Figure 4. 14-Lead SOIC
(R-14)
OUT A
OUT D
NC
NC
16
15
14
13
–IN A
1
+IN A
2
V+
3
+IN B
4
12
–IN D
ADA4004-4
TOP VIEW
(Not to Scale)
11
+IN D
10
V–
9
+IN C
5
6
7
8
OUT B
OUT C
–IN B
NOTES
1. NC = NO CONNECT.
2.
IT IS RECOMMENDED THAT THE EXPOSED PAD
BE CONNECTED TO V–.
–IN C
05577-001
Figure 5. 16-Lead LFCSP
(CP-16-4)
Rev. G
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.
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 ©2006–2011 Analog Devices, Inc. All rights reserved.
05577-005
ADA4004-1/ADA4004-2/ADA4004-4
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings ............................................................5
Thermal Resistance .......................................................................5
ESD Caution...................................................................................5
Typical Performance Characteristics ..............................................6
Outline Dimensions ....................................................................... 12
Ordering Guide .......................................................................... 14
REVISION HISTORY
4/11—Rev. F to Rev. G
Changes to Figure 1.......................................................................... 1
Updated Outline Dimensions ....................................................... 12
6/10—Rev. E to Rev. F
Added Differential Input Current to Table 4 ................................ 5
Changes to Figure 14 and Figure 17............................................... 7
10/09—Rev. D to Rev. E
Changes to Product Title, General Description Section, and
Figure 5 .............................................................................................. 1
Updated Outline Dimensions (RM-8)......................................... 13
Changes to Ordering Guide .......................................................... 14
6/09—Rev. C to Rev. D
Changes to Figure 5.......................................................................... 1
10/08—Rev. B to Rev. C
Added ADA4004-1 and ADA4004-2 ...............................Universal
Added 5-Lead SOT, 8-Lead SOIC, and 8-Lead MSOP .......Universal
Changes to Features Section ....................................................................1
Added Figure 1 to Figure 3; Renumbered Sequentially......................1
Changes to General Description Section ..............................................1
Added Table 1; Renumbered Sequentially............................................1
Change to Output Voltage Low Parameter, Table 2 ............................3
Changes to Supply Current per Amplifier Parameter, Table 2..........3
Added Phase Margin Parameter, Table 2 ..............................................3
Change to Output Voltage Low Parameter, Table 3 ............................3
Changes to Supply Current per Amplifier Parameter, Table 3..........4
Added Phase Margin Parameter, Table 3 ..............................................4
Changes to Table 4.....................................................................................5
Changes to Thermal Resistance Section................................................5
Changes to Table 5.....................................................................................5
Update Outline Dimensions..................................................................12
Changes to Ordering Guide...................................................................13
11/07—Rev. A to Rev. B
Changed V
S
to V
SY
..............................................................Universal
Changes to General Description .....................................................1
Changes to Supply Current per Amplifier .....................................3
Changes to Open-Loop Gain...........................................................4
Changes to Supply Current per Amplifier .....................................4
Changes to Figure 10, Figure 11, Figure 13, and Figure 14..........7
Changes to Figure 26.........................................................................9
Updated Outline Dimensions....................................................... 12
Changes to Ordering Guide .......................................................... 12
7/06—Rev. 0 to Rev. A
Changes to Table 4.............................................................................5
Updated Outline Dimensions....................................................... 12
Changes to Ordering Guide .......................................................... 12
1/06—Revision 0: Initial Version
Rev. G | Page 2 of 16
ADA4004-1/ADA4004-2/ADA4004-4
SPECIFICATIONS
V
SY
=
±5
V, V
CM
= 0 V, T
A
= 25°C, unless otherwise specified.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Open-Loop Gain
Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Limit
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Current Noise Density
Symbol
V
OS
−40°C
≤
T
A
≤
+125°C
I
B
−40°C
≤
T
A
≤
+125°C
I
OS
−40°C
≤
T
A
≤
+125°C
IVR
CMRR
A
VO
∆V
OS
/∆T
V
OH
V
OL
I
SC
I
O
PSRR
I
SY
−40°C
≤
T
A
≤
+125°C
SR
GBP
Φ
M
e
n p-p
e
n
i
n
i
n
R
L
= 2 kΩ to ground
2.7
12
48
0.1
1.8
3.5
1.2
−40°C
≤
T
A
≤
+125°C
V
OUT
= ±3.6 V
V
SY
=
±5
V to
±15
V
−40°C
≤
T
A
≤
+125°C
110
110
V
CM
= −3.0 V to +3.0 V
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ, V
OUT
= −2.5 V to +2.5 V
−40°C
≤
T
A
≤
+125°C
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ to ground
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ to ground
−40°C
≤
T
A
≤
+125°C
−3.5
105
95
250
170
111
110
400
0.7
3.7
3.4
3.9
3.6
−3.6
−3.6
25
±10
118
2.0
2.2
1
40
40
Conditions
Min
Typ
40
Max
140
300
85
165
85
100
+3.5
Unit
μV
μV
nA
nA
nA
nA
V
dB
dB
V/mV
V/mV
μV/°C
V
V
V
V
mA
mA
mA
dB
dB
mA
mA
V/μs
MHz
Degrees
μV p-p
nV/√Hz
pA/√Hz
pA/√Hz
−3.55
−3.4
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 10 Hz
f = 200 Hz
Rev. G | Page 3 of 16
ADA4004-1/ADA4004-2/ADA4004-4
V
SY
=
±15
V, V
CM
= 0 V, T
A
= 25°C, unless otherwise specified.
Table 3.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Open-Loop Gain
Offset Voltage Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Limit
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Current Noise Density
Symbol
V
OS
−40°C
≤
T
A
≤
+125°C
I
B
−40°C
≤
T
A
≤
+125°C
I
OS
−40°C
≤
T
A
≤
+125°C
IVR
CMRR
A
VO
∆V
OS
/∆T
V
OH
V
OL
I
SC
I
O
PSRR
I
SY
−40°C
≤
T
A
≤
+125°C
SR
GBP
Φ
M
e
n p-p
e
n
i
n
i
n
R
L
= 2 kΩ to ground
2.7
12
48
0.15
1.8
3.5
1.2
V
CM
= −12.5 V to +12.5 V
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ, V
OUT
= −12.0 V to +12.0 V
−40°C
≤
T
A
≤
+125°C
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ to ground
−40°C
≤
T
A
≤
+125°C
R
L
= 2 kΩ to ground
−40°C
≤
T
A
≤
+125°C
V
OUT
= ±13.6 V
V
SY
=
±5
V to
±15
V
−40°C
≤
T
A
≤
+125°C
110
110
−12.5
110
100
500
250
113
104
1200
500
0.7
13.6
13.3
−13.3
−13.25
25
±10
118
2.2
2.4
40
Conditions
Min
Typ
40
Max
125
270
90
165
60
100
+12.5
Unit
μV
μV
nA
nA
nA
nA
V
dB
dB
V/mV
V/mV
μV/°C
V
V
V
V
mA
mA
dB
dB
mA
mA
V/μs
MHz
Degrees
μV p-p
nV/√Hz
pA/√Hz
pA/√Hz
1
13.4
13.1
−13.2
−13.15
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 10 Hz
f = 200 Hz
Rev. G | Page 4 of 16
