ANALOG DEVICES ADA4004-4 Service Manual
www.BDTIC.com/ADI
1.8 nV/√Hz, 36 V Precision Quad Amplifier
FEATURES
Very low voltage noise: 1.8 nV/√Hz
Low input bias current: 100 nA maximum
Offset voltage: 100 μV maximum
High gain: 120 dB
Wide bandwidth: 12 MHz
±5 V
to ±15 V operation
APPLICATIONS
Precision instrumentation
Filter blocks
Microphone preamplifier
Industrial control
Thermocouples and RTDs
Reference buffers
GENERAL DESCRIPTION
The ADA4004-4 is a 1.8 nV/√Hz precision quad amplifier in a
16-lead, 4 mm × 4 mm LFCSP package featuring 40 μV offset,
0.7 μV/°C drift, 12 MHz bandwidth, and low 1.7 mA per
amplifier supply current.
The ADA4004-4 is designed on the high performance i
process, enabling improvements such as reduced noise and
power consumption, increased speed and stability, and smaller
footprint size. Novel design techniques enable the 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,
LL filters, high performance precision filters, medical and
P
analytical instrumentation, precision power supply controls,
ATE, and data acquisition systems.
The high performance ADA4004-4 is offered in the very small
16-lead
, 4 mm × 4 mm LFCSP and the 14-lead, narrow SOIC,
RoHS compliant, surface-mount packages. Operation is fully
specified from ±5 V to ±15 V from −40°C to +125°C.
Polar™
ADA4004-4
PIN CONFIGURATIONS
NC16OUT A15OUT D14NC
13
1
–IN A
ADA4004-4
2
+IN A
V
+IN B
CC
TOP VIEW
3
(Not to Scale)
4
5
–IN B
NC = NO CONNECT
7
OUT B6OUT C
Figure 1. 16-Lead LFCSP
(CP
-16-4 Suffix)
1
OUT A OUT D
2
–IN A –IN D
3
+IN A +IN D
V+ V–
+IN B +IN C
–IN B –IN C
OUT B OUT C
4
5
6
7
ADA4004-4
TOP VIEW
(Not to Scale)
Figure 2. 14-Lead SOIC
(R
-14 Suffix)
12
–IN D
11
+IN D
10
VEE
9
+IN C
8
–IN C
05577-090
14
13
12
11
10
9
8
05577-091
Rev. B
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.
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 ©2006–2007 Analog Devices, Inc. All rights reserved.
ADA4004-4
www.BDTIC.com/ADI
TABLE OF CONTENTS
Features.............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Pin Configurations........................................................................... 1
Revision History ...............................................................................2
Specifications..................................................................................... 3
REVISION HISTORY
11/07—Rev. A to Rev. B
Changed V
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
to VSY..............................................................Universal
S
Absolute Maximum Ratings ............................................................5
Thermal Resistance.......................................................................5
ESD Caution...................................................................................5
Typical Performance Characteristics..............................................6
Outline Dimensions....................................................................... 12
Ordering Guide .......................................................................... 12
Rev. B | Page 2 of 12
ADA4004-4
www.BDTIC.com/ADI
SPECIFICATIONS
VSY = ±5.0 V, VCM = 0 V, TA = 25°C, unless otherwise specified.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS 40 140 μV
−40°C ≤ T
≤ +125°C
A
Input Bias Current IB 40 85 nA
−40°C ≤ T
≤ +125°C
A
Input Offset Current IOS 40 85 nA
−40°C ≤ T
≤ +125°C
A
Input Voltage Range −3.5 +3.5 V
Common-Mode Rejection Ratio CMRR VCM = −3.0 V to +3.0 V 105 111 dB
Open-Loop Gain AVO R
Offset Voltage Drift
/ΔT −40°C ≤ TA ≤ +125°C
ΔV
OS
−40°C ≤ T
= 2 kΩ, VO = −2.5 V to +2.5 V 250 400 V/mV
L
−40°C ≤ T
≤ +125°C
A
≤ +125°C
A
OUTPUT CHARACTERISTICS
Output Voltage High VOH R
Output Voltage Low VOL R
= 2 kΩ to ground 3.7 3.9 V
L
−40°C ≤ T
= 2 kΩ to ground −3.6 −3.55 V
L
−40°C ≤ T
≤ +125°C
A
≤ +125°C
A
Short-Circuit Limit ISC 25 mA
Output Current IO V
−40°C ≤ T
OUT
≤ +125°C
A
= ±3.6 V ±10 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR
= ±5.0 V to ±15.0 V
V
SY
−40°C ≤ T
≤ +125°C
A
Supply Current per Amplifier ISY 1.8 mA
−40°C ≤ T
≤ +125°C
A
DYNAMIC PERFORMANCE
Slew Rate SR RL = 2 kΩ to ground 2.7 V/μs
Gain Bandwidth Product GBP 12 MHz
NOISE PERFORMANCE
Voltage Noise e
0.1 Hz to 10 Hz 0.1 μV p-p
n p-p
Voltage Noise Density en f = 1 kHz 1.8
Current Noise Density in f = 10 Hz 3.5
Current Noise Density in f = 200 Hz 1.2
300 μV
165 nA
100 nA
95 110 dB
170 V/mV
0.7 1 μV/°C
3.4 3.6 V
−3.6 −3.5 V
mA
110 118 dB
110 dB
2.1 mA
nV/√Hz
pA/√Hz
pA/√Hz
Rev. B | Page 3 of 12
ADA4004-4
www.BDTIC.com/ADI
VSY = ±15 V, VCM = 0 V, TA = 25°C, unless otherwise specified.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS 40 125 μV
−40°C ≤ T
≤ +125°C
A
Input Bias Current IB 40 90 nA
−40°C ≤ T
≤ +125°C
A
Input Offset Current IOS 60 nA
−40°C ≤ T
≤ +125°C
A
Input Voltage Range −12.5 +12.5 V
Common-Mode Rejection Ratio CMRR VCM = −12.5 V to +12.5 V 110 113 dB
Open-Loop Gain AVO R
Offset Voltage Drift
/ΔT −40°C ≤ TA ≤ +125°C
ΔV
OS
−40°C ≤ T
= 2 kΩ, VO = −12.0 V to +12.0 V 500 1200 V/mV
L
−40°C ≤ T
≤ +125°C
A
≤ +125°C
A
OUTPUT CHARACTERISTICS
Output Voltage High VOH R
Output Voltage Low VOL R
= 2 kΩ to ground 13.4 13.6 V
L
−40°C ≤ T
= 2 kΩ to ground −13.3 −13.2 V
L
−40°C ≤ T
≤ +125°C
A
≤ +125°C
A
Short-Circuit Limit ISC 25 mA
Output Current IO V
= ±13.6 V ±10 mA
OUT
POWER SUPPLY
Power Supply Rejection Ratio PSRR
= ±5.0 V to ±15.0 V
V
SY
−40°C ≤ T
≤ +125°C
A
Supply Current per Amplifier ISY 2.0 mA
−40°C ≤ T
≤ +125°C
A
DYNAMIC PERFORMANCE
Slew Rate SR RL = 2 kΩ to ground 2.7 V/μs
Gain Bandwidth Product GBP 12 MHz
NOISE PERFORMANCE
Voltage Noise e
0.1 Hz to 10 Hz 0.15 μV p-p
n p-p
Voltage Noise Density en f = 1 kHz 1.8
Current Noise Density in f = 10 Hz 3.5
Current Noise Density in f = 200 Hz 1.2
270 μV
165 nA
100 nA
100 104 dB
250 500 V/mV
0.7 1 μV
13.1 13.3 V
−13.25 −13.18 V
110 118 dB
110 dB
2.3 mA
nV/√Hz
pA/√Hz
pA/√Hz
Rev. B | Page 4 of 12
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