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PDF ADA4075-2 Data sheet ( Hoja de datos )
| Número de pieza | ADA4075-2 | |
| Descripción | Ultralow Noise Amplifier at Lower Power | |
| Fabricantes | Analog Devices | |
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Data Sheet
Ultralow Noise Amplifier at Lower Power
ADA4075-2
FEATURES
Ultralow noise: 2.8 nV/√Hz at 1 kHz typical
Ultralow distortion: 0.0002% typical
Low supply current: 1.8 mA per amplifier typical
Offset voltage: 1 mV maximum
Bandwidth: 6.5 MHz typical
Slew rate: 12 V/μs typical
Dual-supply operation: ±4.5 V to ±18 V
Unity-gain stable
Extended industrial temperature range
8-lead SOIC and 2 mm × 2 mm LFCSP packages
APPLICATIONS
Precision instrumentation
Professional audio
Active filters
Low noise amplifier front end
Integrators
PIN CONFIGURATIONS
OUTA 1
8 V+
–INA 2 ADA4075-2 7 OUTB
+INA 3 TOP VIEW 6 –INB
(Not to Scale)
V– 4
5 +INB
Figure 1. 8-Lead SOIC
OUTA 1
–INA 2
+INA 3
V– 4
ADA4075-2
TOP VIEW
(Not to Scale)
8 V+
7 OUTB
6 –INB
5 +INB
Figure 2. 8-Lead, 2 mm × 2 mm LFCSP
GENERAL DESCRIPTION
The ADA4075-2 is a dual, high performance, low noise operational
amplifier combining excellent dc and ac characteristics on the
Analog Devices, Inc., iPolar® process. The iPolar process is an
advanced bipolar technology implementing vertical junction
isolation with lateral trench isolation. This allows for low noise
performance amplifiers in smaller die size at faster speed and
lower power. Its high slew rate, low distortion, and ultralow
noise make the ADA4075-2 ideal for high fidelity audio and
high performance instrumentation applications. It is also
especially useful for lower power demands, small enclosures,
and high density applications. The ADA4075-2 is specified for
the −40°C to +125°C temperature range and is available in a
standard SOIC package and a 2 mm × 2 mm LFCSP package.
Table 1. Low Noise Precision Op Amps
Supply 44 V
36 V
12 V to 16 V
Single OP27 AD8671
AD8665
AD8675
OP162
AD8597
ADA4004-1
AD797
Dual OP275 AD8672
AD8666
AD8676
OP262
AD8599
ADA4004-2
Quad
AD8674
AD8668
ADA4004-4 OP462
5V
AD8605
AD8655
AD8691
AD8606
AD8656
AD8692
AD8608
AD8694
Rev. C
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2008–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ADA4075-2
VSY = ±15 V, VCM = 0 V, TA = 25°C, LFCSP package, unless otherwise noted.
Table 3.
Parameter
Symbol Conditions
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
Input Resistance, Differential Mode
Input Resistance, Common Mode
Input Capacitance, Differential Mode
Input Capacitance, Common Mode
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Settling Time
Gain Bandwidth Product
Phase Margin
THD + NOISE
Total Harmonic Distortion and Noise
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
VOS
IB
IOS
CMRR
AVO
∆VOS/∆T
RINDM
RINCM
CINDM
CINCM
VOH
VOL
ISC
ZOUT
PSRR
ISY
SR
tS
GBP
ΦM
THD + N
en p-p
en
in
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
VCM = −12.5 V to +12.5 V
−40°C ≤ TA ≤ +125°C
RL = 2 kΩ, VO = −11 V to +11 V
−40°C ≤ TA ≤ +125°C
RL = 600 Ω, VO = −10 V to +10 V
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
RL = 2 kΩ to GND
−40°C ≤ TA ≤ +125°C
RL = 600 Ω to GND
−40°C ≤ TA ≤ +125°C
VSY = ±18 V, RL = 600 Ω to GND
−40°C ≤ TA ≤ +125°C
RL = 2 kΩ to GND
−40°C ≤ TA ≤ +125°C
RL = 600 Ω to GND
−40°C ≤ TA ≤ +125°C
VSY = ±18 V, RL = 600 Ω to GND
−40°C ≤ TA ≤ +125°C
f = 1 kHz, AV = 1
VSY = ±4.5 V to ±18 V
−40°C ≤ TA ≤ +125°C
VSY = ±4.5 V to ±18 V, IO = 0 mA
−40°C ≤ TA ≤ +125°C
RL = 2 kΩ, AV = 1
To 0.01%, VIN = 10 V step, RL = 1 kΩ
RL = 1 MΩ, CL = 35 pF, AV = 1
RL = 1 MΩ, CL = 35 pF, AV = 1
RL = 2 kΩ, AV = 1, VIN = 3 V rms, f = 1 kHz
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
Rev. C | Page 4 of 24
Data Sheet
Min Typ
Max Unit
0.3
30
5
−12.5
110
106
110
102
108
100
116
117
117
3
1.5
500
2.4
2.1
1
1.5
100
150
50
75
+12.5
mV
mV
nA
nA
nA
nA
V
dB
dB
dB
dB
dB
dB
µV/°C
MΩ
MΩ
pF
pF
12.8 13
V
12.5 V
12.4 12.8
V
12 V
15 15.8
V
14 V
−14 −13.6 V
−13 V
−13.6 −13 V
−12.5 V
−16.6 −16 V
−15 V
40 mA
0.1 Ω
100 104
95
1.8
dB
dB
2.25 mA
3.35 mA
12 V/µs
3 µs
6.5 MHz
60 Degrees
0.0002
%
60 nV p-p
2.8 nV/√Hz
1.2 pA/√Hz
5 Page 
ADA4075-2
140
120
100
80
60
40
20
0
100
VSY = ±15V
1k 10k 100k 1M
FREQUENCY (Hz)
Figure 27. CMRR vs. Frequency
10M
120
100
80
60
40
20
0
–20
10
VSY = ±15V
PSRR+
PSRR–
100 1k 10k 100k 1M
FREQUENCY (Hz)
Figure 28. PSRR vs. Frequency
10M 100M
40
VSY = ±15V
35
AV = +1
RL = 2kΩ
30
25
20
15
10
5
0
10 100 1000
CAPACITANCE (pF)
Figure 29. Small Signal Overshoot vs. Load Capacitance
Data Sheet
140
120
100
80
60
40
20
0
100
VSY = ±5V
1k 10k 100k 1M
FREQUENCY (Hz)
Figure 30. CMRR vs. Frequency
10M
120
100
80
60
40
20
0
–20
10
VSY = ±5V
PSRR+
PSRR–
100 1k 10k 100k 1M
FREQUENCY (Hz)
Figure 31. PSRR vs. Frequency
10M 100M
40
VSY = ±5V
35
AV = +1
RL = 2kΩ
30
25
20
15
10
5
0
10 100 1000
CAPACITANCE (pF)
Figure 32. Small Signal Overshoot vs. Load Capacitance
Rev. C | Page 10 of 24
11 Page | ||
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