IC OPAMP GP R-R 10MHZ PREC 8SOIC

AD8675ARZ

Manufacturer Part NumberAD8675ARZ
DescriptionIC OPAMP GP R-R 10MHZ PREC 8SOIC
ManufacturerAnalog Devices Inc
AD8675ARZ datasheet
Product Change Notification
 


Specifications of AD8675ARZ

Slew Rate2.5 V/µsDesign ResourcesHow to Achieve High Precision Voltage Level Setting Using AD5541A/42A (CN0169)
Amplifier TypeGeneral PurposeNumber Of Circuits1
Output TypeRail-to-RailGain Bandwidth Product10MHz
Current - Input Bias500pAVoltage - Input Offset10µV
Current - Supply2.5mACurrent - Output / Channel35mA
Voltage - Supply, Single/dual (±)10 V ~ 36 V, ±5 V ~ 18 VOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
Op Amp TypePrecisionNo. Of Amplifiers1
Bandwidth10MHzSupply Voltage Range± 5V To ± 18V
Amplifier Case StyleSOICNo. Of Pins8
Lead Free Status / RoHS StatusLead free / RoHS Compliant-3db Bandwidth-
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FEATURES
Very low voltage noise: 2.8 nV/√Hz
Rail-to-rail output swing
Low input bias current: 2 nA maximum
Very low offset voltage: 75 μV maximum
Low input offset drift: 0.6 μV/°C maximum
Very high gain: 120 dB
Wide bandwidth: 10 MHz typical
±5 V to ±18 V operation
APPLICATIONS
Precision instrumentation
PLL filters
Laser diode control loops
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
GENERAL DESCRIPTION
The AD8675 precision operational amplifier has ultralow offset,
drift, and voltage noise combined with very low input bias currents
over the full operating temperature range. The AD8675 is a
precision, wide bandwidth op amp featuring rail-to-rail output
swings and very low noise. Operation is fully specified from
±5 V to ±15 V.
The AD8675 features a rail-to-rail output like that of the OP184,
but with wide bandwidth and even lower voltage noise, combined
with the precision and low power consumption like that of the
industry-standard OP07 amplifier. Unlike other low noise, rail-
to-rail op amps, the AD8675 has very low input bias current
and low input current noise.
With typical offset voltage of only 10 μV, offset drift of 0.2 μV/°C,
and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8675 is
perfectly suited for applications where large error sources cannot
be tolerated. For applications with even lower offset tolerances,
the proprietary nulling capability allows a combination of both
device and system offset errors up to 3.5 mV (referred to the
input) to be compensated externally. Unlike previous circuits,
the AD8675 accommodates this adjustment without adversely
affecting the offset drift, CMRR, and PSRR of the amplifier.
Precision instrumentation, PLL, and other precision filter circuits,
position and pressure sensors, medical instrumentation, and
strain gage amplifiers benefit greatly from the very low noise,
low input bias current, and wide bandwidth. Many systems can
Rev. C
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.
36 V Precision, 2.8 nV/√Hz
Rail-to-Rail Output Op Amp
PIN CONFIGURATIONS
NULL
1
8
AD8675
–IN
2
7
+IN
3
TOP VIEW
6
(Not to Scale)
V–
4
5
NC = NO CONNECT
Figure 1. 8-Lead SOIC_N (R-8)
NULL
1
AD8675
–IN
2
TOP VIEW
+IN
3
(Not to Scale)
V–
4
NC = NO CONNECT
Figure 2. 8-Lead MSOP (RM-8)
take advantage of the low noise, dc precision, and rail-to-rail
output swing provided by the AD8675 to maximize SNR and
dynamic range.
The smaller packages and low power consumption afforded by
the AD8675 allow maximum channel density or minimum
board size for space-critical equipment.
The AD8675 is specified for the extended industrial temperature
range (−40°C to +125°C). The AD8675 amplifier is available in
the tiny 8-lead MSOP, and the popular 8-lead, narrow SOIC,
RoHS compliant packages. MSOP packaged devices are only
available in tape and reel format.
For the dual version of this ultraprecision, rail-to-rail op amp,
see the
AD8676
data sheet.
The AD8675 and AD8676 are members of a growing series of
low noise op amps offered by Analog Devices, Inc.
Table 1. Voltage Noise
Package
0.9 nV
1.1 nV
1.8 nV
Single
AD797
AD8597
ADA4004-1
Dual
AD8599
ADA4004-2
Quad
ADA4004-4
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
©2005–2010 Analog Devices, Inc. All rights reserved.
AD8675
NULL
V+
OUT
NC
NULL
8
V+
7
OUT
6
NC
5
2.8 nV
3.8 nV
AD8675
AD8671
AD8676
AD8672
AD8674
www.analog.com

AD8675ARZ Summary of contents

  • Page 1

    FEATURES Very low voltage noise: 2.8 nV/√Hz Rail-to-rail output swing Low input bias current maximum Very low offset voltage: 75 μV maximum Low input offset drift: 0.6 μV/°C maximum Very high gain: 120 dB Wide bandwidth: 10 MHz ...

  • Page 2

    AD8675 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Specifications ............................................................... 3 REVISION HISTORY 6/10—Rev Rev. C Changes to Figure 10 ...

  • Page 3

    SPECIFICATIONS ELECTRICAL SPECIFICATIONS V = ±5 +25°C, unless otherwise specified Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset ...

  • Page 4

    AD8675 V = ± +25°C, unless otherwise specified Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset Current Input ...

  • Page 5

    ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage Input Voltage Input Current Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range RM-8, R-8 Packages Operating Temperature Range Junction Temperature Range RM-8, R-8 Packages Lead Temperature Range (Soldering, 10 ...

  • Page 6

    AD8675 TYPICAL PERFORMANCE CHARACTERISTICS ±15 V and ± 25°C, unless otherwise specified 100 1k FREQUENCY (Hz) Figure 3. Voltage Noise Density vs. Frequency ...

  • Page 7

    V = ± ±15V –1 S –2 –3 –4 –5 –40 – TEMPERATURE (°C) Figure 9. Input Bias Current vs. Temperature 2.4 2.0 1.6 1.2 0.8 0.4 ...

  • Page 8

    AD8675 –5 –10 –15 TIME (10µs/DIV) Figure 15. Large-Signal Transient Response –1 –2 –3 –4 TIME (10µs/DIV) Figure 16. Large-Signal Transient Response ...

  • Page 9

    FREQUENCY (Hz) Figure 21. Power Supply Rejection Ratio vs. Frequency 148 147 146 145 144 143 142 141 140 –40 – TEMPERATURE (°C) ...

  • Page 10

    AD8675 0. 2kΩ rms 80kHz 0.001 0.0001 V = 15V S 0.00001 10 100 1k FREQUENCY (Hz) Figure 27. Distortion vs. Frequency 10k ...

  • Page 11

    TEST CIRCUIT 100kΩ – AD8675 INPUT OUTPUT TRIM RANGE IS OS TYPICALLY ±3.5mV V– Figure 28. Optional Offset Nulling Circuit Rev Page AD8675 ...

  • Page 12

    ... AD8675ARMZ-REEL −40°C to +125°C AD8675ARZ −40°C to +125°C AD8675ARZ-REEL −40°C to +125°C AD8675ARZ-REEL7 −40°C to +125° RoHS Compliant Part. ©2005–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...