AD8605ART-REEL7
Precision Low noise CMOS Rail-to-Rail Input/Output Operational Amplifiers

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Datasheet

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Page: 20
PDF: AD8605ART-REEL7.pdf
  • Description:
    Precision Low noise CMOS Rail-to-Rail Input/Output Operational Amplifiers
  • MFG:
    AD [Analog Devices]
 

Abstract


Precision Low Noise CMOS Rail-to-Rail
Input/Output Operational Amplifiers

AD8605/AD8606/AD8608


Rev. D
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: 781.326.8703 ? 2004 Analog Devices, Inc. All rights reserved.
FEATURES
Low offset voltage: 65 ?V maximum
Low input bias currents: 1 pA maximum
Low noise: 8 nV/√
Hz
Wide bandwidth: 10 MHz
High open-loop gain: 120 dB
Unity gain stable
Single-supply operation: 2.7 V to 5.5 V
MicroCSP?
GENERAL DESCRIPTION
The AD8605, AD8606, and AD8608
1
are single, dual, and quad
rail-to-rail input and output, single-supply amplifiers. They
feature very low offset voltage, low input voltage and current
noise, and wide signal bandwidth. They use Analog Devices’
patented DigiTrim? trimming technique, which achieves
superior precision without laser trimming.
The combination of low offsets, low noise, very low input bias
currents, and high speed makes these amplifiers useful in a
wide variety of applications. Filters, integrators, photodiode
amplifiers, and high impedance sensors all benefit from the
combination of performance features. Audio and other ac
applications benefit from the wide bandwidth and low
distortion. Applications for these amplifiers include optical
control loops, portable and loop-powered instrumentation,
and audio amplification for portable devices.
The AD8605, AD8606, and AD8608 are specified over the
extended industrial temperature range (?40°C to +125°C). The
AD8605 single is available in the 5-lead SOT-23 and 5-bump
MicroCSP packages. The 5-bump MicroCSP offers the smallest
available footprint for any surface-mount operational amplifier.
The AD8606 dual is available in an 8-lead MSOP package and a
narrow SOIC surface-mount package. The AD8608 quad is
available in a 14-lead TSSOP and a narrow 14-lead SOIC
package. MicroCSP, SOT, MSOP, and TSSOP versions are
available in tape and reel only.

1
Protected by U.S. Patent No. 5,969,657; other patents pending.
APPLICATIONS
Photodiode amplification
Battery-powered instrumentation
Multipole filters
Sensors
Barcode scanners
Audio


FUNCTIONAL BLOCK DIAGRAMS
1
2
3
5
4 –IN+IN
V+OUT
AD8605V–
02731-D-001
1
2
3
4
8
7
6
5
AD8608
–IN A
V–
+IN A
OUT B
–IN B
V+
+IN B
OUT A
02731-D-005
Figure 1. 5-Lead SOT-23 (RT Suffix) Figure 2. 8-Lead SOIC (R Suffix)
AD8605 ONLY
OUT V+
V–
+IN –IN
1
3
5
4
2
TOP VIEW
(BUMP SIDE DOWN)
02731-D-006

–IN A
+IN A
V+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
OUT A
AD8608
1
2
3
4
5
6
7
14
13
12
11
10
9
8
02731-D-004
Figure 3. 5-Bump MicroCSP
(CB Suffix)
Figure 4. 14-Lead SOIC (R Suffix)
–IN A
+IN A
V–
OUT B
–IN B
+IN B
V+18
AD8606
OUT A
45
02731-D-003


OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
–IN D
+IN D
V–
OUT D
–IN C
OUT C
+IN C
14
8
1
7
AD8608
02731-D-002

Figure 5. 8-Lead MSOP (RM Suffix) Figure 6. 14-Lead TSSOP (RU Suffix)

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