Precision CMOS, Single-Supply, Rail-to-Rail,
Input/Output Wideband Operational Amplifiers
AD8601/AD8602/AD8604
APPLICATIONS
Current sensing
Barcode scanners
PA controls
Battery-powered instrumentation
Multipole filters
Sensors
ASIC input or output amplifiers
Audio
PIN CONFIGURATIONS
V– 2
5
V+
4
AD8601
–IN
TOP VIEW
(Not to Scale)
+IN 3
01525-001
OUT A 1
Figure 1. 5-Lead SOT-23 (RJ Suffix)
OUT A 1
8
AD8602
+IN A 3
TOP VIEW
(Not to Scale)
V– 4
V+
7
OUT B
6
–IN B
5
–IN A 2
+IN B
01525-002
Low offset voltage: 500 μV maximum
Single-supply operation: 2.7 V to 5.5 V
Low supply current: 750 μA/Amplifier
Wide bandwidth: 8 MHz
Slew rate: 5 V/μs
Low distortion
No phase reversal
Low input currents
Unity-gain stable
Qualified for automotive applications
Figure 2. 8-Lead MSOP (RM Suffix) and 8-Lead SOIC (R-Suffix)
OUT A 1
14
OUT D
–IN A 2
13
–IN D
AD8604
12
+IN D
TOP VIEW
(Not to Scale)
11
V–
+IN B 5
10
+IN C
–IN B 6
9
–IN C
OUT B 7
8
OUT C
+IN A 3
V+ 4
01525-003
FEATURES
Figure 3. 14-Lead TSSOP (RU Suffix) and 14-Lead SOIC (R Suffix)
GENERAL DESCRIPTION
The combination of low offsets, very low input bias currents,
and high speed make these amplifiers useful in a wide variety
of applications. Filters, integrators, diode amplifiers, shunt
current sensors, 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.
For the most cost-sensitive applications, the D grades offer this
ac performance with lower dc precision at a lower price point.
Applications for these amplifiers include audio amplification for
portable devices, portable phone headsets, bar code scanners,
portable instruments, cellular PA controls, and multipole filters.
OUT A
1
16 OUT D
–IN A
2
15 –IN D
+IN A
3
AD8604
V+
4
TOP VIEW
(Not to Scale)
+IN B
5
12 +IN C
–IN B
6
11 –IN C
OUT B
7
10 OUT C
NC
8
14 +IN D
13 V–
9
NC = NO CONNECT
NC
01525-004
The AD8601, AD8602, and AD8604 are single, dual, and quad
rail-to-rail, input and output, single-supply amplifiers featuring
very low offset voltage and wide signal bandwidth. These amplifiers
use a new, patented trimming technique that achieves superior
performance without laser trimming. All are fully specified to
operate on a 3 V to 5 V single supply.
Figure 4. 16-Lead Shrink Small Outline QSOP (RQ Suffix)
The AD8601, AD8602, and AD8604 are specified over the
extended industrial (−40°C to +125°C) temperature range. The
AD8601, single, is available in a tiny, 5-lead SOT-23 package. The
AD8602, dual, is available in 8-lead MSOP and 8-lead, narrow
SOIC surface-mount packages. The AD8604, quad, is available
in 14-lead TSSOP, 14-lead SOIC, and 16-lead QSOP packages.
See the Ordering Guide for automotive grades.
The ability to swing rail-to-rail at both the input and output
enables designers to buffer CMOS ADCs, DACs, ASICs, and
other wide output swing devices in single-supply systems.
Rev. G
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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