AD8603_05 Datasheet, PDF (1/20 Pages) Analog Devices – Precision Micropower, Low Noise CMOS Rail-to-Rail Input/Output Operational Amplifiers

Precision Micropower, Low Noise CMOS
Rail-to-Rail Input/Output Operational Amplifiers
AD8603/AD8607/AD8609
FEATURES
Low offset voltage: 50 μV max
Low input bias current: 1 pA max
Single-supply operation: 1.8 V to 5 V
Low noise: 22 nV/√Hz
Micropower: 50 μA max
Low distortion
No phase reversal
Unity gain stable
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Sensors
Low power ASIC input or output amplifiers
GENERAL DESCRIPTION
The AD8603/AD8607/AD8609 are single/dual/quad micro-
power rail-to-rail input and output amplifiers, respectively, that
feature very low offset voltage as well as low input voltage and
current noise.
These amplifiers use a patented trimming technique that
achieves superior precision without laser trimming. The parts
are fully specified to operate from 1.8 V to 5.0 V single supply
or from ±0.9 V to ±2.5 V dual supply. The combination of low
offsets, low noise, very low input bias currents, and low power
consumption make the AD8603/AD8607/AD8609 especially
useful in portable and loop-powered instrumentation.
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 low power, single-supply
systems.
The AD8603 is available in a tiny 5-lead TSOT-23 package.
The AD8607 is available in 8-lead MSOP and 8-lead SOIC
packages. The AD8609 is available in 14-lead TSSOP and
14-lead SOIC packages.
PIN CONFIGURATIONS
OUT 1
5 V+
AD8603
V– 2 ^{TOP VIEW}
(Not to Scale)
+IN 3
4 –IN
Figure 1. 5-Lead TSOT-23 (UJ Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8607
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 2. 8-Lead MSOP (RM Suffix)
OUT A 1
8 V+
–IN A 2 AD8607 7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 ^{(Not to Scale)} 5 +IN B
Figure 3. 8-Lead SOIC_N (R Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
AD8609
TOP VIEW
(Not to Scale)
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 4. 14-Lead TSSOP (RU Suffix)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3 _AD8609 12 +IN D
V+ 4 TOP VIEW 11 V–
+IN B 5 ^{(Not to Scale)} 10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 5. 14-Lead SOIC_N (R Suffix)
Rev. B
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