Low Cost Micropower, Low Noise CMOS Rail-to-
Rail, Input/Output Operational Amplifiers
AD8613/AD8617/AD8619
FEATURES
PIN CONFIGURATIONS
Offset voltage: 2.2 mV max
Low input bias current: 1 pA max
Single-supply operation: 1.8 V to 5 V
Low noise: 22 nV/√Hz
1
2
3
5
OUT
V–
V+
AD8613
TOP VIEW
(Not to Scale)
4
+IN
–IN
Figure 1. 5-Lead SC70 and 5-Lead TSOT-23
Micropower: 38 μA
No phase reversal
Unity gain stable
8
7
6
5
OUT A
–IN A
+IN A
V–
1
2
3
4
V+
AD8617
TOP VIEW
(Not to Scale)
OUT B
–IN B
+IN B
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Figure 2. 8-Lead MSOP
Current shunt sense
Sensors
ADC predrivers
DAC drivers/level shifters
Low power ASIC input or output amplifiers
1
2
3
4
8
7
6
5
OUT A
–IN A
+IN A
V–
V+
AD8617
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
Figure 3. 8-Lead SOIC_N
GENERAL DESCRIPTION
1
2
3
4
5
6
7
OUT A
–IN A
+IN A
V+
14
13
12
11
OUT D
–IN D
+IN D
V–
The AD8613/AD8617/AD8619 are single, dual, and quad
micropower, rail-to-rail input and output amplifiers that feature
low supply current, low input voltage, and low current noise.
AD8619
TOP VIEW
(Not to Scale)
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
The parts are fully specified to operate from 1.8 V to 5.0 V
single supply, or 0.9 V and 2.5 V dual supply. The combination
of low noise, very low input bias currents, and low power
consumption make the AD8613/AD8617/AD8619 especially
useful in portable and loop-powered instrumentation.
OUT C
Figure 4. 14-Lead TSSOP
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
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.
13 –IN D
12 +IN D
11 V–
AD8619
TOP VIEW
(Not to Scale)
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
The AD8613 is available in a 5-lead SC70 package and a 5-lead
TSOT-23 package. The AD8617 is available in 8-lead MSOP
and 8-lead SOIC packages. The AD8619 is available in 14-lead
TSSOP and 14-lead SOIC packages.
Figure 5. 14-Lead SOIC_N
Rev. B
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