Low Cost Micropower, Low Noise CMOS
Rail-to-Rail, Input/Output Operational Amplifiers
AD8613/AD8617/AD8619
FEATURES
PIN CONFIGURATIONS
Offset voltage: 2.2 mV maximum
Low input bias current: 1 pA maximum
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
Micropower: 50 μA/amplifier maximum over temperature
No phase reversal
Unity gain stable
Figure 1. 5-Lead SC70 and 5-Lead TSOT-23
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
Qualified for automotive applications
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Figure 2. 8-Lead MSOP and 8-Lead SOIC_N
Current shunt sense
Sensors
ADC predrivers
DAC drivers/level shifters
Low power ASIC input or output amplifiers
OUT A 1
–IN A 2
+IN A 3
V– 4
8 V+
AD8617
TOP VIEW
(Not to Scale)
7 OUT B
6 –IN B
5 +IN B
NOTES
1. PIN 4 AND THE EXPOSED PAD
MUST BE CONNECTED TO V–.
GENERAL DESCRIPTION
Figure 3. 8-Lead LFCSP_VD
The AD8613/AD8617/AD8619 are single, dual, and quad micro-
power, rail-to-rail input and output amplifiers that feature low
supply current, as well as low input voltage and current noise.
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–
AD8619
TOP VIEW
(Not to Scale)
The parts are fully specified to operate from 1.8 V to 5 V single
supply, or ±±.9 V and ±ꢀ.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.
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
Figure 4. 14-Lead TSSOP
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.
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
13 –IN D
12 +IN D
11 V–
AD8619
TOP VIEW
(Not to Scale)
+IN B
–IN B
OUT B
10 +IN C
The AD8613 is available in a 5-lead SC7± package and a 5-lead
TSOT-ꢀ3 package. The AD8617 is available in 8-lead MSOP,
8-lead SOIC, and 8-lead LFCSP packages. The AD8619 is available
in 14-lead TSSOP and 14-lead SOIC packages. The AD8617W
is qualified for automotive applications and is available in an
8-lead MSOP package and an 8-lead SOIC package.
9
8
–IN C
OUT C
Figure 5. 14-Lead SOIC_N
Rev. E
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