Datasheet

Low Cost Micropower, Low Noise CMOS
Rail-to-Rail, Input/Output Operational Amplifiers
AD8613/AD8617/AD8619
Rev. E
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FEATURES
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
Micropower: 50 μA/amplifier maximum over temperature
No phase reversal
Unity gain stable
Qualified for automotive applications
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Current shunt sense
Sensors
ADC predrivers
DAC drivers/level shifters
Low power ASIC input or output amplifiers
GENERAL DESCRIPTION
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.
The parts are fully specified to operate from 1.8 V to 5 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.
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 AD8613 is available in a 5-lead SC70 package and a 5-lead
TSOT-23 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.
PIN CONFIGURATIONS
1
2
3
5
4
V+
–IN
OUT
V–
+IN
05622-037
AD8613
TOP VIEW
(Not to Scale)
Figure 1. 5-Lead SC70 and 5-Lead TSOT-23
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8617
TOP VIEW
(Not to Scale)
05622-001
Figure 2. 8-Lead MSOP and 8-Lead SOIC_N
1OUT A
2–IN A
3+IN A
4V–
7OUT B
8V+
6 –IN B
5 +IN B
05622-022
NOTES
1. PIN 4 AND THE EXPOSED PAD
MUST BE CONNECTED TO V–.
TOP VIEW
(Not to Scale)
AD8617
Figure 3. 8-Lead LFCSP_VD
05622-035
1
2
3
4
5
6
7
AD8619
–IN A
+IN A
V+
OUT B
–IN B
+IN B
OUT A 14
13
12
11
10
9
8
–IN D
+IN D
V–
OUT C
–IN C
+IN C
OUT D
TOP VIEW
(Not to Scale)
Figure 4. 14-Lead TSSOP
05622-036
OUT A 1
–IN A
2
+IN A 3
V+ 4
OUT D14
–IN D
13
+IN D12
V–11
+IN B 5 +IN C 10
–IN B
6
–IN C
9
OUT B 7 OUT C8
AD8619
TOP VIEW
(Not to Scale)
Figure 5. 14-Lead SOIC_N