Precision MicroPower
Rail to Rail Input/Output Low
Noise CMOS
Operational Amplifier
AD8603, AD8607, AD8609
Preliminary Technical Data
FEATURES
PIN CONFIGURATIONS
Low Offset Voltage: 40µV typ
Low Input Bias Current: 1pA max
Single-Supply Operation: 1.8 to 5 Volts
Low Noise: 27 nV/√Hz
8- Lead SOIC
(R Suffix)
5- Lead TSOT-23
(UJ Suffix)
Micropower: 50 µA/Amp max.
No Phase Reversal
1
8
NC
V+
NC
-IN
+IN
OUT
V
1
5
V+
-IN
AD8603
Unity Gain Stable
AD8603
OUT
NC
3
4
4
5
V-
+IN
APPLICATIONS
Battery Powered Instrumentation
Multi-pole Filters
Capacitive and Inductive Sensors
Low power ASIC Input or Output Amplifier
NC = NO CONNECT
8- Lead SOIC
(R Suffix)
8- Lead MSOP
(RM Suffix)
OUT A
-IN A
+IN A
V-
V+
OUT A
-IN A
8
5
V+
1
OUT B
-IN B
+IN B
GENERAL DESCRIPTION
OUT B
-IN B
+IN B
AD8607
AD8607
4
+IN A
V-
The AD8603, AD8607, AD8609 are single, dual and
quad micro-power rail-to-rail input and output amplifiers
featuring very low offset voltage, low input voltage and
current noise. These amplifiers use a patented trimming
technique that achieves superior precision without laser
trimming. All are fully specified to operate from +1.8V to
+5.0V single supply (or ±0.9 and ±2.5V Dual Supply). The
combination of low offsets, low noise, very low input bias
currents, and low power consumption make these ampli-
fiers especially useful in portable and loop-powered in-
strumentation.
14- Lead SOIC
(R Suffix)
14- Lead
TSSOP
1
14
OUT A
- IN A
+ IN A
V +
OUT D
OUT A
- IN A
+IN A
V+
OUT D
- IN D
+IN D
V-
- IN D
+ IN D
AD8609
V -
+ IN B
- IN B
OUT B
+ IN C
AD8609
- IN C
7
OUT C
8
+IN B
- IN B
OUT B
+IN C
- IN C
OUT C
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, single, is available in the tiny 5-lead
TSOT-23 package. The AD8607, dual, is available in the 8-
lead micro-SOIC and narrow SOIC surface mount pack-
ages. The AD8609, quad, is available in 14-lead TSSOP
and narrow 14-pin SOIC packages. SOT, MSOP and
TSSOP versions are available in tape and reel only.
Rev. PrA
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