16 V, 1 MHz, CMOS Rail-to-Rail
Input/Output Operational Amplifier
ADA4665-2
PIN CONFIGURATIONS
FEATURES
Lower power at high voltage: 290 μA per amplifier typical
Low input bias current: 1 pA maximum
Wide bandwidth: 1.2 MHz typical
Slew rate: 1 V/μs typical
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
ADA4665-2
TOP VIEW
(Not to Scale)
OUT B
–IN B
+IN B
Offset voltage drift: 3 μV/°C typical
Single-supply operation: 5 V to 16 V
Dual-supply operation: 2.5 V to 8 V
Unity gain stable
Figure 1. 8-Lead SOIC
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
ADA4665-2
OUT B
–IN B
+IN B
APPLICATIONS
TOP VIEW
(Not to Scale)
Portable systems
High density power budget systems
Medical equipment
Physiological measurement
Precision references
Multipole filters
Figure 2. 8-Lead MSOP
Sensors
Transimpedance amplifiers
Buffer/level shifting
GENERAL DESCRIPTION
The ADA4665-2 is a rail-to-rail input/output dual amplifier
optimized for lower power budget designs. The ADA4665-2
offers a low supply current of 400 μA maximum per amplifier
at 25°C and 600 μA maximum per amplifier over the extended
industrial temperature range. This feature makes the ADA4665-2
well suited for low power applications. In addition, the ADA4665-2
has a very low bias current of 1 pA maximum, low offset voltage
drift of 3 μV/°C, and bandwidth of 1.2 MHz. The combination of
these features, together with a wide supply voltage range from
5 V to 16 V, allows the device to be used in a wide variety of
other applications, including process control, instrumentation
equipment, buffering, and sensor front ends. Furthermore, its
rail-to-rail input and output swing adds to its versatility. The
ADA4665-2 is specified from −40°C to +125°C and is available
in standard SOIC and MSOP packages.
Table 1. Low Cost Rail-to-Rail Input/Output Op Amps
Supply
Single
Dual
5 V
16 V
AD8541
AD8542
AD8544
ADA4665-2
Quad
Table 2. Other Rail-to-Rail Input/Output Op Amps
Supply
Single
Dual
5 V
16 V
36 V
AD8603
AD8607
AD8609
AD8663
AD8667
AD8669
ADA4091-2
Quad
Rev. 0
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