Low Power JFET-Input Op Amps
ADA4062-2/ADA4062-4
FEATURES
PIN CONFIGURATIONS
Low input bias current: 50 pA maximum
Offset voltage
1.5 mV maximum for B grade (ADA4062-2 SOIC package)
2.5 mV maximum for A grade
Offset voltage drift: 5 μV/°C typical
Slew rate: 3.3 V/μs typical
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
ADA4062-2
TOP VIEW
(Not to Scale)
OUT B
–IN B
+IN B
Figure 1. 8-Lead Narrow-Body SOIC and 8-Lead MSOP
CMRR: 90 dB typical
Low supply current: 165 μA typical
High input impedance
Unity-gain stable
–IN A
8 OUT B
2
5 V to 15 V dual-supply operation
Packaging
ADA4062-2
TOP VIEW
(Not to Scale)
+IN A 3
7
–IN B
8-lead SOIC, 8-lead MSOP, 10-lead LFCSP, 14-lead TSSOP, and
16-lead LFCSP packages
NC = NO CONNECT
APPLICATIONS
Figure 2. 10-Lead LFCSP
Power controls and monitoring
Active filters
Industrial/process controls
Body probe electronics
Data acquisition
1
2
3
4
5
6
7
14
13
12
11
10
9
OUT A
–IN A
+IN A
V+
OUT D
–IN D
+IN D
V–
ADA4062-4
TOP VIEW
(Not to Scale)
Integrators
Input buffering
+IN B
–IN B
OUT B
+IN C
–IN C
OUT C
8
GENERAL DESCRIPTION
Figure 3. 14-Lead TSSOP
The ADA4062-2 and ADA4062-4 are dual and quad JFET-input
amplifiers with industry-leading performance. They offer lower
power, offset voltage, drift, and ultralow bias current. The
ADA4062-2 B grade (SOIC package) features a typical low offset
voltage of 0.5 mV, an offset drift of 5 μV/°C, and a bias current
of 2 pA.
1
12 –IN D
–IN A
+IN A
V+
ADA4062-4
+IN D
V–
2
3
4
11
10
9
TOP VIEW
The ADA4062 family is ideal for various applications, including
process controls, industrial and instrumentation equipment,
active filtering, data conversion, buffering, and power control
and monitoring. With a low supply current of 165 μA per
amplifier, they are well suited for lower power applications.
(Not to Scale)
+IN B
+IN C
NOTES
1. NC = NO CONNECT.
2. IT IS RECOMMENDED TO CONNECT THE EXPOSED PAD TO V–.
The ADA4062 family is also specified for the extended industrial
temperature range of −40°C to +125°C. The ADA4062-2 is
available in lead-free, 8-lead SOIC, 8-lead MSOP, and 10-lead
LFCSP (1.6 mm × 1.3 mm × 0.55 mm) packages, while the
ADA4062-4 is available in lead-free, 14-lead TSSOP and
16-lead LFCSP packages.
Figure 4. 16-Lead LFCSP
Table 1. Low Power Op Amps
Precision
CMOS
Precision
High Bandwidth
High
Bandwidth
Single
Dual
Quad
AD8663
AD8667
AD8669
AD8641
AD8642
AD8643
AD8682
AD8684
Rev. B
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