AD8661_16 Datasheet, PDF (1/16 Pages) Analog Devices – Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers

Data Sheet
FEATURES
Low offset voltage: 100 µV maximum at V_S = 5 V
Low input bias current: 1 pA maximum
Single-supply operation: 5 V to 16 V
Low noise: 10 nV/√Hz
Wide bandwidth: 4 MHz
Unity-gain stable
Small package options
3 mm × 3 mm 8-lead LFCSP
8-lead MSOP and narrow SOIC
14-lead TSSOP and narrow SOIC
APPLICATIONS
Sensors
Medical equipment
Consumer audio
Photodiode amplification
ADC drivers
Low Noise, Precision 16 V CMOS,
Rail-to-Rail Operational Amplifiers
AD8661/AD8662/AD8664
PIN CONFIGURATIONS
NIC 1
8 NIC
–IN 2 AD8661 7 V+
TOP VIEW
+IN 3 _{(Not to Scale)} 6 OUT
V– 4
5 NIC
NIC = NO INTERNALCONNECTION
Figure 1. AD8661, 8-Lead SOIC
(R-8)
NIC 1
–IN 2
+IN 3
V– 4
AD8661
TOP VIEW
(Not to Scale)
8 NIC
7 V+
6 OUT
5 NIC
NOTES
1. NIC = NO INTERNAL CONNECTION.
2. CONNECT THE EXPOSED PAD TO V–.
Figure 2. AD8661, 8-Lead LFCSP
(CP-8-13)
OUT A 1
8 V+
–IN A 2 AD8662 7 OUT B
TOP VIEW
+IN A 3 _{(Not to Scale)} 6 –IN B
V– 4
5 +IN B
Figure 3. AD8662, 8-Lead SOIC
(R-8)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8662
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 4. AD8662, 8-Lead MSOP
(RM-8)
OUT A 1
14 OUT D
–IN A 2 _AD8664 13 –IN D
+IN A 3 TOP VIEW 12 +IN D
V+ 4 ^{(Not to Scale)} 11 V–
+IN B 5
10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
OUT A 1
14 OUT D
–IN A 2 _AD8664 13 –IN D
+IN A 3 TOP VIEW 12 +IN D
V+ 4 ^{(Not to Scale)} 11 V–
+IN B 5
10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
GENERAL DESCRIPTION
The AD8661/AD8662/AD8664¹ are rail-to-rail output, single-
supply amplifiers that use the Analog Devices, Inc., patented
DigiTrim® trimming technique to achieve low offset voltage.
The AD8661/AD8662/AD8664 series features extended
operating ranges, with supply voltages up to 16 V. It also
features low input bias current, wide signal bandwidth,
and low input voltage and current noise.
The combination of low offset, very low input bias current,
and a wide supply range makes these amplifiers useful in a wide
variety of applications usually associated with higher priced JFET
amplifiers. Systems using high impedance sensors, such as
photodiodes, benefit from the combination of low input bias
current, low noise, low offset, and wide bandwidth. The wide
operating voltage range meets the demands of high performance
analog-to-digital converters (ADCs) and digital-to-analog
1 _{Protected by U.S. Patents 6,194,962 and 6,696,894.}
Rev. E
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Figure 5. AD8664, 14-Lead SOIC
(R-14)
Figure 6. AD8664, 14-Lead TSSOP
(RU-14)
converters (DACs). Audio applications and medical monitoring
equipment can take advantage of the high input impedance, low
voltage, low current noise, and wide bandwidth.
The single AD8661 is available in a narrow 8-lead SOIC package
and a very thin, dual lead, 8-lead LFCSP. The AD8661 SOIC
package is specified over the extended industrial temperature
range of −40°C to +125°C. The AD8661 LFCSP is specified over
the industrial temperature range of −40°C to +85°C. The AD8662
is available in a narrow 8-lead SOIC package and an 8-lead MSOP,
both specified over the extended industrial temperature range of
−40°C to +125°C. The AD8664 is available in a narrow 14-lead
SOIC package and a 14-lead TSSOP, both with an extended
industrial temperature range of −40°C to +125°C.
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