Datasheet AD8661, AD8662, AD8664 (Analog Devices)

Low Noise, Precision 16 V CMOS, Rail-to-Rail Operational Amplifiers Data Sheet AD8661 /AD8662/ AD8664 FEATURES PIN CONFIGURATIONS Low offset voltage: 100 µV maximum at V = 5 V S NIC 1 8 NIC NIC 1 8 NIC Low input bias current: 1 pA maximum –IN 2 AD8661 7 V+ –IN 2 7 V+ AD8661 Single-supply operation: 5 V to 16 V TOP VIEW +IN 3 6 OUT (Not to Scale) TOP VIEW +IN 3 6 OUT (Not to Scale) Low noise: 10 nV/√Hz V– 4 5 NIC
002
V– 4 5 NIC Wide bandwidth: 4 MHz NIC = NO INTERNALCONNECTION
05200-
Unity-gain stable NOTES
035
1. NIC = NO INTERNAL CONNECTION. Small package options 2. CONNECT THE EXPOSED PAD TO V–.
05200-
3 mm × 3 mm 8-lead LFCSP
Figure 1. AD8661, 8-Lead SOIC Figure 2. AD8661, 8-Lead LFCSP
8-lead MSOP and narrow SOIC
(R-8) (CP-8-13)
14-lead TSSOP and narrow SOIC OUT A 1 8 V+ OUT A 1 8 V+ AD8662 –IN A 2 AD8662 7 OUT B –IN A 2 7 OUT B APPLICATIONS TOP VIEW TOP VIEW +IN A 3 6 –IN B (Not to Scale) +IN A 3 6 –IN B (Not to Scale)
001 004
Sensors V– 4 5 +IN B V– 4 5 +IN B
05200- 05200-
Medical equipment
Figure 3. AD8662, 8-Lead SOIC Figure 4. AD8662, 8-Lead MSOP
Consumer audio
(R-8) (RM-8)
Photodiode amplification ADC drivers OUT A 1 14 OUT D OUT A 1 14 OUT D –IN A 2 AD8664 13 –IN D –IN A 2 13 –IN D AD8664 +IN A 3 TOP VIEW 12 +IN D +IN A 3 12 +IN D TOP VIEW (Not to Scale) V+ (Not to Scale) 4 11 V– V+ 4 11 V– +IN B 5 10 +IN C +IN B 5 10 +IN C –IN B 6 9 –IN C –IN B 6 9 –IN C OUT B 7 8 OUT C OUT B 7 8 OUT C
036 037 05200- 05200- Figure 5. AD8664, 14-Lead SOIC Figure 6. AD8664, 14-Lead TSSOP (R-14) (RU-14)
GENERAL DESCRIPTION
The AD8661/AD8662/AD86641 are rail-to-rail output, single- converters (DACs). Audio applications and medical monitoring supply amplifiers that use the Analog Devices, Inc., patented equipment can take advantage of the high input impedance, low DigiTrim® trimming technique to achieve low offset voltage. voltage, low current noise, and wide bandwidth. The AD8661/AD8662/AD8664 series features extended The single AD8661 is available in a narrow 8-lead SOIC package operating ranges, with supply voltages up to 16 V. It also and a very thin, dual lead, 8-lead LFCSP. The AD8661 SOIC features low input bias current, wide signal bandwidth, package is specified over the extended industrial temperature and low input voltage and current noise. range of −40°C to +125°C. The AD8661 LFCSP is specified over The combination of low offset, very low input bias current, the industrial temperature range of −40°C to +85°C. The AD8662 and a wide supply range makes these amplifiers useful in a wide is available in a narrow 8-lead SOIC package and an 8-lead MSOP, variety of applications usually associated with higher priced JFET both specified over the extended industrial temperature range of amplifiers. Systems using high impedance sensors, such as −40°C to +125°C. The AD8664 is available in a narrow 14-lead photodiodes, benefit from the combination of low input bias SOIC package and a 14-lead TSSOP, both with an extended current, low noise, low offset, and wide bandwidth. The wide industrial temperature range of −40°C to +125°C. 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.
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Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD8661/AD8662/AD8664 ELECTRICAL CHARACTERISTICS—SOIC, MSOP, AND TSSOP AD8661/AD8662/AD8664 ELECTRICAL CHARACTERISTICS—SOIC, MSOP, AND TSSOP AD8661 ELECTRICAL CHARACTERISTICS—LFCSP ONLY AD8661 ELECTRICAL CHARACTERISTICS—LFCSP ONLY ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE NOTES