Datasheet AD8657, AD8659 (Analog Devices)

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22 μA, RRIO, CMOS,18 V Operational Amplifiers Data Sheet AD8657/ AD8659 FEATURES PIN CONNECTION DIAGRAMS Micropower at high voltage (18 V): 22 μA maximum OUT A 1 8 V+ Low offset voltage: 350 μV maximum –IN A AD8657 2 7 OUT B TOP VIEW Low input bias current: 20 pA maximum +IN A 3 6 –IN B (Not to Scale)
001 4-
Gain bandwidth product: 230 kHz at A V– 4 5 +IN B V = 100 typical
0880
Unity-gain crossover: 230 kHz
Figure 1. AD8657 Pin Configuration, 8-Lead MSOP
−3 dB closed-loop bandwidth: 305 kHz Single-supply operation: 2.7 V to 18 V OUT A 1 8 V+ –IN A 2 AD8657 Dual-supply operation: ±1.35 V to ±9 V 7 OUT B TOP VIEW Unity-gain stable +IN A 3 (Not to Scale) 6 –IN B Excellent electromagnetic interference immunity V– 4 5 +IN B APPLICATIONS
1
NOTES
-06
1. CONNECT THE EXPOSED PAD TO V– OR
04
LEAVE IT UNCONNECTED. Portable operating systems
088 Figure 2. AD8657 Pin Configuration, 8-Lead LFCSP
Current monitors 4 mA to 20 mA loop drivers
Note: For AD8659 pin connections and for more information
Buffer/level shifting
about the pin connections for these products, see the Pin
Multipole filters
Configurations and Function Descriptions section.
Remote/wireless sensors 60 Low power transimpedance amplifiers 50 GENERAL DESCRIPTION VSY = 2.7V VSY = 18V
The AD8657/AD8659 are dual and quad micropower, precision,
40 A) µ P (
rail-to-rail input/output amplifiers optimized for low power and
AM 30
wide operating supply voltage range applications.
R PE I SY
The AD8657/AD8659 operate from 2.7 V to 18 V with a typical
20
quiescent supply current of 18 μA. The devices use the Analog
10
Devices, Inc., patented DigiTrim® trimming technique, which achieves low offset voltage. The AD8657/AD8659 also have
0 –50 –25 0 25 50 75 100 125
023 high immunity to electromagnetic interference.
TEMPERATURE (°C)
08804- The combination of low supply current, low offset voltage, very Figure 3. AD8657, Supply Current vs. Temperature low input bias current, wide supply range, and rail-to-rail input
Table 1. Precision Micropower Op Amps (<250 μA)
and output make the AD8657/AD8659 ideal for current
Supply Voltage 5 V 12 V to 16 V 36 V
monitoring in process and motor control applications. The Single AD8538 OP196 combination of precision specifications makes these devices AD8603 ideal for dc gain and buffering of sensor front ends or high ADA4051-1 impedance input sources in wireless or remote sensors or Dual AD8539 AD8657 AD8622 transmitters. AD8607 ADA4091-2 The AD8657/AD8659 are specified over the extended industrial ADA4051-2 ADA4096-2 temperature range (−40°C to +125°C). The AD8657 is available in Quad AD8609 AD8659 AD8624 an 8-lead MSOP package and an 8-lead LFCSP package; the ADA4091-4 AD8659 is available in a 14-lead SOIC package and 16-lead ADA4096-4 LFCSP package.
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Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONNECTION DIAGRAMS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—18 V OPERATION ELECTRICAL CHARACTERISTICS—10 V OPERATION ELECTRICAL CHARACTERISTICS—2.7 V OPERATION ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION INPUT STAGE OUTPUT STAGE RAIL TO RAIL RESISTIVE LOAD Inverting Op Amp Configuration Noninverting Op Amp Configuration COMPARATOR OPERATION—AD8657 EMI REJECTION RATIO 4 mA TO 20 mA PROCESS CONTROL CURRENT LOOP TRANSMITTER—AD8657 OUTLINE DIMENSIONS ORDERING GUIDE