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AD8548 Datasheet(PDF) 1 Page - Analog Devices

Part # AD8548
Description  22 關A, RRIO, CMOS, 18 V
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8548 Datasheet(HTML) 1 Page - Analog Devices

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22 μA, RRIO, CMOS, 18 V
Operational Amplifier
Data Sheet
AD8546/AD8548
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Micropower at high voltage: 22 μA maximum
Low input bias current: 20 pA maximum
Gain bandwidth product: 240 kHz
Slew rate: 80 V/ms
Large signal voltage gain: 110 dB minimum
Single-supply operation: 2.7 V to 18 V
Dual-supply operation: ±1.35 V to ±9 V
Unity-gain stable
APPLICATIONS
Portable medical equipment
Remote sensors
Transimpedance amplifiers
Current monitors
4 mA to 20 mA loop drivers
Buffer/level shifting
PIN CONFIGURATIONS
OUT A 1
–IN A 2
+IN A 3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8546
TOP VIEW
(Not to Scale)
Figure 1. AD8546 (8-Lead MSOP)
OUT A
1
–IN A
2
+IN A
3
V+
4
OUT D
14
–IN D
13
+IN D
12
V–
11
+IN B
5
+IN C
10
–IN B
6
–IN C
9
OUT B 7
OUT C
8
AD8548
TOP VIEW
(Not to Scale)
Figure 2. AD8548 (14-Lead SOIC_N)
GENERAL DESCRIPTION
The AD8546 and AD8548 are dual and quad micropower, high
input impedance amplifiers optimized for low power and wide
operating supply voltage range applications.
The AD8546/AD8548 rail-to-rail input/output (RRIO) feature
provides increased dynamic range to drive low frequency data
converters, making these amplifiers ideal for dc gain and buffering
of sensor front ends or high impedance input sources used in
wireless or remote sensors or transmitters.
The low supply current specification (22 μA) of the AD8546/
AD8548 over a wide operating voltage range of 2.7 V to 18 V
or dual supplies (±1.35 V to ±9 V) makes these amplifiers useful
for a variety of battery-powered, portable applications, such as
ECGs, pulse monitors, glucose meters, smoke and fire detectors,
vibration monitors, and backup battery sensors.
The AD8546/AD8548 are specified over the extended industrial
temperature range of −40°C to +125°C. The AD8546 is available
in an 8-lead MSOP package; the AD8548 is available in a 14-lead
SOIC_N package.
Table 1. Micropower Op Amps1
Amplifier
Supply Voltage
5 V
12 V to 18 V
36 V
Single
AD8500
AD8663
AD8505
AD8541
AD8603
ADA4505-1
Dual
AD8502
AD8546
OP295
AD8506
AD8657
ADA4062-2
AD8542
AD8667
AD8607
OP281
ADA4505-2
Quad
AD8504
AD8548
OP495
AD8508
AD8669
ADA4062-4
AD8544
OP481
AD8609
ADA4505-4
1 See www.analog.com for the latest selection of micropower op amps.


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