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ALD2704B PDF预览

ALD2704B

更新时间: 2024-11-09 04:32:15
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先进线性 - ALD 运算放大器
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描述
DUAL RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER

ALD2704B 数据手册

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A
L
D
DVANCED  
INEAR  
EVICES, INC.  
ALD2704A/ALD2704B  
ALD2704  
DUAL RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER  
GENERAL DESCRIPTION  
FEATURES  
The ALD2704 is a dual monolithic operational amplifier with MOSFET  
input that has rail-to-rail input and output voltage ranges. The input  
voltage range and output voltage range are very close to the positive and  
negative power supply voltages. Typically the input voltage can be  
• Rail-to-rail input and output voltage ranges  
• Symmetrical push-pull output drives  
• Output settles to 2mV of supply rails  
• 5.0V/µs slew rate  
• Highcapacitiveloadcapability--upto4000pF  
• No frequency compensation required -- unity  
gain stable  
+
beyond positive power supply voltage V or the negative power supply  
-
voltage V by up to 300mV. The output voltage swings to within 60mV of  
either positive or negative power supply voltages at rated load.  
• Extremely low input bias currents -- <1.0pA  
typical (20pA max.)  
• Ideal for high source impedance applications  
• High voltage gain -- typically 100V/mV  
• Output short circuit protected  
With high impedance load, the output voltage of the ALD2704 ap-  
proaches within 1mV of the power supply rails. This device is designed  
as an alternative to the popular J-FET input operational amplifier in  
applicationswhereloweroperatingvoltages,suchas9Vbatteryor±3.25V  
to ±6Vpowersuppliesarebeingused. TheALD2704offershighslewrate  
of 5V/µs. It is designed and manufactured with Advanced Linear Devices'  
standardenhancedACMOSsilicongateCMOSprocess, and it offerslow  
unit cost and exceptional reliability.  
• Unity gain bandwidth of 2.1MHz  
APPLICATIONS  
• Voltage amplifier  
• Voltage follower/buffer  
• Charge integrator  
The rail-to-rail input and output feature of the ALD2704 expands signal  
voltage range for a given operating supply voltage and allows numerous  
analog serial stages to be implemented without losing operating voltage  
margin. The output stage is designed to drive up to 10mA into 400pF  
capacitive and 1.5Kresistive loads at unity gain and up to 4000pF at a  
gain of 5. Short circuit protection to either ground or the power supply rails  
is at approximately 15mA clamp current. Due to complementary output  
stage design, the output can source and sink 10mA into a load with  
symmetrical drive and is ideally suited for applications where push-pull  
voltage drive is desired.  
• Photodiode amplifier  
• Data acquisition systems  
• High performance portable instruments  
• Signal conditioning circuits  
• Low leakage amplifiers  
• Active filters  
• Sample/Hold amplifier  
• Picoammeter  
• Current to voltage converter  
• Coaxial cable driver  
• Capacitive sensor amplifier  
• Piezoelectric transducer amplifier  
For each of the operational amplifier, the offset voltage is trimmed on-chip  
to eliminate the need for external nulling in many applications. For  
precision applications, the output is designed to settle to 0.1% in 2µs. In  
large signal buffer applications, the operational amplifier can function as  
an ultrahigh input impedance voltage follower /buffer that allows input and  
output voltage swings from positive to negative supply voltages. This  
featureisintendedtogreatlysimplifysystemsdesignandeliminatehigher  
voltage power supplies in many applications.  
PIN CONFIGURATION  
ORDERING INFORMATION  
Operating Temperature Range*  
+
OUT  
1
8
V
A
A
-55°C to +125°C  
0°C to +70°C  
0°C to +70°C  
-IN  
2
3
7
6
OUT  
-IN  
B
8-Pin  
8-Pin  
8-Pin  
CERDIP  
Package  
Small Outline  
Package (SOIC)  
Plastic Dip  
Package  
+IN  
A
-
B
V
4
5
+IN  
B
ALD2704A DA  
ALD2704B DA  
ALD2704 DA  
ALD2704A SA  
ALD2704B SA  
ALD2704 SA  
ALD2704A PA  
ALD2704B PA  
ALD2704 PA  
TOP VIEW  
DA, PA, SA PACKAGE  
* Contact factory for industrial temperature range  
© 1998 Advanced Linear Devices, Inc. 415Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com  

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