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ALD2704DA 参数 Datasheet PDF下载

ALD2704DA图片预览
型号: ALD2704DA
PDF下载: 下载PDF文件 查看货源
内容描述: 双路轨到轨CMOS运算放大器 [DUAL RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER]
分类和应用: 运算放大器
文件页数/大小: 6 页 / 49 K
品牌: ALD [ ADVANCED LINEAR DEVICES ]
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A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD2704A/ALD2704B
ALD2704
DUAL RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER
GENERAL DESCRIPTION
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
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.
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
applications where lower operating voltages, such as 9V battery or
±3.25V
to
±6V
power supplies are being used. The ALD2704 offers high slew rate
of 5V/µs. It is designed and manufactured with Advanced Linear Devices'
standard enhanced ACMOS silicon gate CMOS process, and it offers low
unit cost and exceptional reliability.
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 1.5KΩ resistive 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.
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
feature is intended to greatly simplify systems design and eliminate higher
voltage power supplies in many applications.
FEATURES
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
High capacitive load capability -- up to 4000pF
No frequency compensation required -- unity
gain stable
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
Unity gain bandwidth of 2.1MHz
APPLICATIONS
Voltage amplifier
Voltage follower/buffer
Charge integrator
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
PIN CONFIGURATION
ORDERING INFORMATION
Operating Temperature Range*
-55°C to +125°C
0°C to +70°C
0°C to +70°C
8-Pin
CERDIP
Package
ALD2704A DA
ALD2704B DA
ALD2704 DA
8-Pin
Small Outline
Package (SOIC)
ALD2704A SA
ALD2704B SA
ALD2704 SA
8-Pin
Plastic Dip
Package
ALD2704A PA
ALD2704B PA
ALD2704 PA
OUT
A
-IN
A
+IN
A
V-
1
2
3
4
TOP VIEW
DA, PA, SA PACKAGE
8
7
6
5
V+
OUT
B
-IN
B
+IN
B
* Contact factory for industrial temperature range
© 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com