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ALD1726

更新时间: 2024-10-28 22:47:47
品牌 Logo 应用领域
先进线性 - ALD 运算放大器
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10页 69K
描述
EPAD⑩ ULTRA MICROPOWER OPERATIONAL AMPLIFIER

ALD1726 数据手册

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A
L
D
DVANCED  
INEAR  
EVICES, INC.  
ALD1726E/ALD1726  
EPAD™ ULTRA MICROPOWER OPERATIONAL AMPLIFIER  
BENEFITS  
KEY FEATURES  
• Eliminates manual and elaborate  
EPAD ( Electrically Programmable Analog Device)  
User programmable V  
trimmer  
Computer-assisted trimming  
Rail-to-rail input/output  
Compatible with standard EPAD Programmer  
High precision through in-system circuit precision trimming  
system trimming procedures  
• Remote controlled automated trimming  
• In-System Programming capability  
• No external components  
• No internal chopper clocking noise  
• No chopper dynamic power dissipation  
• Simple and cost effective  
• Small package size  
• Extremely small total functional  
volume size  
OS  
Reduces or eliminates V , PSRR, CMRR and TCV  
errors  
OS  
OS  
System level “calibration” capability  
Application-Specific Programming mode  
In-System Programming mode  
Electrically programmable to compensate for  
external component tolerances  
Achieves 0.01pA input bias current and 50µV  
input offset voltage simultaneously  
Compatible with industry standard pinout  
• Low system implementation cost  
• Micropower and Low Voltage  
APPLICATIONS  
GENERAL DESCRIPTION  
• Sensor interface circuits  
The ALD1726E/ALD1726 is a monolithic rail-to-rail ultra-micropower  
precision CMOS operational amplifier with integrated user programmable  
EPAD (Electrically Programmable Analog Device) based offset voltage  
adjustment. The ALD1726E/ALD1726 is a direct replacement of the  
ALD1706 operational amplifier, with the added feature of user-program-  
mable offset voltage trimming resulting in significantly enhanced total  
system performance and user flexibility. EPAD technology is an exclusive  
ALD design which has been refined for analog applications where preci-  
sion voltage trimming is necessary to achieve a desired performance. It  
utilizes CMOS FETs as in-circuit elements for trimming of offset voltage  
bias characteristics with the aid of a personal computer under software  
control. Once programmed, the set parameters are stored indefinitely  
within the device even after power-down. EPAD offers the circuit designer  
a convenient and cost-effective trimming solution for achieving the very  
highest amplifier/system performance.  
• Transducer biasing circuits  
• Capacitive and charge integration circuits  
• Biochemical probe interface  
• Signal conditioning  
• Portable instruments  
• High source impedance electrode  
amplifiers  
• Precision Sample and Hold amplifiers  
• Precision current to voltage converter  
• Error correction circuits  
• Sensor compensation circuits  
• Precision gain amplifiers  
• Periodic In-system calibration  
• System output level shifter  
The ALD1726E/ALD1726 operational amplifier features rail-to-rail input  
and output voltage ranges, tolerance to over-voltage input spikes of  
300mVbeyondsupplyrails, extremelylowinputcurrentsof0.01pAtypical,  
highopenloopvoltagegain, usefulbandwidthof 200KHz, slewrateof0.17  
V/µs, and low typical supply current of 25µA.  
PIN CONFIGURATION  
VE1  
-IN  
1
8
7
6
5
VE2  
ORDERING INFORMATION  
Operating Temperature Range  
+
V
2
-55°C to +125°C  
0°C to +70°C  
0°C to +70°C  
+IN  
3
4
OUT  
N/C  
8-Pin  
8-Pin  
8-Pin  
-
CERDIP  
Small Outline  
Plastic Dip  
V
Package  
Package (SOIC)  
Package  
TOP VIEW  
DA, PA, SA PACKAGE  
ALD1726E DA  
ALD1726 DA  
ALD1726E SA  
ALD1726 SA  
ALD1726E PA  
ALD1726 PA  
* 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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