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OPA2734 PDF预览

OPA2734

更新时间: 2024-11-05 04:35:47
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描述
0.05uV/ⅹC max, SINGLE-SUPPLY CMOS OPERATIONAL AMPLIFIERS

OPA2734 数据手册

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OPA734, OPA2734  
OPA735, OPA2735  
SBOS282B − DECEMBER 2003 − REVISED FEBRUARY 2005  
0.05µV/°C max, SINGLE-SUPPLY CMOS  
OPERATIONAL AMPLIFIERS  
Zer-Drift Series  
FD EATURES  
DESCRIPTION  
The OPA734 and OPA735 series of CMOS operational  
amplifiers use auto-zeroing techniques to simultaneously  
provide low offset voltage (5µV max) and near-zero drift  
over time and temperature. These miniature, high-preci-  
sion, low quiescent current amplifiers offer high input  
impedance and rail-to-rail output swing within 50mV of the  
rails. Either single or bipolar supplies can be used in the  
range of +2.7V to +12V ( 1.35V to 6V). They are  
optimized for low-voltage, single-supply operation.  
LOW OFFSET VOLTAGE: 5µV (max)  
ZERO DRIFT: 0.05µV/°C max  
QUIESCENT CURRENT: 750µA (max)  
SINGLE-SUPPLY OPERATION  
LOW BIAS CURRENT: 200pA (max)  
SHUTDOWN  
D
D
D
D
D
D
D
MicroSIZE PACKAGES  
WIDE SUPPLY RANGE: 2.7V to 12V  
The OPA734 family includes a shutdown mode. Under  
logic control, the amplifiers can be switched from normal  
operation to a standby current that is 9µA (max) and the  
output placed in a high-impedance state.  
AD PPLICATIONS  
TRANSDUCER APPLICATIONS  
D
D
D
D
D
TEMPERATURE MEASUREMENTS  
ELECTRONIC SCALES  
MEDICAL INSTRUMENTATION  
BATTERY-POWERED INSTRUMENTS  
HANDHELD TEST EQUIPMENT  
The single version is available in the MicroSIZE SOT23-5  
(SOT23-6 for shutdown version) and the SO-8 packages.  
The dual version is available in the MSOP-8 and SO-8  
packages (MSOP-10 only for the shutdown version). All  
versions are specified for operation from −40°C to +85°C.  
VREF = 15V  
R3  
G = 1 + 2  
RG  
REF102  
10V  
R1  
1kΩ  
C1  
1nF  
1/2  
OPA2735  
R3  
10kΩ  
C4  
1nF  
C2  
10nF  
C4  
1nF  
RG  
R3  
10kΩ  
R2  
1k  
1/2  
OPA2735  
C3  
1nF  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ  
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ  
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ  
Copyright 2003-2005, Texas Instruments Incorporated  
www.ti.com  

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