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OPA835

更新时间： 2024-11-23 10:22:07
品牌 Logo 应用领域
德州仪器 - TI 运算放大器
页数 文件大小 规格书
43页 1353K
描述
Ultra Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp

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中文翻译

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OPA835 数据手册

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OPA835, OPA2835  
www.ti.com  
SLOS713B –JANUARY 2011–REVISED MAY 2011  
Ultra Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp  
Check for Samples: OPA835, OPA2835  
1
FEATURES  
DESCRIPTION  
Fabricated using the industry-leading BiCom-3x  
•
Ultra Low Power  
(SiGe complimentary bipolar) process, the OPA835  
and OPA2835 are single and dual ultra low-power,  
rail-to-rail output, negative rail input, voltage-feedback  
operational amplifiers designed to operate over a  
power supply range of 2.5V to 5.5V Single Supply  
and ±1.25V to ±2.75V dual supply. Consuming only  
250µA per channel and a unity gain bandwidth of  
56MHz, these amplifiers set an industry leading  
power-to-performance ratio for rail-to-rail amplifiers.  
–
–
–
Supply Voltage: 2.5V to 5.5V  
Quiescent Current: 250µA (typ)  
Power Down Mode: 0.5µA (typ)  
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Bandwidth: 56 MHz  
Slew Rate: 160 V/µs  
Rise Time: 10ns (2VSTEP  
)
Settling Time: 45ns (2VSTEP  
)
For battery powered portable applications where  
power is of key importance, the OPA835's and  
OPA2835's low power consumption and high  
frequency performance offers designers performance  
versus power not attainable in other devices. Coupled  
with a power savings mode to reduce current to  
<1.5μA, the device offers a very attractive solution for  
high frequency amplifiers in battery powered  
applications.  
Overdrive Recovery Time: 195ns  
SNR: 0.00015% (–116.4dBc) at 1 kHz (1VRMS  
)
THD: 0.00003% (–130dBc) at 1 kHz (1VRMS  
)
HD2/HD3: –70dBc/–73dBc at 1 MHz (2Vpp)  
Input Voltage Noise: 9.3nV/rtHz (f=100 kHz)  
Input Offset Voltage: 100 µV (500 µV max)  
CMRR: 113dB  
Output Current Drive: 40mA  
RRO – Rail-to-Rail Output  
The OPA835 and OPA2835 are offered in following  
package options:  
•
OPA835 Single: SOT23-6 (DBV), and 10 pin RUN  
with integrated gain resistors.  
Input Voltage Range: –0.2V to 3.9V (5V supply)  
Operating Temperature Range: –40°C–125°C  
•
OPA2835 Dual: SOIC-8 (D), MSOP-10 (DGS),  
and 10 pin RUN.  
APPLICATIONS  
The devices are characterized for operation over the  
extended industrial temperature range –40°C to  
125°C.  
•
•
•
•
•
•
•
Low Power Signal Conditioning  
Audio ADC Input Buffer  
Low Power SAR and ΔΣ ADC Driver  
Portable Systems  
OPA835 Related Products  
DESCRIPTION  
SINGLES  
DUALS  
OPA2830  
OPA2836  
TRIPLES  
QUADS  
OPA4830  
—
Low Power Systems  
Rail-to-Rail  
—
—
—
High Density Systems  
Rail-to-Rail, Low  
Power  
OPA836  
Ultrasonic Flow Meter  
Rail-to-Rail, Fixed  
Gain  
OPA832  
OPA690  
OPA820  
OPA2832 OPA3832  
OPA2690 OPA3690  
—
—
0
2.7V  
VSIG  
VSIG  
General-Purpose, High  
Slew Rate  
-20  
2.7V  
VS+  
0V  
1.35V  
100  
2.2nF  
4.02k  
4.02k  
5V  
2.5V  
REF  
2k  
VIN  
-40  
-60  
VDD  
OPA835  
VS-  
+In  
Low-Noise, DC  
Precision  
OPA2822  
—
OPA4820  
ADS8326  
-In  
2k  
2k  
-80  
-100  
-120  
-140  
0
20,000  
40,000  
60,000  
80,000  
100,000  
120,000  
Frequency (Hz)  
1
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.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2011, Texas Instruments Incorporated  
 
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OPA835 替代型号

型号 品牌 替代类型 描述 数据表
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