Electronic Components Datasheet Search |
|
AD743 Datasheet(PDF) 1 Page - Analog Devices |
|
AD743 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page REV. E Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. AD743 Ultralow Noise BiFET Op Amp FEATURES Ultralow Noise Performance 2.9 nV/ √Hz at 10 kHz 0.38 V p-p, 0.1 Hz to 10 Hz 6.9 fA/ √Hz Current Noise at 1 kHz Excellent DC Performance 0.5 mV Max Offset Voltage 250 pA Max Input Bias Current 1000 V/mV Min Open-Loop Gain AC Performance 2.8 V/ s Slew Rate 4.5 MHz Unity-Gain Bandwidth THD = 0.0003% @ 1 kHz Available in Tape and Reel in Accordance with EIA-481A Standard APPLICATIONS Sonar Preamplifiers High Dynamic Range Filters (>140 dB) Photodiode and IR Detector Amplifiers Accelerometers CONNECTION DIAGRAMS 8-Lead PDIP (N) 16-Lead SOIC (R) AD743 8 TOP VIEW TOP VIEW 1 2 3 7 6 8 5 4 OUT NULL NC +VS +VS NC = NO CONNECT NC = NO CONNECT AD743 8 1 2 3 4 NC NC NC OUTPUT NC NC 8 7 6 5 9 10 11 12 13 14 16 15 –VS –IN +IN NC OFFSET NULL OFFSET NULL NC NC NC NULL –IN +IN –VS GENERAL DESCRIPTION The AD743 is an ultralow noise, precision, FET input, monolithic operational amplifier. It offers a combination of the ultralow volt- age noise generally associated with bipolar input op amps and the very low input current of a FET input device. Furthermore, the AD743 does not exhibit an output phase reversal when the negative common-mode voltage limit is exceeded. The AD743’s guaranteed, maximum input voltage noise of 4.0 nV/ √Hz at 10 kHz is unsurpassed for a FET input mono- lithic op amp, as is the maximum 1.0 µV p-p, 0.1 Hz to 10 Hz noise. The AD743 also has excellent dc performance with 250 pA maximum input bias current and 0.5 mV maximum offset voltage. The AD743 is specifically designed for use as a preamp in capaci- tive sensors, such as ceramic hydrophones. The AD743J is rated over the commercial temperature range of 0 °C to 70°C. The AD743 is available in a 16-lead SOIC and 8-lead PDIP. PRODUCT HIGHLIGHTS 1. The low offset voltage and low input offset voltage drift of the AD743 coupled with its ultralow noise performance mean that the AD743 can be used for upgrading many applications now using bipolar amplifiers. 2. The combination of low voltage and low current noise make the AD743 ideal for charge sensitive applications such as accelerometers and hydrophones. 3. The low input offset voltage and low noise level of the AD743 provide >140 dB dynamic range. 4. The typical 10 kHz noise level of 2.9 nV/ √Hz permits a three op amp instrumentation amplifier, using three AD743s, to be built which exhibits less than 4.2 nV/ √Hz noise at 10 kHz and which has low input bias currents. 100 1k 10k 100k 1 10 100 1000 1M 10M SOURCE RESISTANCE ( ) OP27 AND RESISTOR AD743 AND RESISTOR RESISTOR NOISE ONLY AD743 AND RESISTOR OR OP27 AND RESISTOR ( ) (– – –) ( — ) RSOURCE RSOURCE O E Figure 1. Input Voltage Noise vs. Source Resistance |
Similar Part No. - AD743_03 |
|
Similar Description - AD743_03 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |