データシートサーチシステム |
|
OP113ES データシート(PDF) 8 Page - Analog Devices |
|
OP113ES データシート(HTML) 8 Page - Analog Devices |
8 / 16 page OP113/OP213/OP413 –8– REV. C Precision Voltage Comparator With its PNP inputs and zero volt common-mode capability, the OP113 family can make useful voltage comparators. There is only a slight penalty in speed in comparison to IC comparators. However, the significant advantage is its voltage accuracy. For example, VOS can be a few hundred microvolts or less, combined with CMRR and PSRR exceeding 100 dB, while operating on 5 V supply. Standard comparators like the 111/311 family oper- ate on 5 volts, but not with common-mode at ground, nor with offset below 3 mV. Indeed, no commercially available single supply comparator has a VOS less than 200 µV. Figure 11 shows the OP113 family response to a 10 mV over- drive signal when operating in open loop. The top trace shows the output rising edge has a 15 µs propagation delay, while the bottom trace shows a 7 µs delay on the output falling edge. This ac response is quite acceptable in many applications. +5V 100 25k 0V –2.5V +2.5V tr = tf = 5ms 10mV OVERDRIVE 1/2 OP113 10 90 100 0% 2V 2V 5 s Figure 11. Precision Comparator The low noise and 250 µV (maximum) offset voltage enhance the overall dc accuracy of this type of comparator. Note that zero crossing detectors and similar ground referred comparisons can be implemented even if the input swings to –0.3 volts below ground. Low Voltage Headphone Amplifiers Figure 9 shows a stereo headphone output amplifier for the AD1849 16-bit SoundPort ® Stereo Codec device. The pseudo- reference voltage is derived from the common-mode voltage generated internally by the AD1849, thus providing a conve- nient bias for the headphone output amplifiers. 1/2 OP213 +5V 1/2 OP213 5k OPTIONAL GAIN 1k VREF 1/2 OP213 +5V VREF OPTIONAL GAIN 1k 5k 29 19 31 10k LOUT1L LOUT1R CMOUT AD1849 VREF 10 F 10k L VOLUME CONTROL R VOLUME CONTROL 16 220 F 47k HEADPHONE LEFT HEADPHONE RIGHT 10 F + 16 220 F 47k + Figure 9. Headphone Output Amplifier for Multimedia Sound Codec Low Noise Microphone Amplifier for Multimedia The OP113 family is ideally suited as a low noise microphone preamp for low voltage audio applications. Figure 10 shows a gain of 100 stereo preamp for the AD1849 16-bit SoundPort Stereo Codec chip. The common-mode output buffer serves as a “phantom power” driver for the microphones. +5V 1/2 OP213 10k 50 10 F 20 100 10k +5V 1/2 OP213 20 50 10 F 10k 1/2 OP213 10k 100 15 17 MINL MINR CMOUT AD1849 RIGHT ELECTRET CONDENSER MIC INPUT LEFT ELECTRET CONDENSER MIC INPUT 19 Figure 10. Low Noise Stereo Microphone Amplifier for Multimedia Sound Codec SoundPort is a registered trademark of Analog Device, Inc. |
同様の部品番号 - OP113ES |
|
同様の説明 - OP113ES |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト 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 |