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AD8250ARMZ-R7 数据表(PDF) 1 Page - Analog Devices |
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AD8250ARMZ-R7 数据表(HTML) 1 Page - Analog Devices |
1 / 24 page 10 MHz, 20 V/μs, G = 1, 2, 5, 10 iCMOS Programmable Gain Instrumentation Amplifier Data Sheet AD8250 Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2007–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Small package: 10-lead MSOP Programmable gains: 1, 2, 5, 10 Digital or pin-programmable gain setting Wide supply: ±5 V to ±15 V Excellent dc performance High CMRR 98 dB (minimum), G = 10 Low gain drift: 10 ppm/°C (maximum) Low offset drift: 1.7 μV/°C (maximum), G = 10 Excellent ac performance Fast settling time: 615 ns to 0.001% (maximum) High slew rate: 20 V/µs (minimum) Low distortion: −110 dB THD at 1 kHz High CMRR over frequency: 80 dB to 50 kHz (minimum) Low noise: 18 nV/√Hz, G = 10 (maximum) Low power: 4.1 mA APPLICATIONS Data acquisition Biomedical analysis Test and measurement GENERAL DESCRIPTION The AD8250 is an instrumentation amplifier with digitally programmable gains that has GΩ input impedance, low output noise, and low distortion making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). It has a high bandwidth of 10 MHz, low THD of −110 dB and fast settling time of 615 ns (maximum) to 0.001%. Offset drift and gain drift are guaranteed to 1.7 μV/°C and 10 ppm/°C, respectively, for G = 10. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 80 dB at G = 1 from dc to 50 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8250 an excellent candidate for data acquisition. Furthermore, this monolithic solution simplifies design and manufacturing and boosts performance of instrumentation by maintaining a tight match of internal resistors and amplifiers. The AD8250 user interface consists of a parallel port that allows users to set the gain in one of two ways (see Figure 1). A 2-bit word sent via a bus can be latched using the WR input. An alternative is to use the transparent gain mode where the state of the logic levels at the gain port determines the gain. FUNCTIONAL BLOCK DIAGRAM A1 A0 DGND WR AD8250 +VS –VS REF OUT +IN LOGIC –IN 1 10 8 3 7 4 5 6 2 9 Figure 1. 25 –10 –5 0 5 10 15 20 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) G = 10 G = 5 G = 2 G = 1 Figure 2. Gain vs. Frequency Table 1. Instrumentation Amplifiers by Category General Purpose Zero Drift Mil Grade Low Power High Speed PGA AD82201 AD82311 AD620 AD6271 AD8250 AD8221 AD85531 AD621 AD6231 AD8251 AD8222 AD85551 AD524 AD82231 AD8253 AD82241 AD85561 AD526 AD8228 AD85571 AD624 1 Rail-to-rail output. The AD8250 is available in a 10-lead MSOP package and is specified over the −40°C to +85°C temperature range, making it an excellent solution for applications where size and packing density are important considerations. |
类似零件编号 - AD8250ARMZ-R7 |
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类似说明 - AD8250ARMZ-R7 |
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