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ADI touts in-amp with gain of 1,000

Posted: 22 Aug 2007     Print Version  Bookmark and Share

Keywords:digitally programmable instrumentation amplifier  high gain count  in-amp 


Designed for DAQ systems, ATE and biomedical instruments requiring fast, accurate measurement with robust signal conditioning over large voltage ranges, Analog Devices Inc.'s AD8253 digitally programmable instrumentation amplifier can reach gains of 1,000 while offering DC precision and AC bandwidth unmatched by other in-amps or discrete solutions on the market. A large gain setting allows small signals, such as those from sensors, to be amplified to drive an ADC.

AD8253 is digitally programmable with gain settings of 1, 10, 100 and 1,000—allowing users adjust gain even after the devices are designed into the system. Operating from ±5V to ±15V, it achieves 10MHz bandwidth and 0.5µs settling time to 0.01 percent. The input offset drift of 1.2µV/°C and gain drift of 10ppm/°C is the lowest of any programmable gain in-amp. Manufactured using ADI's iCMOS (industrial CMOS) process technology, the AD8253 draws just 4mA of quiescent current and is available in 10-lead MSOP (mini small-outline plastic) packages.

AD8253 is the newest member of digitally programmable instrumentation amplifiers from ADI, complementing the AD8250 and AD8251. Moreover, the AD8253 is tailored to operate with high-performance ADCs.

AD8253 is sampling now in a 10-lead MSOP package with production quantities available in October. It is specified over the -40°C to 85°C temperature range, making it a suitable solution for applications where size and packaging density are important considerations. AD8253 is priced at Rs.200.22 ($4.95) per unit in 1,000-unit quantities.

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