The AD7091R-2/AD7091R-4/AD7091R-8 family are multichannel, 12-bit, ultralow power, successive approximationAnalog-to-digital converters(ADC) with 2/4/8 analog input channel options. The AD7091R-2/AD7091R-4/AD7091R-8 operate from a single 2.7 V to 5.25 V supply and sample rates up to 1 MSPS. The AD7091R-2/AD7091R-4/AD7091R-8 contain a wide bandwidth sample-and-holdamplifier, can handle input frequencies in excess of 1.5 MHz. The AD7091R-2/AD7091R-4/AD7091R-8 also feature an on-chip conversion clock, an on-chip precision 2.5 V reference, and a high speed serial interface.
The AD7091R-2/AD7091R-4/AD7091R-8 family has up to eight single-ended analog inputs with channel sequencers that can be preprogrammed to select the channel conversion sequence.
The AD7091R-2/AD7091R-4/AD7091R-8 have an integrated serial port interface (SPI) that reads data after conversion with a throughput rate of 1 MSPS. The conversion process and data acquisition are controlled using the CONVST pin.
The AD7091R-2/AD7091R-4/AD7091R-8 families use advanced design techniques to achieve very low power consumption at high throughput rates. Flexible power management options are also available. On-chip configuration registers allow the user to set different operating conditions. They include power management, alarm functions, busy indication, channel timing, and general-purpose output pins. The MUXOUT and ADCIN pins allow conditioning before the ADC acquires the output signal from the multiplexer.
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- Battery-powered system
- Personal digital assistant
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition system
- Photosensitive element
- Diagnostic/monitoring functions