AD7091R Analog-to-Digital Converter

By Analog Devices Inc 101

AD7091R Analog-to-Digital Converter

ADI's AD7091R is a 12-bit successive approximation analog-to-digital converter (ADC) that offers ultra-low power consumption (typically 349 µA at 3 V and 1 MSPS) while achieving fast throughput rates (1 MSPS with a 50 MHz SCLK). The AD7091R uses advanced design and process techniques to achieve this very low power dissipation at high throughput rates. The part also features an accurate on-chip 2.5 V reference.

Operating from a single 2.7 V to 5.25 V power supply, the part contains a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 7 MHz. The AD7091R also features an on-chip conversion clock and high speed serial interface. The conversion process and data acquisition are controlled using a CONVST signal and an internal oscillator. The AD7091 is ideal for low power consumption applications such as battery systems. Handheld meters and mobile communications.

Features
  • Voltage supply analog: 2 V to 5.25 V, 2.7 V to 5.25 V
  • Voltage supply digital: 2 V to 5.25 V, 2.7 V to 5.25 V
  • Data inteface: I²C, SPI, DSP
  • Number of inputs: 1, 4
  • Samping rate: 22.22 k, 1 M
  • Temperature operating range: -40°C to +125°C
Applications
  • Battery-powered systems
  • Handheld meters
  • Medical instruments
  • Data acquisition systems
  • Optical sensors
  • Instrumentation and control systems
  • Diagnostic/monitoring functions
  • Energy harvesting
  • Mobile communications

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