Product Details
●The AD7091R is a 12-bit successive approximation analog-to-digital converter (ADC) that offers ultralow power consumption (typically 349 µA at 3 V and 1 MSPS) while achieving fast throughput rates (1 MSPS with a 50 MHz SCLK). 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, accurate reference, and high speed serial interface.
●The conversion process and data acquisition are controlled using a CONVST signal and an internal oscillator. The AD7091R has a serial interface that allows data to be read after the conversion while achieving a 1 MSPS throughput rate.
●The AD7091R uses advanced design and process techniques to achieve very low power dissipation at high throughput rates. An on-chip, accurate 2.5 V reference is available
●Product Highlights
● 1. Lowest Power 12-Bit SAR ADC Available.
● 2. On-Chip, Accurate 2.5 V Reference.
● 3. High Throughput Rate with Ultralow Power Consumption.
● 4. Flexible Power/Throughput Rate Management. Average power scales with the throughput rate. Power-down mode allows the average power consumption to be reduced when the device is not performing a conversion.
● 5. Single Supply Operation with VDRIVE Function. The AD7091R operates from a single 2.7 V to 5.25 V supply. The VDRIVE function allows the serial interface to connect directly to 1.8 V to 3.3 V processors.
●Applications
● Battery-powered systems
●– Handheld meters
●– Medical instruments
●– Mobile communications
● Instrumentation and control systems
● Data acquisition systems
● Optical sensors
● Diagnostic/monitoring functions
● Energy harvesting
●### Features and Benefits
● Fast throughput rate of 1 MSPS
● Specified for VDD of 2.7 V to 5.25 V
● Logic voltage VDRIVE of 1.65 V to 5.25 V
● INL of ±1 LSB maximum
● Analog input range of 0 V to VREF
● Ultralow power
● 349 µA typical at 3 V and 1 MSPS
● 264 nA typical at 3 V in power-down mode
● Internal 2.5 V reference, ±4.5 ppm/°C typical drift
● Wide input bandwidth
● Flexible power/throughput rate management
● High speed serial interface
● SPI®/QSPI™/MICROWIRE™/DSP compatible
● BUSY indicator
● Power-down mode
● 10-lead, 3 mm × 2 mm LFCSP and 10-lead MSOP packages
● Temperature range of −40°C to +125°C
