AD7091RBRMZ-RL7

1 MSPS ，超低功耗， 12位ADC，采用10引脚LFCSP封装和MSOP 1 MSPS, Ultralow Power, 12-Bit ADC in 10-Lead LFCSP and MSOP

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**

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Battery-powered systems

– Handheld meters

– Medical instruments

– Mobile communications

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Instrumentation and control systems

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Data acquisition systems

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Optical sensors

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Diagnostic/monitoring functions

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Energy harvesting

### Features and Benefits

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Fast throughput rate of 1 MSPS

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Specified for VDD of 2.7 V to 5.25 V

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Logic voltage VDRIVE of 1.65 V to 5.25 V

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INL of ±1 LSB maximum

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Analog input range of 0 V to VREF

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Ultralow power

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349 µA typical at 3 V and 1 MSPS

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264 nA typical at 3 V in power-down mode

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Internal 2.5 V reference, ±4.5 ppm/°C typical drift

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Wide input bandwidth

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Flexible power/throughput rate management

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High speed serial interface

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SPI®/QSPI™/MICROWIRE™/DSP compatible

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BUSY indicator

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Power-down mode

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10-lead, 3 mm × 2 mm LFCSP and 10-lead MSOP packages

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Temperature range of −40°C to +125°C