AD7091RBRMZ

• Product introduction

AD7091RBRMZ

The AD7091R is a 12-bit successive approximationAnalog-to-digital converters(ADC) for ultra-low power consumption (349 μA typical at 3V and 1 MSPS) at high throughput rates (1 MSPS at 50 MHz SCLK). It uses advanced design and signal processing techniques to achieve very low power consumption at high throughput rates. The device also provides an accurate on-chip reference voltage of 2.5 V.

 

The AD7091R operates from a single 2.7 V to 5.25 V supply and contains a wide bandwidth track-and-hold amplifier that can handle input frequencies above 7 MHz. It also features an on-chip conversion clock and a high-speed serial interface. The conversion process and data acquisition are controlled using CONVST signals and an internal oscillator.

Product features

Low power consumption:
• The lowest power 12-bit SAR ADC available, br>349 μA typical at 3 V and 1 MSPS
264 nA typical in 3 V shutdown mode
• Flexible power/throughput rate management
The average power consumption is proportional to the throughput rate
Shutdown mode reduces average power consumption during intermittent or single-shot conversion

Precision:
• The integral nonlinearity (INL) maximum is ±1 LSB
Flexibility:
• Single-supply operation using separate VDRIVE pins. The AD7091R operates from a single 2.7 V to 5.25 V supply. The VDRIVE feature allows the serial SPI® interface to be independently and directly connected to a 1.8 V to 5 V processor
• The on-chip accurate 2.5 V reference can also be overdriven with an external 2.7 V to 5.25 V reference
• −40°C to +125°C temperature range for a wide range of end markets
Small package:
• Available in a 2mm x 3mm 10-pin LFCSP package, an alternative to the leaded MSOP package is available
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Instrumentation and measurement
• Battery and USB power supply system

Data acquisition system
Handheld meters
• Field instrumentation
Consumer electronics
• Battery-powered devices
correspondence
• Fiber optic systems
• Mobile communications
medical
• Battery-powered medical instruments
ECG with heart rate monitor