Overview
The AD7091R-2BRUZ-RL7 is a multichannel 12-bit, ultralow power, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7091R family, which includes options for two, four, or eight analog input channels. The AD7091R-2 specifically offers two analog input channels. It operates from a single 2.7 V to 5.25 V power supply and is capable of achieving a sampling rate of 1 MSPS. The device features advanced design techniques to achieve ultralow power dissipation at high throughput rates, making it suitable for a variety of applications requiring high performance and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Analog Input Channels | Up to 2 (AD7091R-2) |
| Sampling Rate | 1 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Power Consumption (Normal Mode) | 1.4 mW at 1 MSPS |
| Power Consumption (Power-Down Mode) | 550 nA typical at VDD = 5.25 V, 435 nA typical at VDD = 3 V |
| Signal-to-Noise Ratio (SNR) | 70 dB typical at 10 kHz input frequency |
| Total Harmonic Distortion (THD) | −80 dB typical at 10 kHz input frequency |
| Integral Nonlinearity (INL) | ±0.7 LSB typical, ±1.0 LSB maximum |
| Operating Temperature Range | −40°C to +125°C |
| Package Type | 16-lead TSSOP |
Key Features
- Ultralow System Power: Low power consumption in both normal and power-down modes.
- Flexible Power/Throughput Rate Management: Allows for adjustable power and throughput rates.
- High Performance: Achieves 1 MSPS throughput with no latency or pipeline delay.
- Small System Footprint: On-chip accurate 2.5 V reference and MUX OUT/ADC IN pins for signal conditioning.
- Easy to Use: SPI/QSPI/MICROWIRE/DSP compatible digital interface and integrated programmable channel sequencer.
- Built-in Features for Control and Monitoring: Includes power management, alert functionality, busy indication, channel sequencing, and general-purpose output pins.
- Daisy-Chain Mode: Supports daisy-chain operation for multiple devices.
Applications
- Instrumentation and Control Systems: Suitable for precision measurement and control applications.
- Data Acquisition Systems: Ideal for high-speed data acquisition needs.
- Optical Sensors: Can be used in optical sensing applications requiring high accuracy.
- Diagnostic/Monitoring Functions: Useful in various diagnostic and monitoring systems.
Q & A
- What is the resolution of the AD7091R-2?
The AD7091R-2 has a resolution of 12 bits. - How many analog input channels does the AD7091R-2 offer?
The AD7091R-2 offers up to two analog input channels. - What is the sampling rate of the AD7091R-2?
The AD7091R-2 can achieve a sampling rate of 1 MSPS. - What is the power supply range for the AD7091R-2?
The AD7091R-2 operates from a single 2.7 V to 5.25 V power supply. - What is the typical power consumption of the AD7091R-2 in normal mode?
The typical power consumption in normal mode is 1.4 mW at 1 MSPS. - Does the AD7091R-2 support daisy-chain operation?
Yes, the AD7091R-2 supports daisy-chain mode for multiple devices. - What is the operating temperature range of the AD7091R-2?
The operating temperature range is −40°C to +125°C. - What type of digital interface does the AD7091R-2 use?
The AD7091R-2 uses an SPI/QSPI/MICROWIRE/DSP compatible digital interface. - Does the AD7091R-2 have an on-chip reference voltage?
Yes, the AD7091R-2 features an on-chip accurate 2.5 V reference. - What is the package type of the AD7091R-2?
The AD7091R-2 is available in a 16-lead TSSOP package.
