Overview
The AD7091R-2BRUZ is a multichannel 12-bit, ultralow power, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7091R family, which includes options for two, four, or eight analog input channels. The AD7091R-2 operates from a single 2.7 V to 5.25 V power supply and is capable of achieving a sampling rate of 1 MSPS. It 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 |
| 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: Adjustable power settings to balance between power consumption and throughput rate.
- High Performance: Achieves 1 MSPS throughput with no latency or pipeline delay, and offers high SNR, low THD, and low INL.
- 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 Applications: Includes alert functionality, busy indication, and general-purpose output pins.
- Wide Operating Range: Operates over a temperature range of -40°C to +125°C.
Applications
- Instrumentation and Control Systems: Suitable for precision measurement and control applications.
- Data Acquisition Systems: Ideal for high-speed data acquisition with low power consumption.
- Optical Sensors: Can be used in optical sensing applications requiring high accuracy and low noise.
- Diagnostic/Monitoring Functions: Useful in various diagnostic and monitoring systems where precision and reliability are crucial.
Q & A
- What is the resolution of the AD7091R-2 ADC?
The AD7091R-2 has a 12-bit resolution.
- What is the maximum 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.
- How much power does the AD7091R-2 consume in normal mode?
In normal mode, the AD7091R-2 consumes approximately 1.4 mW at 1 MSPS.
- What is the typical power consumption in power-down mode?
In power-down mode, the typical power consumption is 550 nA at VDD = 5.25 V and 435 nA at VDD = 3 V.
- What is the signal-to-noise ratio (SNR) of the AD7091R-2?
The SNR is typically 70 dB at a 10 kHz input frequency.
- What is the total harmonic distortion (THD) of the AD7091R-2?
The THD is typically -80 dB at a 10 kHz input frequency.
- What is the integral nonlinearity (INL) of the AD7091R-2?
The INL is typically ±0.7 LSB and a maximum of ±1.0 LSB.
- What is the operating temperature range of the AD7091R-2?
The operating temperature range is -40°C to +125°C.
- What type of package does the AD7091R-2 come in?
The AD7091R-2 comes in a 16-lead TSSOP package.
