Overview
The AD7091R-2BCPZ is a multichannel, 12-bit, ultralow power, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high performance and low power consumption, making it suitable for a variety of applications requiring precise analog-to-digital conversion. The AD7091R-2 operates from a single 2.7 V to 5.25 V power supply and can achieve a sampling rate of 1 MSPS. It features up to eight single-ended analog input channels with a channel sequencer, allowing for sequential conversion of preprogrammed channels.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Throughput 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 |
| Reference Voltage | On-chip accurate 2.5 V reference, 5 ppm/°C typical drift |
| Package | 16-Lead LFCSP (4mm x 4mm) |
| Operating Temperature Range | −40°C to +125°C |
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
The AD7091R-2BCPZ is suitable for various applications requiring high-performance, low-power analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, especially those requiring high reliability and low power consumption.
- Consumer electronics, such as audio and video equipment.
Q & A
- What is the resolution of the AD7091R-2BCPZ ADC?
The AD7091R-2BCPZ has a resolution of 12 bits.
- What is the maximum throughput rate of the AD7091R-2BCPZ?
The maximum throughput rate is 1 MSPS.
- What is the power supply range for the AD7091R-2BCPZ?
The device operates from a single 2.7 V to 5.25 V power supply.
- How much power does the AD7091R-2BCPZ consume in normal mode?
In normal mode, it consumes 1.4 mW at 1 MSPS.
- What is the typical power consumption in power-down mode?
In power-down mode, it consumes 550 nA typical at VDD = 5.25 V and 435 nA typical at VDD = 3 V.
- What is the signal-to-noise ratio (SNR) of the AD7091R-2BCPZ?
The SNR is 70 dB typical at 10 kHz input frequency.
- What is the total harmonic distortion (THD) of the AD7091R-2BCPZ?
The THD is −80 dB typical at 10 kHz input frequency.
- What is the integral nonlinearity (INL) of the AD7091R-2BCPZ?
The INL is ±0.7 LSB typical and ±1.0 LSB maximum.
- What type of package does the AD7091R-2BCPZ come in?
The device comes in a 16-Lead LFCSP (4mm x 4mm) package.
- What is the operating temperature range of the AD7091R-2BCPZ?
The operating temperature range is −40°C to +125°C.
