Overview
The AD7091R-5BCPZ-RL7 is a 12-bit, multichannel, ultra-low power successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 2.7 V to 5.25 V power supply and is known for its low power consumption, typically 24 µA at a 3 V supply in fast mode. It features a 2-wire serial interface compatible with I2C interfaces and supports various conversion modes, including sample mode, autocycle mode, and command mode. The AD7091R-5 also includes an on-chip conversion clock, an accurate 2.5 V reference, and a programmable out-of-bounds user alert function.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Power Supply (VDD) | 2.7 | 5.25 | V | |
| Power Consumption (IDD) at VDD = 5.25 V, Normal Mode - Static | 22 | 50 | µA | |
| Power Consumption (IDD) at VDD = 3 V, Normal Mode - Static | 21.6 | 46 | µA | |
| Conversion Time | 550 | ns | ||
| Throughput Rate (fSCL = 400 kHz, command mode) | 22.22 | kSPS | ||
| Input Frequency Handling | Up to 1.5 MHz | |||
| Number of Analog Input Channels | 4 single-ended | |||
| Package | 20-Lead LFCSP (4mm x 4mm w/ EP) | |||
Key Features
- Ultra-low power consumption, typically 24 µA at 3 V supply in fast mode.
- 2-wire serial interface compatible with I2C interfaces.
- Supports sample mode, autocycle mode, and command mode for conversion control.
- On-chip conversion clock and accurate 2.5 V reference.
- Programmable out-of-bounds user alert function.
- Wide bandwidth track-and-hold amplifier capable of handling input frequencies up to 1.5 MHz.
- Channel sequencer for preprogrammed selection of channels to be converted sequentially.
- Flexible power management options and on-chip configuration register for setting operating conditions.
- MUXOUT and ADCIN pins for signal conditioning of the multiplexer output before acquisition by the ADC.
Applications
The AD7091R-5 is suitable for a variety of applications requiring low power and high precision analog-to-digital conversion. These include:
- Battery-powered devices and portable electronics.
- Medical devices, such as patient monitoring systems.
- Industrial control systems and automation.
- Sensor interfaces and data acquisition systems.
- Low-power embedded systems and IoT devices.
Q & A
- What is the resolution of the AD7091R-5 ADC?
The AD7091R-5 is a 12-bit analog-to-digital converter.
- What is the power supply range for the AD7091R-5?
The device operates from a single 2.7 V to 5.25 V power supply.
- How much power does the AD7091R-5 typically consume at 3 V supply in fast mode?
It typically consumes 24 µA at 3 V supply in fast mode.
- What type of serial interface does the AD7091R-5 support?
The AD7091R-5 supports a 2-wire serial interface compatible with I2C interfaces.
- What are the different conversion modes supported by the AD7091R-5?
The device supports sample mode, autocycle mode, and command mode for conversion control.
- What is the maximum input frequency that the track-and-hold amplifier can handle?
The track-and-hold amplifier can handle input frequencies up to 1.5 MHz.
- How many analog input channels does the AD7091R-5 have?
The device has four single-ended analog input channels.
- What is the package type of the AD7091R-5BCPZ-RL7?
The package is a 20-Lead LFCSP (4mm x 4mm w/ EP).
- What are some of the key applications for the AD7091R-5?
Key applications include battery-powered devices, medical devices, industrial control systems, sensor interfaces, and low-power embedded systems.
- Does the AD7091R-5 have any on-chip configuration options?
Yes, it has an on-chip configuration register that allows users to set up different operating conditions, including power management, alert functionality, and channel sequencing.
