Overview
The AD7091R-5BRUZ 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 notable for its low power consumption, typically 24 µA at a 3 V supply in fast mode. The AD7091R-5BRUZ features a 2-wire serial interface compatible with I2C interfaces, allowing for flexible control over the conversion process through sample mode, autocycle mode, or command mode via I2C write operations.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Conversion Time | 550 | - | - | ns |
| Update Rate (Autocycle Setting 00) | 90 | 100 | 110 | μs |
| Update Rate (Autocycle Setting 01) | 180 | 200 | 220 | μs |
| Update Rate (Autocycle Setting 10) | 360 | 400 | 440 | μs |
| Update Rate (Autocycle Setting 11) | 720 | 800 | 880 | μs |
| Throughput Rate (fSCL = 400 kHz, command mode) | - | 22.22 | - | kSPS |
| VDD Range | 2.7 | - | 5.25 | V |
| VDRIVE Range | 1.8 | - | 5.25 | V |
| IDD (Normal Mode, Static, VDD = 5.25 V) | 22 | - | 50 | μA |
| IDD (Normal Mode, Operational, VDD = 5.25 V, fSCL = 400 kHz) | 26 | - | - | μA |
Key Features
- Ultra-low power consumption: Typically 24 µA at 3 V supply in fast mode.
- 2-wire serial interface compatible with I2C interfaces.
- Four single-ended analog input channels with a channel sequencer for sequential conversions.
- 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.
- Flexible power management options and on-chip configuration register for setting various operating conditions.
- MUXOUT and ADCIN pins for signal conditioning of the multiplexer output before acquisition by the ADC.
Applications
The AD7091R-5BRUZ is suitable for a variety of applications that require low power and high precision analog-to-digital conversion. These include:
- Battery-powered devices and portable electronics.
- Medical devices and healthcare equipment.
- Industrial automation and control systems.
- Sensor networks and IoT devices.
- Automotive and aerospace systems where low power and reliability are critical.
Q & A
- What is the resolution of the AD7091R-5BRUZ ADC?
The AD7091R-5BRUZ is a 12-bit analog-to-digital converter.
- What is the power supply range for the AD7091R-5BRUZ?
The device operates from a single 2.7 V to 5.25 V power supply.
- How many analog input channels does the AD7091R-5BRUZ have?
The device has four single-ended analog input channels.
- What is the typical power consumption of the AD7091R-5BRUZ at 3 V supply in fast mode?
The typical power consumption is 24 µA.
- What type of serial interface does the AD7091R-5BRUZ support?
The device supports a 2-wire serial interface compatible with I2C interfaces.
- 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.
- Does the AD7091R-5BRUZ have an on-chip conversion clock and reference voltage?
Yes, it features an on-chip conversion clock and an accurate 2.5 V reference.
- Can the AD7091R-5BRUZ be configured for different operating conditions?
Yes, an on-chip configuration register allows for setting various operating conditions.
- What types of packages are available for the AD7091R-5BRUZ?
The device is available in 20-Lead LFCSP and 20-Lead TSSOP packages.
- Is there an evaluation board available for the AD7091R-5BRUZ?
Yes, the EVAL-AD7091R-5SDZ evaluation board is available for evaluating the features of the AD7091R-5 ADC.
