Overview
The AD7091RBCPZ-RL is a 12-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is renowned for its ultralow power consumption and high throughput rates, making it an ideal choice for various applications requiring precise and efficient data conversion.
Operating from a single power supply in the range of 2.7 V to 5.25 V, the AD7091R features a wide bandwidth track-and-hold amplifier capable of handling input frequencies in excess of 7 MHz. It includes an on-chip conversion clock, an accurate 2.5 V reference, and a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Throughput Rate | 1 MSPS with a 50 MHz SCLK |
| Power Consumption | Typically 349 µA at 3 V and 1 MSPS, 264 nA in power-down mode |
| Power Supply Range | 2.7 V to 5.25 V |
| Input Frequency Range | Exceeds 7 MHz |
| Reference Voltage | On-chip, accurate 2.5 V reference, ±4.5 ppm/°C typical drift |
| Package Type | 10-Lead LFCSP (2mm x 3mm w/ EP) and 10-Lead MSOP |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Ultralow power consumption with high throughput rates, making it suitable for battery-powered systems and energy harvesting applications.
- On-chip, accurate 2.5 V reference with low drift (±4.5 ppm/°C).
- Flexible power/throughput rate management, allowing power consumption to scale with the throughput rate.
- Power-down mode to reduce power consumption when the device is not performing a conversion.
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
- Compact 10-lead LFCSP and MSOP packages, offering significant space-saving advantages.
Applications
- Battery-powered systems
- Handheld meters
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition systems
- Optical sensors
- Diagnostic/monitoring functions
- Energy harvesting
Q & A
- What is the resolution of the AD7091R ADC?
The AD7091R is a 12-bit successive approximation analog-to-digital converter.
- What is the typical power consumption of the AD7091R at 3 V and 1 MSPS?
The typical power consumption is 349 µA at 3 V and 1 MSPS.
- What is the input frequency range that the AD7091R can handle?
The AD7091R can handle input frequencies in excess of 7 MHz.
- What types of packages are available for the AD7091R?
The AD7091R is available in 10-lead LFCSP and 10-lead MSOP packages.
- What is the operating temperature range of the AD7091R?
The operating temperature range is −40°C to +125°C.
- Does the AD7091R have an on-chip reference voltage?
Yes, the AD7091R features an on-chip, accurate 2.5 V reference voltage.
- What serial interfaces is the AD7091R compatible with?
The AD7091R is compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
- Can the AD7091R be powered down to save power?
Yes, the AD7091R has a power-down mode to reduce power consumption when not performing a conversion.
- What are some common applications of the AD7091R?
Common applications include battery-powered systems, handheld meters, medical instruments, mobile communications, and data acquisition systems.
- Is there an evaluation board available for the AD7091R?
Yes, the EVAL-AD7091RSDZ is a fully featured evaluation kit available for the AD7091R.
