Overview
The AD7991YRJZ-1500RL7 is a 12-bit, low-power, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 2.7 V to 5.5 V power supply and features an I2C-compatible serial interface. It is designed for applications requiring high accuracy and low power consumption, making it suitable for a variety of systems including system monitoring, battery-powered systems, data acquisition, and medical instruments.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Power Supply | 2.7 V to 5.5 V |
| Conversion Time | 1 μs |
| Input Frequency | Up to 14 MHz |
| Interface | I2C-compatible (standard, fast, and high speed modes) |
| Package | 8-Lead SOT-23 |
| Temperature Range | −40°C to +125°C |
| Shutdown Current | 1 μA maximum |
| Analog Input Range | 0 V to VDD (or external VREF) |
| Input Capacitance | 34 pF (during acquisition phase), 4 pF (outside acquisition phase) |
| Reference Input Voltage Range | 1.2 V to VDD |
Key Features
- Low power consumption with a shutdown mode of 1 μA maximum.
- I2C-compatible serial interface supporting standard, fast, and high speed modes.
- Two versions available, each with an individual I2C address, allowing two devices to be connected to the same I2C bus.
- Multiplexer allowing samples from four analog input channels.
- Track-and-hold amplifier capable of handling input frequencies up to 14 MHz.
- Qualified for automotive applications.
Applications
- System monitoring.
- Battery-powered systems.
- Data acquisition.
- Medical instruments.
- Automotive applications.
Q & A
- What is the resolution of the AD7991YRJZ-1500RL7 ADC?
The AD7991YRJZ-1500RL7 has a resolution of 12 bits. - What is the operating voltage range of the AD7991YRJZ-1500RL7?
The operating voltage range is from 2.7 V to 5.5 V. - What type of interface does the AD7991YRJZ-1500RL7 use?
The AD7991YRJZ-1500RL7 uses an I2C-compatible serial interface. - How many analog input channels does the AD7991YRJZ-1500RL7 support?
The AD7991YRJZ-1500RL7 supports four analog input channels. - What is the maximum input frequency the track-and-hold amplifier can handle?
The track-and-hold amplifier can handle input frequencies up to 14 MHz. - What is the shutdown current of the AD7991YRJZ-1500RL7?
The shutdown current is 1 μA maximum. - Is the AD7991YRJZ-1500RL7 qualified for automotive applications?
Yes, the AD7991YRJZ-1500RL7 is qualified for automotive applications. - What is the temperature range of the AD7991YRJZ-1500RL7?
The temperature range is from −40°C to +125°C. - Can multiple AD7991YRJZ-1500RL7 devices be connected to the same I2C bus?
Yes, two devices can be connected to the same I2C bus due to their individual I2C addresses. - What is the conversion time of the AD7991YRJZ-1500RL7?
The conversion time is 1 μs.
