Overview
The AD7991YRJZ-1RL is a 12-bit, 4-channel analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for high-performance data acquisition and features an I2C-compatible serial interface. It is particularly suited for applications requiring multiple analog input channels and efficient data conversion.
The AD7991YRJZ-1RL is packaged in an 8-pin SOT-23 package, making it compact and suitable for space-constrained designs. The device operates over a supply voltage range of 2.7V to 5.5V, ensuring flexibility in various system designs.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 bits | ||
| Number of Analog Input Channels | 4 | Single-ended or 3 single-ended and 1 reference input channel | |
| Sampling Rate | 140 kSPS | ||
| Supply Voltage Range | 2.7V to 5.5V | V | Both analog and digital supply voltage |
| Input Voltage Range | 0 V to VDD | V | When using VDD as the reference |
| Interface | I2C-compatible | Supports standard, fast, and high-speed modes | |
| Package Type | SOT-23-8 | ||
| Input Impedance | 69 kΩ | Ω | |
| DC Leakage Current | ±1 µA | A |
Key Features
- High-Resolution Conversion: The AD7991YRJZ-1RL offers 12-bit resolution, ensuring high accuracy in analog-to-digital conversion.
- Multiplexed Inputs: The device features a multiplexer that allows sampling from four single-ended analog input channels or three single-ended channels and one reference input channel.
- I2C-Compatible Interface: Supports standard, fast, and high-speed I2C interface modes, allowing for flexible integration into various systems.
- Low Power Consumption: The device normally remains in a shutdown state, powering up only for conversions, which helps in reducing power consumption.
- Compact Packaging: The SOT-23-8 package makes it suitable for space-constrained designs.
- Wide Dynamic Input Range: The analog input range is from 0 V to VDD, allowing for a wide range of input signals.
Applications
- Data Acquisition Systems: Ideal for applications requiring multiple analog input channels and high-speed data conversion.
- Industrial Automation: Suitable for monitoring and controlling various industrial processes.
- Medical Devices: Can be used in medical equipment that requires precise analog-to-digital conversion.
- Consumer Electronics: Applicable in consumer devices that need efficient and accurate data conversion.
- Aerospace and Defense: Used in systems that require high reliability and precision in data acquisition.
Q & A
- What is the resolution of the AD7991YRJZ-1RL?
The AD7991YRJZ-1RL has a 12-bit resolution.
- How many analog input channels does the AD7991YRJZ-1RL have?
The device has four single-ended analog input channels or can be configured as three single-ended channels and one reference input channel.
- What is the sampling rate of the AD7991YRJZ-1RL?
The sampling rate is 140 kSPS.
- What is the supply voltage range for the AD7991YRJZ-1RL?
The supply voltage range is from 2.7V to 5.5V.
- What type of interface does the AD7991YRJZ-1RL use?
The device uses an I2C-compatible serial interface.
- In what package is the AD7991YRJZ-1RL available?
The device is packaged in an 8-pin SOT-23 package.
- What is the input impedance of the AD7991YRJZ-1RL?
The input impedance is 69 kΩ.
- How does the AD7991YRJZ-1RL manage power consumption?
The device normally remains in a shutdown state, powering up only for conversions to reduce power consumption.
- What is the analog input voltage range for the AD7991YRJZ-1RL?
The analog input range is from 0 V to VDD.
- Can multiple AD7991YRJZ-1RL devices be connected to the same I2C bus?
Yes, multiple devices can be connected to the same I2C bus due to their unique I2C addresses.
