Overview
The AD7999WYRJZ-1RL is a high-performance, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7991/AD7995/AD7999 family and is designed for a wide range of applications requiring precise analog-to-digital conversion. The AD7999 features a 2-wire serial interface compatible with I2C interfaces, supporting standard, fast, and high-speed modes. It operates in a low-power mode, powering up only for conversions, which makes it energy-efficient. The device includes a track-and-hold amplifier and a multiplexer, allowing it to handle input frequencies up to 14 MHz and sample from four analog input channels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 8 | |
| Sampling Rate | 140 kSPS | samples per second |
| Analog Input Voltage Range | 0 to VDD | V |
| Reference Input Voltage Range | 1.2 to VDD | V |
| Input Capacitance (Channels 0-2 during acquisition) | 3-4 pF | pF |
| Input Capacitance (Channels 0-2 outside acquisition) | 4 pF | pF |
| Input Capacitance (Channel 3 during acquisition) | 5 pF | pF |
| Input Capacitance (Channel 3 outside acquisition) | 5 pF | pF |
| DC Leakage Current | ±1 µA | µA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 8-Lead SOT-23 |
Key Features
- 8-bit analog-to-digital converter with a 2-wire serial interface compatible with I2C interfaces.
- Supports standard, fast, and high-speed I2C interface modes.
- Low-power operation with shutdown mode, powering up only for conversions.
- Track-and-hold amplifier allows handling of input frequencies up to 14 MHz.
- Multiplexer for sampling from four analog input channels.
- Reference input can be taken from VDD or an external reference applied through VIN3/VREF.
- Wide dynamic input range from 0 V to VDD.
Applications
The AD7999WYRJZ-1RL is suitable for various applications requiring precise and efficient analog-to-digital conversion, such as:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Automotive systems, including sensor interfaces and data acquisition.
- Consumer electronics, such as audio and video equipment.
Q & A
- What is the resolution of the AD7999WYRJZ-1RL?
The AD7999WYRJZ-1RL is an 8-bit analog-to-digital converter. - What is the sampling rate of the AD7999WYRJZ-1RL?
The sampling rate is 140 kSPS (kilosamples per second). - What is the operating temperature range of the AD7999WYRJZ-1RL?
The operating temperature range is -40°C to +125°C. - How many analog input channels does the AD7999WYRJZ-1RL support?
The device supports four analog input channels. - What types of I2C interface modes does the AD7999WYRJZ-1RL support?
The device supports standard, fast, and high-speed I2C interface modes. - Can the AD7999WYRJZ-1RL operate with an external reference voltage?
Yes, the device can operate with an external reference voltage applied through the VIN3/VREF input. - What is the package type of the AD7999WYRJZ-1RL?
The package type is an 8-Lead SOT-23. - How does the AD7999WYRJZ-1RL manage power consumption?
The device operates in a low-power mode, powering up only for conversions. - 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 14 MHz. - What is the typical DC leakage current of the analog inputs?
The typical DC leakage current is ±1 µA.
