Overview
The AD7992BRMZ-1REEL, produced by Analog Devices Inc., is a 12-bit, low power, successive approximation Analog-to-Digital Converter (ADC) with an I2C-compatible interface. This component operates from a single 2.7 V to 5.5 V power supply and features a fast conversion time of 2 µs. It includes a 2-channel multiplexer and track-and-hold amplifier capable of handling input frequencies up to 11 MHz. The AD7992 is available in two versions, AD7992-0 and AD7992-1, with the latter supporting standard, fast, and high speed I2C interface modes. The device is designed for power efficiency, entering a shutdown state when not converting, with a maximum current consumption of 1 µA at 3 V.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of Channels | 2 |
| Conversion Time | 2 µs |
| Power Supply Range | 2.7 V to 5.5 V |
| Input Frequency Range | Up to 11 MHz |
| I2C Interface Modes | Standard, Fast, High Speed (AD7992-1) |
| Shutdown Current | 1 µA max at 3 V |
| Package Type | 10-Lead MSOP |
| Operating Temperature Range | -40°C to +125°C |
| Reference Voltage Range | 1.2 V to VDD |
Key Features
- I2C-compatible serial interface with pin-selectable addresses, allowing up to five devices on the same serial bus.
- Automatic shutdown mode to maximize power efficiency.
- Out-of-range indicator/alert function that can be software enabled or disabled.
- One-shot and automatic conversion rates controlled via the CONVST pin or I2C write operations.
- Registers to store minimum and maximum conversion results.
- External reference input range from 1.2 V to VDD.
- On-chip limit registers programmable with high and low limits for conversion results.
Applications
The AD7992BRMZ-1REEL is suitable for a variety of applications requiring precise and efficient analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices requiring low power consumption and high accuracy.
- Aerospace and defense systems where reliability and precision are critical.
- Automotive systems, particularly those needing robust and efficient data conversion.
- Embedded systems and IoT devices that require low power and compact design.
Q & A
- What is the conversion time of the AD7992BRMZ-1REEL?
The conversion time of the AD7992BRMZ-1REEL is 2 µs. - What are the supported I2C interface modes for the AD7992-1 version?
The AD7992-1 version supports standard, fast, and high speed I2C interface modes. - What is the power supply range for the AD7992BRMZ-1REEL?
The power supply range is from 2.7 V to 5.5 V. - How many channels does the AD7992BRMZ-1REEL have?
The AD7992BRMZ-1REEL has 2 channels. - What is the maximum current consumption in shutdown mode at 3 V?
The maximum current consumption in shutdown mode at 3 V is 1 µA. - Can the AD7992BRMZ-1REEL handle high input frequencies?
Yes, it can handle input frequencies up to 11 MHz. - What is the purpose of the ALERT output?
The ALERT output is an out-of-range indicator that becomes active when the conversion result violates the programmed high or low limits. - How many devices can be connected to the same serial bus?
Up to five devices can be connected to the same serial bus due to pin-selectable addresses. - What is the operating temperature range of the AD7992BRMZ-1REEL?
The operating temperature range is -40°C to +125°C. - Is there an evaluation board available for the AD7992?
Yes, the EVAL-AD7992EBZ is a fully featured evaluation board available for the AD7992.
