Overview
The AD7782BRU-REEL is a 24-bit, two-channel sigma-delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed as a complete analog front end for low-frequency measurement applications. It features two fully differential analog input channels and a simple, read-only digital interface. The AD7782 is suitable for various industrial and measurement applications due to its high precision and flexibility.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 24 |
| Number of Channels | 2 |
| Input Type | Differential |
| Sampling Rate (Per Second) | 19.79 |
| Data Interface | SPI, QSPI, MICROWIRE, DSP-Compatible |
| Configuration | MUX-PGA-ADC |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7 V ~ 3.6 V, 5 V |
| Voltage - Supply, Digital | 2.7 V ~ 3.6 V, 5 V |
| Package | 16-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C to +85°C |
Key Features
- High-resolution 24-bit sigma-delta ADC with two fully differential analog input channels.
- Configurable gain of 1 or 16, allowing full-scale input signal ranges of ±2.56 V or ±160 mV.
- Simple, read-only digital interface that can operate in master or slave mode without on-chip registers to program.
- Rail-Rail input buffer and PGA for enhanced signal handling.
- Low power consumption: 1.3 mA at 3 V in normal mode and 9 µA in power-down mode.
- Support for 3-wire serial SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.
Applications
- Sensor measurement and industrial process control.
- Temperature and pressure measurements.
- Weigh scales and portable instrumentation.
- Low-frequency measurement applications requiring high precision and reliability.
Q & A
- What is the resolution of the AD7782BRU-REEL ADC?
The AD7782BRU-REEL has a resolution of 24 bits.
- How many analog input channels does the AD7782BRU-REEL have?
The AD7782BRU-REEL has two fully differential analog input channels.
- What are the configurable gain options for the AD7782BRU-REEL?
The gain can be configured to 1 or 16.
- What is the operating temperature range of the AD7782BRU-REEL?
The operating temperature range is -40°C to +85°C.
- What types of digital interfaces does the AD7782BRU-REEL support?
The AD7782BRU-REEL supports SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.
- What is the power consumption of the AD7782BRU-REEL in normal mode?
The power consumption is 1.3 mA at 3 V in normal mode.
- What is the power consumption of the AD7782BRU-REEL in power-down mode?
The power consumption is 9 µA in power-down mode.
- What type of package does the AD7782BRU-REEL come in?
The AD7782BRU-REEL comes in a 16-TSSOP package.
- What are some common applications of the AD7782BRU-REEL?
Common applications include sensor measurement, industrial process control, temperature and pressure measurements, and weigh scales.
- Does the AD7782BRU-REEL require on-chip register programming?
No, the AD7782BRU-REEL does not require on-chip register programming.
