Overview
The AD7720BRU-REEL7, produced by Analog Devices Inc., is a high-performance, 16-bit sigma-delta modulator integrated circuit. This device is designed to convert analog input signals into a high-speed 1-bit data stream, making it suitable for precision measurement and data acquisition applications. The AD7720 operates from a single +5 V supply and features a 7th order sigma-delta modulator, ensuring high resolution and accuracy in converting analog signals.
Key Specifications
| Parameter | Value | Units | Test Conditions |
|---|---|---|---|
| Resolution | 16 Bits | - | - |
| Differential Nonlinearity | ±1 LSB max | - | Guaranteed Monotonic |
| Integral Nonlinearity | ±2 LSB typ | - | - |
| Precalibration Offset Error | ±6 mV typ | - | - |
| Precalibration Gain Error | ±0.6 % FSR typ | - | - |
| Postcalibration Offset Error | ±1.5 mV typ | - | - |
| Postcalibration Gain Error | ±0.3 % FSR typ | - | - |
| Supply Voltage | +5 V ± 5% | V | - |
| Operating Temperature | -40°C to +85°C | °C | - |
| Package Type | 28-Lead TSSOP | - | - |
| Sampling Rate | 12.5 MHz | Hz | - |
| Data Interface | SPI | - | - |
Key Features
- High Resolution: 16-bit sigma-delta modulator providing high accuracy in analog-to-digital conversion.
- Single Supply Operation: Operates from a single +5 V supply, simplifying system design.
- Low Power Consumption: Efficient power management suitable for battery-powered devices.
- On-Chip Reference: Includes an on-chip +2.5 V bandgap reference and a reference buffer circuit for stable operation.
- SPI Data Interface: Serial Peripheral Interface (SPI) for easy communication with microcontrollers and other digital systems.
- Wide Operating Temperature Range: Functional from -40°C to +85°C, making it suitable for various environmental conditions.
Applications
- Precision Measurement Systems: Ideal for applications requiring high accuracy and resolution, such as industrial measurement, medical devices, and scientific instruments.
- Data Acquisition Systems: Suitable for data acquisition boards and systems that require precise analog-to-digital conversion.
- Industrial Automation: Used in control systems, sensors, and other automation equipment where precise signal conversion is necessary.
- Medical Devices: Applicable in medical equipment such as ECGs, blood pressure monitors, and other diagnostic devices.
Q & A
- What is the resolution of the AD7720BRU-REEL7?
The AD7720BRU-REEL7 has a resolution of 16 bits.
- What is the operating supply voltage for the AD7720BRU-REEL7?
The device operates from a single +5 V supply.
- What is the data interface type of the AD7720BRU-REEL7?
The data interface is SPI (Serial Peripheral Interface).
- What is the operating temperature range of the AD7720BRU-REEL7?
The device operates from -40°C to +85°C.
- Does the AD7720BRU-REEL7 have an on-chip reference?
Yes, it includes an on-chip +2.5 V bandgap reference and a reference buffer circuit.
- What is the package type of the AD7720BRU-REEL7?
The device is packaged in a 28-Lead TSSOP.
- What is the sampling rate of the AD7720BRU-REEL7?
The sampling rate is 12.5 MHz.
- Is the AD7720BRU-REEL7 suitable for industrial automation applications?
Yes, it is suitable for industrial automation due to its high accuracy and robust operating temperature range.
- Can the AD7720BRU-REEL7 be used in medical devices?
Yes, it can be used in medical devices such as ECGs and blood pressure monitors due to its high resolution and accuracy.
- What type of modulator is used in the AD7720BRU-REEL7?
The device uses a 7th order sigma-delta modulator.
