Overview
The AD7730BRU-REEL, produced by Analog Devices Inc., is a comprehensive analog front end designed specifically for weigh-scale and pressure measurement applications. This device is part of the AD7730 series, which includes various package options such as 24-pin plastic DIP, 24-lead SOIC, and 24-lead TSSOP. The AD7730BRU-REEL is packaged in a 24-lead TSSOP and is optimized for low-level signal processing directly from transducers.
The AD7730 series features a proprietary programmable gain front end, a sigma-delta modulator, and a serial interface compatible with microcontrollers and digital signal processors. It also includes self-calibration and system calibration options, ensuring high accuracy and stability over a wide temperature range.
Key Specifications
| Parameter | Value | Conditions/Comments |
|---|---|---|
| Bits | 24 | |
| Number of Channels | 2 | |
| Data Output Interface | Serial SPI | |
| Device Architecture | Sigma-Delta | |
| Input Type | Differential, Single-Ended | |
| Operating Temperature Range, °C | -40 to 85 | |
| Power (typ), mW | 125 | |
| Sample Rate (max), SPS | 1.2k | |
| Vin Range (typ), V p-p | 0.16 | |
| Vref Source | External | |
| Package | 24-lead TSSOP |
Key Features
- Complete analog front end for weigh-scale and pressure measurement applications.
- Accepts low-level signals directly from transducers.
- Proprietary programmable gain front end.
- Sigma-delta modulator for high accuracy and low noise.
- Serial SPI interface compatible with microcontrollers and digital signal processors.
- Self-calibration and system calibration options.
- FASTStep™ mode for AC or DC excitation.
- Single supply operation.
- Low power consumption with a standby mode reducing power to 5 μA.
- High stability with offset drift of less than 5 nV/°C and gain drift of less than 2 ppm/°C.
Applications
- Weigh scales.
- Pressure measurement systems.
- Load cell applications.
- Industrial automation and control systems.
- Medical devices requiring precise measurement of low-level signals.
Q & A
- What is the primary application of the AD7730BRU-REEL?
The primary application of the AD7730BRU-REEL is in weigh-scale and pressure measurement systems.
- What type of analog-to-digital converter is used in the AD7730BRU-REEL?
The AD7730BRU-REEL uses a sigma-delta modulator.
- What is the resolution of the AD7730BRU-REEL?
The resolution of the AD7730BRU-REEL is 24 bits.
- How many channels does the AD7730BRU-REEL support?
The AD7730BRU-REEL supports 2 channels.
- What is the operating temperature range of the AD7730BRU-REEL?
The operating temperature range is -40°C to 85°C.
- What is the typical power consumption of the AD7730BRU-REEL?
The typical power consumption is 125 mW.
- What is the maximum sample rate of the AD7730BRU-REEL?
The maximum sample rate is 1.2 kSPS.
- Does the AD7730BRU-REEL support self-calibration?
Yes, the AD7730BRU-REEL supports self-calibration and system calibration options.
- What type of package is the AD7730BRU-REEL available in?
The AD7730BRU-REEL is available in a 24-lead TSSOP package.
- Is the AD7730BRU-REEL RoHS compliant?
Yes, the AD7730BRU-REEL is RoHS compliant.
