Overview
The AD7783BRUZ-REEL7 is a 24-bit, sigma-delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high-precision data acquisition and is particularly suited for applications requiring low noise and high accuracy. The AD7783 features a single, fully differential input channel and operates from a 32.768 kHz crystal with an on-chip phase-locked loop (PLL) to generate the internal operating frequency. It is available in a 16-lead Thin Shrink Small Outline Package (TSSOP) and supports a wide operating temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD7783BRUZ-REEL7 |
| Manufacturer | Analog Devices Inc. |
| Package | 16-TSSOP (0.173", 4.40mm Width) |
| Number of Bits | 24 |
| Sampling Rate | 19.79 sps |
| Polarity | Bipolar |
| Interface | SPI |
| Min Supply Voltage | 2.7 V |
| Max Supply Voltage | 5.25 V |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- High Precision: The AD7783 offers 24-bit resolution, ensuring high accuracy in data acquisition applications.
- Sigma-Delta Conversion: Utilizes a sigma-delta conversion technique for low noise and high linearity.
- Fully Differential Input: Features a single, fully differential input channel suitable for direct connection to external resistive-type sensors such as strain gages or resistance temperature detectors (RTDs).
- Programmable Gain Amplifier: Includes a programmable gain amplifier to adjust the input signal range.
- Digital Filter: Incorporates a digital filter with notches at 50 Hz and 60 Hz for simultaneous rejection of these frequencies, enhancing noise rejection.
- SPI Interface: Supports a serial peripheral interface (SPI) for easy communication with microcontrollers.
Applications
- Industrial Automation: Suitable for precision measurement and control systems in industrial environments.
- Medical Devices: Used in medical equipment requiring high accuracy and low noise, such as patient monitoring systems.
- Test and Measurement: Ideal for precision test and measurement instruments, including multimeters and data loggers.
- Aerospace and Defense: Applied in various aerospace and defense applications where high precision and reliability are critical.
Q & A
- What is the resolution of the AD7783BRUZ-REEL7?
The AD7783BRUZ-REEL7 has a 24-bit resolution.
- What is the sampling rate of the AD7783BRUZ-REEL7?
The sampling rate is 19.79 samples per second (sps).
- What type of package does the AD7783BRUZ-REEL7 come in?
The device is packaged in a 16-lead Thin Shrink Small Outline Package (TSSOP).
- What is the operating temperature range of the AD7783BRUZ-REEL7?
The operating temperature range is -40°C to +85°C.
- Does the AD7783BRUZ-REEL7 have on-chip registers that need to be programmed?
No, the AD7783BRUZ-REEL7 does not have on-chip registers that need to be programmed. The input signal range and current source selection are configured using two external pins.
- What type of interface does the AD7783BRUZ-REEL7 use for communication?
The device uses a Serial Peripheral Interface (SPI) for communication.
- What is the minimum and maximum supply voltage for the AD7783BRUZ-REEL7?
The minimum supply voltage is 2.7 V, and the maximum supply voltage is 5.25 V.
- Does the AD7783BRUZ-REEL7 have built-in digital filtering capabilities?
Yes, the device includes a digital filter with notches at 50 Hz and 60 Hz for simultaneous rejection of these frequencies.
- What types of sensors can the AD7783BRUZ-REEL7 be connected to directly?
The device can be connected directly to external resistive-type sensors such as strain gages or resistance temperature detectors (RTDs).
- How is the output data rate of the AD7783BRUZ-REEL7 determined?
The output data rate is fixed via the master clock at 32.768 kHz and an on-chip PLL.
