Overview
The AD7767BRUZ-RL7 is a high-performance, 24-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7767 series, which includes the AD7767, AD7767-1, and AD7767-2. The AD7767BRUZ-RL7 is designed for ultralow power data acquisition and is particularly suited for applications requiring high precision and low power consumption.
It operates from a 2.5 V supply and uses a 5 V reference, making it ideal for systems such as PCI- and USB-based data acquisition systems. The device features an oversampled successive approximation (SAR) architecture, which provides high ac and dc accuracy and a wide dynamic range.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Description | 24-Bit, 15 mW, 128 kSPS ADC |
| Number of Bits | 24 |
| Sampling Rate (Per Second) | 128 kSPS (AD7767), 64 kSPS (AD7767-1), 32 kSPS (AD7767-2) |
| Reference Type | External |
| Voltage - Supply, Analog/Digital | 2.5 V |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C to +105°C |
| Input Type | Differential |
| Data Interface | SPI |
| Power Consumption | 15 mW (AD7767), 10.5 mW (AD7767-1), 8.5 mW (AD7767-2) |
| Dynamic Range | 109.5 dB (AD7767), 112.5 dB (AD7767-1), 115.5 dB (AD7767-2) |
Key Features
- Oversampled SAR Architecture: Provides high ac and dc accuracy and a wide dynamic range.
- Low Power Consumption: Consumes 15 mW, 10.5 mW, and 8.5 mW for AD7767, AD7767-1, and AD7767-2 respectively.
- On-Board Digital Filter: Eliminates out-of-band noise and reduces front-end antialias requirements.
- Synchronization and Daisy Chaining: Features a SYNC/PD pin for synchronization and an SDI pin for daisy chaining multiple devices.
- High Linearity: Offers 18-bit linearity (3 ppm).
- Wide Operating Temperature Range: Operates from -40°C to +105°C.
Applications
The AD7767BRUZ-RL7 is ideal for various applications requiring high precision and low power consumption, such as:
- Ultralow Power Data Acquisition: Suitable for PCI- and USB-based systems.
- Measuring Small Signal Changes: Accurately measures small changes on larger ac or dc signals.
- Industrial Automation: Used in systems that require precise and reliable data acquisition.
- Medical Devices: Ideal for medical equipment that demands high accuracy and low noise.
- Aerospace and Defense: Suitable for applications requiring high reliability and precision.
Q & A
- What is the resolution of the AD7767BRUZ-RL7?
The AD7767BRUZ-RL7 has a 24-bit resolution.
- What are the different sampling rates available for the AD7767 series?
The AD7767 series offers sampling rates of 128 kSPS, 64 kSPS, and 32 kSPS for AD7767, AD7767-1, and AD7767-2 respectively.
- What is the power consumption of the AD7767BRUZ-RL7?
The power consumption is 15 mW for the AD7767, 10.5 mW for the AD7767-1, and 8.5 mW for the AD7767-2.
- What is the operating temperature range of the AD7767BRUZ-RL7?
The device operates from -40°C to +105°C.
- What type of input does the AD7767BRUZ-RL7 support?
The device supports differential inputs.
- How does the AD7767BRUZ-RL7 reduce out-of-band noise?
The device includes an on-board digital filter with a linear phase response to eliminate out-of-band noise.
- Can multiple AD7767 devices be synchronized?
Yes, the SYNC/PD pin allows for the synchronization of multiple AD7767 devices.
- What is the dynamic range of the AD7767 series?
The dynamic range is 109.5 dB for AD7767, 112.5 dB for AD7767-1, and 115.5 dB for AD7767-2.
- What is the package type of the AD7767BRUZ-RL7?
The device is packaged in a 16-TSSOP (0.173", 4.40mm Width).
- Is the AD7767BRUZ-RL7 RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
