Overview
The AD7817BRZ from Analog Devices Inc. is a 10-bit, single-channel analog-to-digital converter (ADC) with an integrated on-chip temperature sensor. This device operates from a single power supply ranging from 2.7 V to 5.5 V, making it versatile for various applications. The AD7817BRZ features a successive approximation converter based on a capacitor digital-to-analog converter (DAC), inherent track-and-hold functionality, and an on-chip reference voltage of 2.5 V. The temperature sensor provides an accuracy of ±2.25°C (±3°C) over the operating temperature range, making it suitable for precise temperature monitoring in different environments.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7817BRZ |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Number of Pins | 16 |
| Resolution | 10 bits |
| Sampling Rate | Up to 100 kSPS |
| Polarity | Unipolar |
| Interface | SPI, Serial |
| Integral Nonlinearity (INL) | 1 LSB |
| Differential Nonlinearity (DNL) | 1 LSB |
| Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature | -55°C to 125°C |
| Temperature Accuracy | ±2.25°C (±3°C) |
Key Features
- On-chip temperature sensor with ±2.25°C (±3°C) accuracy.
- Single-channel 10-bit ADC with successive approximation converter based on a capacitor DAC.
- Inherent track-and-hold functionality.
- On-chip reference voltage of 2.5 V ± 1%.
- Automatic power-down feature for low power operation (e.g., 40 μW at 1 kSPS throughput rate).
- Flexible serial interface (SPI).
- Overtemperature indicator for monitoring temperature thresholds.
Applications
- Data acquisition systems with ambient temperature monitoring.
- Industrial process control.
- Automotive applications.
- Battery charging systems.
Q & A
- What is the resolution of the AD7817BRZ ADC?
The AD7817BRZ has a resolution of 10 bits.
- What is the operating supply voltage range for the AD7817BRZ?
The operating supply voltage range is from 2.7 V to 5.5 V.
- What type of interface does the AD7817BRZ use?
The AD7817BRZ uses an SPI (Serial Peripheral Interface) for communication.
- What is the accuracy of the on-chip temperature sensor?
The on-chip temperature sensor has an accuracy of ±2.25°C (±3°C).
- What are the key applications of the AD7817BRZ?
The AD7817BRZ is used in data acquisition systems, industrial process control, automotive applications, and battery charging systems.
- Does the AD7817BRZ have an automatic power-down feature?
Yes, the AD7817BRZ has an automatic power-down feature to achieve low power operation at slower throughput rates.
- What is the package type of the AD7817BRZ?
The AD7817BRZ comes in a 16-SOIC (0.154", 3.90mm Width) package.
- What is the maximum sampling rate of the AD7817BRZ?
The maximum sampling rate is up to 100 kSPS.
- Does the AD7817BRZ have inherent track-and-hold functionality?
Yes, the AD7817BRZ has inherent track-and-hold functionality.
- What is the operating temperature range of the AD7817BRZ?
The operating temperature range is from -55°C to 125°C.
