Overview
The AD7709ARUZ is a 16-bit sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed as a complete analog front-end for low-frequency measurement applications. It features a programmable gain amplifier (PGA) and can be configured to support either two fully-differential input channels or four pseudo-differential input channels. The AD7709ARUZ is capable of directly converting input signals ranging from 20mV to 2.56V without the need for additional signal conditioning, making it suitable for use with transducers.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD7709ARUZ |
| Manufacturer | Analog Devices Inc. |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Number of Bits | 16 |
| Number of A/D Converters | 1 |
| Number of Inputs | 2, 4 |
| Input Type | Differential, Pseudo-Differential |
| Sampling Rate (Per Second) | 105 sps |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7V ~ 3.3V, 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.3V, 5V |
| Operating Temperature | -40°C ~ 85°C |
| Data Interface | SPI, DSP |
| Architecture | Sigma-Delta |
| Features | PGA, Current Sources, Switchable Reference Inputs, Digital I/O Port |
Key Features
- Programmable Gain Amplifier (PGA): Allows for flexible gain settings to accommodate various input signal ranges.
- Switchable Reference Inputs: Enables the use of different reference voltages for increased flexibility.
- Current Sources: Includes three software-configurable current sources for additional functionality.
- Digital I/O Port: A 4-bit digital I/O port for communication and control.
- Low Side Power Switches: Integrated power switches for managing power to external devices.
- Sigma-Delta Conversion Technique: Ensures up to 16 bits of no missing codes performance.
Applications
The AD7709ARUZ is particularly suited for low-frequency measurement applications, such as those found in industrial control systems, medical devices, and data acquisition systems. It is ideal for use with transducers and can directly convert low-level input signals without additional signal conditioning.
Q & A
- What is the resolution of the AD7709ARUZ ADC?
The AD7709ARUZ has a resolution of 16 bits. - What types of input channels can the AD7709ARUZ support?
The AD7709ARUZ can be configured to support either two fully-differential input channels or four pseudo-differential input channels. - What is the sampling rate of the AD7709ARUZ?
The sampling rate of the AD7709ARUZ is 105 samples per second (sps). - What is the operating temperature range of the AD7709ARUZ?
The operating temperature range is -40°C to 85°C. - What data interfaces does the AD7709ARUZ support?
The AD7709ARUZ supports SPI and DSP data interfaces. - Does the AD7709ARUZ have built-in current sources?
Yes, the AD7709ARUZ includes three software-configurable current sources. - Can the AD7709ARUZ directly convert signals from transducers?
Yes, the AD7709ARUZ can directly convert input signals ranging from 20mV to 2.56V without the need for additional signal conditioning. - What is the package type of the AD7709ARUZ?
The package type is 24-TSSOP (0.173", 4.40mm Width). - Does the AD7709ARUZ have a digital I/O port?
Yes, it includes a 4-bit digital I/O port. - What is the architecture of the AD7709ARUZ ADC?
The architecture is sigma-delta.
