ADS7949SRTER

Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-resolution ADC - Low power consumption - Serial interface - Small form factor

Package: SRTER (Small Outline Package, Tape and Reel)

Essence: The ADS7949SRTER is a high-performance analog-to-digital converter designed for various applications that require accurate and fast conversion of analog signals into digital data.

Packaging/Quantity: The ADS7949SRTER is available in a small outline package, supplied on tape and reel. The quantity per reel may vary depending on the manufacturer's specifications.

Specifications

• Resolution: 16 bits
• Sampling Rate: Up to 1 MSPS (Mega Samples Per Second)
• Input Voltage Range: ±Vref
• Power Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADS7949SRTER features a 20-pin small outline package with the following pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | VDD | Power Supply Voltage 2 | VREF | Reference Voltage 3 | AGND | Analog Ground 4 | REFOUT | Reference Output 5 | AIN0 | Analog Input Channel 0 6 | AIN1 | Analog Input Channel 1 7 | AIN2 | Analog Input Channel 2 8 | AIN3 | Analog Input Channel 3 9 | AIN4 | Analog Input Channel 4 10 | AIN5 | Analog Input Channel 5 11 | AIN6 | Analog Input Channel 6 12 | AIN7 | Analog Input Channel 7 13 | CS | Chip Select 14 | SCLK | Serial Clock 15 | SDI | Serial Data Input 16 | SDO | Serial Data Output 17 | DOUT/DRDY| Data Output / Data Ready 18 | DGND | Digital Ground 19 | DVDD | Digital Power Supply Voltage 20 | RESET | Reset Input

Functional Features

• High-resolution conversion: The ADS7949SRTER offers a 16-bit resolution, allowing for precise digitization of analog signals.
• Low power consumption: This ADC is designed to minimize power consumption, making it suitable for battery-powered applications.
• Serial interface: The device utilizes a serial interface (SPI) for communication with microcontrollers or other digital devices.
• Small form factor: The small outline package enables space-efficient integration into various electronic systems.

Advantages and Disadvantages

Advantages: - High resolution ensures accurate conversion of analog signals. - Low power consumption extends battery life in portable applications. - Serial interface simplifies integration with digital systems. - Small form factor allows for compact designs.

Disadvantages: - Limited input voltage range may not be suitable for applications requiring higher voltage levels. - Higher cost compared to lower-resolution ADCs.

Working Principles

The ADS7949SRTER operates based on the successive approximation register (SAR) architecture. It converts analog input voltages into digital data by comparing the input signal against a reference voltage and iteratively approximating the digital representation until the desired accuracy is achieved.

Detailed Application Field Plans

The ADS7949SRTER can be applied in various fields, including but not limited to: 1. Industrial automation: Precise measurement and control systems. 2. Medical equipment: Accurate data acquisition in medical devices. 3. Test and measurement: High-resolution signal analysis and data logging. 4. Audio processing: Analog-to-digital conversion for audio signals. 5. Energy management: Monitoring and control of power consumption.

Detailed and Complete Alternative Models

1. ADS7948SRTER: Similar to the ADS7949SRTER but with a lower resolution of 12 bits.
2. ADS7950SRTER: Higher-resolution ADC with 18-bit conversion capability.
3. ADS7924SRTER: Lower-cost alternative with 10-bit resolution.

These alternative models provide options with varying resolutions and features to suit different application requirements.

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