Overview
The ADS7957QDBTRQ1 is a part of the ADS79xx-Q1 family of analog-to-digital converters (ADCs) produced by Texas Instruments. This device is an automotive-grade, 10-bit, 1-MSPS (mega-samples per second), 16-channel single-ended ADC. It is designed for high-performance and low-power consumption, making it suitable for a wide range of applications, including automotive systems, power supply monitoring, and battery-powered systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10 bits | |
| Sample Rate | 1 MSPS | |
| Number of Channels | 16 | |
| Analog Power Supply Voltage (V(+VA)) | 2.7 to 5.25 | V |
| Digital I/O Supply Voltage (V(+VBD)) | 1.7 to V(+VA) | V |
| Operating Temperature Range | -40 to 125 | °C |
| Conversion Time | 800 ns | |
| Acquisition Time | 325 ns | |
| Maximum Throughput Rate | 1 MHz | |
| Aperture Delay | 5 ns | |
| Step Response | 150 ns | |
| Over Voltage Recovery | 150 ns | |
| Power Dissipation (Typical) | 14.5 mW (V(+VA) = 5 V, V(+VBD) = 3 V) at 1 MSPS | |
| Power-Down Current | 1 μA | |
| Package | 38-pin TSSOP |
Key Features
- Qualified for automotive applications with AEC-Q100 testing.
- Low power consumption, suitable for battery-powered and isolated power-supply applications.
- Two SW-selectable unipolar input ranges: 0 V to 2.5 V or 0 V to 5 V.
- Auto and manual modes for channel selection.
- Two programmable alarm levels per channel.
- Four individually configurable GPIOs.
- Capacitor-based successive approximation register (SAR) ADC with inherent sample and hold.
- High-speed serial interface.
Applications
- Automotive systems.
- Power supply monitoring.
- Battery-powered systems.
- High-speed data-acquisition systems.
Q & A
- What is the resolution of the ADS7957QDBTRQ1 ADC?
The ADS7957QDBTRQ1 has a resolution of 10 bits.
- What is the sample rate of the ADS7957QDBTRQ1?
The sample rate is 1 MSPS (mega-samples per second).
- How many channels does the ADS7957QDBTRQ1 have?
The device has 16 single-ended channels.
- What is the operating temperature range of the ADS7957QDBTRQ1?
The operating temperature range is -40°C to 125°C.
- What are the power supply voltage ranges for the ADS7957QDBTRQ1?
The analog power supply voltage (V(+VA)) ranges from 2.7 V to 5.25 V, and the digital I/O supply voltage (V(+VBD)) ranges from 1.7 V to V(+VA).
- What is the typical power dissipation of the ADS7957QDBTRQ1?
The typical power dissipation is 14.5 mW at 1 MSPS with V(+VA) = 5 V and V(+VBD) = 3 V.
- What is the power-down current of the ADS7957QDBTRQ1?
The power-down current is 1 μA.
- What package type is the ADS7957QDBTRQ1 available in?
The device is available in a 38-pin TSSOP package.
- What are the key features of the ADS7957QDBTRQ1?
Key features include low power consumption, SW-selectable input ranges, auto and manual channel selection, programmable alarm levels, and individually configurable GPIOs.
- In which applications is the ADS7957QDBTRQ1 commonly used?
The device is commonly used in automotive systems, power supply monitoring, battery-powered systems, and high-speed data-acquisition systems.
