Overview
The ADS7953SRHBR is a 12-bit, 1-MSPS (mega-samples per second), 16-channel analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS79xx family, known for its high performance, low power consumption, and versatility in various applications. The ADS7953SRHBR features a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold, making it suitable for high-speed data acquisition and closed-loop systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Sample Rate | 1 MSPS | |
| Number of Channels | 16 | |
| Analog Supply Range | 2.7 to 5.25 V | V |
| Digital I/O Supply Range | 1.7 to 5.25 V | V |
| Input Bandwidth | 47 MHz at 3 dB | |
| Power Consumption (at 1 MSPS) | 14.5 mW (+VA = 5 V, +VBD = 3 V) | mW |
| Power-Down Current | 1 μA | μA |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Type | 32-pin VQFN | |
| Package Size | 5.00 mm × 5.00 mm | mm |
Key Features
- Zero latency and 20-MHz serial interface for high-speed data transfer.
- Two software-selectable input ranges: 0 to VREF and 0 to 2 × VREF.
- Auto and manual modes for channel selection.
- Two programmable alarm levels per channel.
- Four individually configurable GPIOs in TSSOP package (one GPIO in VQFN package).
- Low power consumption, making it suitable for battery-powered and isolated power-supply applications.
- AEC-Q100 tested for automotive applications with a temperature grade of –40°C to 125°C.
Applications
- PLC/IPC (Programmable Logic Controllers/Industrial PCs)
- Optical Line Card Monitoring
- Medical Instrumentation
- Digital Power Supplies
- Multi-Channel, General-Purpose Signal Monitoring
- High-Speed Data Acquisition Systems
- High-Speed Closed-Loop Systems
Q & A
- What is the resolution of the ADS7953SRHBR ADC?
The ADS7953SRHBR has a 12-bit resolution.
- What is the sample rate of the ADS7953SRHBR?
The sample rate is 1 MSPS (mega-samples per second).
- How many channels does the ADS7953SRHBR support?
The device supports 16 channels.
- What is the analog supply range for the ADS7953SRHBR?
The analog supply range is from 2.7 V to 5.25 V.
- What is the power consumption of the ADS7953SRHBR at 1 MSPS?
The power consumption is approximately 14.5 mW at +VA = 5 V and +VBD = 3 V.
- What is the power-down current of the ADS7953SRHBR?
The power-down current is 1 μA.
- What is the operating temperature range of the ADS7953SRHBR?
The operating temperature range is from –40°C to 125°C.
- What package types are available for the ADS7953SRHBR?
The device is available in a 32-pin VQFN package.
- Is the ADS7953SRHBR suitable for automotive applications?
Yes, it is AEC-Q100 tested and qualified for automotive applications.
- What are the key features of the serial interface of the ADS7953SRHBR?
The serial interface operates at up to 20 MHz and is controlled by CS and SCLK signals.
