Overview
The ADS7953SBDBTR, produced by Texas Instruments, is a 12-bit, 1-MSPS (mega-samples per second), 16-channel, single-ended analog-to-digital converter (ADC). This device is part of the ADS79xx family, known for its high-speed data acquisition capabilities and low power consumption. It features a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold, making it suitable for a wide range of applications including high-speed signal monitoring and closed-loop systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 1 MSPS |
| Number of Channels | 16 channels |
| Analog Supply Range | 2.7 V to 5.25 V |
| I/O Supply Range | 1.7 V to 5.25 V |
| Serial Interface | 20-MHz, controlled by CS and SCLK |
| Package Type | 38-pin TSSOP |
| Package Size | 9.70 mm × 4.40 mm |
| Input Ranges | 0 V to VREF, 0 V to 2 × VREF (software selectable) |
| GPIOs | Four (for TSSOP package) |
| Alarm Thresholds | Two programmable alarm thresholds per channel |
Key Features
- High-speed data acquisition with 1 MSPS sampling rate.
- Low power consumption, suitable for battery-powered and isolated power-supply applications.
- Wide analog supply range (2.7 V to 5.25 V) and I/O supply range (1.7 V to 5.25 V).
- Glueless interface with most commonly used digital hosts due to the wide I/O supply range.
- Auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.
- Software selectable input ranges (0 V to VREF and 0 V to 2 × VREF).
- Individually configurable GPIOs (four for TSSOP package).
- Two programmable alarm thresholds per channel.
- Power-down feature for power saving at lower conversion speeds.
Applications
- High-speed data acquisition systems.
- High-speed closed-loop systems.
- Multi-channel, general-purpose signal monitoring.
- Battery-powered and isolated power-supply applications.
Q & A
- What is the resolution of the ADS7953SBDBTR?
The ADS7953SBDBTR has a resolution of 12 bits. - What is the sampling rate of the ADS7953SBDBTR?
The sampling rate is 1 MSPS (mega-samples per second). - How many channels does the ADS7953SBDBTR have?
The device has 16 channels. - What is the analog supply range of the ADS7953SBDBTR?
The analog supply range is from 2.7 V to 5.25 V. - What is the I/O supply range of the ADS7953SBDBTR?
The I/O supply range is from 1.7 V to 5.25 V. - What type of package is the ADS7953SBDBTR available in?
The device is available in a 38-pin TSSOP package. - Does the ADS7953SBDBTR support auto sequencing of channels?
Yes, it supports auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle. - How many GPIOs are available on the TSSOP package of the ADS7953SBDBTR?
There are four GPIOs available on the TSSOP package. - What is the purpose of the power-down feature in the ADS7953SBDBTR?
The power-down feature is for power saving when the device is operated at lower conversion speeds. - What are the software selectable input ranges for the ADS7953SBDBTR?
The input ranges are 0 V to VREF and 0 V to 2 × VREF.
