Overview
The ADS7953SBDBT is a 12-bit, 1-MSPS (Mega Samples Per Second), 16-channel, single-ended analog-to-digital converter (ADC) produced by Texas Instruments. It is part of the ADS79xx family, which includes pin-compatible multichannel ADCs with resolutions of 12, 10, and 8 bits. This device is designed for high-speed data acquisition and features a capacitor-based SAR (Successive Approximation Register) A/D converter with inherent sample and hold capabilities. The ADS7953SBDBT is suitable for a wide range of applications due to its low power consumption and flexible supply voltage ranges, making it ideal for battery-powered and isolated power-supply applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sample Rate | 1 MSPS |
| Number of Channels | 16 |
| Analog Supply Range | 2.7 V to 5.25 V |
| I/O Supply Range | 1.7 V to 5.25 V |
| Input Ranges | 0 V to VREF and 0 V to 2 × VREF |
| Serial Interface | 20 MHz |
| Power Dissipation | 14.5 mW (+VA = 5 V, +VBD = 3 V) at 1 MSPS |
| Power-Down Current | 1 μA |
| Input Bandwidth | 47 MHz at 3 dB |
| Package | 38-pin TSSOP |
Key Features
- Zero latency
- Auto and manual modes for channel selection
- Two programmable alarm levels per channel
- Four individually configurable GPIOs in TSSOP package
- Wide analog and I/O supply voltage ranges for flexibility
- Glueless interface with most digital hosts
- Low power consumption and power-down feature for power saving
- High input impedance and capacitor-based SAR A/D converter
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 ADS7953SBDBT?
The ADS7953SBDBT has a resolution of 12 bits. - How many channels does the ADS7953SBDBT support?
The device supports 16 channels. - What is the sample rate of the ADS7953SBDBT?
The sample rate is 1 MSPS. - What are the analog and I/O supply voltage ranges for the ADS7953SBDBT?
The analog supply range is 2.7 V to 5.25 V, and the I/O supply range is 1.7 V to 5.25 V. - Does the ADS7953SBDBT support auto and manual channel selection?
Yes, it supports both auto and manual modes for channel selection. - How many programmable alarm levels are available per channel?
There are two programmable alarm levels per channel. - What is the typical power dissipation of the ADS7953SBDBT at 1 MSPS?
The typical power dissipation is 14.5 mW (+VA = 5 V, +VBD = 3 V) at 1 MSPS. - What is the power-down current of the ADS7953SBDBT?
The power-down current is 1 μA. - What is the input bandwidth of the ADS7953SBDBT at 3 dB?
The input bandwidth is 47 MHz at 3 dB. - In what package is the ADS7953SBDBT available?
The device is available in a 38-pin TSSOP package.
