Overview
The ADS7952SBDBTR is a 12-bit, multichannel analog-to-digital converter (ADC) produced by Texas Instruments. It is part of the ADS79xx family, which includes pin-compatible devices with 12-, 10-, and 8-bit resolutions. This device is designed for high-speed data acquisition and features a capacitor-based successive approximation register (SAR) ADC with inherent sample and hold capabilities. The ADS7952SBDBTR is suitable for a wide range of applications, including battery-powered and isolated power-supply systems, due to its low power consumption and flexible supply voltage ranges.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Channels | 12 |
| Converter Resolution | 12 bits |
| Sampling Rate | 1 MHz |
| Analog Supply Range | 2.7 V to 5.25 V |
| I/O Supply Range | 1.7 V to 5.25 V |
| Input Type | Single-ended |
| Input Ranges | 0 to VREF and 0 to 2 × VREF |
| Serial Interface | 20 MHz SPI |
| Package | 38-pin TSSOP |
| Operating Temperature Range | -40°C to 125°C |
| Power Dissipation | Typical 14.5 mW at 1 MSPS |
| Power-Down Current | 1 µA |
| Input Bandwidth | 47 MHz at 3 dB |
Key Features
- 1-MHz sample rate with zero latency
- 20-MHz serial interface controlled by CS and SCLK
- Two software-selectable unipolar 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
- Low power consumption with a power-down feature
- Capacitor-based SAR A/D converter with inherent sample and hold
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 ADS7952SBDBTR ADC?
The ADS7952SBDBTR has a 12-bit resolution.
- What is the sampling rate of the ADS7952SBDBTR?
The sampling rate is 1 MHz.
- What are the analog and I/O supply voltage ranges for the ADS7952SBDBTR?
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.
- What type of serial interface does the ADS7952SBDBTR use?
The device uses a 20 MHz SPI serial interface.
- How many channels does the ADS7952SBDBTR have?
The device has 12 channels.
- What is the operating temperature range of the ADS7952SBDBTR?
The operating temperature range is -40°C to 125°C.
- What is the typical power dissipation of the ADS7952SBDBTR at 1 MSPS?
The typical power dissipation is 14.5 mW at 1 MSPS.
- Does the ADS7952SBDBTR have a power-down feature?
Yes, the device has a power-down feature with a current of 1 µA.
- What is the input bandwidth of the ADS7952SBDBTR?
The input bandwidth is 47 MHz at 3 dB.
- What types of packages are available for the ADS7952SBDBTR?
The device is available in 38-pin TSSOP and 32-pin VQFN packages.
