Overview
The ADS7953SBRHBT, produced by Texas Instruments, is a 12-bit, 1-MSPS (mega-samples per second), 16-channel, single-ended, microPower Successive Approximation Register (SAR) analog-to-digital converter (ADC). This device is part of the ADS79xx family, which includes pin-compatible multichannel ADCs with resolutions of 12, 10, and 8 bits. The ADS7953SBRHBT features a capacitor-based SAR A/D converter with inherent sample and hold, making it suitable for a wide range of data acquisition applications. It is packaged in a 32-pin VQFN (RHB) package and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sample Rate | 1 MSPS |
| Number of Channels | 16 channels |
| Input Type | Single-ended |
| Analog Supply Range | 2.7 V to 5.25 V |
| I/O Supply Range | 1.7 V to 5.25 V |
| Serial Interface Speed | 20 MHz |
| Package Type | 32-pin VQFN (RHB) |
| Operating Temperature Range | -40°C to 125°C |
| Typical 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 |
Key Features
- 1-MHz sample rate with zero latency
- Two software-selectable unipolar input ranges: 0 V to VREF and 0 V to 2 × VREF
- Auto and manual modes for channel selection
- Two programmable alarm levels per channel
- One individually configurable GPIO in VQFN package
- Low power consumption, suitable for battery-powered and isolated power-supply applications
- Wide I/O supply range for glueless interface with most digital hosts
- Power-down feature for power saving at lower conversion speeds
Applications
The ADS7953SBRHBT is suitable for a variety of data acquisition applications due to its high resolution, low power consumption, and flexible input ranges. It is particularly useful in:
- Battery-powered devices where low power consumption is critical
- Isolated power-supply applications requiring high accuracy and reliability
- Industrial automation and control systems
- Medical devices and diagnostic equipment
- Aerospace and defense applications requiring robust and reliable ADCs
Q & A
- What is the resolution of the ADS7953SBRHBT?
The ADS7953SBRHBT has a resolution of 12 bits.
- What is the sample rate of the ADS7953SBRHBT?
The sample rate of the ADS7953SBRHBT is 1 MSPS.
- How many channels does the ADS7953SBRHBT have?
The ADS7953SBRHBT has 16 channels.
- What is the analog supply range of the ADS7953SBRHBT?
The analog supply range of the ADS7953SBRHBT is from 2.7 V to 5.25 V.
- What is the I/O supply range of the ADS7953SBRHBT?
The I/O supply range of the ADS7953SBRHBT is from 1.7 V to 5.25 V.
- What is the serial interface speed of the ADS7953SBRHBT?
The serial interface speed of the ADS7953SBRHBT is 20 MHz.
- What package type does the ADS7953SBRHBT come in?
The ADS7953SBRHBT comes in a 32-pin VQFN (RHB) package.
- What is the operating temperature range of the ADS7953SBRHBT?
The operating temperature range of the ADS7953SBRHBT is from -40°C to 125°C.
- What is the typical power dissipation of the ADS7953SBRHBT at 1 MSPS?
The typical power dissipation of the ADS7953SBRHBT at 1 MSPS is 14.5 mW (+VA = 5 V, +VBD = 3 V).
- What is the power-down current of the ADS7953SBRHBT?
The power-down current of the ADS7953SBRHBT is 1 µA.
