Overview
The ADS7954SRGER is a 10-bit, 4-channel analog-to-digital converter (ADC) produced by Texas Instruments. It is part of the ADS79xx family, which offers a range of resolutions and channel configurations. This device is known for its high-speed data acquisition capabilities, low power consumption, and versatile interface options. The ADS7954SRGER is packaged in a 24-pin VQFN (4x4 mm) package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 4 channels |
| Sampling Rate | 1 MSPS (1 million samples per second) |
| Analog Supply Range | 2.7 V to 5.25 V |
| I/O Supply Range | 1.7 V to 5.25 V |
| Input Ranges | 0 to VREF and 0 to 2 x VREF |
| Serial Interface | 20 MHz, controlled by CS and SCLK |
| Package Type | 24-pin VQFN (4x4 mm) |
| Power Dissipation | Typically 14.5 mW at 1 MSPS |
| Power-Down Current | 1 μA |
| Input Bandwidth | 47 MHz at 3 dB |
Key Features
- Zero latency and high-speed serial interface up to 20 MHz.
- Auto and manual modes for channel selection.
- Two software-selectable input ranges: 0 to VREF and 0 to 2 x VREF.
- Two programmable alarm levels per channel.
- Four individually configurable GPIOs (in TSSOP package; one in VQFN package).
- Low power consumption and power-down feature for power saving.
- Wide analog and I/O supply voltage ranges for flexibility in system design.
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 ADS7954SRGER?
The ADS7954SRGER has a resolution of 10 bits.
- How many channels does the ADS7954SRGER have?
The ADS7954SRGER has 4 channels.
- What is the sampling rate of the ADS7954SRGER?
The sampling rate is 1 MSPS (1 million samples per second).
- What is the analog supply range for the ADS7954SRGER?
The analog supply range is from 2.7 V to 5.25 V.
- What types of input ranges are available on the ADS7954SRGER?
The device has two software-selectable input ranges: 0 to VREF and 0 to 2 x VREF.
- How is the serial interface controlled on the ADS7954SRGER?
The serial interface is controlled by CS (Chip Select) and SCLK (Serial Clock) signals.
- What is the typical power dissipation of the ADS7954SRGER at 1 MSPS?
The typical power dissipation is 14.5 mW at 1 MSPS.
- What is the power-down current of the ADS7954SRGER?
The power-down current is 1 μA.
- What are some common applications for the ADS7954SRGER?
Common applications include PLC/IPC, optical line card monitoring, medical instrumentation, digital power supplies, and high-speed data acquisition systems.
- What package type is the ADS7954SRGER available in?
The ADS7954SRGER is available in a 24-pin VQFN (4x4 mm) package.
