Overview
The Texas Instruments ADS8548SRGCR is a 14-bit, 8-channel simultaneous-sampling analog-to-digital converter (ADC) designed for high-performance applications. This device is part of the ADS85x8 family, which includes 12-, 14-, and 16-bit ADCs. The ADS8548 features true bipolar inputs and supports simultaneous high-speed signal acquisition up to 600 kSPS in parallel mode and 450 kSPS in serial mode. It is available in a 64-pin VQFN package and is fully specified over an extended industrial temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 bits | |
| Number of Channels | 8 | |
| Maximum Data Rate (Parallel) | 600 kSPS | kSPS per Channel |
| Maximum Data Rate (Serial) | 450 kSPS | kSPS per Channel |
| Signal-to-Noise Ratio (SNR) | 85 dB | dB |
| Total Harmonic Distortion (THD) | –91 dB | dB |
| Input Voltage Range | ±12 V | V |
| Interface | Selectable Parallel or Serial | |
| Power Consumption (Auto-Sleep Mode at 10 kSPS) | 32 mW | mW |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package | 64-pin VQFN |
Key Features
- Family of pin- and software-compatible ADCs with 12-, 14-, and 16-bit resolutions.
- Programmable, buffered internal reference supporting input voltage ranges up to ±12 V.
- Selectable parallel or serial interface with daisy-chain capability.
- Scalable low-power operation using auto-sleep mode.
- Excellent AC performance with high SNR and low THD.
- Fully specified over an extended industrial temperature range.
Applications
- Protection Relays
- Power Quality Measurement
- Multi-Axis Motor Controls
- Programmable Logic Controllers
- Industrial Data Acquisition
Q & A
- What is the resolution of the ADS8548 ADC?
The ADS8548 has a resolution of 14 bits.
- How many channels does the ADS8548 support?
The ADS8548 supports 8 channels.
- What are the maximum data rates for the ADS8548 in parallel and serial modes?
The maximum data rates are 600 kSPS in parallel mode and 450 kSPS in serial mode.
- What is the signal-to-noise ratio (SNR) of the ADS8548?
The SNR of the ADS8548 is 85 dB.
- What is the total harmonic distortion (THD) of the ADS8548?
The THD of the ADS8548 is –91 dB.
- What is the input voltage range supported by the ADS8548?
The input voltage range supported is up to ±12 V.
- Does the ADS8548 support both parallel and serial interfaces?
- How much power does the ADS8548 consume in auto-sleep mode at 10 kSPS?
The power consumption in auto-sleep mode at 10 kSPS is 32 mW.
- What is the operating temperature range of the ADS8548?
The operating temperature range is –40°C to +125°C.
- In what package is the ADS8548 available?
The ADS8548 is available in a 64-pin VQFN package.
