Texas Instruments ADS816x Precision SAR Analog-to-Digital Converters
Texas Instruments ADS816x Precision SAR Analog-to-Digital Converters (ADCs) are 16-bit, 8-channel, high-precision successive approximation register (SAR) ADCs operating from a single 5V supply. These devices have a total throughput of 1MSPS (ADS8168), 500kSPS (ADS8167), or 250kSPS (ADS8166). The input multiplexer supports extended settling time, which makes driving the analog inputs easier. The output of the multiplexer and ADC analog inputs are available as device pins. This configuration allows one ADC driver op amp to be used for all eight analog inputs of the multiplexer. The Texas Instruments ADS816x simplifies data processing with an enhanced channel sequencer that reduces software complexity.
Features
- Compact low-power data acquisition system
- MUX breakout enables a single external driver amplifier
- Single-supply operation
- 16-bit SAR ADC
- Low drift integrated reference and buffer
- 0.5 × VREF output for analog input DC biasing
- Excellent AC and DC performance
- SNR: 92dB, THD: –110dB
- INL: ±0.3LSB, 16-bit no missing codes
- Low leakage multiplexer with sequencer
- Multiple-channel sequencing options
- Manual mode, on-the-fly mode, auto sequence mode, and custom channel sequencing
- Early switching enables direct sensor interface
- Fast response time with on-the-fly mode
- Multiple-channel sequencing options
- System monitoring features
- Per channel programmable window comparator
- Alert output for MCU interrupt
- False trigger avoidance with programmable hysteresis
- Enhanced-SPI digital interface
- 1MSPS throughput with 16MHz SCLK
- High-speed, 70MHz digital interface
- –40°C to +125°C wide temperature range
Applications
- Optical line cards
- Data acquisition cards
- Test and measurement
- Patient monitoring
- PLC universal analog input module
Functional Block Diagram
Opublikowano: 2019-02-06
| Zaktualizowano: 2023-06-16