Texas Instruments ADS7029-Q1 SAR Analog-to-Digital Converter (ADC)
Texas Instruments ADS7029-Q1 SAR Analog-to-Digital Converter (ADC) is an automotive Q100-qualified, 8-bit, 2MSPS, ADCs. The device supports a wide analog input voltage range (2.35V to 3.6V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals.
The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65V to 3.6V), enabling a direct interface to a variety of host controllers. The ADS7029-Q1 complies with the JESD8-7A standard for a normal DVDD range (1.65V to 1.95V).
Features
- Qualified for automotive applications
- AEC-Q100 Qualified with device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level ±2000V
- Device CDM ESD classification level ±1000V
- Ultra-low power consumption of 1.11mW (max) at 2MSPS with 3V AVDD
- Less than 1µW at 1kSPS with 3V AVDD
- Miniature footprint in 2.30mm × 2.00mm 8-Pin VSSOP package
- 2MSPS Throughput with zero data latency
- 2.35V to 3.6V Wide operating range AVDD
- 1.65V to 3.6V DVDD (Independent of AVDD)
- –40°C to +125°C Temperature range
- Excellent Performance of 8-Bit resolution with NMC
- ±0.2LSB DNL; ±0.25LSB INL
- 49dB SNR with 3V AVDD
- –70dB THD with 3V AVDD
- 0V to AVDD Unipolar input range
- Integrated Offset Calibration
- 32MHz SPI-Compatible serial interface
- JESD8-7A Compliant digital I/O
Applications
- Automotive infotainment
- Automotive sensors
- Level sensors
- Ultrasonic flow meters
- Motor control
- Portable medical equipment
Functional Diagram
Opublikowano: 2017-08-18
| Zaktualizowano: 2025-03-06