Texas Instruments ADS7029-Q1 SAR模数转换器 (ADC)
Texas Instruments ADS7029-Q1 SAR模数转换器 (ADC) 是一款符合汽车Q100标准的8位2MSPS模数转换器。该器件的模拟输入电压范围都很大（2.35V至3.6V），并包含一个带固有采样保持电路的电容式、逐次逼近寄存器 (SAR) 模数转换器。SPI兼容串行接口通过CS和SCLK信号进行控制。输入信号随CS下降沿一起得到采样，而SCLK用于转换和串行数据输出。该器件支持宽幅数字电源范围（1.65V至3.6V），可以与多种主控制器连接。对于普通DVDD范围（1.65V至1.95V），ADS7029-Q1符合JESD8-7A标准。
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).
特性
- 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
应用
- Automotive infotainment
- Automotive sensors
- Level sensors
- Ultrasonic flow meters
- Motor control
- Portable medical equipment
Functional Diagram
发布日期: 2017-08-18
| 更新日期: 2025-03-06