ADS7049QDCURQ1集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7049QDCURQ1属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS7049QDCURQ1模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

1 Features

1• Qualified for Automotive Applications

• AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 1: –40°C to 125°C

Ambient Operating Temperature Range

– Device HBM ESD Classification Level ±2000 V

– Device CDM ESD Classification Level ±1000 V

• Ultra-Low Power Consumption:

– 1.38 mW (max) at 2 MSPS with 3-V AVDD

– Less Than 1 μW at 1 kSPS with 3-V AVDD

• Miniature Footprint:

– 8-Pin VSSOP Package: 2.30 mm × 2.00 mm

• 2-MSPS Throughput with Zero Data Latency

• Wide Operating Range:

– AVDD: 2.35 V to 3.6 V

– DVDD: 1.65 V to 3.6 V (Independent of AVDD)

– Temperature Range: –40°C to +125°C

• Excellent Performance:

– 12-Bit Resolution with NMC

– ±0.5 LSB DNL; ±0.5 LSB INL

– 70-dB SNR with 3-V AVDD

– –80-dB THD with 3-V AVDD

• Unipolar Input Range: 0 V to AVDD

• Integrated Offset Calibration

• SPI-Compatible Serial Interface: 32 MHz

• JESD8-7A Compliant Digital I/O

2 Applications

• Automotive Infotainment

• Automotive Sensors

• Level Sensors

• Ultrasonic Flow Meters

• Motor Control

• Portable Medical Equipment

3 Description

The ADS7049-Q1 device is a an automotive Q100-

qualified, 12-bit, 2-MSPS, analog-to-digital converter

(ADC). The device supports a wide analog input

voltage range (2.35 V to 3.6 V) 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 (1.65 V to 3.6 V),

enabling direct interface to a variety of host

controllers. The ADS7049-Q1 complies with the

JESD8-7A standard for a normal DVDD range

(1.65 V to 1.95 V).

The ADS7049-Q1 is available in an 8-pin, miniature,

VSSOP package and is specified for operation from

–40°C to +125°C. The fast sampling rate of the

ADS7049-Q1, along with miniature form-factor and

low-power consumption, makes this device suitable

for space-constrained and fast-scanning automotive

applications.