ADS8509IDB集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS8509IDB属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS8509IDB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。

1FEATURES

2• 250-kHz Sampling Rate

• 4-V, 5-V, 10-V, ±3.33-V, ±5-V, and ±10-V Input

Ranges

• ±2 LSB Max INL

• ±1 LSB Max DNL, 16-Bit No Missing Codes

• SPI Compatible Serial Output with Daisy-Chain

(TAG) Feature

• Single 5-V Supply

• Pin-Compatible with ADS7809 (Low Speed)

and 12-Bit ADS8508/7808

• Uses Internal or External Reference

• 70-mW Typ Power Dissipation at 250 KSPS

• 20-Pin SO and 28-Pin SSOP Packages

• Simple DSP Interface

APPLICATIONS

• Industrial Process Control

• Data Acquisition Systems

• Digital Signal Processing

• Medical Equipment

• Instrumentation

DESCRIPTION

The ADS8509 is a complete 16-bit sampling

analog-to-digital (A/D) converter using state-of-the-art

CMOS structures. It contains a complete 16-bit,

capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold,

reference, clock, and a serial data interface. Data can

be output using the internal clock or can be

synchronized to an external data clock. The ADS8509

also provides an output synchronization pulse for ease of use with standard DSP processors.

The ADS8509 is specified at a 250-kHz sampling rate

over the full temperature range. Precision resistors

provide various input ranges including ±10 V and 0 V

to 5 V, while the innovative design allows operation

from a single +5-V supply with power dissipation

under 100 mW.

The ADS8509 is available in 20-pin SO and 28-pin

SSOP packages, both fully specified for operation

over the industrial -40°C to 85°C temperature range.