TLV571IPW屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國(guó)德州儀器公司制造生產(chǎn)的TLV571IPW模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號(hào)。一般來(lái)說(shuō)，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

features

Fast Throughput Rate: 1.25 MSPS at 5 V,

625 KSPS at 3 V

Wide Analog Input: 0 V to AVDD

Differential Nonlinearity Error: < ± 0.5 LSB

Integral Nonlinearity Error: < ± 0.5 LSB

Single 2.7-V to 5.5-V Supply Operation

Low Power: 12 mW at 3 V and 35 mW at 5 V

Auto Power Down of 1 mA Max

Software Power Down: 10 mA Max

Internal OSC

Hardware Configurable

DSP and Microcontroller Compatible

Parallel Interface

Binary/Twos Complement Output

Hardware Controlled Extended Sampling

Hardware or Software Start of Conversion

applications

Mass Storage and HDD

Automotive

Digital Servos

Process Control

General-Purpose DSP

Image Sensor Processing

description

The TLV571 is an 8-bit data acquisition system

that combines a high-speed 8-bit ADC and a

parallel interface. The device contains two on-chip control registers allowing control of software conversion start

and power down via the bidirectional parallel port. The control registers can be set to a default mode using a

dummy RD while WR is tied low allowing the registers to be hardware configurable.

The TLV571 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range from 0 V to

AVDD and digitizes the input at a maximum 1.25 MSPS throughput rate at 5 V. The power dissipations are only

12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode that

automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the

ADC is further powered down to only 10 mA.

Very high throughput rate, simple parallel interface, and low power consumption make the TLV571 an ideal

choice for high-speed digital signal processing.