ADS7805U/1K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ADS7805U/1K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

100kHz min SAMPLING RATE

STANDARD ±10V INPUT RANGE

86dB min SINAD WITH 20kHz INPUT

±3.0 LSB max INL

DNL: 16 Bits No Missing Codes

SINGLE +5V SUPPLY OPERATION

PIN-COMPATIBLE WITH 12-BIT ADS7804

USES INTERNAL OR EXTERNAL

REFERENCE

FULL PARALLEL DATA OUTPUT

100mW max POWER DISSIPATION

0.3 DIP-28 AND SO-28

DESCRIPTION

The ADS7805 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 (S/H), reference, clock, interface for microprocessor

use, and 3-state output drivers.

The ADS7805 is specified at a 100kHz sampling rate and

ensured over the full temperature range. Laser-trimmed

scaling resistors provide an industry-standard ±10V input

range while the innovative design allows operation from a

single +5V supply, with power dissipation under 100mW.

The ADS7805 is available in a 0.3 DIP-28 and an SO-28

package. Both are fully specified for operation over the

industrial –25°C to +85°C range; however, they will function

over the –40°C to +85C temperature range.