AD7984BRMZ集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）規(guī)格書PDF中文資料

AD7984BRMZ屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7984BRMZ模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(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。一般來說，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。

GENERAL DESCRIPTION

The AD79841 is an 18-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 18-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7984 samples the voltage difference between the IN+ and IN? pins. The voltages on these pins usually swing in opposite phases between 0 V and VREF. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD.

FEATURES

High performance

True differential analog input range: ±VREF

0 V to VREF with VREF between 2.9 V to 5 V

Easy to drive with the ADA4941

Throughput: 1.33 MSPS

Zero latency architecture

18-bit resolution with no missing codes

INL: ±2.25 LSB maximum

Dynamic range: 99.7 dB, VREF = 5 V

SNR: 98.5 dB at fIN = 1 kHz, VREF = 5 V

THD: ?110.5 dB at fIN = 1 kHz, VREF = 5 V

SINAD: 97.5 dB at fIN = 1 kHz, VREF = 5 V

Low power dissipation

Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V

logic interface

5.3 mW at 1.33 MSPS (VDD only)

10.5 mW at 1.33 MSPS (total)

80 μW at 10 kSPS

Proprietary serial interface

SPI/QSPI/MICROWIRE?/DSP compatible

Ability to daisy-chain multiple ADCs and busy indicator

10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP

Wide operating temperature range: ?40°C to +85°C

APPLICATIONS

Automated test equipment

Data acquisition systems

Medical instruments

Machine automation