AD7451BRT集成電路（IC）的模數(shù)轉換器（ADC）規(guī)格書PDF中文資料

AD7451BRT屬于集成電路（IC）的模數(shù)轉換器（ADC）。由亞德諾半導體技術有限公司制造生產的AD7451BRT模數(shù)轉換器（ADC）模數(shù)轉換器（ADC、A/D 或 A 轉 D）對模擬信號進行采樣，例如由麥克風采集的聲音或傳感器的輸出，然后將其轉換為數(shù)字信號。一般來說，數(shù)字輸出是二進制補碼二進制數(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)轉換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉換器數(shù)和架構（例如自適應增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。

GENERAL DESCRIPTION

The AD7441/AD74511 are, respectively, 10-/12-bit high speed, low power, single-supply, successive approximation (SAR), analog-to-digital converters (ADCs) that feature a pseudo differential analog input. These parts operate from a single 2.7 V to 5.25 V power supply and achieve very low power dissipation at high throughput rates of up to 1 MSPS.

The AD7441/AD7451 contain a low noise, wide bandwidth, differential track-and-hold (T/H) amplifier that handles input frequencies up to 3.5 MHz. The reference voltage for these devices is applied externally to the VREF pin and can range from 100 mV to VDD, depending on the power supply and what suits the application.

FEATURES

Fast throughput rate: 1 MSPS

Specified for VDD of 2.7 V to 5.25 V

Low power at maximum throughput rate:

4 mW maximum at 1 MSPS with VDD = 3 V

9.25 mW maximum at 1 MSPS with VDD = 5 V

Pseudo differential analog input

Wide input bandwidth:

70 dB SINAD at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface:

SPI?-/QSPI?-/MICROWIRE?-/DSP-compatible

Power-down mode: 1 μA maximum

8-lead SOT-23 and MSOP packages

APPLICATIONS

Transducer interface

Battery-powered systems

Data acquisition systems

Portable instrumentation