AD7781CRUZ-REEL集成電路（IC）的模數轉換器（ADC）規(guī)格書PDF中文資料

AD7781CRUZ-REEL屬于集成電路（IC）的模數轉換器（ADC）。由亞德諾半導體技術有限公司制造生產的AD7781CRUZ-REEL模數轉換器（ADC）模數轉換器（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，然后將其轉換為數字信號。一般來說，數字輸出是二進制補碼二進制數，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數轉換器可按照位數、采樣率、輸入數、接口、轉換器數和架構（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 AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-chip oscillator.

FEATURES

Pin-programmable filter response

Update rate: 10 Hz or 16.7 Hz

Pin-programmable in-amp gain

Pin-programmable power-down and reset

Status function

Internal clock oscillator

Internal bridge power-down switch

Current

115 μA typical (gain = 1)

330 μA typical (gain = 128)

Simultaneous 50 Hz/60 Hz rejection

Power supply: 2.7 V to 5.25 V

?40°C to +105°C temperature range

Independent interface power supply

Packages

14-lead, narrow body SOIC

16-lead TSSOP

2-wire serial interface (read-only device)

SPI compatible

Schmitt trigger on SCLK

APPLICATIONS

Weigh scales

Pressure measurement

Industrial process control

Portable instrumentation