AD7763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AD7763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 AD7767/AD7767-1/AD7767-2 are high performance 24-bit oversampled SAR analog-to-digital converters (ADC). The AD7767/AD7767-1/AD7767-2 combine the benefits of a large dynamic range and input bandwidth, consuming 15 mW, 10.5 mW, and 8.5 mW power, respectively, all contained in a 16-lead TSSOP package.

FEATURES

Oversampled successive approximation (SAR) architecture

High performance ac and dc accuracy, low power

115.5 dB dynamic range, 32 kSPS (AD7767-2)

112.5 dB dynamic range, 64 kSPS (AD7767-1)

109.5 dB dynamic range, 128 kSPS (AD7767)

?118 dB THD

Exceptionally low power

8.5 mW, 32 kSPS (AD7767-2)

10.5 mW, 64 kSPS (AD7767-1)

15 mW, 128 kSPS (AD7767)

High dc accuracy

24 bits, no missing codes (NMC)

INL: ±3 ppm (typical), ±7.6 ppm (maximum)

Low temperature drift

Zero error drift: 15 nV/°C

Gain error drift: 0.0075 FS

On-chip low-pass FIR filter

Linear phase response

Pass-band ripple: ±0.005 dB

Stop-band attenuation: 100 dB

2.5 V supply with 1.8 V/2.5 V/3 V/3.6 V logic interface options

Flexible interfacing options

Synchronization of multiple devices

Daisy chain capability

Power-down function

Temperature range: ?40°C to +105°C

APPLICATIONS

Low power PCI/USB data acquisition systems

Low power wireless acquisition systems

Vibration analysis

Instrumentation

High precision medical acquisition