CS5521 datasheet(51/56 Pages) CIRRUS

部品番号	CS5521

部品情報	16-bit or 24-bit, 2/4/8-channel ADCs with PGIA

PDF	56 Pages

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メーカー	CIRRUS [Cirrus Logic]

ホームページ	http://www.cirrus.com

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51 / 56 page

CS5521/22/23/24/28

DS317F8

NBV - Negative Bias Voltage.

Input pin to supply the negative supply voltage for the 20X gain instrumentation amplifier and

coarse/fine charge buffers. May be tied to AGND if AIN+ and AIN- inputs are centered around

+2.5 V; or it may be tied to a negative supply voltage (-2.1 V typical) to allow the amplifier to

handle low level signals more negative than ground. When using the CS5528 in either the

25 mV, 55 mV or 100 mV range, the analog inputs are expected to be ground referenced;

therefore, NBV must be between -1.8 to -2.5 to ensure proper operation.

CPD - Charge Pump Drive.

Square wave output used to provide energy for the charge pump.

2.4 Power Supply Connections

VA+ - Positive Analog Power.

Positive analog supply voltage. Nominally +5 V.

VD+ - Positive Digital Power.

Positive digital supply voltage. Nominally +3.0 V or +5 V.

AGND - Analog Ground.

Analog Ground.

DGND - Digital Ground.

Digital Ground.

CS5521 データシート(PDF) 51 Page - Cirrus Logic