參數(shù)資料
型號: SX8724E082TDT
廠商: Semtech
文件頁數(shù): 42/53頁
文件大?。?/td> 0K
描述: IC DAS PRESS/TEMP SENS 16MLPQ
標(biāo)準(zhǔn)包裝: 1
系列: ZoomingADC™
類型: 數(shù)據(jù)采集系統(tǒng)(DAS)
輸入類型: 差分
輸出類型: 數(shù)字
接口: I²C
安裝類型: 表面貼裝
封裝/外殼: 16-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-MLPQ(4x4)
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
其它名稱: SX8724E082TDTDKR
ADVANCED COMMUNICATIONS & SENSING
V1.23 2009 Semtech Corp.
www.semtech.com
47
SX8724
ZoomingADC for Pressure and Temperature Sensing
Power Consumption
Figure 29 plots the variation of quiescent current consumption with supply voltage VDD, as well as the
distribution between the 3 PGA stages and the ADC (see Table 34). As shown in Figure 30, if lower sampling
frequency is used, the quiescent current consumption can be lowered by reducing the bias currents of the PGAs
and the ADC with registers IB_AMP_PGA [1:0] and IB_AMP_ADC [1:0]. (In Figure 30, IB_AMP_PGA/ADC[1:0]
= '11', '10', '00' for fS = 500, 250, 62.5 kHz respectively.)
Quiescent current consumption vs. temperature is depicted in Figure 31, showing a relative increase of nearly
40% between -45 and +85°C.
Figure 29 - Quiescent Current Consumption vs. Supply Voltage
Figure 30 - Quiescent Current Consumption vs. Supply Voltage for Different Sampling Frequencies
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