14 FN7708.2 June 28, 2012 Power vs Throughput Rate The ISL267440 and ISL267450A provide reduced power consumption at lowe" />
參數資料
型號: ISL267440IUZ
廠商: Intersil
文件頁數: 6/18頁
文件大?。?/td> 0K
描述: IC INTERFACE
標準包裝: 980
系列: *
ISL267440, ISL267450A
14
FN7708.2
June 28, 2012
Power vs Throughput Rate
The ISL267440 and ISL267450A provide reduced power
consumption at lower conversion rates by automatically
switching into a low-power mode after completing a conversion.
The average power consumption of the ADC decreases at lower
throughput rates. Figure 31 shows the typical power
consumption over a wide range of throughput rates.
Serial Digital Interface
Conversion data is accessed with an SPI-compatible serial
interface. The interface consists of the serial clock (SCLK), serial
data output (SDATA), and chip select (CS).
The serial interface is designed around using 16 SCLK cycles to
perform an autozero on the SAR comparator and additional SCLK
cycles for SAR comparator decisions (12 SLCKs in the 12-bit
device, 10 SCLKs in the 10-bit device, and 8 SCLKs in the 8-bit
device). If short cycling is not used, all converter throughput
cycles take 16 SCLKs. The SDATA output goes low after the last
conversion decision has been presented to the SDATA output, as
shown in Figures 29 and 30.
FIGURE 29. ISL267450A SYSTEM TIMING
FIGURE 30. ISL267440 SYSTEM TIMING
FIGURE 31. POWER CONSUMPTION vs THROUGHPUT RATE
0.01
0.1
1
10
100
0
50
100
150
200
250
300
350
THROUGHPUT (Ksps)
P
O
WER
(mW)
VDD = 3V
VDD = 5V
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相關代理商/技術參數
參數描述
ISL267440IUZ-T 功能描述:模數轉換器 - ADC 10 BIT 1MSPS SAR ADC 8LD 3 X 3 PROPRIETRY RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ISL267440IUZ-T7A 功能描述:模數轉換器 - ADC 10 BIT 1MSPS SAR ADC IN 8LD RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ISL267450 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:12-Bit, 1MSPS SAR ADCs
ISL267450AIHZ-T 功能描述:IC ADC 12BIT SPI/SRL 8-SOT-23 RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數:12 采樣率(每秒):1.8M 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):1.82W 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP(7x7) 包裝:管件 輸入數目和類型:2 個單端,單極
ISL267450AIHZ-T7A 功能描述:IC ADC 12BIT SPI/SRL 1M 8SOT-23 RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 位數:10 采樣率(每秒):357k 數據接口:DSP,MICROWIRE?,QSPI?,串行,SPI? 轉換器數目:1 功率耗散(最大):830µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN-EP(3x3) 包裝:剪切帶 (CT) 輸入數目和類型:2 個單端,單極;2 個單端,雙極;1 個差分,單極;1 個差分,雙極 產品目錄頁面:1396 (CN2011-ZH PDF) 其它名稱:MAX1395ETB+TCT