參數(shù)資料
型號(hào): AD8564AR-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 2/12頁(yè)
文件大?。?/td> 0K
描述: IC COMP QUAD 7NS ULT-FAST 16SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 通用
元件數(shù): 4
輸出類型: CMOS,TTL
電壓 - 輸入偏移(最小值): 7mV @ 5V
電流 - 輸入偏壓(最小值): 4µA @ 5V
電流 - 靜態(tài)(最大值): 14mA,14mA,7mA
CMRR, PSRR(標(biāo)準(zhǔn)): 85dB CMRR,80dB PSRR
傳輸延遲(最大): 9.8ns
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
安裝類型: 表面貼裝
包裝: 帶卷 (TR)
AD8564
Rev. B | Page 10 of 12
USING HYSTERESIS
Hysteresis can easily be added to a comparator through the
addition of positive feedback. Adding hysteresis to a comparator
offers an advantage in noisy environments where it is not desirable
for the output to toggle between states when the input signal is
near the switching threshold. Figure 17 shows a method for
configuring the AD8564 with hysteresis.
COMPARATOR
SIGNAL
R1
R2
VREF
CF
0
1
10
3-
0
17
Figure 17. Configuring the AD8564 with Hysteresis
The input signal is connected directly to the inverting input of
the comparator. The output is fed back to the noninverting
input through R2 and R1. The ratio of R1 to R1 + R2 and the
output swing establishes the width of the hysteresis window,
with VREF setting the center of the window or the average
switching voltage. The output switches high when the input
voltage is greater than VHI and does not switch low again until
the input voltage is less than VLO, as given in Equation 2.
(
)
REF
HI
V
R2
R1
V
+
=
+
1
(1)
+
=
R2
R1
V
REF
LO
1
(2)
where V+ is the positive supply voltage.
The CF capacitor may also be added to introduce a pole into
the feedback network. This has the effect of increasing the
amount of hysteresis at high frequencies. This can be useful
when comparing a relatively slow signal in a high frequency
noise environment.
At frequencies greater than
R2
C
f
F
P
π
=
2
1
, the hysteresis
window approaches VHI = V+ – 1 V and VLO = 0 V.
At frequencies less than fP, the threshold voltages remain as it is
in Equation 1.
相關(guān)PDF資料
PDF描述
AD8564AR-REEL IC COMP QUAD 7NS ULT-FAST 16SOIC
AD7888ARZ IC ADC 12BIT 8CH SRL 16-SOIC
ISL32470EIBZ IC TXRX RS485 FAULT PROT 14SOIC
LTC2412CGN#PBF IC ADC 2CH DIFF-IN 24BIT 16SSOP
LT1016IS8#TR IC COMPARATOR 10NS HI SPD 8SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8564ARU 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad 7 ns Single Supply Comparator
AD8564ARU-REEL 功能描述:IC COMP QUAD 7NS FAST 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS,推挽式,滿擺幅,TTL 電壓 - 電源,單路/雙路(±):2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V 電壓 - 輸入偏移(最小值):5mV @ 5.5V 電流 - 輸入偏壓(最小值):1pA @ 5.5V 電流 - 輸出(標(biāo)準(zhǔn)):- 電流 - 靜態(tài)(最大值):24µA CMRR, PSRR(標(biāo)準(zhǔn)):80dB CMRR,80dB PSRR 傳輸延遲(最大):450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA,CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586
AD8564ARUZ 制造商:Analog Devices 功能描述:
AD8564ARUZ-REEL 功能描述:IC COMP 7NS FAST QUAD 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS,開路集電極,TTL 電壓 - 電源,單路/雙路(±):2.7 V ~ 5.5 V 電壓 - 輸入偏移(最小值):7mV @ 5V 電流 - 輸入偏壓(最小值):0.25µA @ 5V 電流 - 輸出(標(biāo)準(zhǔn)):84mA @ 5V 電流 - 靜態(tài)(最大值):120µA CMRR, PSRR(標(biāo)準(zhǔn)):- 傳輸延遲(最大):600ns 磁滯:- 工作溫度:-40°C ~ 85°C 封裝/外殼:SC-74A,SOT-753 安裝類型:表面貼裝 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1268 (CN2011-ZH PDF) 其它名稱:*LMV331M5*LMV331M5/NOPBLMV331M5CT
AD8564ARZ 功能描述:IC COMPARATOR QUAD 7NS 16-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS,開路集電極,TTL 電壓 - 電源,單路/雙路(±):2.7 V ~ 5.5 V 電壓 - 輸入偏移(最小值):7mV @ 5V 電流 - 輸入偏壓(最小值):0.25µA @ 5V 電流 - 輸出(標(biāo)準(zhǔn)):84mA @ 5V 電流 - 靜態(tài)(最大值):120µA CMRR, PSRR(標(biāo)準(zhǔn)):- 傳輸延遲(最大):600ns 磁滯:- 工作溫度:-40°C ~ 85°C 封裝/外殼:SC-74A,SOT-753 安裝類型:表面貼裝 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1268 (CN2011-ZH PDF) 其它名稱:*LMV331M5*LMV331M5/NOPBLMV331M5CT