參數(shù)資料
型號(hào): LMX393HAKA+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 7/9頁(yè)
文件大?。?/td> 0K
描述: IC COMPARATOR GP DUAL SOT23-8
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
類型: 通用
元件數(shù): 2
輸出類型: 開(kāi)路漏極
電壓 - 電源,單路/雙路(±): 1.8 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)): 73mA @ 5V
電流 - 靜態(tài)(最大值): 200µA
CMRR, PSRR(標(biāo)準(zhǔn)): 70dB PSRR
傳輸延遲(最大): 600ns
磁滯: 2mV
工作溫度: -40°C ~ 125°C
封裝/外殼: SOT-23-8
安裝類型: 表面貼裝
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 1385 (CN2011-ZH PDF)
其它名稱: LMX393HAKA+TDKR
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
_______________________________________________________________________________________
7
Detailed Description
The LMX331/LMX393/LMX339 are single/dual/quad,
low-cost, general-purpose comparators. They have a
single-supply operating voltage of 1.8V to 5V. The com-
mon-mode input range extends from -0.1V below the
negative supply to within 0.7V of the positive supply.
They require approximately 60A per comparator with
a 5V supply and 40A with a 2.7V supply.
The LMX331H/LMX393H/LMX339H have 2mV of hys-
teresis for noise immunity. This significantly reduces the
chance of output oscillations even with slow-moving
input signals. The LMX331/LMX393/LMX339 and
LMX331H/LMX393H/LMX339H are ideal for automotive
applications because they operate from -40
°C to
+125
°C (see Typical Operating Characteristics).
Applications Information
Hysteresis
Many comparators oscillate in the linear region of oper-
ation because of noise or undesired parasitic feed-
back. This tends to occur when the voltage on one
input is equal or very close to the voltage on the other
input. The LMX331H/LMX393H/LMX339H have internal
hysteresis to counter parasitic effects and noise.
The hysteresis in a comparator creates two trip points:
one for the rising input voltage and one for the falling
input voltage (Figure 1). The difference between the trip
points is the hysteresis. When the comparator's input
voltages are equal, the hysteresis effectively causes
one comparator input to move quickly past the other,
thus taking the input out of the region where oscillation
occurs. This provides clean output transitions for noisy,
slow-moving input signals.
Additional hysteresis can be generated with two resis-
tors, using positive feedback (Figure 2). Use the follow-
ing procedure to calculate resistor values:
OUT
IN-
THRESHOLDS
IN+
HYSTERESIS
BAND
VHYST
VTL
VTH
Figure 1. Threshold Hysteresis Band (Not to Scale)
PIN
LMX331
LMX393
LMX339
NAME
FUNCTION
1
IN+
Noninverting Input
2
4
12
VSS
Negative Supply (Connect to GND)
3
IN-
Inverting Input
4
OUT
Comparator Output (Open-Drain)
5
83VDD
Positive Supply
1
2
OUTA
Comparator A Output (Open-Drain)
7
1
OUTB
Comparator B Output (Open-Drain)
2
4
INA-
Comparator A Inverting Input
3
5
INA+
Comparator A Noninverting Input
5
7
INB+
Comparator B Noninverting Input
6
INB-
Comparator B Inverting Input
8
INC-
Comparator C Inverting Input
9
INC+
Comparator C Noninverting Input
10
IND-
Comparator D Inverting Input
11
IND+
Comparator D Noninverting Input
13
OUTD
Comparator D Output (Open-Drain)
14
OUTC
Comparator C Output (Open-Drain)
Pin Description
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LMX393HAUA 功能描述:校驗(yàn)器 IC Low-Voltage Dual TinyPack RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
LMX393HAUA+ 功能描述:校驗(yàn)器 IC Low-Voltage Dual TinyPack RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
LMX393HAUA+T 功能描述:校驗(yàn)器 IC Low-Voltage Dual TinyPack RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓(最大值):6 mV 電源電流(最大值):1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
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