參數(shù)資料
型號(hào)： MAX9077ESA+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 6/9頁(yè)
文件大?。?/td> 0K
描述： IC COMPARATOR DUAL 8-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 100
類(lèi)型： 通用
元件數(shù)： 2
輸出類(lèi)型： CMOS，推挽式，滿擺幅，TTL
電壓 - 電源，單路/雙路(±)： 2.1 V ~ 5.5 V
電壓 - 輸入偏移（最小值）： 1mV @ 5V
電流 - 輸入偏壓（最小值）： 0.005µA @ 5V
電流 - 靜態(tài)（最大值）： 6.6µA
CMRR, PSRR（標(biāo)準(zhǔn)）： 82dB CMRR，77dB PSRR
傳輸延遲（最大）： 580ns
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
安裝類(lèi)型： 表面貼裝
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1391 (CN2011-ZH PDF)
MAX9075/MAX9077
Low-Cost, Ultra-Small, 3A
Single-Supply Comparators
6
Maxim Integrated
Pin Description
FUNCTION
NAME
SOT23
MAX9077
MAX/SO
SC70
SOT23
—
1
—
Comparator Output
OUT
1
—
1
4
2
Ground
GND
2
Output of Comparator A
OUTA
—
3
—
3
—
4
Noninverting Input of Comparator A
INA+
—
4
—
2
—
3
Inverting Input of Comparator A
INA-
—
Inverting Comparator Input
IN-
4
Noninverting Comparator Input
IN+
3
8
5
8
Positive Supply Voltage
VCC
5
—
5
6
—
6
Inverting Input of Comparator B
INB-
—
7
—
7
Output of Comparator B
OUTB
—
Noninverting Input of Comparator B
INB+
—
MAX9075
PIN
Detailed Description
The MAX9075/MAX9077 feature a 580ns propagation
delay from an ultra-low supply current of only 3A per
comparator. These devices are capable of single-sup-
ply operation in the 2.1V to 5.5V range. Large internal
output drivers allow rail-to-rail output swing with up to
2mA loads. Both comparators offer a push-pull output
that sinks and sources current.
Comparator Output
The MAX9075/MAX9077 are designed to maintain a
low-supply current during repeated transitions by limit-
ing the shoot-through current.
Noise Considerations, Comparator Input
The input common-mode voltage range for these
devices extends from 0V to VCC - 1.2V. Unlike many
other comparators, the MAX9075/MAX9077 can oper-
ate at any differential input voltage within these limits.
Input bias current is typically -5nA if the input voltage is
between the supply rails.
Although the comparators have a very high gain, useful
gain is limited by noise. The comparator has a wide-
band peak-to-peak noise of approximately 70V.
Applications Information
Adding Hysteresis
Hysteresis extends the comparator’s noise margin by
increasing the upper threshold and decreasing the
lower threshold. A voltage divider from the output of the
comparator sets the trip voltage. Therefore, the trip
voltage is related to the output voltage. Set the hystere-
sis with three resistors using positive feedback, as
shown in Figure 1.
The design procedure is as follows:
1) Choose R3. The leakage current of IN+ may cause a
small error; however, the current through R3 can be
approximately 500nA and still maintain accuracy.
The added supply current due to the circuit at the
trip point is VCC/R3; 10MΩ is a good practical value
for R3, as this keeps the current well below the sup-
ply current of the chip.
2) Choose the hysteresis voltage (VHYS), which is the
voltage between the upper and lower thresholds. In
this example, choose VHYS = 50mV and assume
VREF = 1.2V and VCC = 5V.
3) Calculate R1 as follows:
R1 = R3 x VHYS/VCC = 10MΩ x 0.05/5 = 100kΩ
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9077ESA+ 功能描述:校驗(yàn)器 IC 3uA Single-Supply Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類(lèi)型: 通道數(shù)量: 輸出類(lèi)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
MAX9077ESA+T 功能描述:校驗(yàn)器 IC 3uA Single-Supply Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類(lèi)型: 通道數(shù)量: 輸出類(lèi)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
MAX9077ESA-T 功能描述:校驗(yàn)器 IC 3uA Single-Supply Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類(lèi)型: 通道數(shù)量: 輸出類(lèi)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
MAX9077EUA 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類(lèi)型: 通道數(shù)量: 輸出類(lèi)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
MAX9077EUA+ 功能描述:校驗(yàn)器 IC 3uA Single-Supply Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類(lèi)型: 通道數(shù)量: 輸出類(lèi)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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