參數(shù)資料
型號： MAX9017BEKA+T
廠商： Maxim Integrated Products
文件頁數(shù)： 5/17頁
文件大小： 0K
描述： IC COMPARATOR DUAL SOT23-8
產品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 1
系列： Beyond-the-Rails™
類型： 帶電壓基準
元件數(shù)： 2
輸出類型： CMOS，推挽式，滿擺幅
電壓 - 電源，單路/雙路(±)： 1.8 V ~ 5.5 V
電壓 - 輸入偏移（最小值）： 5mV @ 5V
電流 - 輸入偏壓（最小值）： 0.001µA @ 5V
電流 - 輸出（標準）： 50mA
電流 - 靜態(tài)（最大值）： 2.8µA
CMRR, PSRR（標準）： 80dB PSRR
傳輸延遲（最大）： 28µs
磁滯： 4mV
工作溫度： -40°C ~ 85°C
封裝/外殼： SOT-23-8
安裝類型： 表面貼裝
包裝： 標準包裝
產品目錄頁面： 1391 (CN2011-ZH PDF)
其它名稱： MAX9017BEKA+TDKR
MAX9015–MAX9020
SOT23, Dual, Precision, 1.8V, Nanopower
Comparators With/Without Reference
13
Maxim Integrated
6) Verify the trip voltages and hysteresis as follows:
VIN rising: = 2.992V, which is equivalent to REF
times R1 divided by the parallel combination of R1,
R2:
and R3.
VIN falling: = 2.942V:
Hysteresis = VTHR - VTHF = 50mV.
Additional Hysteresis
(MAX9016/MAX9018/MAX9020)
(Open-Drain Outputs)
The MAX9016/MAX9018/MAX9020 feature a built-in 4mV
hysteresis band. These devices have open-drain outputs
and require an external pullup resistor (Figure 3).
Additional hysteresis can be generated using positive
feedback, but the formulas differ slightly from those of
the MAX9015/MAX9017/MAX9019. Use the following
procedure to calculate resistor values:
1) Select R3. Input bias current at IN_+ is less than
2nA, so the current through R3 should be at least
0.2A to minimize errors caused by input bias cur-
rent. The current through R3 at the trip point is
(VREF - VOUT)/R3. Considering the two possible out-
put states in solving for R3 yields two formulas: R3
= VREF/IR3 or R3 = [(VCC - VREF)/IR3] - R4. Use the
smaller of the two resulting resistor values. For
example, when using the MAX9018 (VREF = 1.24V)
and VCC = 5V, and if we choose IR3 = 0.2A, and
R4 = 1M
Ω, then the two resistor values are 6.2MΩ
and 18M
Ω. Choose a 6.2MΩ standard value for R3.
2) Choose the hysteresis band required (VHB).
3) Calculate R1 according to the following equation.
For this example, insert the values:
4) Choose the trip point for VIN rising (VTHR) such that:
(VTHR is the trip point for VIN rising). This is the
threshold voltage at which the comparator switches
its output from low to high as VIN rises above the
trip point. For this example, choose 3V:
5) Calculate R2 as follows:
For this example, choose a 49.9k
Ω standard value.
6) Verify the trip voltages and hysteresis as follows:
Hysteresis = VTHR - VTHF = 50mV.
V
falling V
V
x R
RR
R
RR
xV
V
IN
THF
REF
CC
:
.
=
+
+
+
=
1
2
1
3
1
34
2 993
Vri
g V
V
x R
RR
R
V
IN
THR
REF
sin :
.
=
+
+
=
1
2
1
3
3 043
R
V
Vx
k
M
k
2
1
30
124
72
1
72
1
62
51 1
=
Ω
Ω
Ω
=Ω
.
..
.
R
V
Vx R
R
THR
REF
2
1
3
=
VV
V
THR
REF
HB
CC
>+
1
RM
M
mV
V
k
16 2
1
50
5
72
=Ω +
Ω
=Ω
(.
)
RR
R
V
HB
CC
13
4
=+
()
VV
Rx V
R
THF
THR
CC
=
1
3
VV
x R
RR
R
THR
REF
=
+
+
1
2
1
3
VEE
VCC
OUT
R3
R2
R1
R4
VREF
VIN
VCC
MAX9016
MAX9018
MAX9020
Figure 3. MAX9016/MAX9018/MAX9020 Additional Hysteresis
相關PDF資料
PDF描述
LTC6702CDC#TRMPBF IC COMP LOW VOLT 8-DFN
VI-22Y-MY-B1 CONVERTER MOD DC/DC 3.3V 33W
MCP3302-CI/ST IC ADC 13BIT 2.7V 2CH SPI14TSSOP
VI-22Y-MX-B1 CONVERTER MOD DC/DC 3.3V 49.5W
VI-22Y-MW-B1 CONVERTER MOD DC/DC 3.3V 66W
相關代理商/技術參數(shù)
參數(shù)描述
MAX9018 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:SOT23, Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference
MAX9018A 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:SOT23, Dual, Precision, 1.8V, Nanopower Comparators With/Without Reference
MAX9018AAAKA+T 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX9018AEKA 制造商:Maxim Integrated Products 功能描述:SOT23 DUAL PRECISION 1.8V NANOPOWER COMPARATORS WITH/WITHOUT - Bulk
MAX9018AEKA+ 制造商:Maxim Integrated Products 功能描述:COMPARATOR 2 R-R O/P 5.5V 8PIN SOT-23 - Rail/Tube
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*