APPLICATIONS INF" />
參數(shù)資料
型號: LTC1540CMS8
廠商: Linear Technology
文件頁數(shù): 9/12頁
文件大?。?/td> 0K
描述: IC COMP NANOPOWER W/REF 8-MSOP
標(biāo)準(zhǔn)包裝: 50
類型: 帶電壓基準(zhǔn)
元件數(shù): 1
輸出類型: CMOS,TTL
電壓 - 電源,單路/雙路(±): 2 V ~ 11 V,±1 V ~ 5.5 V
電壓 - 輸入偏移(最小值): 12mV @ 5V
電流 - 靜態(tài)(最大值): 680nA
CMRR, PSRR(標(biāo)準(zhǔn)): 80dB CMRR,80dB PSRR
傳輸延遲(最大): 60µs
磁滯: 50mV
工作溫度: 0°C ~ 70°C
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
安裝類型: 表面貼裝
包裝: 管件
6
LTC1540
sn1540 1540fas
APPLICATIONS INFORMATION
WU
U
V +
R1
430
R2
10k
C1
1F
5V
TO
8V
OUT
V
21
7
8
GND
LTC1540
1540 F03a
IN+
IN
HYST
REF
3
4
5
6
R3
2.4M
+
LTC1540
V
REF
R1
C1
REFERENCE
OUTPUT
1540 F01
Figure 1. Damping the Reference Output
Figure 2. Damping Resistance vs Bypass Capacitor Value
Figure 3 shows the bypassed reference output with a
square wave applied to the V + pin. Resistors R2 and R3 set
10mV of hysteresis voltage band while R1 damps the
reference response. Note that the comparator output
doesn’t trip.
Low Voltage Operation: V + = 1.6V
The guaranteed minimum operating voltage is 2V (or
±1V). As the total supply voltage is reduced below 2V, the
performance degrades and the supply current falls. At low
supply voltages, the comparator’s output drive is reduced
and the propagation delay increases. The VREF and VOS are
also slightly worse. The useful input voltage range extends
from the negative supply to 0.9V below the positive
supply.
Test
your
prototype
over
the
full
temperature and supply voltage range if operation below
2V is anticipated. Because of the increase in supply
current, operation below 1.5V is not recommended
(Figure 4).
Figure 4. Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
SUPPLY
CURRENT
(
A)
3
4
5
2.0
1540 F04
2
1
0
0.5
1.0
1.5
2.5
V = GND = 0V
IN+ = 0V
IN= REF = HYST
TA = 25°C
Figure 3a. Power Supply Transient Test Circuit
CAPACITOR VALUE (F)
0.001
0.1
RESISTOR
VALUE
(k
)
10
1000
0.01
0.1
10
1
1540 F02
1
100
Figure 3b. Power Supply Transient Rejection
2mV/
DIV
2ms/DIV
1540 F03b
8V
V +
5V
VREF
OUT
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參數(shù)描述
LTC1540CMS8#PBF 功能描述:IC COMP NANOPOWER W/REF 8-MSOP 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)品目錄頁面:1268 (CN2011-ZH PDF) 其它名稱:*LMV331M5*LMV331M5/NOPBLMV331M5CT
LTC1540CMS8#PBF 制造商:Linear Technology 功能描述:Micropower Comparator IC 制造商:Linear Technology 功能描述:IC, MICROPOWER COMP, SINGLE, 50 uS MSOP-8
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LTC1540CMS8PBF 制造商:Linear Technology 功能描述:Comparator Single +/-5.5V/11V MSOP8