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參數資料
型號: OP490FY
廠商: ANALOG DEVICES INC
元件分類: 運動控制電子
英文描述: Low Voltage Micropower Quad Operational Amplifier
中文描述: QUAD OP-AMP, 1350 uV OFFSET-MAX, 0.02 MHz BAND WIDTH, CDIP14
封裝: HERMETIC SEALED, CERDIP-14
文件頁數: 9/12頁
文件大?。?/td> 241K
代理商: OP490FY
OP490
REV. B
–9–
MICROPOWE R VOLT AGE -CONT ROLLE D OSCILLAT OR
An OP490 in combination with an inexpensive quad CMOS
switch comprise the precision V
CO
of Figure 2. T his circuit pro-
vides triangle and square wave outputs and draws only 75
μ
A
from a 5 V supply. A acts as an integrator; S1 switches the
charging current symmetrically to yield positive and negative
ramps. T he integrator is bounded by B which acts as a Schmitt
trigger with a precise hysteresis of 1.67 volts, set by resistors R5,
R6, and R7, and associated CMOS switches. T he resulting out-
put of A is a triangle wave with upper and lower levels of 3.33
and 1.67 volts. T he output of B is a square wave with almost
rail-to-rail swing. With the components shown, frequency of op-
eration is given by the equation:
f
OUT
=
V
CONTROL
(
Volts
)
×
10
Hz
/
V
but this is easily changed by varying C1. T he circuit operates
well up to a few hundred hertz.
Figure 2. Micropower Voltage Controlled Oscillator
相關PDF資料
PDF描述
OP490AY Low Voltage Micropower Quad Operational Amplifier
OP490EY Low Voltage Micropower Quad Operational Amplifier
OP490GP Low Voltage Micropower Quad Operational Amplifier
OP490GS Low Voltage Micropower Quad Operational Amplifier
OP490 Low Voltage Micropower Quad Operational Amplifier
相關代理商/技術參數
參數描述
OP490G 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Voltage Micropower Quad Operational Amplifier
OP490GBC 制造商:Analog Devices 功能描述:
OP490GP 制造商:Rochester Electronics LLC 功能描述:MICROPOWER QUAD OP AMP IC - Bulk 制造商:Analog Devices 功能描述:OP AMP QUAD MICROPOWER DIP14 490
OP490GPZ 功能描述:IC OPAMP GP 20KHZ QUAD 14DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:4 輸出類型:- 轉換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源,單路/雙路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR
OP490GS 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:IC OP AMP QUAD MICROPOWER SOIC16
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