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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: 11/12頁
文件大?。?/td> 241K
代理商: OP490FY
OP490
REV. B
–11–
Figure 4. High Output Amplifier
HIGH OUT PUT AMPLIFIE R
T he amplifier shown in Figure 4 is capable of driving 25 V p-p
into a 1 k
load. Design of the amplifier is based on a bridge
configuration. A amplifies the input signal and drives the load
with the help of B. Amplifier C is a unity-gain inverter which
drives the load with help from D. Gain of the high output am-
plifier with the component values shown is 10, but can easily be
changed by varying R1 or R2.
SINGLE -SUPPLY MICROPOWE R QUAD
PROGRAMMABLE GAIN AMPLIFIE R
T he combination of quad OP490 and the DAC8408 quad 8-bit
CMOS DAC, creates a quad programmable-gain amplifier with
a quiescent supply drain of only 140
μ
A. T he digital code
present at the DAC, which is easily set by a microprocessor, de-
termines the ratio between the fixed DAC feedback resistor and
the resistance of the DAC ladder presents to the op amp feed-
back loop. Gain of each amplifier is:
V
OUT
V
IN
=
±256
n
where
n
equals the decimal equivalent of the 8-bit digital code
present at the DAC. If the digital code present at the DAC con-
sists of all zeros, the feedback loop will be open causing the op
amp output to saturate. T he 10 M
resistors placed in parallel
with the DAC feedback loop eliminates this problem with a very
small reduction in gain accuracy. T he 2.5 V reference biases the
amplifiers to the center of the linear region providing maximum
output swing.
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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