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參數(shù)資料
| 型號(hào)： | OP470GSZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP 6MHZ QUAD LN 16SOIC |
| 標(biāo)準(zhǔn)包裝： | 47 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 4 |
| 轉(zhuǎn)換速率： | 2 V/µs |
| 增益帶寬積： | 6MHz |
| 電流 - 輸入偏壓： | 25nA |
| 電壓 - 輸入偏移： | 400µV |
| 電流 - 電源： | 9mA |
| 電壓 - 電源，單路/雙路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 772 (CN2011-ZH PDF) |
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REV. B
OP470
–13–
NOISE
DENSITY
–
0.58nV/
Hz/DIV
REFERRED
T
O
INPUT
10
0%
100
90
Figure 14. Noise Density of Low Noise Amplifier, G = 1000
DIGITAL PANNING CONTROL
Figure 15 uses a DAC-8408, quad 8-bit DAC to pan a signal
between two channels. The complementary DAC current out-
puts two of the DAC-8408’s four DACs drive current-to-voltage
converters built from a single quad OP470. The amplifiers have
complementary outputs with the amplitudes dependent upon
the digital code applied to the DAC. Figure 16 shows the comple-
mentary outputs for a 1 kHz input signal and digital ramp applied
to the DAC data inputs. Distortion of the digital panning con-
trol is less than 0.01%.
10
0%
100
90
1ms
5V
A OUT
Figure 16. Digital Panning Control Output
Gain error due to the mismatching between the internal DAC
ladder resistors and the current-to-voltage feedback resistors is
eliminated by using feedback resistors internal to the DAC. Of
the four DACs available in the DAC-8408, only two DACs, A
and C, actually pass a signal. DACs B and D are used to pro-
vide the additional feedback resistors needed in the circuit. If
the VREFB and VREFD inputs remain unconnected, the
current-to-voltage converters using RFBB and RFBD are unaf-
fected by digital data reaching DACs B and D.
1/4
OP470E
+15V
–15V
1/4
OP470E
A OUT
20pF
A OUT
20pF
IOUT1A
DAC A
IOUT1B
DAC B
RFBA
IOUT2A/2B
RFBB
RFBC
1/4
OP470E
B OUT
20pF
DAC C
IOUT1C
1/4
OP470E
B OUT
20pF
IOUT1D
DAC D
RFBD
IOUT2C/2D
VREFA
DAC SELECT
1k
5V
DGND
DS2
DS1
R/W
A/B
VREFC
VDD
DAC-8408GP
SIDE A IN
SIDE B IN
DAC DATA BUS
PINS 9 (LSB) – 16 (MSB)
5V
Figure 15. Digital Panning Control Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP470GSZ-REEL | 功能描述:IC OPAMP GP 6MHZ QUAD LN 16SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| OP471 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Speed, Low Noise Quad Operational Amplifier |
| OP-471 | 制造商:AD 制造商全稱:Analog Devices 功能描述:HIGH SPEED, LOW NOISE QUAD OPERATIONAL AMPLIFIER |
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