参数资料
| 型号： | OP470EY |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP 6MHZ QUAD LN 14CDIP |
| 标准包装： | 25 |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 转换速率： | 2 V/µs |
| 增益带宽积： | 6MHz |
| 电流 - 输入偏压： | 6nA |
| 电压 - 输入偏移： | 100µV |
| 电流 - 电源： | 9mA |
| 电压 - 电源，单路/双路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 14-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-CERDIP |
| 包装： | 管件 |
| 产品目录页面： | 772 (CN2011-ZH PDF) |
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
相关PDF资料 |
PDF描述 |
|---|---|
| 929836-02-04-RK | CONN HEADER .100 DUAL STR 8POS |
| OP400EY | IC OPAMP GP 500KHZ QUAD 14CDIP |
| 929835-01-26-RK | CONN HEADER .100 SNGL R/A 26POS |
| LT2079AIS#PBF | IC OPAMP MICROPOWER QUAD 14SOIC |
| 929834-05-15-RK | CONN HEADER .100 SNGL STR 15POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| OP-470EY | 制造商:AD 制造商全称:Analog Devices 功能描述:VERY LOW NOISE QUAD OPERATIONAL AMPLIFIER |
| OP470FY | 制造商:Analog Devices 功能描述: |
| OP-470FY | 制造商:AD 制造商全称:Analog Devices 功能描述:VERY LOW NOISE QUAD OPERATIONAL AMPLIFIER |
| OP470G | 制造商:Analog Devices 功能描述: |
| OP-470G | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual/Quad Low Noise, Precision Operational Amplifiers |
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