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參數(shù)資料
| 型號： | OP471GP |
| 廠商： | PRECISION MONOLITHICS INC |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | High Speed, Low Noise Quad Operational Amplifier |
| 中文描述： | QUAD OP-AMP, 2500 uV OFFSET-MAX, 6.5 MHz BAND WIDTH, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 314K |
| 代理商： | OP471GP |
REV. A
OP471
–12–
Quad Programmable Gain Amplifier
The combination of the quad OP471 and the DAC8408, a quad
8-bit CMOS DAC, creates a space-saving quad programmable gain
amplifier. The digital code present at the DAC, which is easily
set by a microprocessor, determines the ratio between the fixed
DAC feedback resistor and the impedance the DAC ladder presents
to the op amp feedback loop. Gain of each amplifier is:
V
V
IN
= –256
n
OUT
where n equals the decimal equivalent of the 8-bit digital code
present at the DAC. If the digital code present at the DAC
consists of all zeros, the feedback loop will be open causing the
op amp output to saturate. The 20 M
W
resistors placed in parallel
with the DAC feedback loop eliminates this problem with a very
small reduction in gain accuracy.
1/4
OP470E
+15V
–15V
V
OUT
A
I
OUT1A
DAC A
V
REF
I
OUT2A/2B
R
FB
A
DGND
V
DD
DAC-8408ET
V
IN
A
DAC DATA BUS
PINS 9 (LSB) – 16 (MSB)
R1
20M
1/4
OP470E
V
OUT
B
I
OUT1B
DAC B
V
REF
R
FB
B
V
IN
B
R2
20M
1/4
OP470E
V
OUT
C
I
OUT1C
DAC C
V
REF
R
FB
C
V
IN
C
R3
20M
1/4
OP470E
V
OUT
D
I
OUT1D
V
REF
R
FB
D
V
IN
D
R4
20M
DAC D
I
OUT2C/2D
A
B
C
D
Figure 17. Quad Programmable Gain Amplifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OP471GS | High Speed, Low Noise Quad Operational Amplifier |
| P-DSO-20 | integrated modulator-mixer for transmit path |
| P0102BL-5AA4 | 0.25A SCRs |
| P0102AL5AA4 | MCU CMOS 40 LD 4MHZ 4K EPRM, -40C to +125C, 40-PDIP, TUBE |
| P0102XX | MCU CMOS 40 LD 20MHZ 4K EPRM, 0C to +70C, 40-PDIP, TUBE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP-471GP | 制造商:AD 制造商全稱:Analog Devices 功能描述:HIGH SPEED, LOW NOISE QUAD OPERATIONAL AMPLIFIER |
| OP471GPZ | 制造商:Analog Devices 功能描述:OP Amp Quad GP ±18V 14-Pin PDIP N 制造商:Analog Devices 功能描述:OP AMP QUAD LOW NOISE DIP14 471 |
| OP471GS | 功能描述:IC OPAMP GP 6.5MHZ QUAD 16SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:帶卷 (TR) |
| OP-471GS | 制造商:AD 制造商全稱:Analog Devices 功能描述:HIGH SPEED, LOW NOISE QUAD OPERATIONAL AMPLIFIER |
| OP471GS-REEL | 功能描述:IC OPAMP GP 6.5MHZ QUAD 16SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
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