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參數(shù)資料
| 型號： | OP279 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Rail-to-Rail High Output Current Operational Amplifier(滿幅度高輸出電流運(yùn)放) |
| 中文描述： | 軌到軌高輸出電流運(yùn)算放大器（滿幅度高輸出電流運(yùn)放） |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 327K |
| 代理商： | OP279 |
OP279
–10–
REV. D
6.2V
6.2V
TRANSMIT
TXA
RECEIVE
RXA
C1
0.1
m
F
R1
10k
V
R2
9.09k
V
2k
V
P1
TX GAIN
ADJUST
A1
A2
A3
A4
A1, A2 = 1/2 OP279
A3, A4 = 1/2 OP279
R3
55
V
R4
55
V
1:1
T1
TO TELEPHONE
LINE
1
2
3
7
6
5
2
3
1
6
5
7
10
m
F
R7
10k
V
R8
10k
V
R5
10k
V
R6
10k
V
R9
10k
V
R14
9.09k
V
R10
10k
V
R11
10k
V
R12
10k
V
R13
10k
V
C2
0.1
m
F
P2
RX GAIN
ADJUST
2k
V
Z
O
110
V
+5V DC
Figure 31. A Single-Supply Direct Access Arrangement for
Modems
A Single-Supply, Remote Strain Gage Signal Conditioner
T he circuit in Figure 32 illustrates a way by which the OP279
can be used in a +12 V single-supply, 350
strain gage signal
conditioning circuit. In this circuit, the OP279 serves two func-
tions: (1) By servoing the output of the REF43’s +2.5 V output
across R1, it provides a 20 mA drive to the 350
strain gauge.
In this way, small changes in the strain gage produce large dif-
ferential output voltages across the AMP04’s inputs. (2) T o
maximize the circuit’s dynamic range, the other half of the
OP279 is configured as a supply-splitter connected to the
REF43
AMP04
0.1
m
F
2
6
4
+2.5V
3
1
8
4
2
A1
7
1
8
6
3
2
4
C
X
C2
0.1
m
F
R4
1k
V
+12V
5
V
O
80mV/
V
V
O
COMMON
R1
124
0.1%, LOW TCR
100-ft TWISTED PAIR
BELDEN TYPE 9502
S+
S–
350
V
STRAIN GAGE
F–
F+
A2
+12V
R2
10k
V
R3
10k
V
C1
10
m
F
7
6
5
+6V
A1, A2 = 1/2 OP279
+12V
20mA DRIVE
Figure 32. A Single-Supply, Remote Strain Gage Signal
Conditioner
AMP04’s REF terminal. T hus, tension or compression in the
application can be measured by the circuit. T he AMP04 is
configured for a gain of 100, producing a circuit sensitivity of
80 mV/
. Capacitor C2 is used across the AMP04’s Pins 8 and
6 to provide a 16-Hz noise filter. If additional noise filtering is
required, an optional capacitor, C
X
, can be used across the
AMP04’s input to provide differential-mode noise rejection.
A Single-Supply, Balanced Line Driver
T he circuit in Figure 33 is a unique line driver circuit topology
used in professional audio applications and has been modified
for automotive audio applications. On a single +12 V supply,
the line driver exhibits less than 0.02% distortion into a 600
load across the entire audio band (not shown). For loads
greater than 600
, distortion performance improves to where
the circuit exhibits less than 0.002%. T he design is a
transformerless, balanced transmission system where output
common-mode rejection of noise is of paramount importance.
Like the transformer-based system, either output can be shorted
to ground for unbalanced line driver applications without
changing the circuit gain of 1. Other circuit gains can be set
according to the equation in the diagram. T his allows the de-
sign to be easily configured for noninverting, inverting, or differ-
ential operation.
R
L
600
V
C1
22
m
F
A2
7
6
5
3
1
2
A1
+12V
R1
10k
V
R2
10k
V
R11
10k
V
R7
10k
V
6
7
5
A1
+12V
+12V
R8
100k
V
R9
100k
V
C2
1
m
F
R12
10k
V
R14
50
V
A2
1
2
3
R3
10k
V
R6
10k
V
R13
10k
V
C3
47
m
F
V
O1
V
O2
C4
47
m
F
A1, A2 = 1/2 OP279
GAIN =R2
SET: R7, R10, R11 = R2
SET: R6, R12, R13 = R3
V
IN
R5
50
V
Figure 33. A Single-Supply, Balanced Line Driver for
Automotive Applications
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP2790006SR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OP279GP | 制造商:Analog Devices 功能描述:OP AMP DUAL HIGH O/P RRI/O 279 制造商:Analog Devices Inc. 功能描述:Rail-to-Rail High Output Current Operational Amplifiers |
| OP279GRU | 制造商:AD 制造商全稱:Analog Devices 功能描述:Rail-to-Rail High Output Current Operational Amplifiers |
| OP279GRU-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 制造商:Rochester Electronics LLC 功能描述:RAIL-RAIL HI OUTPUT OPAMP - Tape and Reel |
| OP279GRUZ-REEL | 功能描述:IC OPAMP GP R-R 5MHZ DUAL 8TSSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓(xùn)模塊:Differential Circuit Design Techniques for Communication Applications 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
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