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參數(shù)資料
| 型號： | AD8532 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Cost, 250 mA Output Single-Supply Amplifiers(低成本,250mA輸出,單電源雙放大器) |
| 中文描述： | 低成本，250 mA輸出單電源放大器（低成本，250mA的輸出，單電源雙放大器） |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 220K |
| 代理商： | AD8532 |
AD8531/AD8532/AD8534
REV. A
–13–
Direct Access Arrangement for T elephone Line Interface
Figure 42 illustrates a +5 V only transmit/receive telephone line
interface for 600
transmission systems. It allows full duplex
transmission of signals on a transformer coupled 600
line in a
differential manner. Amplifier A1 provides gain that can be ad-
justed to meet the modem output drive requirements. Both A1
and A2 are configured to apply the largest possible signal on a
single supply to the transformer. Because of the high output
current drive and low dropout voltage of the AD8531/AD8532/
AD8534s, the largest signal available on a single +5 V supply is
approximately 4.5 V p-p into a 600
transmission system.
Amplifier A3 is configured as a difference amplifier for two rea-
sons: (1) It prevents the transmit signal from interfering with
the receive signal and (2) it extracts the receive signal from the
transmission line for amplification by A4. A4’s gain can be ad-
justed in the same manner as A1’s to meet the modem’s input
signal requirements. Standard resistor values permit the use of
SIP (Single In-line Package) format resistor arrays. Couple this
with the AD8531/AD8532/AD8534’s 8-pin SOIC or T SSOP
footprint and this circuit offers a compact, cost-sensitive solution.
6.2V
6.2V
TRANSMIT
TXA
RECEIVE
RXA
C1
0.1μF
R1
10k
R2
9.09k
2k
P1
TX GAIN
ADJUST
A1
A2
A3
A4
A1, A2 = 1/2 AD8532
A3, A4 = 1/2 AD8532
R3
360
1:1
T1
TO TELEPHONE
LINE
1
2
3
7
6
5
2
3
1
6
5
7
10μF
R7
10k
R8
10k
R5
10k
R6
10k
R9
10k
R14
14.3k
R10
10k
R11
10k
R12
10k
R13
10k
C2
0.1μF
P2
RX GAIN
ADJUST
2k
Z
O
600
+5V DC
MIDCOM
671-8005
Figure 42. A Single-Supply Direct Access Arrange-
ment for Modems
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| AD8539 | Low Power, Precision, Auto-Zero Op Amps |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8532AN | 制造商:Analog Devices 功能描述:OP AMP DUAL HIGH O/P RRI/O 8532 |
| AD8532AR | 功能描述:IC OPAMP GP R-R CMOS 3MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉換速率:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:管件 |
| AD8532ARM | 制造商:Analog Devices 功能描述: |
| AD8532ARM-R2 | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 6V 8-Pin MSOP T/R |
| AD8532ARM-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 6V 8-Pin MSOP T/R 制造商:Rochester Electronics LLC 功能描述:CMOS RAIL/RAIL INPUT/OUTPUT OP AMP - Tape and Reel |
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