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參數(shù)資料
| 型號： | THS6002EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS |
| 中文描述： | 雙差分線路驅動與接收 |
| 文件頁數(shù)： | 25/40頁 |
| 文件大?。?/td> | 718K |
| 代理商： | THS6002EVM |
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THS6002
DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLOS202D– JANUARY 1998– REVISED JULY 1999
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
power supply restrictions
Although the THS6002 is specified for operation from power supplies of
±
5 V to
±
15 V (or singled-ended power
supply operation from 10 V to 30 V), and each amplifier has its own power supply pins, several precautions must
be taken to assure proper operation.
1.
The power supplies for each amplifier must be the same value. For example, if the drivers use
±
15 volts,
then the receivers must also use
±
15 volts. Using
±
15 volts for one amplifier and
±
5 volts for another
amplifier is not allowed.
2.
To save power by powering down some of the amplifiers in the package, the following rules must be
followed.
The amplifier designated Receiver 1 must always receive power whenever any other amplifier(s) within
the package is used. This is because the internal startup circuitry uses the power from the Receiver 1
device.
The –V
CC
pins from all four devices must always be at the same potential.
Individual amplifiers are powered down by simply opening the +V
CC
connection.
As an example, if only the two drivers within the THS6002 are used, then the package power is reduced by
removing the +V
CC
connection to Receiver 2. This reduces the power consumption by an amount equal to the
quiescent power of a single receiver amplifier. The +V
CC
connections to Receiver 1 and both drivers are
required. Also, all four amplifiers must be connected to –V
CC
, including Receiver 2.
The THS6002 incorporates a standard Class A-B output stage. This means that some of the quiescent current
is directed to the load as the load current increases. So under heavy load conditions, accurate power dissipation
calculations are best achieved through actual measurements. For small loads, however, internal power
dissipation for each amplifier in the THS6002 can be approximated by the following formula:
PD
2 VCCICC
VCC_ VO
VO
RL
Where:
P
D
V
CC
= split supply voltage
I
CC
= supply current for that particular amplifier
V
O
= output voltage of amplifier
R
L
= load resistance
= power dissipation for one amplifier
To find the total THS6002 power dissipation, we simply sum up all four amplifier power dissipation results.
Generally, the worst case power dissipation occurs when the output voltage is one-half the V
CC
voltage. One
last note, which is often overlooked: the feedback resistor (R
F
) is also a load to the output of the amplifier and
should be taken into account for low value feedback resistors.
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| THS6182DWRG4 | LOW-POWER DISSIPATION ADSL LINE DRIVER |
| TIED87 | REFERENCE DIODE PAIRS |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| THS6002IDWP | 功能描述:緩沖器和線路驅動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWP | 制造商:Texas Instruments 功能描述:TRANSCEIVER DUAL SMD 6002 SOIC20 |
| THS6002IDWPG4 | 功能描述:緩沖器和線路驅動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPR | 功能描述:緩沖器和線路驅動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPRG4 | 功能描述:緩沖器和線路驅動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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