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參數(shù)資料
| 型號(hào)： | OPA551 |
| 英文描述： | High-Voltage. High-Current Operational Amplifiers |
| 中文描述： | 高電壓。大電流運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 14/15頁(yè) |
| 文件大?。?/td> | 210K |
| 代理商： | OPA551 |
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14
OPA551, OPA552
The offset voltage (V
OS
) of the OPA51 and OPA552 is
specified with a
±
30V power supply and the common-
mode voltage centered between the supplies (V
S
/2 =
0V). Additional specifications for power supply rejec-
tion and common-mode rejection are provided to allow
the user to easily calculate worst-case excepted offset
under the conditions of a given application.
Power Supply Rejection Ratio (PSRR) is specified in
μ
V/V. For the OPA551 and OPA552, worst-case PSRR
is 30
μ
V/V, which means for each volt of change in total
power supply voltage, the offset may shift by up to
30
μ
V/V. Common-Mode Rejection Ratio (CMRR) is
specified in dB, which can be converted to
μ
V/V using
the following equation:
CMRR in (V/V) = 10
[(CMRR in dB)/–20]
(1)
For the OPA551 and OPA552, the worst-case CMRR at
±
30mV supply over the full common-mode range is
96dB, or approxmately 15.8
μ
V/V. This means that for
every volt of change in common-mode, the offset may
shift up to 15.8
μ
V. These numbers can be used to
OFFSET VOLTAGE ERROR CALCULATION
calculate excursions from the specified offset voltage
under different applications conditions. For example, a
common application might configure the amplifier with
a –48 single supply with –6V common-mode. This
configuration represents a 12V variation in power sup-
ply:
±
30V or 60V in the offset specification versus 48V
in the application. In addition, this configuration has an
18V variation in common-mode voltage: V
S
/2 = –24V is
the specification for these power supplies, but the com-
mon-mode voltage is –6V in the application.
Calculation of the worst-case expected offset would be
as follows:
Worst-case V
OS
=
maximum specified V
OS
+ (power supply variation PSRR
+ (common-mode variation CMRR)
(2)
V
OSwc
= 5mV + (12V 30
μ
V/V) + (18V 15.8
μ
V/V)
=
±
5.64mV
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA551/OPA552 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:OPA551. OPA552 - High-Voltage. High-Current OPERATIONAL AMPLIFIERS |
| OPA5516 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Pure Green LED Chip |
| OPA551FA | 制造商:Texas Instruments 功能描述:Operational Amplifier, Single AMP, Bipolar, 7 Pin, Plastic, SIP |
| OPA551FA/500 | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Volt High-Crnt Oper Amplifier RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| OPA551FA/500G3 | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Volt High-Crnt Oper Amplifier RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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