參數(shù)資料
型號(hào): BA3131FS
廠商: Rohm CO.,LTD.
英文描述: ER 14C 14#16 PIN PLUG
中文描述: 雙運(yùn)算放大器,開關(guān),音頻使用(3輸入1輸出】】2)
文件頁數(shù): 4/9頁
文件大?。?/td> 110K
代理商: BA3131FS
BA3131FS
Standard ICs
!
Measurement conditions
(Figure 1)
Measurement Item
EK
Equation
Input offset voltage
8
ON
ON
OFF OFF
1
Input offset current
8
OFF OFF OFF OFF
2
Input bias current
8
OFF
ON
OFF OFF
3
ON
OFF
High-amplitude voltage gain
8
5.5
ON
ON
ON
OFF
4
2.5
8
6
8
ON
ON
OFF OFF
5
8
2
0
Power supply voltage
rejection ratio
6
ON
ON
OFF OFF
6
18
Common-mode signal rejection ratio
(Common-mode input voltage)
V
CC
VR
Vref
Vref
Vref
Vref
Vref
Vref
VF1
VF
VF2
VF3
VF4
VF5
VF6
VF7
VF8
VF9
VF10
S1
S2
S3
S4
!
Equations
(1) Input offset voltage (Vio)
Vio = | VF1 | / (1 + Rf / Rs)
(2) Input offset current (Iio)
Iio = | VF2 - VF1 | / (Ri (1 + Rf / Rs) )
(3) Input bias current (Ib)
Ib = | VF4 - VF3 | / (2 Ri (1 + Rf / Rs) )
(4) High-amplitude voltage gain (Avol)
Avol = 20log (3 (1 + Rf / Rs) / | VF6 - VF5 | ) (dB)
(5) In-phase signal rejection ratio (CMRR)
CMRR = 20log (4 (1 + Rf / Rs) / | VF8 - VF7 | ) (dB)
(6) (In-phase input voltage range) (PSRR)
PSRR = 20log (12 (1 + Rf / Rs) / | VF10 - VF9 | ) (dB)
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