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BU7231G-TR датащи(PDF) 11 Page - Rohm

номер детали BU7231G-TR
подробное описание детали  Low Voltage CMOS Comparator
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производитель  ROHM [Rohm]
домашняя страница  http://www.rohm.com
Logo ROHM - Rohm

BU7231G-TR датащи(HTML) 11 Page - Rohm

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Schematic diagram
Test circuit1 NULL method
VDD,VSS,EK,Vicm, Unit : [V]
Parameter
VF
S1
S2
S3
VDD
VSS
EK
Vicm
Calculation
Input offset voltage
VF1
ON
ON
OFF
3
0
-0.1
0.3
1
VF2
-0.3
Large signal voltage gain
VF3
ON
ON
ON
3
0
-2.7
0.3
2
VF4
0
Common-mode rejection ratio
(Input common-mode voltage range)
VF5
ON
ON
OFF
3
0
-0.1
3
3
VF6
1.8
Power supply rejection ratio
VF7
ON
ON
OFF
5.5
0
-0.1
0.3
4
Calculation-
1. Input offset Voltage (Vio)
2. Large signal voltage gain (Av)
3. Common-mode rejection ratio (CMRR)
4. Power supply rejection ratio (PSRR)
VDD
Rf
50[kΩ]
S1
Ri=1[MΩ]
RS=50[Ω]
S2
RL
S3
500[kΩ]
500[kΩ]
0.01[µF]
RK
EK
RK
+15[V]
-15[V]
NULL
VF
DUT
VSS
Ri=1[MΩ]
RS=50[Ω]
50[kΩ]
Vicm
0.47[µF]
0.1[uF]
0.1[uF]
Fig.2 Test Circuit 1 (one channel only)
Vio =
|VF1|
1+Rf/Rs
[V]
Fig.1 Simplified schematic


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