BD7561G ROHM Co. Ltd., BD7561G Datasheet - Page 13

• Manufacturer Part Number: BD7561G
• Description: High Voltage Operation Cmos Operational Amplifiers Input/output Full Swing
• Manufacturer: ROHM Co. Ltd.

BD7561G,BD7561SG,BD7541G,BD7541SG,
BD7562F/FVM,BD7562SF/FVM, BD7542F/FVM,BD7542SF/FVM
●Schematic diagram
●Test circuit1 NULL method
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Input Offset Voltage
Large Signal Voltage Gain
Common-mode Rejection Ratio
(Input Common-mode Voltage Range)
Power Supply Rejection Ratio
-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,VSS,EK,Vicm Unit : [V]
Vicm
Parameter
RS ＝ 50[Ω]
RS ＝ 50[Ω]
50[kΩ]
0.015[μF]
Ri=1[MΩ]
Ri=1[MΩ]
SW2
SW1
0.015[μF]
Fig. 93. Schematic diagram
Fig. 94. Test circuit 1 (one channel only)
VF1
VF2
VF3
VF4
VF5
VF6
VF7
VF
VDD
VSS
DUT
CMRR
Vio
PSRR
Av
=
=
20Log
ON
ON
ON
ON
S1
VRL
SW3
=
1+Rf/Rs
=
RL
|VF1|
20Log
20Log
Vo
13/20
2×(1+Rf/Rs)
Rf=50[kΩ]
ON
ON
ON
ON
S2
|VF2-VF3|
0.1[μF]
1.8×(1+Rf/Rs)
3.8×(1+Rf/Rs)
EK
[V]
|VF6-VF7|
|VF4-VF5|
1000[pF]
500[kΩ]
OFF
OFF
OFF
500[kΩ]
ON
S3
[dB]
VDD
14.5
12
12
12
5
[dB]
[dB]
NULL
-15[V]
15[V]
VSS
0
0
0
0.01[μF]
0
-11.5
-0.5
-2.5
EK
-6
-6
VF
Vicm
Technical Note
2009.05 - Rev.A
12
12
6
0
0
Calculation
1
2
3
4