Datasheet
www.rohm.com TSZ02201-0RFR1G200420-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
11/17
21.Oct.2013 Rev.001
TSZ22111･15･001
BU5255HFV BU5255SHFV
Application Information
NULL Method Conditions for Test circuit 1
VDD, VSS, E
K
, V
ICM
Unit:V
Parameter V
F
SW1 SW2 SW3 VDD VSS E
K
V
ICM
Calculation
Input Offset Voltage V
F1
ON ON OFF 3 0 -0.1 3 1
Large Signal Voltage Gain
V
F2
ON ON ON 3 0
-0.3
0.3 2
V
F3
-2.7
Common-mode Rejection Ratio
(Input Common-mode Voltage Range)
V
F4
ON ON OFF 3 0 -0.1
0
3
V
F5
3
Power Supply Rejection Ratio
V
F6
ON ON OFF 1.8 0
-0.1 0.3 4
V
F7
ON ON OFF 5.5 0
- Calculation -
1. Input Offset Voltage (V
IO
)
2. Large Signal Voltage Gain (A
V
)
3. Common-mode Rejection Ratio (CMRR)
4. Power Supply Rejection Ratio (PSRR)
Application Information - continued
Figure 23. Test Circuit 1
V
ICM
R
S
=50Ω
R
S
=50Ω
R
F
=50kΩ
R
I
=1MΩ
R
I
=1MΩ
0.015μF
0.015μF
SW1
SW2 50kΩ
SW3
R
L
V
RL
0.1μF
E
K
500kΩ
500kΩ
1000pF
V
F
0.01μF
15V
-15V
VDD
VSS
Vo
V
NULL
DUT
|V
F5
-V
F4
|
CMRR = 20Log
V
ICM
× (1+R
F
R
S
)
[dB]
v = 20Log
|V
F3
-V
F2
|
E
K
× (1+R
F
R
S
)
[dB]
PSRR = 20Log
|V
F7
- V
F6
|
VDD × (1+ R
F
R
S
)
[dB]
V
IO
=
1 + R
F
R
S
[V]
|V
F1
|
