s-89120bph-h4b-tfg Seiko Instruments Inc., s-89120bph-h4b-tfg Datasheet - Page 10

• Manufacturer Part Number: s-89120bph-h4b-tfg
• Description: Mini Analog Series Cmos Operational Amplifier
• Manufacturer: Seiko Instruments Inc.

10
MINI ANALOG SERIES CMOS OPERATIONAL AMPLIFIER
S-89110/89120 Series
1. Power supply voltage rejection ratio, input offset voltage
2. Common-mode input signal rejection ratio, common-mode input voltage range
Test Circuit (Per Circuit)
V
V
IN
CMR
R
R
R
R
S
S
S
S
= V
DD
/ 2
R
R
V
R
R
F
F
DD
F
F
Figure 7
Figure 8
/ 2
−
+
−
+
V
V
DD
DD
V
V
OUT
OUT
Seiko Instruments Inc.
• Power supply voltage rejection ratio (PSRR)
• Common-mode input signal rejection ratio (CMRR)
• Common-mode input voltage range (V
The power supply voltage rejection ratio (PSRR) can be
calculated by the following expression, with V
each V
Test conditions:
When V
When V
PSRR = 20 log
• Input offset voltage (V
V
The common-mode input signal rejection ratio (CMRR) can be
calculated by the following expression, with V
each V
Test conditions:
When V
When V
CMRR = 20 log
The common-mode input voltage range is the range of V
which V
ratio specifications.
IO
=


DD
IN
V
DD
DD
IN
IN
OUT
.
OUT
.
= V
= V
= 1.8 V: V
= 5.0 V: V
−
satisfies the common-mode input signal rejection
CMR Max.
DD
V




2
DD
/ 2: V







V
V
OUT1
V
: V
DD
DD
OUT1
×
IN
IN1
R
IN
= V
= V
= V
F
− V
− V
IO
−
= V
R
+ R
)
DD1
DD2
V
IN2
S
IN2
OUT2
V
DD1
2
IN1
, V
, V
, V
DD1
S
, V


OUT
OUT
OUT
− V
−
OUT
×


= V
= V
= V
V
R
DD2
= V
OUT2
F
R
OUT2
+ R
OUT1
OUT2
S
OUT1
−
CMR
S
,



V
,
DD2
)
2
OUT
OUT


Rev.1.1
measured at
measured at
×
R
F
R
+ R
S
IN
_00
S




in