S-89713 Seiko Instruments Inc., S-89713 Datasheet - Page 7

• Manufacturer Part Number: S-89713
• Description: Mini Analog Series Low Input Offset Voltage Cmos Operational Amplifier
• Manufacturer: Seiko Instruments Inc.

Rev.2.0
MINI ANALOG SERIES LOW INPUT OFFSET VOLTAGE CMOS OPERATIONAL AMPLIFIER
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
CMR
IN
R
R
R
R
S
S
S
S
= V
_00
R
R
F
F
DD
/ 2
C
C
D.U.T
D.U.T
−
+
−
+
F
F
V
V
DD
DD
Figure 5
Figure 6
C
R
C
R
F
F
F
F
NULL
NULL
+
−
+
−
V
V
V
V
DDN
DDN
SSN
SSN
Seiko Instruments Inc.
V
V
OUT
OUT
• 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
Test conditions:
When V
When V
PSRR = 20 log
• Input offset voltage (V


The common-mode input signal rejection ratio (CMRR) can be
calculated by the following expression, with V
V
Test conditions:
When V
When V
CMRR = 20 log
The common-mode input voltage range is the range of V
V
specifications.
V
IN
OUT
OUT
.
satisfies the common-mode input signal rejection ratio
−
DD
DD
IN
IN
V
= V
= V
2
= 2.65 V: V
= 5.5 V: V
DD


CMR Max.
CMR Min.
×




R





F
V
: V
R
: V
DD
OUT1
+ R
(V
DD
S
IN
IN
= V
OUT1
= V
= V
IO
S
−
= V
DD2
)
V
DD1
V
IN2
− V
DD1
2
IN1
, V
DD1
, V
, V
V
, V


IN1
OUT
IN1
− V
−
OUT
OUT
OUT
OUT
) − (V


− V
= V
V
DD2
= V
= V
= V
OUT2
measured at each V
IN2
OUT2
S-89713 Series
OUT2
OUT2
OUT1
OUT1
−
CMR
V
,
,
OUT
DD2
− V
)
2


measured at each
IN2
×
)
R
×
F
R
+ R
R
IN
S
DD
F
in which
R
S
+ R
.




7
S
S


